lint: reformat everything

default.nix

@@ -1,6 +1,7 @@
-let requiredVersion = import ./minver.nix; in
+let requiredVersion = import ./minver.nix;
 
-if ! builtins ? nixVersion || builtins.compareVersions requiredVersion builtins.nixVersion == 1 then
+in if !builtins ? nixVersion
+|| builtins.compareVersions requiredVersion builtins.nixVersion == 1 then
 
   abort ''
 

flake.nix

@@ -1,44 +1,42 @@
 {
-  inputs = {
-    auxlib.url = "github:auxolotl/lib";
-  };
+  inputs = { auxlib.url = "github:auxolotl/lib"; };
 
-  outputs =
-    { self, auxlib, ... }:
+  outputs = { self, auxlib, ... }:
     let
       inherit (auxlib) lib;
       forAllSystems = self.lib.genAttrs self.lib.systems.flakeExposed;
-    in
-    {
+    in {
       inherit lib;
 
       auxPackages = forAllSystems (system:
-        (
-          let requiredVersion = import ./minver.nix; in
+        (let requiredVersion = import ./minver.nix;
 
-          if ! builtins ? nixVersion || builtins.compareVersions requiredVersion builtins.nixVersion == 1 then
-            abort ''
-              This version of Nixpkgs requires Nix >= ${requiredVersion}, please upgrade:
+        in if !builtins ? nixVersion
+        || builtins.compareVersions requiredVersion builtins.nixVersion
+        == 1 then
+          abort ''
+            This version of Nixpkgs requires Nix >= ${requiredVersion}, please upgrade:
 
-              - If you are running NixOS, `nixos-rebuild' can be used to upgrade your system.
+            - If you are running NixOS, `nixos-rebuild' can be used to upgrade your system.
 
-              - Alternatively, with Nix > 2.0 `nix upgrade-nix' can be used to imperatively
-                upgrade Nix. You may use `nix-env --version' to check which version you have.
+            - Alternatively, with Nix > 2.0 `nix upgrade-nix' can be used to imperatively
+              upgrade Nix. You may use `nix-env --version' to check which version you have.
 
-              - If you installed Nix using the install script (https://nixos.org/nix/install),
-                it is safe to upgrade by running it again:
+            - If you installed Nix using the install script (https://nixos.org/nix/install),
+              it is safe to upgrade by running it again:
 
-                    curl -L https://nixos.org/nix/install | sh
+                  curl -L https://nixos.org/nix/install | sh
 
-              For more information, please see the NixOS release notes at
-              https://nixos.org/nixos/manual or locally at
-              ${toString ./nixos/doc/manual/release-notes}.
+            For more information, please see the NixOS release notes at
+            https://nixos.org/nixos/manual or locally at
+            ${toString ./nixos/doc/manual/release-notes}.
 
-              If you need further help, see https://nixos.org/nixos/support.html
-            ''
-          else
-            import ./pkgs/top-level/default.nix { inherit lib; localSystem = system; }
-        )
-      );
+            If you need further help, see https://nixos.org/nixos/support.html
+          ''
+        else
+          import ./pkgs/top-level/default.nix {
+            inherit lib;
+            localSystem = system;
+          }));
     };
 }

maintainers/team-list.nix

@@ -1,48 +1,42 @@
 /* List of maintainer teams.
-    name = {
-      # Required
-      members = [ maintainer1 maintainer2 ];
-      scope = "Maintain foo packages.";
-      shortName = "foo";
-      # Optional
-      enableFeatureFreezePing = true;
-      githubTeams = [ "my-subsystem" ];
-    };
+     name = {
+       # Required
+       members = [ maintainer1 maintainer2 ];
+       scope = "Maintain foo packages.";
+       shortName = "foo";
+       # Optional
+       enableFeatureFreezePing = true;
+       githubTeams = [ "my-subsystem" ];
+     };
 
-  where
+   where
 
-  - `members` is the list of maintainers belonging to the group,
-  - `scope` describes the scope of the group.
-  - `shortName` short human-readable name
-  - `enableFeatureFreezePing` will ping this team during the Feature Freeze announcements on releases
-    - There is limited mention capacity in a single post, so this should be reserved for critical components
-      or larger ecosystems within nixpkgs.
-  - `githubTeams` will ping specified GitHub teams as well
+   - `members` is the list of maintainers belonging to the group,
+   - `scope` describes the scope of the group.
+   - `shortName` short human-readable name
+   - `enableFeatureFreezePing` will ping this team during the Feature Freeze announcements on releases
+     - There is limited mention capacity in a single post, so this should be reserved for critical components
+       or larger ecosystems within nixpkgs.
+   - `githubTeams` will ping specified GitHub teams as well
 
-  More fields may be added in the future.
+   More fields may be added in the future.
 
-  When editing this file:
-   * keep the list alphabetically sorted
-   * test the validity of the format with:
-       nix-build lib/tests/teams.nix
-  */
+   When editing this file:
+    * keep the list alphabetically sorted
+    * test the validity of the format with:
+        nix-build lib/tests/teams.nix
+*/
 
 { lib }:
 with lib.maintainers; {
   llvm = {
-    members = [];
+    members = [ ];
     scope = "Maintain LLVM package sets and related packages";
     shortName = "LLVM";
     enableFeatureFreezePing = true;
   };
-  lix = {
-    members = [];
-  };
-  python = {
-    members = [];
-  };
-  rust = {
-    members = [];
-  };
+  lix = { members = [ ]; };
+  python = { members = [ ]; };
+  rust = { members = [ ]; };
 }
 

pkgs/build-support/agda/default.nix

@@ -1,56 +1,45 @@
 # Builder for Agda packages.
 
-{ stdenv, lib, self, Agda, runCommand, makeWrapper, writeText, ghcWithPackages, nixosTests }:
+{ stdenv, lib, self, Agda, runCommand, makeWrapper, writeText, ghcWithPackages
+, nixosTests }:
 
 let
-  inherit (lib)
-    attrValues
-    elem
-    filter
-    filterAttrs
-    isAttrs
-    isList
-    platforms
-    ;
+  inherit (lib) attrValues elem filter filterAttrs isAttrs isList platforms;
 
-  inherit (lib.strings)
-    concatMapStrings
-    concatMapStringsSep
-    optionalString
-    ;
+  inherit (lib.strings) concatMapStrings concatMapStringsSep optionalString;
 
-  withPackages' = {
-    pkgs,
-    ghc ? ghcWithPackages (p: with p; [ ieee754 ])
-  }: let
-    pkgs' = if isList pkgs then pkgs else pkgs self;
-    library-file = writeText "libraries" ''
-      ${(concatMapStringsSep "\n" (p: "${p}/${p.libraryFile}") pkgs')}
-    '';
-    pname = "agdaWithPackages";
-    version = Agda.version;
-  in runCommand "${pname}-${version}" {
-    inherit pname version;
-    nativeBuildInputs = [ makeWrapper ];
-    passthru = {
-      unwrapped = Agda;
-      inherit withPackages;
-      tests = {
-        inherit (nixosTests) agda;
-        allPackages = withPackages (filter self.lib.isUnbrokenAgdaPackage (attrValues self));
+  withPackages' = { pkgs, ghc ? ghcWithPackages (p: with p; [ ieee754 ]) }:
+    let
+      pkgs' = if isList pkgs then pkgs else pkgs self;
+      library-file = writeText "libraries" ''
+        ${(concatMapStringsSep "\n" (p: "${p}/${p.libraryFile}") pkgs')}
+      '';
+      pname = "agdaWithPackages";
+      version = Agda.version;
+    in runCommand "${pname}-${version}" {
+      inherit pname version;
+      nativeBuildInputs = [ makeWrapper ];
+      passthru = {
+        unwrapped = Agda;
+        inherit withPackages;
+        tests = {
+          inherit (nixosTests) agda;
+          allPackages = withPackages
+            (filter self.lib.isUnbrokenAgdaPackage (attrValues self));
+        };
       };
-    };
-    # Agda is a split package with multiple outputs; do not inherit them here.
-    meta = removeAttrs Agda.meta [ "outputsToInstall" ];
-  } ''
-    mkdir -p $out/bin
-    makeWrapper ${Agda.bin}/bin/agda $out/bin/agda \
-      --add-flags "--with-compiler=${ghc}/bin/ghc" \
-      --add-flags "--library-file=${library-file}"
-    ln -s ${Agda.bin}/bin/agda-mode $out/bin/agda-mode
+      # Agda is a split package with multiple outputs; do not inherit them here.
+      meta = removeAttrs Agda.meta [ "outputsToInstall" ];
+    } ''
+      mkdir -p $out/bin
+      makeWrapper ${Agda.bin}/bin/agda $out/bin/agda \
+        --add-flags "--with-compiler=${ghc}/bin/ghc" \
+        --add-flags "--library-file=${library-file}"
+      ln -s ${Agda.bin}/bin/agda-mode $out/bin/agda-mode
     '';
 
-  withPackages = arg: if isAttrs arg then withPackages' arg else withPackages' { pkgs = arg; };
+  withPackages = arg:
+    if isAttrs arg then withPackages' arg else withPackages' { pkgs = arg; };
 
   extensions = [
     "agda"
@@ -64,58 +53,61 @@ let
     "lagda.typ"
   ];
 
-  defaults =
-    { pname
-    , meta
-    , buildInputs ? []
-    , everythingFile ? "./Everything.agda"
-    , includePaths ? []
-    , libraryName ? pname
-    , libraryFile ? "${libraryName}.agda-lib"
-    , buildPhase ? null
-    , installPhase ? null
-    , extraExtensions ? []
-    , ...
-    }: let
-      agdaWithArgs = withPackages (filter (p: p ? isAgdaDerivation) buildInputs);
-      includePathArgs = concatMapStrings (path: "-i" + path + " ") (includePaths ++ [(dirOf everythingFile)]);
-    in
-      {
-        inherit libraryName libraryFile;
+  defaults = { pname, meta, buildInputs ? [ ]
+    , everythingFile ? "./Everything.agda", includePaths ? [ ]
+    , libraryName ? pname, libraryFile ? "${libraryName}.agda-lib"
+    , buildPhase ? null, installPhase ? null, extraExtensions ? [ ], ... }:
+    let
+      agdaWithArgs =
+        withPackages (filter (p: p ? isAgdaDerivation) buildInputs);
+      includePathArgs = concatMapStrings (path: "-i" + path + " ")
+        (includePaths ++ [ (dirOf everythingFile) ]);
+    in {
+      inherit libraryName libraryFile;
 
-        isAgdaDerivation = true;
+      isAgdaDerivation = true;
 
-        buildInputs = buildInputs ++ [ agdaWithArgs ];
+      buildInputs = buildInputs ++ [ agdaWithArgs ];
 
-        buildPhase = if buildPhase != null then buildPhase else ''
-          runHook preBuild
-          agda ${includePathArgs} ${everythingFile}
-          rm ${everythingFile} ${lib.interfaceFile Agda.version everythingFile}
-          runHook postBuild
-        '';
+      buildPhase = if buildPhase != null then
+        buildPhase
+      else ''
+        runHook preBuild
+        agda ${includePathArgs} ${everythingFile}
+        rm ${everythingFile} ${lib.interfaceFile Agda.version everythingFile}
+        runHook postBuild
+      '';
 
-        installPhase = if installPhase != null then installPhase else ''
-          runHook preInstall
-          mkdir -p $out
-          find \( ${concatMapStringsSep " -or " (p: "-name '*.${p}'") (extensions ++ extraExtensions)} \) -exec cp -p --parents -t "$out" {} +
-          runHook postInstall
-        '';
+      installPhase = if installPhase != null then
+        installPhase
+      else ''
+        runHook preInstall
+        mkdir -p $out
+        find \( ${
+          concatMapStringsSep " -or " (p: "-name '*.${p}'")
+          (extensions ++ extraExtensions)
+        } \) -exec cp -p --parents -t "$out" {} +
+        runHook postInstall
+      '';
 
-        # As documented at https://github.com/NixOS/nixpkgs/issues/172752,
-        # we need to set LC_ALL to an UTF-8-supporting locale. However, on
-        # darwin, it seems that there is no standard such locale; luckily,
-        # the referenced issue doesn't seem to surface on darwin. Hence let's
-        # set this only on non-darwin.
-        LC_ALL = optionalString (!stdenv.isDarwin) "C.UTF-8";
+      # As documented at https://github.com/NixOS/nixpkgs/issues/172752,
+      # we need to set LC_ALL to an UTF-8-supporting locale. However, on
+      # darwin, it seems that there is no standard such locale; luckily,
+      # the referenced issue doesn't seem to surface on darwin. Hence let's
+      # set this only on non-darwin.
+      LC_ALL = optionalString (!stdenv.isDarwin) "C.UTF-8";
 
-        meta = if meta.broken or false then meta // { hydraPlatforms = platforms.none; } else meta;
+      meta = if meta.broken or false then
+        meta // { hydraPlatforms = platforms.none; }
+      else
+        meta;
 
-        # Retrieve all packages from the finished package set that have the current package as a dependency and build them
-        passthru.tests =
-          filterAttrs (name: pkg: self.lib.isUnbrokenAgdaPackage pkg && elem pname (map (pkg: pkg.pname) pkg.buildInputs)) self;
-      };
-in
-{
+      # Retrieve all packages from the finished package set that have the current package as a dependency and build them
+      passthru.tests = filterAttrs (name: pkg:
+        self.lib.isUnbrokenAgdaPackage pkg
+        && elem pname (map (pkg: pkg.pname) pkg.buildInputs)) self;
+    };
+in {
   mkDerivation = args: stdenv.mkDerivation (args // defaults args);
 
   inherit withPackages withPackages';

pkgs/build-support/agda/lib.nix

@@ -1,17 +1,18 @@
-{ lib }:
-{
-  /* Returns the Agda interface file to a given Agda file.
-  *
-  * The resulting path may not be normalized.
-  *
-  * Examples:
-  * interfaceFile pkgs.agda.version "./Everything.agda" == "_build/2.6.4.3/agda/./Everything.agdai"
-  * interfaceFile pkgs.agda.version "src/Everything.lagda.tex" == "_build/2.6.4.3/agda/src/Everything.agdai"
-  */
-  interfaceFile = agdaVersion: agdaFile: "_build/" + agdaVersion + "/agda/" + lib.head (builtins.match ''(.*\.)l?agda(\.(md|org|rst|tex|typ))?'' agdaFile) + "agdai";
+{ lib }: {
+  # Returns the Agda interface file to a given Agda file.
+  #
+  # The resulting path may not be normalized.
+  #
+  # Examples:
+  # interfaceFile pkgs.agda.version "./Everything.agda" == "_build/2.6.4.3/agda/./Everything.agdai"
+  # interfaceFile pkgs.agda.version "src/Everything.lagda.tex" == "_build/2.6.4.3/agda/src/Everything.agdai"
+  interfaceFile = agdaVersion: agdaFile:
+    "_build/" + agdaVersion + "/agda/" + lib.head
+    (builtins.match "(.*\\.)l?agda(\\.(md|org|rst|tex|typ))?" agdaFile)
+    + "agdai";
 
-  /* Takes an arbitrary derivation and says whether it is an agda library package
-  *  that is not marked as broken.
-  */
-  isUnbrokenAgdaPackage = pkg: pkg.isAgdaDerivation or false && !pkg.meta.broken;
+  # Takes an arbitrary derivation and says whether it is an agda library package
+  #  that is not marked as broken.
+  isUnbrokenAgdaPackage = pkg:
+    pkg.isAgdaDerivation or false && !pkg.meta.broken;
 }

pkgs/build-support/alternatives/blas/default.nix

@@ -1,44 +1,174 @@
-{ lib, stdenv
-, lapack-reference, openblas
-, isILP64 ? false
+{ lib, stdenv, lapack-reference, openblas, isILP64 ? false
 , blasProvider ? openblas }:
 
 let
   blasFortranSymbols = [
-    "caxpy" "ccopy" "cdotc" "cdotu" "cgbmv" "cgemm" "cgemv" "cgerc" "cgeru"
-    "chbmv" "chemm" "chemv" "cher" "cher2" "cher2k" "cherk" "chpmv" "chpr"
-    "chpr2" "crotg" "cscal" "csrot" "csscal" "cswap" "csymm" "csyr2k" "csyrk"
-    "ctbmv" "ctbsv" "ctpmv" "ctpsv" "ctrmm" "ctrmv" "ctrsm" "ctrsv" "dasum"
-    "daxpy" "dcabs1" "dcopy" "ddot" "dgbmv" "dgemm" "dgemv" "dger" "dnrm2"
-    "drot" "drotg" "drotm" "drotmg" "dsbmv" "dscal" "dsdot" "dspmv" "dspr"
-    "dspr2" "dswap" "dsymm" "dsymv" "dsyr" "dsyr2" "dsyr2k" "dsyrk" "dtbmv"
-    "dtbsv" "dtpmv" "dtpsv" "dtrmm" "dtrmv" "dtrsm" "dtrsv" "dzasum" "dznrm2"
-    "icamax" "idamax" "isamax" "izamax" "lsame" "sasum" "saxpy" "scabs1"
-    "scasum" "scnrm2" "scopy" "sdot" "sdsdot" "sgbmv" "sgemm" "sgemv"
-    "sger" "snrm2" "srot" "srotg" "srotm" "srotmg" "ssbmv" "sscal" "sspmv"
-    "sspr" "sspr2" "sswap" "ssymm" "ssymv" "ssyr" "ssyr2" "ssyr2k" "ssyrk"
-    "stbmv" "stbsv" "stpmv" "stpsv" "strmm" "strmv" "strsm" "strsv" "xerbla"
-    "xerbla_array" "zaxpy" "zcopy" "zdotc" "zdotu" "zdrot" "zdscal" "zgbmv"
-    "zgemm" "zgemv" "zgerc" "zgeru" "zhbmv" "zhemm" "zhemv" "zher" "zher2"
-    "zher2k" "zherk" "zhpmv" "zhpr" "zhpr2" "zrotg" "zscal" "zswap" "zsymm"
-    "zsyr2k" "zsyrk" "ztbmv" "ztbsv" "ztpmv" "ztpsv" "ztrmm" "ztrmv" "ztrsm"
+    "caxpy"
+    "ccopy"
+    "cdotc"
+    "cdotu"
+    "cgbmv"
+    "cgemm"
+    "cgemv"
+    "cgerc"
+    "cgeru"
+    "chbmv"
+    "chemm"
+    "chemv"
+    "cher"
+    "cher2"
+    "cher2k"
+    "cherk"
+    "chpmv"
+    "chpr"
+    "chpr2"
+    "crotg"
+    "cscal"
+    "csrot"
+    "csscal"
+    "cswap"
+    "csymm"
+    "csyr2k"
+    "csyrk"
+    "ctbmv"
+    "ctbsv"
+    "ctpmv"
+    "ctpsv"
+    "ctrmm"
+    "ctrmv"
+    "ctrsm"
+    "ctrsv"
+    "dasum"
+    "daxpy"
+    "dcabs1"
+    "dcopy"
+    "ddot"
+    "dgbmv"
+    "dgemm"
+    "dgemv"
+    "dger"
+    "dnrm2"
+    "drot"
+    "drotg"
+    "drotm"
+    "drotmg"
+    "dsbmv"
+    "dscal"
+    "dsdot"
+    "dspmv"
+    "dspr"
+    "dspr2"
+    "dswap"
+    "dsymm"
+    "dsymv"
+    "dsyr"
+    "dsyr2"
+    "dsyr2k"
+    "dsyrk"
+    "dtbmv"
+    "dtbsv"
+    "dtpmv"
+    "dtpsv"
+    "dtrmm"
+    "dtrmv"
+    "dtrsm"
+    "dtrsv"
+    "dzasum"
+    "dznrm2"
+    "icamax"
+    "idamax"
+    "isamax"
+    "izamax"
+    "lsame"
+    "sasum"
+    "saxpy"
+    "scabs1"
+    "scasum"
+    "scnrm2"
+    "scopy"
+    "sdot"
+    "sdsdot"
+    "sgbmv"
+    "sgemm"
+    "sgemv"
+    "sger"
+    "snrm2"
+    "srot"
+    "srotg"
+    "srotm"
+    "srotmg"
+    "ssbmv"
+    "sscal"
+    "sspmv"
+    "sspr"
+    "sspr2"
+    "sswap"
+    "ssymm"
+    "ssymv"
+    "ssyr"
+    "ssyr2"
+    "ssyr2k"
+    "ssyrk"
+    "stbmv"
+    "stbsv"
+    "stpmv"
+    "stpsv"
+    "strmm"
+    "strmv"
+    "strsm"
+    "strsv"
+    "xerbla"
+    "xerbla_array"
+    "zaxpy"
+    "zcopy"
+    "zdotc"
+    "zdotu"
+    "zdrot"
+    "zdscal"
+    "zgbmv"
+    "zgemm"
+    "zgemv"
+    "zgerc"
+    "zgeru"
+    "zhbmv"
+    "zhemm"
+    "zhemv"
+    "zher"
+    "zher2"
+    "zher2k"
+    "zherk"
+    "zhpmv"
+    "zhpr"
+    "zhpr2"
+    "zrotg"
+    "zscal"
+    "zswap"
+    "zsymm"
+    "zsyr2k"
+    "zsyrk"
+    "ztbmv"
+    "ztbsv"
+    "ztpmv"
+    "ztpsv"
+    "ztrmm"
+    "ztrmv"
+    "ztrsm"
     "ztrsv"
   ];
 
   version = "3";
-  canonicalExtension = if stdenv.hostPlatform.isLinux
-                       then "${stdenv.hostPlatform.extensions.sharedLibrary}.${version}"
-                       else stdenv.hostPlatform.extensions.sharedLibrary;
-
+  canonicalExtension = if stdenv.hostPlatform.isLinux then
+    "${stdenv.hostPlatform.extensions.sharedLibrary}.${version}"
+  else
+    stdenv.hostPlatform.extensions.sharedLibrary;
 
   blasImplementation = lib.getName blasProvider;
-  blasProvider' = if blasImplementation == "mkl"
-                  then blasProvider
-                  else blasProvider.override { blas64 = isILP64; };
+  blasProvider' = if blasImplementation == "mkl" then
+    blasProvider
+  else
+    blasProvider.override { blas64 = isILP64; };
 
-in
-
-assert isILP64 -> blasImplementation == "mkl" || blasProvider'.blas64;
+in assert isILP64 -> blasImplementation == "mkl" || blasProvider'.blas64;
 
 stdenv.mkDerivation {
   pname = "blas";
@@ -46,8 +176,9 @@ stdenv.mkDerivation {
 
   outputs = [ "out" "dev" ];
 
-  meta = (blasProvider'.meta or {}) // {
-    description = "${lib.getName blasProvider} with just the BLAS C and FORTRAN ABI";
+  meta = (blasProvider'.meta or { }) // {
+    description =
+      "${lib.getName blasProvider} with just the BLAS C and FORTRAN ABI";
   };
 
   passthru = {
@@ -63,81 +194,91 @@ stdenv.mkDerivation {
   dontPatchELF = true;
 
   installPhase = (''
-  mkdir -p $out/lib $dev/include $dev/lib/pkgconfig
+    mkdir -p $out/lib $dev/include $dev/lib/pkgconfig
 
-  libblas="${lib.getLib blasProvider'}/lib/libblas${canonicalExtension}"
+    libblas="${lib.getLib blasProvider'}/lib/libblas${canonicalExtension}"
 
-  if ! [ -e "$libblas" ]; then
-    echo "$libblas does not exist, ${blasProvider'.name} does not provide libblas."
-    exit 1
-  fi
+    if ! [ -e "$libblas" ]; then
+      echo "$libblas does not exist, ${blasProvider'.name} does not provide libblas."
+      exit 1
+    fi
 
-  $NM -an "$libblas" | cut -f3 -d' ' > symbols
-  for symbol in ${toString blasFortranSymbols}; do
-    grep -q "^$symbol_$" symbols || { echo "$symbol" was not found in "$libblas"; exit 1; }
-  done
+    $NM -an "$libblas" | cut -f3 -d' ' > symbols
+    for symbol in ${toString blasFortranSymbols}; do
+      grep -q "^$symbol_$" symbols || { echo "$symbol" was not found in "$libblas"; exit 1; }
+    done
 
-  cp -L "$libblas" $out/lib/libblas${canonicalExtension}
-  chmod +w $out/lib/libblas${canonicalExtension}
+    cp -L "$libblas" $out/lib/libblas${canonicalExtension}
+    chmod +w $out/lib/libblas${canonicalExtension}
 
-'' + (if stdenv.hostPlatform.isElf then ''
-  patchelf --set-soname libblas${canonicalExtension} $out/lib/libblas${canonicalExtension}
-  patchelf --set-rpath "$(patchelf --print-rpath $out/lib/libblas${canonicalExtension}):${lib.getLib blasProvider'}/lib" $out/lib/libblas${canonicalExtension}
-'' else lib.optionalString (stdenv.hostPlatform.isDarwin) ''
-  install_name_tool \
-    -id $out/lib/libblas${canonicalExtension} \
-    -add_rpath ${lib.getLib blasProvider'}/lib \
-    $out/lib/libblas${canonicalExtension}
-'') + ''
+  '' + (if stdenv.hostPlatform.isElf then ''
+    patchelf --set-soname libblas${canonicalExtension} $out/lib/libblas${canonicalExtension}
+    patchelf --set-rpath "$(patchelf --print-rpath $out/lib/libblas${canonicalExtension}):${
+      lib.getLib blasProvider'
+    }/lib" $out/lib/libblas${canonicalExtension}
+  '' else
+    lib.optionalString (stdenv.hostPlatform.isDarwin) ''
+      install_name_tool \
+        -id $out/lib/libblas${canonicalExtension} \
+        -add_rpath ${lib.getLib blasProvider'}/lib \
+        $out/lib/libblas${canonicalExtension}
+    '') + ''
 
-  if [ "$out/lib/libblas${canonicalExtension}" != "$out/lib/libblas${stdenv.hostPlatform.extensions.sharedLibrary}" ]; then
-    ln -s $out/lib/libblas${canonicalExtension} "$out/lib/libblas${stdenv.hostPlatform.extensions.sharedLibrary}"
-  fi
+        if [ "$out/lib/libblas${canonicalExtension}" != "$out/lib/libblas${stdenv.hostPlatform.extensions.sharedLibrary}" ]; then
+          ln -s $out/lib/libblas${canonicalExtension} "$out/lib/libblas${stdenv.hostPlatform.extensions.sharedLibrary}"
+        fi
 
-  cat <<EOF > $dev/lib/pkgconfig/blas.pc
-Name: blas
-Version: ${version}
-Description: BLAS FORTRAN implementation
-Libs: -L$out/lib -lblas
-Cflags: -I$dev/include
-EOF
+        cat <<EOF > $dev/lib/pkgconfig/blas.pc
+      Name: blas
+      Version: ${version}
+      Description: BLAS FORTRAN implementation
+      Libs: -L$out/lib -lblas
+      Cflags: -I$dev/include
+      EOF
 
-  libcblas="${lib.getLib blasProvider'}/lib/libcblas${canonicalExtension}"
+        libcblas="${lib.getLib blasProvider'}/lib/libcblas${canonicalExtension}"
 
-  if ! [ -e "$libcblas" ]; then
-    echo "$libcblas does not exist, ${blasProvider'.name} does not provide libcblas."
-    exit 1
-  fi
+        if ! [ -e "$libcblas" ]; then
+          echo "$libcblas does not exist, ${blasProvider'.name} does not provide libcblas."
+          exit 1
+        fi
 
-  cp -L "$libcblas" $out/lib/libcblas${canonicalExtension}
-  chmod +w $out/lib/libcblas${canonicalExtension}
+        cp -L "$libcblas" $out/lib/libcblas${canonicalExtension}
+        chmod +w $out/lib/libcblas${canonicalExtension}
 
-'' + (if stdenv.hostPlatform.isElf then ''
-  patchelf --set-soname libcblas${canonicalExtension} $out/lib/libcblas${canonicalExtension}
-  patchelf --set-rpath "$(patchelf --print-rpath $out/lib/libcblas${canonicalExtension}):${lib.getLib blasProvider'}/lib" $out/lib/libcblas${canonicalExtension}
-'' else lib.optionalString stdenv.hostPlatform.isDarwin ''
-  install_name_tool \
-    -id $out/lib/libcblas${canonicalExtension} \
-    -add_rpath ${lib.getLib blasProvider'}/lib \
-    $out/lib/libcblas${canonicalExtension}
-'') + ''
-  if [ "$out/lib/libcblas${canonicalExtension}" != "$out/lib/libcblas${stdenv.hostPlatform.extensions.sharedLibrary}" ]; then
-    ln -s $out/lib/libcblas${canonicalExtension} "$out/lib/libcblas${stdenv.hostPlatform.extensions.sharedLibrary}"
-  fi
+    '' + (if stdenv.hostPlatform.isElf then ''
+      patchelf --set-soname libcblas${canonicalExtension} $out/lib/libcblas${canonicalExtension}
+      patchelf --set-rpath "$(patchelf --print-rpath $out/lib/libcblas${canonicalExtension}):${
+        lib.getLib blasProvider'
+      }/lib" $out/lib/libcblas${canonicalExtension}
+    '' else
+      lib.optionalString stdenv.hostPlatform.isDarwin ''
+        install_name_tool \
+          -id $out/lib/libcblas${canonicalExtension} \
+          -add_rpath ${lib.getLib blasProvider'}/lib \
+          $out/lib/libcblas${canonicalExtension}
+      '') + ''
+          if [ "$out/lib/libcblas${canonicalExtension}" != "$out/lib/libcblas${stdenv.hostPlatform.extensions.sharedLibrary}" ]; then
+            ln -s $out/lib/libcblas${canonicalExtension} "$out/lib/libcblas${stdenv.hostPlatform.extensions.sharedLibrary}"
+          fi
 
-  cp ${lib.getDev lapack-reference}/include/cblas{,_mangling}.h $dev/include
+          cp ${
+            lib.getDev lapack-reference
+          }/include/cblas{,_mangling}.h $dev/include
 
-  cat <<EOF > $dev/lib/pkgconfig/cblas.pc
-Name: cblas
-Version: ${version}
-Description: BLAS C implementation
-Cflags: -I$dev/include
-Libs: -L$out/lib -lcblas
-EOF
-'' + lib.optionalString (blasImplementation == "mkl") ''
-  mkdir -p $out/nix-support
-  echo 'export MKL_INTERFACE_LAYER=${lib.optionalString isILP64 "I"}LP64,GNU' > $out/nix-support/setup-hook
-  ln -s $out/lib/libblas${canonicalExtension} $out/lib/libmkl_rt${stdenv.hostPlatform.extensions.sharedLibrary}
-  ln -sf ${blasProvider'}/include/* $dev/include
-'');
+          cat <<EOF > $dev/lib/pkgconfig/cblas.pc
+        Name: cblas
+        Version: ${version}
+        Description: BLAS C implementation
+        Cflags: -I$dev/include
+        Libs: -L$out/lib -lcblas
+        EOF
+      '' + lib.optionalString (blasImplementation == "mkl") ''
+        mkdir -p $out/nix-support
+        echo 'export MKL_INTERFACE_LAYER=${
+          lib.optionalString isILP64 "I"
+        }LP64,GNU' > $out/nix-support/setup-hook
+        ln -s $out/lib/libblas${canonicalExtension} $out/lib/libmkl_rt${stdenv.hostPlatform.extensions.sharedLibrary}
+        ln -sf ${blasProvider'}/include/* $dev/include
+      '');
 }

pkgs/build-support/alternatives/lapack/default.nix

@@ -1,23 +1,21 @@
-{ lib, stdenv
-, lapack-reference, openblas
-, isILP64 ? false
+{ lib, stdenv, lapack-reference, openblas, isILP64 ? false
 , lapackProvider ? openblas }:
 
 let
 
   version = "3";
-  canonicalExtension = if stdenv.hostPlatform.isLinux
-                       then "${stdenv.hostPlatform.extensions.sharedLibrary}.${version}"
-                       else stdenv.hostPlatform.extensions.sharedLibrary;
+  canonicalExtension = if stdenv.hostPlatform.isLinux then
+    "${stdenv.hostPlatform.extensions.sharedLibrary}.${version}"
+  else
+    stdenv.hostPlatform.extensions.sharedLibrary;
 
   lapackImplementation = lib.getName lapackProvider;
-  lapackProvider' = if lapackImplementation == "mkl"
-                  then lapackProvider
-                  else lapackProvider.override { blas64 = isILP64; };
+  lapackProvider' = if lapackImplementation == "mkl" then
+    lapackProvider
+  else
+    lapackProvider.override { blas64 = isILP64; };
 
-in
-
-assert isILP64 -> lapackImplementation == "mkl" || lapackProvider'.blas64;
+in assert isILP64 -> lapackImplementation == "mkl" || lapackProvider'.blas64;
 
 stdenv.mkDerivation {
   pname = "lapack";
@@ -25,8 +23,9 @@ stdenv.mkDerivation {
 
   outputs = [ "out" "dev" ];
 
-  meta = (lapackProvider'.meta or {}) // {
-    description = "${lib.getName lapackProvider'} with just the LAPACK C and FORTRAN ABI";
+  meta = (lapackProvider'.meta or { }) // {
+    description =
+      "${lib.getName lapackProvider'} with just the LAPACK C and FORTRAN ABI";
   };
 
   passthru = {
@@ -45,69 +44,79 @@ stdenv.mkDerivation {
   dontPatchELF = true;
 
   installPhase = (''
-  mkdir -p $out/lib $dev/include $dev/lib/pkgconfig
+    mkdir -p $out/lib $dev/include $dev/lib/pkgconfig
 
-  liblapack="${lib.getLib lapackProvider'}/lib/liblapack${canonicalExtension}"
+    liblapack="${lib.getLib lapackProvider'}/lib/liblapack${canonicalExtension}"
 
-  if ! [ -e "$liblapack" ]; then
-    echo "$liblapack does not exist, ${lapackProvider'.name} does not provide liblapack."
-    exit 1
-  fi
+    if ! [ -e "$liblapack" ]; then
+      echo "$liblapack does not exist, ${lapackProvider'.name} does not provide liblapack."
+      exit 1
+    fi
 
-  cp -L "$liblapack" $out/lib/liblapack${canonicalExtension}
-  chmod +w $out/lib/liblapack${canonicalExtension}
+    cp -L "$liblapack" $out/lib/liblapack${canonicalExtension}
+    chmod +w $out/lib/liblapack${canonicalExtension}
 
-'' + (lib.optionalString stdenv.hostPlatform.isElf ''
-  patchelf --set-soname liblapack${canonicalExtension} $out/lib/liblapack${canonicalExtension}
-  patchelf --set-rpath "$(patchelf --print-rpath $out/lib/liblapack${canonicalExtension}):${lapackProvider'}/lib" $out/lib/liblapack${canonicalExtension}
-'') + ''
+  '' + (lib.optionalString stdenv.hostPlatform.isElf ''
+    patchelf --set-soname liblapack${canonicalExtension} $out/lib/liblapack${canonicalExtension}
+    patchelf --set-rpath "$(patchelf --print-rpath $out/lib/liblapack${canonicalExtension}):${lapackProvider'}/lib" $out/lib/liblapack${canonicalExtension}
+  '') + ''
 
-  if [ "$out/lib/liblapack${canonicalExtension}" != "$out/lib/liblapack${stdenv.hostPlatform.extensions.sharedLibrary}" ]; then
-    ln -s $out/lib/liblapack${canonicalExtension} "$out/lib/liblapack${stdenv.hostPlatform.extensions.sharedLibrary}"
-  fi
+      if [ "$out/lib/liblapack${canonicalExtension}" != "$out/lib/liblapack${stdenv.hostPlatform.extensions.sharedLibrary}" ]; then
+        ln -s $out/lib/liblapack${canonicalExtension} "$out/lib/liblapack${stdenv.hostPlatform.extensions.sharedLibrary}"
+      fi
 
-  install -D ${lib.getDev lapack-reference}/include/lapack.h $dev/include/lapack.h
+      install -D ${
+        lib.getDev lapack-reference
+      }/include/lapack.h $dev/include/lapack.h
 
-  cat <<EOF > $dev/lib/pkgconfig/lapack.pc
-Name: lapack
-Version: ${version}
-Description: LAPACK FORTRAN implementation
-Cflags: -I$dev/include
-Libs: -L$out/lib -llapack
-EOF
+      cat <<EOF > $dev/lib/pkgconfig/lapack.pc
+    Name: lapack
+    Version: ${version}
+    Description: LAPACK FORTRAN implementation
+    Cflags: -I$dev/include
+    Libs: -L$out/lib -llapack
+    EOF
 
-  liblapacke="${lib.getLib lapackProvider'}/lib/liblapacke${canonicalExtension}"
+      liblapacke="${
+        lib.getLib lapackProvider'
+      }/lib/liblapacke${canonicalExtension}"
 
-  if ! [ -e "$liblapacke" ]; then
-    echo "$liblapacke does not exist, ${lapackProvider'.name} does not provide liblapacke."
-    exit 1
-  fi
+      if ! [ -e "$liblapacke" ]; then
+        echo "$liblapacke does not exist, ${lapackProvider'.name} does not provide liblapacke."
+        exit 1
+      fi
 
-  cp -L "$liblapacke" $out/lib/liblapacke${canonicalExtension}
-  chmod +w $out/lib/liblapacke${canonicalExtension}
+      cp -L "$liblapacke" $out/lib/liblapacke${canonicalExtension}
+      chmod +w $out/lib/liblapacke${canonicalExtension}
 
-'' + (lib.optionalString stdenv.hostPlatform.isElf ''
-  patchelf --set-soname liblapacke${canonicalExtension} $out/lib/liblapacke${canonicalExtension}
-  patchelf --set-rpath "$(patchelf --print-rpath $out/lib/liblapacke${canonicalExtension}):${lib.getLib lapackProvider'}/lib" $out/lib/liblapacke${canonicalExtension}
-'') + ''
+  '' + (lib.optionalString stdenv.hostPlatform.isElf ''
+    patchelf --set-soname liblapacke${canonicalExtension} $out/lib/liblapacke${canonicalExtension}
+    patchelf --set-rpath "$(patchelf --print-rpath $out/lib/liblapacke${canonicalExtension}):${
+      lib.getLib lapackProvider'
+    }/lib" $out/lib/liblapacke${canonicalExtension}
+  '') + ''
 
-  if [ -f "$out/lib/liblapacke.so.3" ]; then
-    ln -s $out/lib/liblapacke.so.3 $out/lib/liblapacke.so
-  fi
+      if [ -f "$out/lib/liblapacke.so.3" ]; then
+        ln -s $out/lib/liblapacke.so.3 $out/lib/liblapacke.so
+      fi
 
-  cp ${lib.getDev lapack-reference}/include/lapacke{,_mangling,_config,_utils}.h $dev/include
+      cp ${
+        lib.getDev lapack-reference
+      }/include/lapacke{,_mangling,_config,_utils}.h $dev/include
 
-  cat <<EOF > $dev/lib/pkgconfig/lapacke.pc
-Name: lapacke
-Version: ${version}
-Description: LAPACK C implementation
-Cflags: -I$dev/include
-Libs: -L$out/lib -llapacke
-EOF
-'' + lib.optionalString (lapackImplementation == "mkl") ''
-  mkdir -p $out/nix-support
-  echo 'export MKL_INTERFACE_LAYER=${lib.optionalString isILP64 "I"}LP64,GNU' > $out/nix-support/setup-hook
-  ln -s $out/lib/liblapack${canonicalExtension} $out/lib/libmkl_rt${stdenv.hostPlatform.extensions.sharedLibrary}
-  ln -sf ${lapackProvider'}/include/* $dev/include
-'');
+      cat <<EOF > $dev/lib/pkgconfig/lapacke.pc
+    Name: lapacke
+    Version: ${version}
+    Description: LAPACK C implementation
+    Cflags: -I$dev/include
+    Libs: -L$out/lib -llapacke
+    EOF
+  '' + lib.optionalString (lapackImplementation == "mkl") ''
+    mkdir -p $out/nix-support
+    echo 'export MKL_INTERFACE_LAYER=${
+      lib.optionalString isILP64 "I"
+    }LP64,GNU' > $out/nix-support/setup-hook
+    ln -s $out/lib/liblapack${canonicalExtension} $out/lib/libmkl_rt${stdenv.hostPlatform.extensions.sharedLibrary}
+    ln -sf ${lapackProvider'}/include/* $dev/include
+  '');
 }

pkgs/build-support/appimage/default.nix

@@ -1,14 +1,5 @@
-{ lib
-, bash
-, binutils-unwrapped
-, coreutils
-, gawk
-, libarchive
-, pv
-, squashfsTools
-, buildFHSEnv
-, pkgs
-}:
+{ lib, bash, binutils-unwrapped, coreutils, gawk, libarchive, pv, squashfsTools
+, buildFHSEnv, pkgs }:
 
 rec {
   appimage-exec = pkgs.substituteAll {
@@ -26,9 +17,9 @@ rec {
     ];
   };
 
-  extract = args@{ name ? "${args.pname}-${args.version}", postExtract ? "", src, ... }: pkgs.runCommand "${name}-extracted" {
-      buildInputs = [ appimage-exec ];
-    } ''
+  extract =
+    args@{ name ? "${args.pname}-${args.version}", postExtract ? "", src, ... }:
+    pkgs.runCommand "${name}-extracted" { buildInputs = [ appimage-exec ]; } ''
       appimage-exec.sh -x $out ${src}
       ${postExtract}
     '';
@@ -38,173 +29,172 @@ rec {
   extractType2 = extract;
   wrapType1 = wrapType2;
 
-  wrapAppImage = args@{
-    src,
-    extraPkgs,
-    meta ? {},
-    ...
-  }: buildFHSEnv
-    (defaultFhsEnvArgs // {
-      targetPkgs = pkgs: [ appimage-exec ]
-        ++ defaultFhsEnvArgs.targetPkgs pkgs ++ extraPkgs pkgs;
+  wrapAppImage = args@{ src, extraPkgs, meta ? { }, ... }:
+    buildFHSEnv (defaultFhsEnvArgs // {
+      targetPkgs = pkgs:
+        [ appimage-exec ] ++ defaultFhsEnvArgs.targetPkgs pkgs
+        ++ extraPkgs pkgs;
 
       runScript = "appimage-exec.sh -w ${src} --";
 
       meta = {
         sourceProvenance = with lib.sourceTypes; [ binaryNativeCode ];
       } // meta;
-    } // (removeAttrs args (builtins.attrNames (builtins.functionArgs wrapAppImage))));
+    } // (removeAttrs args
+      (builtins.attrNames (builtins.functionArgs wrapAppImage))));
 
-  wrapType2 = args@{ src, extraPkgs ? pkgs: [ ], ... }: wrapAppImage
-    (args // {
+  wrapType2 = args@{ src, extraPkgs ? pkgs: [ ], ... }:
+    wrapAppImage (args // {
       inherit extraPkgs;
-      src = extract (lib.filterAttrs (key: value: builtins.elem key [ "name" "pname" "version" "src" ]) args);
+      src = extract (lib.filterAttrs
+        (key: value: builtins.elem key [ "name" "pname" "version" "src" ])
+        args);
 
       # passthru src to make nix-update work
       # hack to keep the origin position (unsafeGetAttrPos)
-      passthru = lib.pipe args [
-        lib.attrNames
-        (lib.remove "src")
-        (removeAttrs args)
-      ] // args.passthru or { };
+      passthru =
+        lib.pipe args [ lib.attrNames (lib.remove "src") (removeAttrs args) ]
+        // args.passthru or { };
     });
 
   defaultFhsEnvArgs = {
     # Most of the packages were taken from the Steam chroot
-    targetPkgs = pkgs: with pkgs; [
-      gtk3
-      bashInteractive
-      gnome.zenity
-      xorg.xrandr
-      which
-      perl
-      xdg-utils
-      iana-etc
-      krb5
-      gsettings-desktop-schemas
-      hicolor-icon-theme # dont show a gtk warning about hicolor not being installed
-    ];
+    targetPkgs = pkgs:
+      with pkgs; [
+        gtk3
+        bashInteractive
+        gnome.zenity
+        xorg.xrandr
+        which
+        perl
+        xdg-utils
+        iana-etc
+        krb5
+        gsettings-desktop-schemas
+        hicolor-icon-theme # dont show a gtk warning about hicolor not being installed
+      ];
 
     # list of libraries expected in an appimage environment:
     # https://github.com/AppImage/pkg2appimage/blob/master/excludelist
-    multiPkgs = pkgs: with pkgs; [
-      desktop-file-utils
-      xorg.libXcomposite
-      xorg.libXtst
-      xorg.libXrandr
-      xorg.libXext
-      xorg.libX11
-      xorg.libXfixes
-      libGL
+    multiPkgs = pkgs:
+      with pkgs; [
+        desktop-file-utils
+        xorg.libXcomposite
+        xorg.libXtst
+        xorg.libXrandr
+        xorg.libXext
+        xorg.libX11
+        xorg.libXfixes
+        libGL
 
-      gst_all_1.gstreamer
-      gst_all_1.gst-plugins-ugly
-      gst_all_1.gst-plugins-base
-      libdrm
-      xorg.xkeyboardconfig
-      xorg.libpciaccess
+        gst_all_1.gstreamer
+        gst_all_1.gst-plugins-ugly
+        gst_all_1.gst-plugins-base
+        libdrm
+        xorg.xkeyboardconfig
+        xorg.libpciaccess
 
-      glib
-      gtk2
-      bzip2
-      zlib
-      gdk-pixbuf
+        glib
+        gtk2
+        bzip2
+        zlib
+        gdk-pixbuf
 
-      xorg.libXinerama
-      xorg.libXdamage
-      xorg.libXcursor
-      xorg.libXrender
-      xorg.libXScrnSaver
-      xorg.libXxf86vm
-      xorg.libXi
-      xorg.libSM
-      xorg.libICE
-      freetype
-      curlWithGnuTls
-      nspr
-      nss
-      fontconfig
-      cairo
-      pango
-      expat
-      dbus
-      cups
-      libcap
-      SDL2
-      libusb1
-      udev
-      dbus-glib
-      atk
-      at-spi2-atk
-      libudev0-shim
+        xorg.libXinerama
+        xorg.libXdamage
+        xorg.libXcursor
+        xorg.libXrender
+        xorg.libXScrnSaver
+        xorg.libXxf86vm
+        xorg.libXi
+        xorg.libSM
+        xorg.libICE
+        freetype
+        curlWithGnuTls
+        nspr
+        nss
+        fontconfig
+        cairo
+        pango
+        expat
+        dbus
+        cups
+        libcap
+        SDL2
+        libusb1
+        udev
+        dbus-glib
+        atk
+        at-spi2-atk
+        libudev0-shim
 
-      xorg.libXt
-      xorg.libXmu
-      xorg.libxcb
-      xorg.xcbutil
-      xorg.xcbutilwm
-      xorg.xcbutilimage
-      xorg.xcbutilkeysyms
-      xorg.xcbutilrenderutil
-      libGLU
-      libuuid
-      libogg
-      libvorbis
-      SDL
-      SDL2_image
-      glew110
-      openssl
-      libidn
-      tbb
-      wayland
-      mesa
-      libxkbcommon
-      vulkan-loader
+        xorg.libXt
+        xorg.libXmu
+        xorg.libxcb
+        xorg.xcbutil
+        xorg.xcbutilwm
+        xorg.xcbutilimage
+        xorg.xcbutilkeysyms
+        xorg.xcbutilrenderutil
+        libGLU
+        libuuid
+        libogg
+        libvorbis
+        SDL
+        SDL2_image
+        glew110
+        openssl
+        libidn
+        tbb
+        wayland
+        mesa
+        libxkbcommon
+        vulkan-loader
 
-      flac
-      freeglut
-      libjpeg
-      libpng12
-      libpulseaudio
-      libsamplerate
-      libmikmod
-      libthai
-      libtheora
-      libtiff
-      pixman
-      speex
-      SDL_image
-      SDL_ttf
-      SDL_mixer
-      SDL2_ttf
-      SDL2_mixer
-      libappindicator-gtk2
-      libcaca
-      libcanberra
-      libgcrypt
-      libvpx
-      librsvg
-      xorg.libXft
-      libvdpau
-      alsa-lib
+        flac
+        freeglut
+        libjpeg
+        libpng12
+        libpulseaudio
+        libsamplerate
+        libmikmod
+        libthai
+        libtheora
+        libtiff
+        pixman
+        speex
+        SDL_image
+        SDL_ttf
+        SDL_mixer
+        SDL2_ttf
+        SDL2_mixer
+        libappindicator-gtk2
+        libcaca
+        libcanberra
+        libgcrypt
+        libvpx
+        librsvg
+        xorg.libXft
+        libvdpau
+        alsa-lib
 
-      harfbuzz
-      e2fsprogs
-      libgpg-error
-      keyutils.lib
-      libjack2
-      fribidi
-      p11-kit
+        harfbuzz
+        e2fsprogs
+        libgpg-error
+        keyutils.lib
+        libjack2
+        fribidi
+        p11-kit
 
-      gmp
+        gmp
 
-      # libraries not on the upstream include list, but nevertheless expected
-      # by at least one appimage
-      libtool.lib # for Synfigstudio
-      xorg.libxshmfence # for apple-music-electron
-      at-spi2-core
-      pciutils # for FreeCAD
-      pipewire # immersed-vr wayland support
-    ];
+        # libraries not on the upstream include list, but nevertheless expected
+        # by at least one appimage
+        libtool.lib # for Synfigstudio
+        xorg.libxshmfence # for apple-music-electron
+        at-spi2-core
+        pciutils # for FreeCAD
+        pipewire # immersed-vr wayland support
+      ];
   };
 }

pkgs/build-support/binary-cache/default.nix

@@ -6,9 +6,7 @@
 # For example, in the Nixpkgs repo:
 # nix-build -E 'with import ./. {}; mkBinaryCache { rootPaths = [hello]; }'
 
-{ name ? "binary-cache"
-, rootPaths
-}:
+{ name ? "binary-cache", rootPaths }:
 
 stdenv.mkDerivation {
   inherit name;

pkgs/build-support/bintools-wrapper/default.nix

@@ -5,60 +5,48 @@
 # script that sets up the right environment variables so that the
 # compiler and the linker just "work".
 
-{ name ? ""
-, lib
-, stdenvNoCC
-, runtimeShell
-, bintools ? null, libc ? null, coreutils ? null, gnugrep ? null
-, netbsd ? null, netbsdCross ? null
-, sharedLibraryLoader ?
-  if libc == null then
-    null
-  else if stdenvNoCC.targetPlatform.isNetBSD then
-    if !(targetPackages ? netbsdCross) then
-      netbsd.ld_elf_so
-    else if libc != targetPackages.netbsdCross.headers then
-      targetPackages.netbsdCross.ld_elf_so
-    else
-      null
+{ name ? "", lib, stdenvNoCC, runtimeShell, bintools ? null, libc ? null
+, coreutils ? null, gnugrep ? null, netbsd ? null, netbsdCross ? null
+, sharedLibraryLoader ? if libc == null then
+  null
+else if stdenvNoCC.targetPlatform.isNetBSD then
+  if !(targetPackages ? netbsdCross) then
+    netbsd.ld_elf_so
+  else if libc != targetPackages.netbsdCross.headers then
+    targetPackages.netbsdCross.ld_elf_so
   else
-    lib.getLib libc
-, nativeTools, noLibc ? false, nativeLibc, nativePrefix ? ""
-, propagateDoc ? bintools != null && bintools ? man
-, extraPackages ? [], extraBuildCommands ? ""
-, isGNU ? bintools.isGNU or false
-, isLLVM ? bintools.isLLVM or false
-, isCCTools ? bintools.isCCTools or false
-, expand-response-params
-, targetPackages ? {}
-, useMacosReexportHack ? false
+    null
+else
+  lib.getLib libc, nativeTools, noLibc ? false, nativeLibc, nativePrefix ? ""
+, propagateDoc ? bintools != null && bintools ? man, extraPackages ? [ ]
+, extraBuildCommands ? "", isGNU ? bintools.isGNU or false
+, isLLVM ? bintools.isLLVM or false, isCCTools ? bintools.isCCTools or false
+, expand-response-params, targetPackages ? { }, useMacosReexportHack ? false
 , wrapGas ? false
 
-# Note: the hardening flags are part of the bintools-wrapper, rather than
-# the cc-wrapper, because a few of them are handled by the linker.
+  # Note: the hardening flags are part of the bintools-wrapper, rather than
+  # the cc-wrapper, because a few of them are handled by the linker.
 , defaultHardeningFlags ? [
-    "bindnow"
-    "format"
-    "fortify"
-    "fortify3"
-    "pic"
-    "relro"
-    "stackprotector"
-    "strictoverflow"
-  ] ++ lib.optional (with stdenvNoCC;
-    # Musl-based platforms will keep "pie", other platforms will not.
-    # If you change this, make sure to update section `{#sec-hardening-in-nixpkgs}`
-    # in the nixpkgs manual to inform users about the defaults.
-    targetPlatform.libc == "musl"
-    # Except when:
-    #    - static aarch64, where compilation works, but produces segfaulting dynamically linked binaries.
-    #    - static armv7l, where compilation fails.
-    && !(targetPlatform.isAarch && targetPlatform.isStatic)
-  ) "pie"
+  "bindnow"
+  "format"
+  "fortify"
+  "fortify3"
+  "pic"
+  "relro"
+  "stackprotector"
+  "strictoverflow"
+] ++ lib.optional (with stdenvNoCC;
+# Musl-based platforms will keep "pie", other platforms will not.
+# If you change this, make sure to update section `{#sec-hardening-in-nixpkgs}`
+# in the nixpkgs manual to inform users about the defaults.
+  targetPlatform.libc == "musl"
+  # Except when:
+  #    - static aarch64, where compilation works, but produces segfaulting dynamically linked binaries.
+  #    - static armv7l, where compilation fails.
+  && !(targetPlatform.isAarch && targetPlatform.isStatic)) "pie"
 
-# Darwin code signing support utilities
-, postLinkSignHook ? null, signingUtils ? null
-}:
+  # Darwin code signing support utilities
+, postLinkSignHook ? null, signingUtils ? null }:
 
 assert nativeTools -> !propagateDoc && nativePrefix != "";
 assert !nativeTools -> bintools != null && coreutils != null && gnugrep != null;
@@ -67,22 +55,9 @@ assert (noLibc || nativeLibc) == (libc == null);
 
 let
   inherit (lib)
-    attrByPath
-    concatStringsSep
-    getBin
-    getDev
-    getLib
-    getName
-    getVersion
-    hasSuffix
-    optional
-    optionalAttrs
-    optionals
-    optionalString
-    platforms
-    removePrefix
-    replaceStrings
-    ;
+    attrByPath concatStringsSep getBin getDev getLib getName getVersion
+    hasSuffix optional optionalAttrs optionals optionalString platforms
+    removePrefix replaceStrings;
 
   inherit (stdenvNoCC) hostPlatform targetPlatform;
 
@@ -91,7 +66,7 @@ let
   # TODO(@Ericson2314) Make unconditional, or optional but always true by
   # default.
   targetPrefix = optionalString (targetPlatform != hostPlatform)
-                                        (targetPlatform.config + "-");
+    (targetPlatform.config + "-");
 
   bintoolsVersion = getVersion bintools;
   bintoolsName = removePrefix targetPrefix (getName bintools);
@@ -104,44 +79,61 @@ let
   coreutils_bin = optionalString (!nativeTools) (getBin coreutils);
 
   # See description in cc-wrapper.
-  suffixSalt = replaceStrings ["-" "."] ["_" "_"] targetPlatform.config;
+  suffixSalt = replaceStrings [ "-" "." ] [ "_" "_" ] targetPlatform.config;
 
   # The dynamic linker has different names on different platforms. This is a
   # shell glob that ought to match it.
-  dynamicLinker =
-    /**/ if sharedLibraryLoader == null then ""
-    else if targetPlatform.libc == "musl"             then "${sharedLibraryLoader}/lib/ld-musl-*"
-    else if targetPlatform.libc == "uclibc"           then "${sharedLibraryLoader}/lib/ld*-uClibc.so.1"
-    else if (targetPlatform.libc == "bionic" && targetPlatform.is32bit) then "/system/bin/linker"
-    else if (targetPlatform.libc == "bionic" && targetPlatform.is64bit) then "/system/bin/linker64"
-    else if targetPlatform.libc == "nblibc"           then "${sharedLibraryLoader}/libexec/ld.elf_so"
-    else if targetPlatform.system == "i686-linux"     then "${sharedLibraryLoader}/lib/ld-linux.so.2"
-    else if targetPlatform.system == "x86_64-linux"   then "${sharedLibraryLoader}/lib/ld-linux-x86-64.so.2"
+  dynamicLinker = if sharedLibraryLoader == null then
+    ""
+  else if targetPlatform.libc == "musl" then
+    "${sharedLibraryLoader}/lib/ld-musl-*"
+  else if targetPlatform.libc == "uclibc" then
+    "${sharedLibraryLoader}/lib/ld*-uClibc.so.1"
+  else if (targetPlatform.libc == "bionic" && targetPlatform.is32bit) then
+    "/system/bin/linker"
+  else if (targetPlatform.libc == "bionic" && targetPlatform.is64bit) then
+    "/system/bin/linker64"
+  else if targetPlatform.libc == "nblibc" then
+    "${sharedLibraryLoader}/libexec/ld.elf_so"
+  else if targetPlatform.system == "i686-linux" then
+    "${sharedLibraryLoader}/lib/ld-linux.so.2"
+  else if targetPlatform.system == "x86_64-linux" then
+    "${sharedLibraryLoader}/lib/ld-linux-x86-64.so.2"
     # ELFv1 (.1) or ELFv2 (.2) ABI
-    else if targetPlatform.isPower64                  then "${sharedLibraryLoader}/lib/ld64.so.*"
+  else if targetPlatform.isPower64 then
+    "${sharedLibraryLoader}/lib/ld64.so.*"
     # ARM with a wildcard, which can be "" or "-armhf".
-    else if (with targetPlatform; isAarch32 && isLinux)   then "${sharedLibraryLoader}/lib/ld-linux*.so.3"
-    else if targetPlatform.system == "aarch64-linux"  then "${sharedLibraryLoader}/lib/ld-linux-aarch64.so.1"
-    else if targetPlatform.system == "powerpc-linux"  then "${sharedLibraryLoader}/lib/ld.so.1"
-    else if targetPlatform.isMips                     then "${sharedLibraryLoader}/lib/ld.so.1"
+  else if (with targetPlatform; isAarch32 && isLinux) then
+    "${sharedLibraryLoader}/lib/ld-linux*.so.3"
+  else if targetPlatform.system == "aarch64-linux" then
+    "${sharedLibraryLoader}/lib/ld-linux-aarch64.so.1"
+  else if targetPlatform.system == "powerpc-linux" then
+    "${sharedLibraryLoader}/lib/ld.so.1"
+  else if targetPlatform.isMips then
+    "${sharedLibraryLoader}/lib/ld.so.1"
     # `ld-linux-riscv{32,64}-<abi>.so.1`
-    else if targetPlatform.isRiscV                    then "${sharedLibraryLoader}/lib/ld-linux-riscv*.so.1"
-    else if targetPlatform.isLoongArch64              then "${sharedLibraryLoader}/lib/ld-linux-loongarch*.so.1"
-    else if targetPlatform.isDarwin                   then "/usr/lib/dyld"
-    else if targetPlatform.isFreeBSD                  then "/libexec/ld-elf.so.1"
-    else if hasSuffix "pc-gnu" targetPlatform.config then "ld.so.1"
-    else "";
+  else if targetPlatform.isRiscV then
+    "${sharedLibraryLoader}/lib/ld-linux-riscv*.so.1"
+  else if targetPlatform.isLoongArch64 then
+    "${sharedLibraryLoader}/lib/ld-linux-loongarch*.so.1"
+  else if targetPlatform.isDarwin then
+    "/usr/lib/dyld"
+  else if targetPlatform.isFreeBSD then
+    "/libexec/ld-elf.so.1"
+  else if hasSuffix "pc-gnu" targetPlatform.config then
+    "ld.so.1"
+  else
+    "";
 
-in
-
-stdenvNoCC.mkDerivation {
+in stdenvNoCC.mkDerivation {
   pname = targetPrefix
     + (if name != "" then name else "${bintoolsName}-wrapper");
   version = optionalString (bintools != null) bintoolsVersion;
 
   preferLocalBuild = true;
 
-  outputs = [ "out" ] ++ optionals propagateDoc ([ "man" ] ++ optional (bintools ? info) "info");
+  outputs = [ "out" ]
+    ++ optionals propagateDoc ([ "man" ] ++ optional (bintools ? info) "info");
 
   passthru = {
     inherit targetPrefix suffixSalt;
@@ -155,7 +147,7 @@ stdenvNoCC.mkDerivation {
             (setenv "NIX_LDFLAGS_${suffixSalt}" (concat (getenv "NIX_LDFLAGS_${suffixSalt}") " -L" arg "/lib")))
           (when (file-directory-p (concat arg "/lib64"))
             (setenv "NIX_LDFLAGS_${suffixSalt}" (concat (getenv "NIX_LDFLAGS_${suffixSalt}") " -L" arg "/lib64"))))
-        '(${concatStringsSep " " (map (pkg: "\"${pkg}\"") pkgs)}))
+        '(${concatStringsSep " " (map (pkg: ''"${pkg}"'') pkgs)}))
     '';
 
     inherit defaultHardeningFlags;
@@ -170,36 +162,36 @@ stdenvNoCC.mkDerivation {
     src=$PWD
   '';
 
-  installPhase =
-    ''
-      mkdir -p $out/bin $out/nix-support
+  installPhase = ''
+    mkdir -p $out/bin $out/nix-support
 
-      wrap() {
-        local dst="$1"
-        local wrapper="$2"
-        export prog="$3"
-        export use_response_file_by_default=${if isCCTools then "1" else "0"}
-        substituteAll "$wrapper" "$out/bin/$dst"
-        chmod +x "$out/bin/$dst"
-      }
-    ''
+    wrap() {
+      local dst="$1"
+      local wrapper="$2"
+      export prog="$3"
+      export use_response_file_by_default=${if isCCTools then "1" else "0"}
+      substituteAll "$wrapper" "$out/bin/$dst"
+      chmod +x "$out/bin/$dst"
+    }
+  ''
 
     + (if nativeTools then ''
       echo ${nativePrefix} > $out/nix-support/orig-bintools
 
       ldPath="${nativePrefix}/bin"
-    '' else ''
-      echo $bintools_bin > $out/nix-support/orig-bintools
+    '' else
+      ''
+        echo $bintools_bin > $out/nix-support/orig-bintools
 
-      ldPath="${bintools_bin}/bin"
-    ''
+        ldPath="${bintools_bin}/bin"
+      ''
 
-    # Solaris needs an additional ld wrapper.
-    + optionalString (targetPlatform.isSunOS && nativePrefix != "") ''
-      ldPath="${nativePrefix}/bin"
-      exec="$ldPath/${targetPrefix}ld"
-      wrap ld-solaris ${./ld-solaris-wrapper.sh}
-    '')
+      # Solaris needs an additional ld wrapper.
+      + optionalString (targetPlatform.isSunOS && nativePrefix != "") ''
+        ldPath="${nativePrefix}/bin"
+        exec="$ldPath/${targetPrefix}ld"
+        wrap ld-solaris ${./ld-solaris-wrapper.sh}
+      '')
 
     # If we are asked to wrap `gas` and this bintools has it,
     # then symlink it (`as` will be symlinked next).
@@ -224,11 +216,15 @@ stdenvNoCC.mkDerivation {
 
     '' + (if !useMacosReexportHack then ''
       if [ -e ''${ld:-$ldPath/${targetPrefix}ld} ]; then
-        wrap ${targetPrefix}ld ${./ld-wrapper.sh} ''${ld:-$ldPath/${targetPrefix}ld}
+        wrap ${targetPrefix}ld ${
+          ./ld-wrapper.sh
+        } ''${ld:-$ldPath/${targetPrefix}ld}
       fi
     '' else ''
       ldInner="${targetPrefix}ld-reexport-delegate"
-      wrap "$ldInner" ${./macos-sierra-reexport-hack.bash} ''${ld:-$ldPath/${targetPrefix}ld}
+      wrap "$ldInner" ${
+        ./macos-sierra-reexport-hack.bash
+      } ''${ld:-$ldPath/${targetPrefix}ld}
       wrap "${targetPrefix}ld" ${./ld-wrapper.sh} "$out/bin/$ldInner"
       unset ldInner
     '') + ''
@@ -242,10 +238,7 @@ stdenvNoCC.mkDerivation {
   strictDeps = true;
   depsTargetTargetPropagated = extraPackages;
 
-  setupHooks = [
-    ../setup-hooks/role.bash
-    ./setup-hook.sh
-  ];
+  setupHooks = [ ../setup-hooks/role.bash ./setup-hook.sh ];
 
   postFixup =
     ##
@@ -253,45 +246,50 @@ stdenvNoCC.mkDerivation {
     ##
     optionalString (libc != null) (''
       touch "$out/nix-support/libc-ldflags"
-      echo "-L${libc_lib}${libc.libdir or "/lib"}" >> $out/nix-support/libc-ldflags
+      echo "-L${libc_lib}${
+        libc.libdir or "/lib"
+      }" >> $out/nix-support/libc-ldflags
 
       echo "${libc_lib}" > $out/nix-support/orig-libc
       echo "${libc_dev}" > $out/nix-support/orig-libc-dev
     ''
 
-    ##
-    ## Dynamic linker support
-    ##
-    + optionalString (sharedLibraryLoader != null) ''
-      if [[ -z ''${dynamicLinker+x} ]]; then
-        echo "Don't know the name of the dynamic linker for platform '${targetPlatform.config}', so guessing instead." >&2
-        local dynamicLinker="${sharedLibraryLoader}/lib/ld*.so.?"
-      fi
-    ''
+      ##
+      ## Dynamic linker support
+      ##
+      + optionalString (sharedLibraryLoader != null) ''
+        if [[ -z ''${dynamicLinker+x} ]]; then
+          echo "Don't know the name of the dynamic linker for platform '${targetPlatform.config}', so guessing instead." >&2
+          local dynamicLinker="${sharedLibraryLoader}/lib/ld*.so.?"
+        fi
+      ''
 
-    # Expand globs to fill array of options
-    + ''
-      dynamicLinker=($dynamicLinker)
+      # Expand globs to fill array of options
+      + ''
+        dynamicLinker=($dynamicLinker)
 
-      case ''${#dynamicLinker[@]} in
-        0) echo "No dynamic linker found for platform '${targetPlatform.config}'." >&2;;
-        1) echo "Using dynamic linker: '$dynamicLinker'" >&2;;
-        *) echo "Multiple dynamic linkers found for platform '${targetPlatform.config}'." >&2;;
-      esac
+        case ''${#dynamicLinker[@]} in
+          0) echo "No dynamic linker found for platform '${targetPlatform.config}'." >&2;;
+          1) echo "Using dynamic linker: '$dynamicLinker'" >&2;;
+          *) echo "Multiple dynamic linkers found for platform '${targetPlatform.config}'." >&2;;
+        esac
 
-      if [ -n "''${dynamicLinker-}" ]; then
-        echo $dynamicLinker > $out/nix-support/dynamic-linker
+        if [ -n "''${dynamicLinker-}" ]; then
+          echo $dynamicLinker > $out/nix-support/dynamic-linker
 
-        ${if targetPlatform.isDarwin then ''
-          printf "export LD_DYLD_PATH=%q\n" "$dynamicLinker" >> $out/nix-support/setup-hook
-        '' else optionalString (sharedLibraryLoader != null) ''
-          if [ -e ${sharedLibraryLoader}/lib/32/ld-linux.so.2 ]; then
-            echo ${sharedLibraryLoader}/lib/32/ld-linux.so.2 > $out/nix-support/dynamic-linker-m32
-          fi
-          touch $out/nix-support/ld-set-dynamic-linker
-        ''}
-      fi
-    '')
+          ${
+            if targetPlatform.isDarwin then ''
+              printf "export LD_DYLD_PATH=%q\n" "$dynamicLinker" >> $out/nix-support/setup-hook
+            '' else
+              optionalString (sharedLibraryLoader != null) ''
+                if [ -e ${sharedLibraryLoader}/lib/32/ld-linux.so.2 ]; then
+                  echo ${sharedLibraryLoader}/lib/32/ld-linux.so.2 > $out/nix-support/dynamic-linker-m32
+                fi
+                touch $out/nix-support/ld-set-dynamic-linker
+              ''
+          }
+        fi
+      '')
 
     ##
     ## User env support
@@ -301,7 +299,9 @@ stdenvNoCC.mkDerivation {
     # install the wrapper, you get tools like objdump (same for any
     # binaries of libc).
     + optionalString (!nativeTools) ''
-      printWords ${bintools_bin} ${optionalString (libc != null) libc_bin} > $out/nix-support/propagated-user-env-packages
+      printWords ${bintools_bin} ${
+        optionalString (libc != null) libc_bin
+      } > $out/nix-support/propagated-user-env-packages
     ''
 
     ##
@@ -376,19 +376,19 @@ stdenvNoCC.mkDerivation {
     ###
     ### Ensure consistent LC_VERSION_MIN_MACOSX
     ###
-    + optionalString targetPlatform.isDarwin (
-      let
-        inherit (targetPlatform)
-          darwinPlatform darwinSdkVersion
-          darwinMinVersion darwinMinVersionVariable;
-      in ''
-        export darwinPlatform=${darwinPlatform}
-        export darwinMinVersion=${darwinMinVersion}
-        export darwinSdkVersion=${darwinSdkVersion}
-        export darwinMinVersionVariable=${darwinMinVersionVariable}
-        substituteAll ${./add-darwin-ldflags-before.sh} $out/nix-support/add-local-ldflags-before.sh
-      ''
-    )
+    + optionalString targetPlatform.isDarwin (let
+      inherit (targetPlatform)
+        darwinPlatform darwinSdkVersion darwinMinVersion
+        darwinMinVersionVariable;
+    in ''
+      export darwinPlatform=${darwinPlatform}
+      export darwinMinVersion=${darwinMinVersion}
+      export darwinSdkVersion=${darwinSdkVersion}
+      export darwinMinVersionVariable=${darwinMinVersionVariable}
+      substituteAll ${
+        ./add-darwin-ldflags-before.sh
+      } $out/nix-support/add-local-ldflags-before.sh
+    '')
 
     ##
     ## Code signing on Apple Silicon
@@ -416,7 +416,8 @@ stdenvNoCC.mkDerivation {
   env = {
     # for substitution in utils.bash
     # TODO(@sternenseemann): invent something cleaner than passing in "" in case of absence
-    expandResponseParams = "${expand-response-params}/bin/expand-response-params";
+    expandResponseParams =
+      "${expand-response-params}/bin/expand-response-params";
     # TODO(@sternenseemann): rename env var via stdenv rebuild
     shell = (getBin runtimeShell + runtimeShell.shellPath or "");
     gnugrep_bin = optionalString (!nativeTools) gnugrep;
@@ -426,14 +427,12 @@ stdenvNoCC.mkDerivation {
     default_hardening_flags_str = builtins.toString defaultHardeningFlags;
   };
 
-  meta =
-    let bintools_ = optionalAttrs (bintools != null) bintools; in
-    (optionalAttrs (bintools_ ? meta) (removeAttrs bintools.meta ["priority"])) //
-    { description =
-        attrByPath ["meta" "description"] "System binary utilities" bintools_
+  meta = let bintools_ = optionalAttrs (bintools != null) bintools;
+  in (optionalAttrs (bintools_ ? meta)
+    (removeAttrs bintools.meta [ "priority" ])) // {
+      description =
+        attrByPath [ "meta" "description" ] "System binary utilities" bintools_
         + " (wrapper script)";
       priority = 10;
-  } // optionalAttrs useMacosReexportHack {
-    platforms = platforms.darwin;
-  };
+    } // optionalAttrs useMacosReexportHack { platforms = platforms.darwin; };
 }

pkgs/build-support/build-bazel-package/default.nix

@@ -1,36 +1,20 @@
-{ stdenv
-, cacert
-, lib
-, writeCBin
-}:
+{ stdenv, cacert, lib, writeCBin }:
 
-args@{
-  name ? "${args.pname}-${args.version}"
-, bazel
-, bazelFlags ? []
-, bazelBuildFlags ? []
-, bazelTestFlags ? []
-, bazelRunFlags ? []
-, runTargetFlags ? []
-, bazelFetchFlags ? []
-, bazelTargets ? []
-, bazelTestTargets ? []
-, bazelRunTarget ? null
-, buildAttrs
-, fetchAttrs
+args@{ name ? "${args.pname}-${args.version}", bazel, bazelFlags ? [ ]
+, bazelBuildFlags ? [ ], bazelTestFlags ? [ ], bazelRunFlags ? [ ]
+, runTargetFlags ? [ ], bazelFetchFlags ? [ ], bazelTargets ? [ ]
+, bazelTestTargets ? [ ], bazelRunTarget ? null, buildAttrs, fetchAttrs
 
-  # Newer versions of Bazel are moving away from built-in rules_cc and instead
-  # allow fetching it as an external dependency in a WORKSPACE file[1]. If
-  # removed in the fixed-output fetch phase, building will fail to download it.
-  # This can be seen e.g. in #73097
-  #
-  # This option allows configuring the removal of rules_cc in cases where a
-  # project depends on it via an external dependency.
-  #
-  # [1]: https://github.com/bazelbuild/rules_cc
-, removeRulesCC ? true
-, removeLocalConfigCc ? true
-, removeLocal ? true
+# Newer versions of Bazel are moving away from built-in rules_cc and instead
+# allow fetching it as an external dependency in a WORKSPACE file[1]. If
+# removed in the fixed-output fetch phase, building will fail to download it.
+# This can be seen e.g. in #73097
+#
+# This option allows configuring the removal of rules_cc in cases where a
+# project depends on it via an external dependency.
+#
+# [1]: https://github.com/bazelbuild/rules_cc
+, removeRulesCC ? true, removeLocalConfigCc ? true, removeLocal ? true
 
   # Use build --nobuild instead of fetch. This allows fetching the dependencies
   # required for the build as configured, rather than fetching all the dependencies
@@ -43,25 +27,13 @@ args@{
   # Bazel wants all headers / libraries to come from, like when using
   # CROSSTOOL. Weirdly, we can still get the flags through the wrapped
   # compiler.
-, dontAddBazelOpts ? false
-, ...
-}:
+, dontAddBazelOpts ? false, ... }:
 
 let
   fArgs = removeAttrs args [ "buildAttrs" "fetchAttrs" "removeRulesCC" ] // {
-    inherit
-      name
-      bazelFlags
-      bazelBuildFlags
-      bazelTestFlags
-      bazelRunFlags
-      runTargetFlags
-      bazelFetchFlags
-      bazelTargets
-      bazelTestTargets
-      bazelRunTarget
-      dontAddBazelOpts
-      ;
+    inherit name bazelFlags bazelBuildFlags bazelTestFlags bazelRunFlags
+      runTargetFlags bazelFetchFlags bazelTargets bazelTestTargets
+      bazelRunTarget dontAddBazelOpts;
   };
   fBuildAttrs = fArgs // buildAttrs;
   fFetchAttrs = fArgs // removeAttrs fetchAttrs [ "sha256" ];
@@ -83,7 +55,10 @@ let
         $bazelFlags \
         ${lib.strings.concatStringsSep " " additionalFlags} \
         ${lib.strings.concatStringsSep " " targets} \
-        ${lib.optionalString (targetRunFlags != []) " -- " + lib.strings.concatStringsSep " " targetRunFlags}
+        ${
+          lib.optionalString (targetRunFlags != [ ]) " -- "
+          + lib.strings.concatStringsSep " " targetRunFlags
+        }
     '';
   # we need this to chmod dangling symlinks on darwin, gnu coreutils refuses to do so:
   # chmod: cannot operate on dangling symlink '$symlink'
@@ -107,15 +82,15 @@ let
       }
     }
   '';
-in
-stdenv.mkDerivation (fBuildAttrs // {
+in stdenv.mkDerivation (fBuildAttrs // {
 
   deps = stdenv.mkDerivation (fFetchAttrs // {
     name = "${name}-deps.tar.gz";
 
-    impureEnvVars = lib.fetchers.proxyImpureEnvVars ++ fFetchAttrs.impureEnvVars or [];
+    impureEnvVars = lib.fetchers.proxyImpureEnvVars
+      ++ fFetchAttrs.impureEnvVars or [ ];
 
-    nativeBuildInputs = fFetchAttrs.nativeBuildInputs or [] ++ [ bazel ];
+    nativeBuildInputs = fFetchAttrs.nativeBuildInputs or [ ] ++ [ bazel ];
 
     preHook = fFetchAttrs.preHook or "" + ''
       export bazelOut="$(echo ''${NIX_BUILD_TOP}/output | sed -e 's,//,/,g')"
@@ -132,18 +107,16 @@ stdenv.mkDerivation (fBuildAttrs // {
     buildPhase = fFetchAttrs.buildPhase or ''
       runHook preBuild
 
-      ${
-        bazelCmd {
-          cmd = if fetchConfigured then "build --nobuild" else "fetch";
-          additionalFlags = [
-            # We disable multithreading for the fetching phase since it can lead to timeouts with many dependencies/threads:
-            # https://github.com/bazelbuild/bazel/issues/6502
-            "--loading_phase_threads=1"
-            "$bazelFetchFlags"
-          ] ++ (if fetchConfigured then ["--jobs" "$NIX_BUILD_CORES"] else []);
-          targets = fFetchAttrs.bazelTargets ++ fFetchAttrs.bazelTestTargets;
-        }
-      }
+      ${bazelCmd {
+        cmd = if fetchConfigured then "build --nobuild" else "fetch";
+        additionalFlags = [
+          # We disable multithreading for the fetching phase since it can lead to timeouts with many dependencies/threads:
+          # https://github.com/bazelbuild/bazel/issues/6502
+          "--loading_phase_threads=1"
+          "$bazelFetchFlags"
+        ] ++ (if fetchConfigured then [ "--jobs" "$NIX_BUILD_CORES" ] else [ ]);
+        targets = fFetchAttrs.bazelTargets ++ fFetchAttrs.bazelTestTargets;
+      }}
 
       runHook postBuild
     '';
@@ -153,10 +126,13 @@ stdenv.mkDerivation (fBuildAttrs // {
 
       # Remove all built in external workspaces, Bazel will recreate them when building
       rm -rf $bazelOut/external/{bazel_tools,\@bazel_tools.marker}
-      ${lib.optionalString removeRulesCC "rm -rf $bazelOut/external/{rules_cc,\\@rules_cc.marker}"}
+      ${lib.optionalString removeRulesCC
+      "rm -rf $bazelOut/external/{rules_cc,\\@rules_cc.marker}"}
       rm -rf $bazelOut/external/{embedded_jdk,\@embedded_jdk.marker}
-      ${lib.optionalString removeLocalConfigCc "rm -rf $bazelOut/external/{local_config_cc,\\@local_config_cc.marker}"}
-      ${lib.optionalString removeLocal "rm -rf $bazelOut/external/{local_*,\\@local_*.marker}"}
+      ${lib.optionalString removeLocalConfigCc
+      "rm -rf $bazelOut/external/{local_config_cc,\\@local_config_cc.marker}"}
+      ${lib.optionalString removeLocal
+      "rm -rf $bazelOut/external/{local_*,\\@local_*.marker}"}
 
       # Clear markers
       find $bazelOut/external -name '@*\.marker' -exec sh -c 'echo > {}' \;
@@ -182,8 +158,8 @@ stdenv.mkDerivation (fBuildAttrs // {
         rm "$symlink"
         ln -sf "$new_target" "$symlink"
     '' + lib.optionalString stdenv.isDarwin ''
-        # on linux symlink permissions cannot be modified, so we modify those on darwin to match the linux ones
-        ${chmodder}/bin/chmodder "$symlink"
+      # on linux symlink permissions cannot be modified, so we modify those on darwin to match the linux ones
+      ${chmodder}/bin/chmodder "$symlink"
     '' + ''
       done
 
@@ -195,13 +171,14 @@ stdenv.mkDerivation (fBuildAttrs // {
     '');
 
     dontFixup = true;
-    allowedRequisites = [];
+    allowedRequisites = [ ];
 
     outputHashAlgo = "sha256";
     outputHash = fetchAttrs.sha256;
   });
 
-  nativeBuildInputs = fBuildAttrs.nativeBuildInputs or [] ++ [ (bazel.override { enableNixHacks = true; }) ];
+  nativeBuildInputs = fBuildAttrs.nativeBuildInputs or [ ]
+    ++ [ (bazel.override { enableNixHacks = true; }) ];
 
   preHook = fBuildAttrs.preHook or "" + ''
     export bazelOut="$NIX_BUILD_TOP/output"
@@ -257,30 +234,27 @@ stdenv.mkDerivation (fBuildAttrs // {
       done
     fi
 
-    ${
-      bazelCmd {
-        cmd = "test";
-        additionalFlags =
-          ["--test_output=errors"] ++ fBuildAttrs.bazelTestFlags ++ ["--jobs" "$NIX_BUILD_CORES"];
-        targets = fBuildAttrs.bazelTestTargets;
-      }
-    }
-    ${
-      bazelCmd {
-        cmd = "build";
-        additionalFlags = fBuildAttrs.bazelBuildFlags ++ ["--jobs" "$NIX_BUILD_CORES"];
-        targets = fBuildAttrs.bazelTargets;
-      }
-    }
-    ${
-      bazelCmd {
-        cmd = "run";
-        additionalFlags = fBuildAttrs.bazelRunFlags ++ [ "--jobs" "$NIX_BUILD_CORES" ];
-        # Bazel run only accepts a single target, but `bazelCmd` expects `targets` to be a list.
-        targets = lib.optionals (fBuildAttrs.bazelRunTarget != null) [ fBuildAttrs.bazelRunTarget ];
-        targetRunFlags = fBuildAttrs.runTargetFlags;
-      }
-    }
+    ${bazelCmd {
+      cmd = "test";
+      additionalFlags = [ "--test_output=errors" ] ++ fBuildAttrs.bazelTestFlags
+        ++ [ "--jobs" "$NIX_BUILD_CORES" ];
+      targets = fBuildAttrs.bazelTestTargets;
+    }}
+    ${bazelCmd {
+      cmd = "build";
+      additionalFlags = fBuildAttrs.bazelBuildFlags
+        ++ [ "--jobs" "$NIX_BUILD_CORES" ];
+      targets = fBuildAttrs.bazelTargets;
+    }}
+    ${bazelCmd {
+      cmd = "run";
+      additionalFlags = fBuildAttrs.bazelRunFlags
+        ++ [ "--jobs" "$NIX_BUILD_CORES" ];
+      # Bazel run only accepts a single target, but `bazelCmd` expects `targets` to be a list.
+      targets = lib.optionals (fBuildAttrs.bazelRunTarget != null)
+        [ fBuildAttrs.bazelRunTarget ];
+      targetRunFlags = fBuildAttrs.runTargetFlags;
+    }}
     runHook postBuild
   '';
 })

pkgs/build-support/build-fhsenv-bubblewrap/buildFHSEnv.nix

@@ -1,22 +1,11 @@
-{ lib
-, stdenv
-, runCommandLocal
-, buildEnv
-, writeText
-, writeShellScriptBin
-, pkgs
-, pkgsi686Linux
-}:
+{ lib, stdenv, runCommandLocal, buildEnv, writeText, writeShellScriptBin, pkgs
+, pkgsi686Linux }:
 
-{ profile ? ""
-, targetPkgs ? pkgs: []
-, multiPkgs ? pkgs: []
+{ profile ? "", targetPkgs ? pkgs: [ ], multiPkgs ? pkgs: [ ]
 , multiArch ? false # Whether to include 32bit packages
-, extraBuildCommands ? ""
-, extraBuildCommandsMulti ? ""
-, extraOutputsToInstall ? []
-, ... # for name, or pname+version
-} @ args:
+, extraBuildCommands ? "", extraBuildCommandsMulti ? ""
+, extraOutputsToInstall ? [ ], ... # for name, or pname+version
+}@args:
 
 # HOWTO:
 # All packages (most likely programs) returned from targetPkgs will only be
@@ -36,9 +25,10 @@
 let
   inherit (stdenv) is64bit;
 
-  name = if (args ? pname && args ? version)
-    then "${args.pname}-${args.version}"
-    else args.name;
+  name = if (args ? pname && args ? version) then
+    "${args.pname}-${args.version}"
+  else
+    args.name;
 
   # "use of glibc_multi is only supported on x86_64-linux"
   isMultiBuild = multiArch && stdenv.system == "x86_64-linux";
@@ -46,7 +36,8 @@ let
 
   # list of packages (usually programs) which match the host's architecture
   # (which includes stuff from multiPkgs)
-  targetPaths = targetPkgs pkgs ++ (if multiPkgs == null then [] else multiPkgs pkgs);
+  targetPaths = targetPkgs pkgs
+    ++ (if multiPkgs == null then [ ] else multiPkgs pkgs);
 
   # list of packages which are for x86 (only multiPkgs, only for x86_64 hosts)
   multiPaths = multiPkgs pkgsi686Linux;
@@ -74,13 +65,13 @@ let
     bzip2
     xz
   ];
-  baseMultiPaths = with pkgsi686Linux; [
-    (toString gcc.cc.lib)
-  ];
+  baseMultiPaths = with pkgsi686Linux; [ (toString gcc.cc.lib) ];
 
   ldconfig = writeShellScriptBin "ldconfig" ''
     # due to a glibc bug, 64-bit ldconfig complains about patchelf'd 32-bit libraries, so we use 32-bit ldconfig when we have them
-    exec ${if isMultiBuild then pkgsi686Linux.glibc.bin else pkgs.glibc.bin}/bin/ldconfig -f /etc/ld.so.conf -C /etc/ld.so.cache "$@"
+    exec ${
+      if isMultiBuild then pkgsi686Linux.glibc.bin else pkgs.glibc.bin
+    }/bin/ldconfig -f /etc/ld.so.conf -C /etc/ld.so.cache "$@"
   '';
 
   etcProfile = writeText "profile" ''
@@ -207,9 +198,8 @@ let
     ln -Ls ${staticUsrProfileTarget}/lib/32/ld-linux.so.2 lib/
   '';
 
-  setupLibDirs = if isTargetBuild
-                 then setupLibDirsTarget
-                 else setupLibDirsMulti;
+  setupLibDirs =
+    if isTargetBuild then setupLibDirsTarget else setupLibDirsMulti;
 
   # the target profile is the actual profile that will be used for the chroot
   setupTargetProfile = ''
@@ -218,11 +208,11 @@ let
 
     ${setupLibDirs}
 
-    '' + lib.optionalString isMultiBuild ''
+  '' + lib.optionalString isMultiBuild ''
     if [ -d "${staticUsrProfileMulti}/share" ]; then
       cp -rLf ${staticUsrProfileMulti}/share share
     fi
-    '' + ''
+  '' + ''
     if [ -d "${staticUsrProfileTarget}/share" ]; then
       if [ -d share ]; then
         chmod -R 755 share
@@ -254,7 +244,8 @@ let
 
 in runCommandLocal "${name}-fhs" {
   passthru = {
-    inherit args baseTargetPaths targetPaths baseMultiPaths ldconfig isMultiBuild;
+    inherit args baseTargetPaths targetPaths baseMultiPaths ldconfig
+      isMultiBuild;
   };
 } ''
   mkdir -p $out

pkgs/build-support/build-fhsenv-bubblewrap/default.nix

@@ -1,55 +1,45 @@
-{ lib
-, stdenv
-, callPackage
-, runCommandLocal
-, writeShellScript
-, glibc
-, pkgsi686Linux
-, coreutils
-, bubblewrap
-}:
+{ lib, stdenv, callPackage, runCommandLocal, writeShellScript, glibc
+, pkgsi686Linux, coreutils, bubblewrap }:
 
-{ runScript ? "bash"
-, extraInstallCommands ? ""
-, meta ? {}
-, passthru ? {}
-, extraPreBwrapCmds ? ""
-, extraBwrapArgs ? []
-, unshareUser ? false
-, unshareIpc ? false
-, unsharePid ? false
-, unshareNet ? false
-, unshareUts ? false
-, unshareCgroup ? false
-, privateTmp ? false
-, dieWithParent ? true
-, ...
-} @ args:
+{ runScript ? "bash", extraInstallCommands ? "", meta ? { }, passthru ? { }
+, extraPreBwrapCmds ? "", extraBwrapArgs ? [ ], unshareUser ? false
+, unshareIpc ? false, unsharePid ? false, unshareNet ? false, unshareUts ? false
+, unshareCgroup ? false, privateTmp ? false, dieWithParent ? true, ... }@args:
 
-assert (!args ? pname || !args ? version) -> (args ? name); # You must provide name if pname or version (preferred) is missing.
+assert (!args ? pname || !args ? version) -> (args
+  ? name); # You must provide name if pname or version (preferred) is missing.
 
 let
   inherit (lib)
-    concatLines
-    concatStringsSep
-    escapeShellArgs
-    filter
-    optionalString
-    splitString
-    ;
+    concatLines concatStringsSep escapeShellArgs filter optionalString
+    splitString;
 
   inherit (lib.attrsets) removeAttrs;
 
   name = args.name or "${args.pname}-${args.version}";
   executableName = args.pname or args.name;
   # we don't know which have been supplied, and want to avoid defaulting missing attrs to null. Passed into runCommandLocal
-  nameAttrs = lib.filterAttrs (key: value: builtins.elem key [ "name" "pname" "version" ]) args;
+  nameAttrs =
+    lib.filterAttrs (key: value: builtins.elem key [ "name" "pname" "version" ])
+    args;
 
   buildFHSEnv = callPackage ./buildFHSEnv.nix { };
 
   fhsenv = buildFHSEnv (removeAttrs args [
-    "runScript" "extraInstallCommands" "meta" "passthru" "extraPreBwrapCmds" "extraBwrapArgs" "dieWithParent"
-    "unshareUser" "unshareCgroup" "unshareUts" "unshareNet" "unsharePid" "unshareIpc" "privateTmp"
+    "runScript"
+    "extraInstallCommands"
+    "meta"
+    "passthru"
+    "extraPreBwrapCmds"
+    "extraBwrapArgs"
+    "dieWithParent"
+    "unshareUser"
+    "unshareCgroup"
+    "unshareUts"
+    "unshareNet"
+    "unsharePid"
+    "unshareIpc"
+    "privateTmp"
   ]);
 
   etcBindEntries = let
@@ -117,163 +107,165 @@ let
     EOF
     ldconfig &> /dev/null
   '';
-  init = run: writeShellScript "${name}-init" ''
-    source /etc/profile
-    ${createLdConfCache}
-    exec ${run} "$@"
-  '';
+  init = run:
+    writeShellScript "${name}-init" ''
+      source /etc/profile
+      ${createLdConfCache}
+      exec ${run} "$@"
+    '';
 
-  indentLines = str: concatLines (map (s: "  " + s) (filter (s: s != "") (splitString "\n" str)));
-  bwrapCmd = { initArgs ? "" }: ''
-    ${extraPreBwrapCmds}
-    ignored=(/nix /dev /proc /etc ${optionalString privateTmp "/tmp"})
-    ro_mounts=()
-    symlinks=()
-    etc_ignored=()
+  indentLines = str:
+    concatLines
+    (map (s: "  " + s) (filter (s: s != "") (splitString "\n" str)));
+  bwrapCmd = { initArgs ? "" }:
+    ''
+      ${extraPreBwrapCmds}
+      ignored=(/nix /dev /proc /etc ${optionalString privateTmp "/tmp"})
+      ro_mounts=()
+      symlinks=()
+      etc_ignored=()
 
-    # loop through all entries of root in the fhs environment, except its /etc.
-    for i in ${fhsenv}/*; do
-      path="/''${i##*/}"
-      if [[ $path == '/etc' ]]; then
-        :
-      elif [[ -L $i ]]; then
-        symlinks+=(--symlink "$(${coreutils}/bin/readlink "$i")" "$path")
-        ignored+=("$path")
-      else
-        ro_mounts+=(--ro-bind "$i" "$path")
-        ignored+=("$path")
-      fi
-    done
-
-    # loop through the entries of /etc in the fhs environment.
-    if [[ -d ${fhsenv}/etc ]]; then
-      for i in ${fhsenv}/etc/*; do
+      # loop through all entries of root in the fhs environment, except its /etc.
+      for i in ${fhsenv}/*; do
         path="/''${i##*/}"
-        # NOTE: we're binding /etc/fonts and /etc/ssl/certs from the host so we
-        # don't want to override it with a path from the FHS environment.
-        if [[ $path == '/fonts' || $path == '/ssl' ]]; then
+        if [[ $path == '/etc' ]]; then
+          :
+        elif [[ -L $i ]]; then
+          symlinks+=(--symlink "$(${coreutils}/bin/readlink "$i")" "$path")
+          ignored+=("$path")
+        else
+          ro_mounts+=(--ro-bind "$i" "$path")
+          ignored+=("$path")
+        fi
+      done
+
+      # loop through the entries of /etc in the fhs environment.
+      if [[ -d ${fhsenv}/etc ]]; then
+        for i in ${fhsenv}/etc/*; do
+          path="/''${i##*/}"
+          # NOTE: we're binding /etc/fonts and /etc/ssl/certs from the host so we
+          # don't want to override it with a path from the FHS environment.
+          if [[ $path == '/fonts' || $path == '/ssl' ]]; then
+            continue
+          fi
+          if [[ -L $i ]]; then
+            symlinks+=(--symlink "$i" "/etc$path")
+          else
+            ro_mounts+=(--ro-bind "$i" "/etc$path")
+          fi
+          etc_ignored+=("/etc$path")
+        done
+      fi
+
+      # propagate /etc from the actual host if nested
+      if [[ -e /.host-etc ]]; then
+        ro_mounts+=(--ro-bind /.host-etc /.host-etc)
+      else
+        ro_mounts+=(--ro-bind /etc /.host-etc)
+      fi
+
+      # link selected etc entries from the actual root
+      for i in ${escapeShellArgs etcBindEntries}; do
+        if [[ "''${etc_ignored[@]}" =~ "$i" ]]; then
           continue
         fi
-        if [[ -L $i ]]; then
-          symlinks+=(--symlink "$i" "/etc$path")
-        else
-          ro_mounts+=(--ro-bind "$i" "/etc$path")
+        if [[ -e $i ]]; then
+          symlinks+=(--symlink "/.host-etc/''${i#/etc/}" "$i")
         fi
-        etc_ignored+=("/etc$path")
       done
-    fi
 
-    # propagate /etc from the actual host if nested
-    if [[ -e /.host-etc ]]; then
-      ro_mounts+=(--ro-bind /.host-etc /.host-etc)
-    else
-      ro_mounts+=(--ro-bind /etc /.host-etc)
-    fi
-
-    # link selected etc entries from the actual root
-    for i in ${escapeShellArgs etcBindEntries}; do
-      if [[ "''${etc_ignored[@]}" =~ "$i" ]]; then
-        continue
-      fi
-      if [[ -e $i ]]; then
-        symlinks+=(--symlink "/.host-etc/''${i#/etc/}" "$i")
-      fi
-    done
-
-    declare -a auto_mounts
-    # loop through all directories in the root
-    for dir in /*; do
-      # if it is a directory and it is not ignored
-      if [[ -d "$dir" ]] && [[ ! "''${ignored[@]}" =~ "$dir" ]]; then
-        # add it to the mount list
-        auto_mounts+=(--bind "$dir" "$dir")
-      fi
-    done
-
-    declare -a x11_args
-    # Always mount a tmpfs on /tmp/.X11-unix
-    # Rationale: https://github.com/flatpak/flatpak/blob/be2de97e862e5ca223da40a895e54e7bf24dbfb9/common/flatpak-run.c#L277
-    x11_args+=(--tmpfs /tmp/.X11-unix)
-
-    # Try to guess X socket path. This doesn't cover _everything_, but it covers some things.
-    if [[ "$DISPLAY" == :* ]]; then
-      display_nr=''${DISPLAY#?}
-      local_socket=/tmp/.X11-unix/X$display_nr
-      x11_args+=(--ro-bind-try "$local_socket" "$local_socket")
-    fi
-
-    ${optionalString privateTmp ''
-    # sddm places XAUTHORITY in /tmp
-    if [[ "$XAUTHORITY" == /tmp/* ]]; then
-      x11_args+=(--ro-bind-try "$XAUTHORITY" "$XAUTHORITY")
-    fi
-
-    # dbus-run-session puts the socket in /tmp
-    IFS=";" read -ra addrs <<<"$DBUS_SESSION_BUS_ADDRESS"
-    for addr in "''${addrs[@]}"; do
-      [[ "$addr" == unix:* ]] || continue
-      IFS="," read -ra parts <<<"''${addr#unix:}"
-      for part in "''${parts[@]}"; do
-        printf -v part '%s' "''${part//\\/\\\\}"
-        printf -v part '%b' "''${part//%/\\x}"
-        [[ "$part" == path=/tmp/* ]] || continue
-        x11_args+=(--ro-bind-try "''${part#path=}" "''${part#path=}")
+      declare -a auto_mounts
+      # loop through all directories in the root
+      for dir in /*; do
+        # if it is a directory and it is not ignored
+        if [[ -d "$dir" ]] && [[ ! "''${ignored[@]}" =~ "$dir" ]]; then
+          # add it to the mount list
+          auto_mounts+=(--bind "$dir" "$dir")
+        fi
       done
-    done
-    ''}
 
-    cmd=(
-      ${bubblewrap}/bin/bwrap
-      --dev-bind /dev /dev
-      --proc /proc
-      --chdir "$(pwd)"
-      ${optionalString unshareUser "--unshare-user"}
-      ${optionalString unshareIpc "--unshare-ipc"}
-      ${optionalString unsharePid "--unshare-pid"}
-      ${optionalString unshareNet "--unshare-net"}
-      ${optionalString unshareUts "--unshare-uts"}
-      ${optionalString unshareCgroup "--unshare-cgroup"}
-      ${optionalString dieWithParent "--die-with-parent"}
-      --ro-bind /nix /nix
-      ${optionalString privateTmp "--tmpfs /tmp"}
-      # Our glibc will look for the cache in its own path in `/nix/store`.
-      # As such, we need a cache to exist there, because pressure-vessel
-      # depends on the existence of an ld cache. However, adding one
-      # globally proved to be a bad idea (see #100655), the solution we
-      # settled on being mounting one via bwrap.
-      # Also, the cache needs to go to both 32 and 64 bit glibcs, for games
-      # of both architectures to work.
-      --tmpfs ${glibc}/etc \
-      --tmpfs /etc \
-      --symlink /etc/ld.so.conf ${glibc}/etc/ld.so.conf \
-      --symlink /etc/ld.so.cache ${glibc}/etc/ld.so.cache \
-      --ro-bind ${glibc}/etc/rpc ${glibc}/etc/rpc \
-      --remount-ro ${glibc}/etc \
-  '' + optionalString fhsenv.isMultiBuild (indentLines ''
+      declare -a x11_args
+      # Always mount a tmpfs on /tmp/.X11-unix
+      # Rationale: https://github.com/flatpak/flatpak/blob/be2de97e862e5ca223da40a895e54e7bf24dbfb9/common/flatpak-run.c#L277
+      x11_args+=(--tmpfs /tmp/.X11-unix)
+
+      # Try to guess X socket path. This doesn't cover _everything_, but it covers some things.
+      if [[ "$DISPLAY" == :* ]]; then
+        display_nr=''${DISPLAY#?}
+        local_socket=/tmp/.X11-unix/X$display_nr
+        x11_args+=(--ro-bind-try "$local_socket" "$local_socket")
+      fi
+
+      ${optionalString privateTmp ''
+        # sddm places XAUTHORITY in /tmp
+        if [[ "$XAUTHORITY" == /tmp/* ]]; then
+          x11_args+=(--ro-bind-try "$XAUTHORITY" "$XAUTHORITY")
+        fi
+
+        # dbus-run-session puts the socket in /tmp
+        IFS=";" read -ra addrs <<<"$DBUS_SESSION_BUS_ADDRESS"
+        for addr in "''${addrs[@]}"; do
+          [[ "$addr" == unix:* ]] || continue
+          IFS="," read -ra parts <<<"''${addr#unix:}"
+          for part in "''${parts[@]}"; do
+            printf -v part '%s' "''${part//\\/\\\\}"
+            printf -v part '%b' "''${part//%/\\x}"
+            [[ "$part" == path=/tmp/* ]] || continue
+            x11_args+=(--ro-bind-try "''${part#path=}" "''${part#path=}")
+          done
+        done
+      ''}
+
+      cmd=(
+        ${bubblewrap}/bin/bwrap
+        --dev-bind /dev /dev
+        --proc /proc
+        --chdir "$(pwd)"
+        ${optionalString unshareUser "--unshare-user"}
+        ${optionalString unshareIpc "--unshare-ipc"}
+        ${optionalString unsharePid "--unshare-pid"}
+        ${optionalString unshareNet "--unshare-net"}
+        ${optionalString unshareUts "--unshare-uts"}
+        ${optionalString unshareCgroup "--unshare-cgroup"}
+        ${optionalString dieWithParent "--die-with-parent"}
+        --ro-bind /nix /nix
+        ${optionalString privateTmp "--tmpfs /tmp"}
+        # Our glibc will look for the cache in its own path in `/nix/store`.
+        # As such, we need a cache to exist there, because pressure-vessel
+        # depends on the existence of an ld cache. However, adding one
+        # globally proved to be a bad idea (see #100655), the solution we
+        # settled on being mounting one via bwrap.
+        # Also, the cache needs to go to both 32 and 64 bit glibcs, for games
+        # of both architectures to work.
+        --tmpfs ${glibc}/etc \
+        --tmpfs /etc \
+        --symlink /etc/ld.so.conf ${glibc}/etc/ld.so.conf \
+        --symlink /etc/ld.so.cache ${glibc}/etc/ld.so.cache \
+        --ro-bind ${glibc}/etc/rpc ${glibc}/etc/rpc \
+        --remount-ro ${glibc}/etc \
+    '' + optionalString fhsenv.isMultiBuild (indentLines ''
       --tmpfs ${pkgsi686Linux.glibc}/etc \
       --symlink /etc/ld.so.conf ${pkgsi686Linux.glibc}/etc/ld.so.conf \
       --symlink /etc/ld.so.cache ${pkgsi686Linux.glibc}/etc/ld.so.cache \
       --ro-bind ${pkgsi686Linux.glibc}/etc/rpc ${pkgsi686Linux.glibc}/etc/rpc \
       --remount-ro ${pkgsi686Linux.glibc}/etc \
-  '') + ''
-      "''${ro_mounts[@]}"
-      "''${symlinks[@]}"
-      "''${auto_mounts[@]}"
-      "''${x11_args[@]}"
-      ${concatStringsSep "\n  " extraBwrapArgs}
-      ${init runScript} ${initArgs}
-    )
-    exec "''${cmd[@]}"
-  '';
+    '') + ''
+        "''${ro_mounts[@]}"
+        "''${symlinks[@]}"
+        "''${auto_mounts[@]}"
+        "''${x11_args[@]}"
+        ${concatStringsSep "\n  " extraBwrapArgs}
+        ${init runScript} ${initArgs}
+      )
+      exec "''${cmd[@]}"
+    '';
 
   bin = writeShellScript "${name}-bwrap" (bwrapCmd { initArgs = ''"$@"''; });
 in runCommandLocal name (nameAttrs // {
   inherit meta;
 
   passthru = passthru // {
-    env = runCommandLocal "${name}-shell-env" {
-      shellHook = bwrapCmd {};
-    } ''
+    env = runCommandLocal "${name}-shell-env" { shellHook = bwrapCmd { }; } ''
       echo >&2 ""
       echo >&2 "*** User chroot 'env' attributes are intended for interactive nix-shell sessions, not for building! ***"
       echo >&2 ""

pkgs/build-support/build-fhsenv-chroot/default.nix

@@ -1,27 +1,35 @@
 { lib, callPackage, runCommandLocal, writeScript, stdenv, coreutils }:
 
-let buildFHSEnv = callPackage ./env.nix { }; in
+let buildFHSEnv = callPackage ./env.nix { };
 
-args@{ name, version ? null, runScript ? "bash", extraInstallCommands ? "", meta ? {}, passthru ? {}, ... }:
+in args@{ name, version ? null, runScript ? "bash", extraInstallCommands ? ""
+, meta ? { }, passthru ? { }, ... }:
 
 let
-  env = buildFHSEnv (removeAttrs args [ "version" "runScript" "extraInstallCommands" "meta" "passthru" ]);
+  env = buildFHSEnv (removeAttrs args [
+    "version"
+    "runScript"
+    "extraInstallCommands"
+    "meta"
+    "passthru"
+  ]);
 
-  chrootenv = callPackage ./chrootenv {};
+  chrootenv = callPackage ./chrootenv { };
 
-  init = run: writeScript "${name}-init" ''
-    #! ${stdenv.shell}
-    for i in ${env}/* /host/*; do
-      path="/''${i##*/}"
-      [ -e "$path" ] || ${coreutils}/bin/ln -s "$i" "$path"
-    done
+  init = run:
+    writeScript "${name}-init" ''
+      #! ${stdenv.shell}
+      for i in ${env}/* /host/*; do
+        path="/''${i##*/}"
+        [ -e "$path" ] || ${coreutils}/bin/ln -s "$i" "$path"
+      done
 
-    [ -d "$1" ] && [ -r "$1" ] && cd "$1"
-    shift
+      [ -d "$1" ] && [ -r "$1" ] && cd "$1"
+      shift
 
-    source /etc/profile
-    exec ${run} "$@"
-  '';
+      source /etc/profile
+      exec ${run} "$@"
+    '';
 
   versionStr = lib.optionalString (version != null) ("-" + version);
 

pkgs/build-support/build-fhsenv-chroot/env.nix

@@ -1,13 +1,8 @@
 { stdenv, lib, buildEnv, writeText, pkgs, pkgsi686Linux }:
 
-{ name
-, profile ? ""
-, targetPkgs ? pkgs: []
-, multiPkgs ? pkgs: []
-, extraBuildCommands ? ""
-, extraBuildCommandsMulti ? ""
-, extraOutputsToInstall ? []
-}:
+{ name, profile ? "", targetPkgs ? pkgs: [ ], multiPkgs ? pkgs: [ ]
+, extraBuildCommands ? "", extraBuildCommandsMulti ? ""
+, extraOutputsToInstall ? [ ] }:
 
 # HOWTO:
 # All packages (most likely programs) returned from targetPkgs will only be
@@ -27,12 +22,14 @@
 let
   is64Bit = stdenv.hostPlatform.parsed.cpu.bits == 64;
   # multi-lib glibc is only supported on x86_64
-  isMultiBuild  = multiPkgs != null && stdenv.hostPlatform.system == "x86_64-linux";
+  isMultiBuild = multiPkgs != null && stdenv.hostPlatform.system
+    == "x86_64-linux";
   isTargetBuild = !isMultiBuild;
 
   # list of packages (usually programs) which are only be installed for the
   # host's architecture
-  targetPaths = targetPkgs pkgs ++ (if multiPkgs == null then [] else multiPkgs pkgs);
+  targetPaths = targetPkgs pkgs
+    ++ (if multiPkgs == null then [ ] else multiPkgs pkgs);
 
   # list of packages which are installed for both x86 and x86_64 on x86_64
   # systems
@@ -42,16 +39,26 @@ let
   # these match the host's architecture, glibc_multi is used for multilib
   # builds. glibcLocales must be before glibc or glibc_multi as otherwiese
   # the wrong LOCALE_ARCHIVE will be used where only C.UTF-8 is available.
-  basePkgs = with pkgs;
-    [ glibcLocales
-      (if isMultiBuild then glibc_multi else glibc)
-      (toString gcc.cc.lib) bashInteractiveFHS coreutils less shadow su
-      gawk diffutils findutils gnused gnugrep
-      gnutar gzip bzip2 xz
-    ];
-  baseMultiPkgs = with pkgsi686Linux;
-    [ (toString gcc.cc.lib)
-    ];
+  basePkgs = with pkgs; [
+    glibcLocales
+    (if isMultiBuild then glibc_multi else glibc)
+    (toString gcc.cc.lib)
+    bashInteractiveFHS
+    coreutils
+    less
+    shadow
+    su
+    gawk
+    diffutils
+    findutils
+    gnused
+    gnugrep
+    gnutar
+    gzip
+    bzip2
+    xz
+  ];
+  baseMultiPkgs = with pkgsi686Linux; [ (toString gcc.cc.lib) ];
 
   etcProfile = writeText "profile" ''
     export PS1='${name}-chrootenv:\u@\h:\w\$ '
@@ -91,7 +98,7 @@ let
 
   # Compose /etc for the chroot environment
   etcPkg = stdenv.mkDerivation {
-    name         = "${name}-chrootenv-etc";
+    name = "${name}-chrootenv-etc";
     buildCommand = ''
       mkdir -p $out/etc
       cd $out/etc
@@ -216,8 +223,8 @@ let
     ln -Ls ${staticUsrProfileTarget}/lib/32/ld-linux.so.2 lib/
   '';
 
-  setupLibDirs = if isTargetBuild then setupLibDirs_target
-                                  else setupLibDirs_multi;
+  setupLibDirs =
+    if isTargetBuild then setupLibDirs_target else setupLibDirs_multi;
 
   # the target profile is the actual profile that will be used for the chroot
   setupTargetProfile = ''
@@ -244,7 +251,7 @@ let
   '';
 
 in stdenv.mkDerivation {
-  name         = "${name}-fhs";
+  name = "${name}-fhs";
   buildCommand = ''
     mkdir -p $out
     cd $out

pkgs/build-support/build-graalvm-native-image/default.nix

@@ -1,30 +1,21 @@
-{ lib
-, stdenv
-, glibcLocales
-  # The GraalVM derivation to use
-, graalvmDrv
-, removeReferencesTo
-, executable ? args.pname
+{ lib, stdenv, glibcLocales
+# The GraalVM derivation to use
+, graalvmDrv, removeReferencesTo, executable ? args.pname
   # JAR used as input for GraalVM derivation, defaults to src
-, jar ? args.src
-, dontUnpack ? (jar == args.src)
-  # Default native-image arguments. You probably don't want to set this,
-  # except in special cases. In most cases, use extraNativeBuildArgs instead
+, jar ? args.src, dontUnpack ? (jar == args.src)
+# Default native-image arguments. You probably don't want to set this,
+# except in special cases. In most cases, use extraNativeBuildArgs instead
 , nativeImageBuildArgs ? [
-    (lib.optionalString stdenv.isDarwin "-H:-CheckToolchain")
-    (lib.optionalString (stdenv.isLinux && stdenv.isAarch64) "-H:PageSize=64K")
-    "-H:Name=${executable}"
-    "-march=compatibility"
-    "--verbose"
-  ]
-  # Extra arguments to be passed to the native-image
+  (lib.optionalString stdenv.isDarwin "-H:-CheckToolchain")
+  (lib.optionalString (stdenv.isLinux && stdenv.isAarch64) "-H:PageSize=64K")
+  "-H:Name=${executable}"
+  "-march=compatibility"
+  "--verbose"
+]
+# Extra arguments to be passed to the native-image
 , extraNativeImageBuildArgs ? [ ]
   # XMX size of GraalVM during build
-, graalvmXmx ? "-J-Xmx6g"
-, meta ? { }
-, LC_ALL ? "en_US.UTF-8"
-, ...
-} @ args:
+, graalvmXmx ? "-J-Xmx6g", meta ? { }, LC_ALL ? "en_US.UTF-8", ... }@args:
 
 let
   extraArgs = builtins.removeAttrs args [
@@ -40,15 +31,16 @@ let
     "installPhase"
     "postInstall"
   ];
-in
-stdenv.mkDerivation ({
+in stdenv.mkDerivation ({
   inherit dontUnpack jar;
 
   env = { inherit LC_ALL; };
 
-  nativeBuildInputs = (args.nativeBuildInputs or [ ]) ++ [ graalvmDrv glibcLocales removeReferencesTo ];
+  nativeBuildInputs = (args.nativeBuildInputs or [ ])
+    ++ [ graalvmDrv glibcLocales removeReferencesTo ];
 
-  nativeImageBuildArgs = nativeImageBuildArgs ++ extraNativeImageBuildArgs ++ [ graalvmXmx ];
+  nativeImageBuildArgs = nativeImageBuildArgs ++ extraNativeImageBuildArgs
+    ++ [ graalvmXmx ];
 
   buildPhase = args.buildPhase or ''
     runHook preBuild

pkgs/build-support/buildenv/default.nix

@@ -8,74 +8,69 @@ let
     src = ./builder.pl;
     inherit (builtins) storeDir;
   };
-in
 
-lib.makeOverridable
-({ name
+in lib.makeOverridable ({ name
 
-, # The manifest file (if any).  A symlink $out/manifest will be
+  , # The manifest file (if any).  A symlink $out/manifest will be
   # created to it.
   manifest ? ""
 
-, # The paths to symlink.
+  , # The paths to symlink.
   paths
 
-, # Whether to ignore collisions or abort.
+  , # Whether to ignore collisions or abort.
   ignoreCollisions ? false
 
-, # If there is a collision, check whether the contents and permissions match
+  , # If there is a collision, check whether the contents and permissions match
   # and only if not, throw a collision error.
   checkCollisionContents ? true
 
-, # The paths (relative to each element of `paths') that we want to
+  , # The paths (relative to each element of `paths') that we want to
   # symlink (e.g., ["/bin"]).  Any file not inside any of the
   # directories in the list is not symlinked.
-  pathsToLink ? ["/"]
+  pathsToLink ? [ "/" ]
 
-, # The package outputs to include. By default, only the default
+  , # The package outputs to include. By default, only the default
   # output is included.
-  extraOutputsToInstall ? []
+  extraOutputsToInstall ? [ ]
 
-, # Root the result in directory "$out${extraPrefix}", e.g. "/share".
+  , # Root the result in directory "$out${extraPrefix}", e.g. "/share".
   extraPrefix ? ""
 
-, # Shell commands to run after building the symlink tree.
+  , # Shell commands to run after building the symlink tree.
   postBuild ? ""
 
-# Additional inputs
-, nativeBuildInputs ? [] # Handy e.g. if using makeWrapper in `postBuild`.
-, buildInputs ? []
+    # Additional inputs
+  , nativeBuildInputs ? [ ] # Handy e.g. if using makeWrapper in `postBuild`.
+  , buildInputs ? [ ]
 
-, passthru ? {}
-, meta ? {}
-}:
+  , passthru ? { }, meta ? { } }:
 
-runCommand name
-  rec {
-    inherit manifest ignoreCollisions checkCollisionContents passthru
-            meta pathsToLink extraPrefix postBuild
-            nativeBuildInputs buildInputs;
+  runCommand name rec {
+    inherit manifest ignoreCollisions checkCollisionContents passthru meta
+      pathsToLink extraPrefix postBuild nativeBuildInputs buildInputs;
     pkgs = builtins.toJSON (map (drv: {
       paths =
         # First add the usual output(s): respect if user has chosen explicitly,
         # and otherwise use `meta.outputsToInstall`. The attribute is guaranteed
         # to exist in mkDerivation-created cases. The other cases (e.g. runCommand)
         # aren't expected to have multiple outputs.
-        (if (! drv ? outputSpecified || ! drv.outputSpecified)
-            && drv.meta.outputsToInstall or null != null
-          then map (outName: drv.${outName}) drv.meta.outputsToInstall
-          else [ drv ])
+        (if (!drv ? outputSpecified || !drv.outputSpecified)
+        && drv.meta.outputsToInstall or null != null then
+          map (outName: drv.${outName}) drv.meta.outputsToInstall
+        else
+          [ drv ])
         # Add any extra outputs specified by the caller of `buildEnv`.
-        ++ lib.filter (p: p!=null)
-          (builtins.map (outName: drv.${outName} or null) extraOutputsToInstall);
+        ++ lib.filter (p: p != null)
+        (builtins.map (outName: drv.${outName} or null) extraOutputsToInstall);
       priority = drv.meta.priority or 5;
     }) paths);
     preferLocalBuild = true;
     allowSubstitutes = false;
     # XXX: The size is somewhat arbitrary
-    passAsFile = if builtins.stringLength pkgs >= 128*1024 then [ "pkgs" ] else [ ];
-  }
-  ''
+    passAsFile =
+      if builtins.stringLength pkgs >= 128 * 1024 then [ "pkgs" ] else [ ];
+  } ''
     ${buildPackages.perl}/bin/perl -w ${builder}
     eval "$postBuild"
   '')

pkgs/build-support/cc-wrapper/default.nix

@@ -5,56 +5,54 @@
 # script that sets up the right environment variables so that the
 # compiler and the linker just "work".
 
-{ name ? ""
-, lib
-, stdenvNoCC
-, runtimeShell
-, cc ? null, libc ? null, bintools, coreutils ? null
-, zlib ? null
-, nativeTools, noLibc ? false, nativeLibc, nativePrefix ? ""
-, propagateDoc ? cc != null && cc ? man
-, extraTools ? [], extraPackages ? [], extraBuildCommands ? ""
-, nixSupport ? {}
-, isGNU ? false, isClang ? cc.isClang or false, isCcache ? cc.isCcache or false, gnugrep ? null
-, expand-response-params
-, libcxx ? null
+{ name ? "", lib, stdenvNoCC, runtimeShell, cc ? null, libc ? null, bintools
+, coreutils ? null, zlib ? null, nativeTools, noLibc ? false, nativeLibc
+, nativePrefix ? "", propagateDoc ? cc != null && cc ? man, extraTools ? [ ]
+, extraPackages ? [ ], extraBuildCommands ? "", nixSupport ? { }, isGNU ? false
+, isClang ? cc.isClang or false, isCcache ? cc.isCcache or false, gnugrep ? null
+, expand-response-params, libcxx ? null
 
-# Whether or not to add `-B` and `-L` to `nix-support/cc-{c,ld}flags`
+  # Whether or not to add `-B` and `-L` to `nix-support/cc-{c,ld}flags`
 , useCcForLibs ?
 
-  # Always add these flags for Clang, because in order to compile (most
-  # software) it needs libraries that are shipped and compiled with gcc.
-  if isClang then true
+# Always add these flags for Clang, because in order to compile (most
+# software) it needs libraries that are shipped and compiled with gcc.
+  if isClang then
+    true
 
-  # Never add these flags for a build!=host cross-compiler or a host!=target
-  # ("cross-built-native") compiler; currently nixpkgs has a special build
-  # path for these (`crossStageStatic`).  Hopefully at some point that build
-  # path will be merged with this one and this conditional will be removed.
-  else if (with stdenvNoCC; buildPlatform != hostPlatform || hostPlatform != targetPlatform) then false
+    # Never add these flags for a build!=host cross-compiler or a host!=target
+    # ("cross-built-native") compiler; currently nixpkgs has a special build
+    # path for these (`crossStageStatic`).  Hopefully at some point that build
+    # path will be merged with this one and this conditional will be removed.
+  else if (with stdenvNoCC;
+    buildPlatform != hostPlatform || hostPlatform != targetPlatform) then
+    false
 
-  # Never add these flags when wrapping the bootstrapFiles' compiler; it has a
-  # /usr/-like layout with everything smashed into a single outpath, so it has
-  # no trouble finding its own libraries.
-  else if (cc.passthru.isFromBootstrapFiles or false) then false
+    # Never add these flags when wrapping the bootstrapFiles' compiler; it has a
+    # /usr/-like layout with everything smashed into a single outpath, so it has
+    # no trouble finding its own libraries.
+  else if (cc.passthru.isFromBootstrapFiles or false) then
+    false
 
-  # Add these flags when wrapping `xgcc` (the first compiler that nixpkgs builds)
-  else if (cc.passthru.isXgcc or false) then true
+    # Add these flags when wrapping `xgcc` (the first compiler that nixpkgs builds)
+  else if (cc.passthru.isXgcc or false) then
+    true
 
-  # Add these flags when wrapping `stdenv.cc`
-  else if (cc.stdenv.cc.cc.passthru.isXgcc or false) then true
+    # Add these flags when wrapping `stdenv.cc`
+  else if (cc.stdenv.cc.cc.passthru.isXgcc or false) then
+    true
 
-  # Do not add these flags in any other situation.  This is `false` mainly to
-  # prevent these flags from being added when wrapping *old* versions of gcc
-  # (e.g. `gcc6Stdenv`), since they will cause the old gcc to get `-B` and
-  # `-L` flags pointing at the new gcc's libstdc++ headers.  Example failure:
-  # https://hydra.nixos.org/build/213125495
-  else false
+    # Do not add these flags in any other situation.  This is `false` mainly to
+    # prevent these flags from being added when wrapping *old* versions of gcc
+    # (e.g. `gcc6Stdenv`), since they will cause the old gcc to get `-B` and
+    # `-L` flags pointing at the new gcc's libstdc++ headers.  Example failure:
+    # https://hydra.nixos.org/build/213125495
+  else
+    false
 
-# the derivation at which the `-B` and `-L` flags added by `useCcForLibs` will point
-, gccForLibs ? if useCcForLibs then cc else null
-, fortify-headers ? null
-, includeFortifyHeaders ? null
-}:
+    # the derivation at which the `-B` and `-L` flags added by `useCcForLibs` will point
+, gccForLibs ? if useCcForLibs then cc else null, fortify-headers ? null
+, includeFortifyHeaders ? null }:
 
 assert nativeTools -> !propagateDoc && nativePrefix != "";
 assert !nativeTools -> cc != null && coreutils != null && gnugrep != null;
@@ -63,36 +61,22 @@ assert (noLibc || nativeLibc) == (libc == null);
 
 let
   inherit (lib)
-    attrByPath
-    concatMapStrings
-    concatStringsSep
-    escapeShellArg
-    getBin
-    getDev
-    getLib
-    getName
-    getVersion
-    mapAttrsToList
-    optional
-    optionalAttrs
-    optionals
-    optionalString
-    removePrefix
-    replaceStrings
-    toList
-    versionAtLeast
-    ;
+    attrByPath concatMapStrings concatStringsSep escapeShellArg getBin getDev
+    getLib getName getVersion mapAttrsToList optional optionalAttrs optionals
+    optionalString removePrefix replaceStrings toList versionAtLeast;
 
   inherit (stdenvNoCC) hostPlatform targetPlatform;
 
-  includeFortifyHeaders' = if includeFortifyHeaders != null
-    then includeFortifyHeaders
-    else (targetPlatform.libc == "musl" && isGNU);
+  includeFortifyHeaders' = if includeFortifyHeaders != null then
+    includeFortifyHeaders
+  else
+    (targetPlatform.libc == "musl" && isGNU);
 
   # Prefix for binaries. Customarily ends with a dash separator.
   #
   # TODO(@Ericson2314) Make unconditional, or optional but always true by default.
-  targetPrefix = optionalString (targetPlatform != hostPlatform) (targetPlatform.config + "-");
+  targetPrefix = optionalString (targetPlatform != hostPlatform)
+    (targetPlatform.config + "-");
 
   ccVersion = getVersion cc;
   ccName = removePrefix targetPrefix (getName cc);
@@ -100,8 +84,8 @@ let
   libc_bin = optionalString (libc != null) (getBin libc);
   libc_dev = optionalString (libc != null) (getDev libc);
   libc_lib = optionalString (libc != null) (getLib libc);
-  cc_solib = getLib cc
-    + optionalString (targetPlatform != hostPlatform) "/${targetPlatform.config}";
+  cc_solib = getLib cc + optionalString (targetPlatform != hostPlatform)
+    "/${targetPlatform.config}";
 
   # The wrapper scripts use 'cat' and 'grep', so we may need coreutils.
   coreutils_bin = optionalString (!nativeTools) (getBin coreutils);
@@ -111,17 +95,15 @@ let
   # without interfering. For the moment, it is defined as the target triple,
   # adjusted to be a valid bash identifier. This should be considered an
   # unstable implementation detail, however.
-  suffixSalt = replaceStrings ["-" "."] ["_" "_"] targetPlatform.config;
+  suffixSalt = replaceStrings [ "-" "." ] [ "_" "_" ] targetPlatform.config;
 
-  useGccForLibs = useCcForLibs
-    && libcxx == null
-    && !targetPlatform.isDarwin
+  useGccForLibs = useCcForLibs && libcxx == null && !targetPlatform.isDarwin
     && !(targetPlatform.useLLVM or false)
     && !(targetPlatform.useAndroidPrebuilt or false)
-    && !(targetPlatform.isiOS or false)
-    && gccForLibs != null;
+    && !(targetPlatform.isiOS or false) && gccForLibs != null;
   gccForLibs_solib = getLib gccForLibs
-    + optionalString (targetPlatform != hostPlatform) "/${targetPlatform.config}";
+    + optionalString (targetPlatform != hostPlatform)
+    "/${targetPlatform.config}";
 
   # Analogously to cc_solib and gccForLibs_solib
   libcxx_solib = "${getLib libcxx}/lib";
@@ -141,7 +123,9 @@ let
   #   -march=too-modern-cpu
 
   isGccArchSupported = arch:
-    if targetPlatform.isPower then false else # powerpc does not allow -march=
+    if targetPlatform.isPower then
+      false
+    else # powerpc does not allow -march=
     if isGNU then
       { # Generic
         x86-64-v2 = versionAtLeast ccVersion "11.0";
@@ -149,41 +133,41 @@ let
         x86-64-v4 = versionAtLeast ccVersion "11.0";
 
         # Intel
-        skylake        = versionAtLeast ccVersion "6.0";
+        skylake = versionAtLeast ccVersion "6.0";
         skylake-avx512 = versionAtLeast ccVersion "6.0";
-        cannonlake     = versionAtLeast ccVersion "8.0";
+        cannonlake = versionAtLeast ccVersion "8.0";
         icelake-client = versionAtLeast ccVersion "8.0";
         icelake-server = versionAtLeast ccVersion "8.0";
-        cascadelake    = versionAtLeast ccVersion "9.0";
-        cooperlake     = versionAtLeast ccVersion "10.0";
-        tigerlake      = versionAtLeast ccVersion "10.0";
-        knm            = versionAtLeast ccVersion "8.0";
-        alderlake      = versionAtLeast ccVersion "12.0";
+        cascadelake = versionAtLeast ccVersion "9.0";
+        cooperlake = versionAtLeast ccVersion "10.0";
+        tigerlake = versionAtLeast ccVersion "10.0";
+        knm = versionAtLeast ccVersion "8.0";
+        alderlake = versionAtLeast ccVersion "12.0";
 
         # AMD
-        znver1         = versionAtLeast ccVersion "6.0";
-        znver2         = versionAtLeast ccVersion "9.0";
-        znver3         = versionAtLeast ccVersion "11.0";
-        znver4         = versionAtLeast ccVersion "13.0";
+        znver1 = versionAtLeast ccVersion "6.0";
+        znver2 = versionAtLeast ccVersion "9.0";
+        znver3 = versionAtLeast ccVersion "11.0";
+        znver4 = versionAtLeast ccVersion "13.0";
       }.${arch} or true
     else if isClang then
-      { #Generic
+      { # Generic
         x86-64-v2 = versionAtLeast ccVersion "12.0";
         x86-64-v3 = versionAtLeast ccVersion "12.0";
         x86-64-v4 = versionAtLeast ccVersion "12.0";
 
         # Intel
-        cannonlake     = versionAtLeast ccVersion "5.0";
+        cannonlake = versionAtLeast ccVersion "5.0";
         icelake-client = versionAtLeast ccVersion "7.0";
         icelake-server = versionAtLeast ccVersion "7.0";
-        knm            = versionAtLeast ccVersion "7.0";
-        alderlake      = versionAtLeast ccVersion "16.0";
+        knm = versionAtLeast ccVersion "7.0";
+        alderlake = versionAtLeast ccVersion "16.0";
 
         # AMD
-        znver1         = versionAtLeast ccVersion "4.0";
-        znver2         = versionAtLeast ccVersion "9.0";
-        znver3         = versionAtLeast ccVersion "12.0";
-        znver4         = versionAtLeast ccVersion "16.0";
+        znver1 = versionAtLeast ccVersion "4.0";
+        znver2 = versionAtLeast ccVersion "9.0";
+        znver3 = versionAtLeast ccVersion "12.0";
+        znver4 = versionAtLeast ccVersion "16.0";
       }.${arch} or true
     else
       false;
@@ -195,24 +179,25 @@ let
         generic = true;
         intel = true;
       }.${tune} or (isGccArchSupported tune)
-    # on arm64, the -mtune= values are specific processors
+      # on arm64, the -mtune= values are specific processors
     else if targetPlatform.isAarch64 then
       (if isGNU then
         {
-          cortex-a53              = versionAtLeast ccVersion "4.8";  # gcc 8c075f
-          cortex-a72              = versionAtLeast ccVersion "5.1";  # gcc d8f70d
-          "cortex-a72.cortex-a53" = versionAtLeast ccVersion "5.1";  # gcc d8f70d
+          cortex-a53 = versionAtLeast ccVersion "4.8"; # gcc 8c075f
+          cortex-a72 = versionAtLeast ccVersion "5.1"; # gcc d8f70d
+          "cortex-a72.cortex-a53" = versionAtLeast ccVersion "5.1"; # gcc d8f70d
         }.${tune} or false
-       else if isClang then
-         {
-           cortex-a53             = versionAtLeast ccVersion "3.9"; # llvm dfc5d1
-         }.${tune} or false
-       else false)
+      else if isClang then
+        {
+          cortex-a53 = versionAtLeast ccVersion "3.9"; # llvm dfc5d1
+        }.${tune} or false
+      else
+        false)
     else if targetPlatform.isPower then
-      # powerpc does not support -march
+    # powerpc does not support -march
       true
     else if targetPlatform.isMips then
-      # for mips -mtune= takes the same values as -march
+    # for mips -mtune= takes the same values as -march
       isGccArchSupported tune
     else
       false;
@@ -224,41 +209,42 @@ let
   # Note: this function can make use of ccVersion; for example, `if
   # versionOlder ccVersion "12" then ...`
   findBestTuneApproximation = tune:
-    let guess = if isClang
-                then {
-                  # clang does not tune for big.LITTLE chips
-                  "cortex-a72.cortex-a53" = "cortex-a72";
-                }.${tune} or tune
-                else tune;
-    in if isGccTuneSupported guess
-       then guess
-       else null;
+    let
+      guess = if isClang then
+        {
+          # clang does not tune for big.LITTLE chips
+          "cortex-a72.cortex-a53" = "cortex-a72";
+        }.${tune} or tune
+      else
+        tune;
+    in if isGccTuneSupported guess then guess else null;
 
-  defaultHardeningFlags = bintools.defaultHardeningFlags or [];
+  defaultHardeningFlags = bintools.defaultHardeningFlags or [ ];
 
   # if cc.hardeningUnsupportedFlagsByTargetPlatform exists, this is
   # called with the targetPlatform as an argument and
   # cc.hardeningUnsupportedFlags is completely ignored - the function
   # is responsible for including the constant hardeningUnsupportedFlags
   # list however it sees fit.
-  ccHardeningUnsupportedFlags = if cc ? hardeningUnsupportedFlagsByTargetPlatform
-    then cc.hardeningUnsupportedFlagsByTargetPlatform targetPlatform
-    else (cc.hardeningUnsupportedFlags or []);
+  ccHardeningUnsupportedFlags =
+    if cc ? hardeningUnsupportedFlagsByTargetPlatform then
+      cc.hardeningUnsupportedFlagsByTargetPlatform targetPlatform
+    else
+      (cc.hardeningUnsupportedFlags or [ ]);
 
-  darwinPlatformForCC = optionalString targetPlatform.isDarwin (
-    if (targetPlatform.darwinPlatform == "macos" && isGNU) then "macosx"
-    else targetPlatform.darwinPlatform
-  );
+  darwinPlatformForCC = optionalString targetPlatform.isDarwin
+    (if (targetPlatform.darwinPlatform == "macos" && isGNU) then
+      "macosx"
+    else
+      targetPlatform.darwinPlatform);
 
-  darwinMinVersion = optionalString targetPlatform.isDarwin (
-    targetPlatform.darwinMinVersion
-  );
+  darwinMinVersion =
+    optionalString targetPlatform.isDarwin (targetPlatform.darwinMinVersion);
 
   darwinMinVersionVariable = optionalString targetPlatform.isDarwin
     targetPlatform.darwinMinVersionVariable;
-in
 
-assert includeFortifyHeaders' -> fortify-headers != null;
+in assert includeFortifyHeaders' -> fortify-headers != null;
 
 # Ensure bintools matches
 assert libc_bin == bintools.libc_bin;
@@ -269,8 +255,7 @@ assert nativeLibc == bintools.nativeLibc;
 assert nativePrefix == bintools.nativePrefix;
 
 stdenvNoCC.mkDerivation {
-  pname = targetPrefix
-    + (if name != "" then name else "${ccName}-wrapper");
+  pname = targetPrefix + (if name != "" then name else "${ccName}-wrapper");
   version = optionalString (cc != null) ccVersion;
 
   preferLocalBuild = true;
@@ -292,7 +277,7 @@ stdenvNoCC.mkDerivation {
         (lambda (arg)
           (when (file-directory-p (concat arg "/include"))
             (setenv "NIX_CFLAGS_COMPILE_${suffixSalt}" (concat (getenv "NIX_CFLAGS_COMPILE_${suffixSalt}") " -isystem " arg "/include"))))
-        '(${concatStringsSep " " (map (pkg: "\"${pkg}\"") pkgs)}))
+        '(${concatStringsSep " " (map (pkg: ''"${pkg}"'') pkgs)}))
     '';
 
     # Expose expand-response-params we are /actually/ using. In stdenv
@@ -315,22 +300,25 @@ stdenvNoCC.mkDerivation {
 
   wrapper = ./cc-wrapper.sh;
 
-  installPhase =
-    ''
-      mkdir -p $out/bin $out/nix-support
+  installPhase = ''
+    mkdir -p $out/bin $out/nix-support
 
-      wrap() {
-        local dst="$1"
-        local wrapper="$2"
-        export prog="$3"
-        export use_response_file_by_default=${if isClang && !isCcache then "1" else "0"}
-        substituteAll "$wrapper" "$out/bin/$dst"
-        chmod +x "$out/bin/$dst"
+    wrap() {
+      local dst="$1"
+      local wrapper="$2"
+      export prog="$3"
+      export use_response_file_by_default=${
+        if isClang && !isCcache then "1" else "0"
       }
-    ''
+      substituteAll "$wrapper" "$out/bin/$dst"
+      chmod +x "$out/bin/$dst"
+    }
+  ''
 
     + (if nativeTools then ''
-      echo ${if targetPlatform.isDarwin then cc else nativePrefix} > $out/nix-support/orig-cc
+      echo ${
+        if targetPlatform.isDarwin then cc else nativePrefix
+      } > $out/nix-support/orig-cc
 
       ccPath="${if targetPlatform.isDarwin then cc else nativePrefix}/bin"
     '' else ''
@@ -384,7 +372,9 @@ stdenvNoCC.mkDerivation {
     # No need to wrap gnat, gnatkr, gnatname or gnatprep; we can just symlink them in
     + optionalString cc.langAda or false ''
       for cmd in gnatbind gnatchop gnatclean gnatlink gnatls gnatmake; do
-        wrap ${targetPrefix}$cmd ${./gnat-wrapper.sh} $ccPath/${targetPrefix}$cmd
+        wrap ${targetPrefix}$cmd ${
+          ./gnat-wrapper.sh
+        } $ccPath/${targetPrefix}$cmd
       done
 
       for cmd in gnat gnatkr gnatname gnatprep; do
@@ -418,12 +408,13 @@ stdenvNoCC.mkDerivation {
     '';
 
   strictDeps = true;
-  propagatedBuildInputs = [ bintools ] ++ extraTools ++ optionals cc.langD or cc.langJava or false [ zlib ];
-  depsTargetTargetPropagated = optional (libcxx != null) libcxx ++ extraPackages;
+  propagatedBuildInputs = [ bintools ] ++ extraTools
+    ++ optionals cc.langD or cc.langJava or false [ zlib ];
+  depsTargetTargetPropagated = optional (libcxx != null) libcxx
+    ++ extraPackages;
 
-  setupHooks = [
-    ../setup-hooks/role.bash
-  ] ++ optional (cc.langC or true) ./setup-hook.sh
+  setupHooks = [ ../setup-hooks/role.bash ]
+    ++ optional (cc.langC or true) ./setup-hook.sh
     ++ optional (cc.langFortran or false) ./fortran-hook.sh
     ++ optional (targetPlatform.isWindows) (stdenvNoCC.mkDerivation {
       name = "win-dll-hook.sh";
@@ -463,8 +454,7 @@ stdenvNoCC.mkDerivation {
     + optionalString (useGccForLibs && isClang) ''
 
       echo "-B${gccForLibs}/lib/gcc/${targetPlatform.config}/${gccForLibs.version}" >> $out/nix-support/cc-cflags
-    ''
-    + optionalString useGccForLibs ''
+    '' + optionalString useGccForLibs ''
       echo "-L${gccForLibs}/lib/gcc/${targetPlatform.config}/${gccForLibs.version}" >> $out/nix-support/cc-ldflags
       echo "-L${gccForLibs_solib}/lib" >> $out/nix-support/cc-ldflags
     ''
@@ -476,45 +466,50 @@ stdenvNoCC.mkDerivation {
     # vs libstdc++, etc.) since Darwin isn't `useLLVM` on all counts. (See
     # https://clang.llvm.org/docs/Toolchain.html for all the axes one might
     # break `useLLVM` into.)
-    + optionalString (isClang
-                      && targetPlatform.isLinux
-                      && !(targetPlatform.useAndroidPrebuilt or false)
-                      && !(targetPlatform.useLLVM or false)
-                      && gccForLibs != null) (''
-      echo "--gcc-toolchain=${gccForLibs}" >> $out/nix-support/cc-cflags
+    + optionalString (isClang && targetPlatform.isLinux
+      && !(targetPlatform.useAndroidPrebuilt or false)
+      && !(targetPlatform.useLLVM or false) && gccForLibs != null) (''
+        echo "--gcc-toolchain=${gccForLibs}" >> $out/nix-support/cc-cflags
 
-      # Pull in 'cc.out' target to get 'libstdc++fs.a'. It should be in
-      # 'cc.lib'. But it's a gcc package bug.
-      # TODO(trofi): remove once gcc is fixed to move libraries to .lib output.
-      echo "-L${gccForLibs}/${optionalString (targetPlatform != hostPlatform) "/${targetPlatform.config}"}/lib" >> $out/nix-support/cc-ldflags
-    ''
-    # this ensures that when clang passes -lgcc_s to lld (as it does
-    # when building e.g. firefox), lld is able to find libgcc_s.so
-    + concatMapStrings (libgcc: ''
-      echo "-L${libgcc}/lib" >> $out/nix-support/cc-ldflags
-    '') (toList (gccForLibs.libgcc or [])))
+        # Pull in 'cc.out' target to get 'libstdc++fs.a'. It should be in
+        # 'cc.lib'. But it's a gcc package bug.
+        # TODO(trofi): remove once gcc is fixed to move libraries to .lib output.
+        echo "-L${gccForLibs}/${
+          optionalString (targetPlatform != hostPlatform)
+          "/${targetPlatform.config}"
+        }/lib" >> $out/nix-support/cc-ldflags
+      ''
+        # this ensures that when clang passes -lgcc_s to lld (as it does
+        # when building e.g. firefox), lld is able to find libgcc_s.so
+        + concatMapStrings (libgcc: ''
+          echo "-L${libgcc}/lib" >> $out/nix-support/cc-ldflags
+        '') (toList (gccForLibs.libgcc or [ ])))
 
-    ##
-    ## General libc support
-    ##
+      ##
+      ## General libc support
+      ##
 
-    # The "-B${libc_lib}/lib/" flag is a quick hack to force gcc to link
-    # against the crt1.o from our own glibc, rather than the one in
-    # /usr/lib.  (This is only an issue when using an `impure'
-    # compiler/linker, i.e., one that searches /usr/lib and so on.)
-    #
-    # Unfortunately, setting -B appears to override the default search
-    # path. Thus, the gcc-specific "../includes-fixed" directory is
-    # now longer searched and glibc's <limits.h> header fails to
-    # compile, because it uses "#include_next <limits.h>" to find the
-    # limits.h file in ../includes-fixed. To remedy the problem,
-    # another -idirafter is necessary to add that directory again.
+      # The "-B${libc_lib}/lib/" flag is a quick hack to force gcc to link
+      # against the crt1.o from our own glibc, rather than the one in
+      # /usr/lib.  (This is only an issue when using an `impure'
+      # compiler/linker, i.e., one that searches /usr/lib and so on.)
+      #
+      # Unfortunately, setting -B appears to override the default search
+      # path. Thus, the gcc-specific "../includes-fixed" directory is
+      # now longer searched and glibc's <limits.h> header fails to
+      # compile, because it uses "#include_next <limits.h>" to find the
+      # limits.h file in ../includes-fixed. To remedy the problem,
+      # another -idirafter is necessary to add that directory again.
     + optionalString (libc != null) (''
       touch "$out/nix-support/libc-cflags"
       touch "$out/nix-support/libc-ldflags"
-      echo "-B${libc_lib}${libc.libdir or "/lib/"}" >> $out/nix-support/libc-crt1-cflags
+      echo "-B${libc_lib}${
+        libc.libdir or "/lib/"
+      }" >> $out/nix-support/libc-crt1-cflags
     '' + optionalString (!(cc.langD or false)) ''
-      echo "-idirafter ${libc_dev}${libc.incdir or "/include"}" >> $out/nix-support/libc-cflags
+      echo "-idirafter ${libc_dev}${
+        libc.incdir or "/include"
+      }" >> $out/nix-support/libc-cflags
     '' + optionalString (isGNU && (!(cc.langD or false))) ''
       for dir in "${cc}"/lib/gcc/*/*/include-fixed; do
         echo '-idirafter' ''${dir} >> $out/nix-support/libc-cflags
@@ -524,16 +519,16 @@ stdenvNoCC.mkDerivation {
       echo "${libc_lib}" > $out/nix-support/orig-libc
       echo "${libc_dev}" > $out/nix-support/orig-libc-dev
     ''
-    # fortify-headers is a set of wrapper headers that augment libc
-    # and use #include_next to pass through to libc's true
-    # implementations, so must appear before them in search order.
-    # in theory a correctly placed -idirafter could be used, but in
-    # practice the compiler may have been built with a --with-headers
-    # like option that forces the libc headers before all -idirafter,
-    # hence -isystem here.
-    + optionalString includeFortifyHeaders' ''
-      echo "-isystem ${fortify-headers}/include" >> $out/nix-support/libc-cflags
-    '')
+      # fortify-headers is a set of wrapper headers that augment libc
+      # and use #include_next to pass through to libc's true
+      # implementations, so must appear before them in search order.
+      # in theory a correctly placed -idirafter could be used, but in
+      # practice the compiler may have been built with a --with-headers
+      # like option that forces the libc headers before all -idirafter,
+      # hence -isystem here.
+      + optionalString includeFortifyHeaders' ''
+        echo "-isystem ${fortify-headers}/include" >> $out/nix-support/libc-cflags
+      '')
 
     ##
     ## General libc++ support
@@ -541,26 +536,30 @@ stdenvNoCC.mkDerivation {
 
     # We have a libc++ directly, we have one via "smuggled" GCC, or we have one
     # bundled with the C compiler because it is GCC
-    + optionalString (libcxx != null || (useGccForLibs && gccForLibs.langCC or false) || (isGNU && cc.langCC or false)) ''
-      touch "$out/nix-support/libcxx-cxxflags"
-      touch "$out/nix-support/libcxx-ldflags"
-    ''
+    + optionalString (libcxx != null
+      || (useGccForLibs && gccForLibs.langCC or false)
+      || (isGNU && cc.langCC or false)) ''
+        touch "$out/nix-support/libcxx-cxxflags"
+        touch "$out/nix-support/libcxx-ldflags"
+      ''
     # Adding -isystem flags should be done only for clang; gcc
     # already knows how to find its own libstdc++, and adding
     # additional -isystem flags will confuse gfortran (see
     # https://github.com/NixOS/nixpkgs/pull/209870#issuecomment-1500550903)
-    + optionalString (libcxx == null && isClang && (useGccForLibs && gccForLibs.langCC or false)) ''
-      for dir in ${gccForLibs}/include/c++/*; do
-        echo "-isystem $dir" >> $out/nix-support/libcxx-cxxflags
-      done
-      for dir in ${gccForLibs}/include/c++/*/${targetPlatform.config}; do
-        echo "-isystem $dir" >> $out/nix-support/libcxx-cxxflags
-      done
-    ''
-    + optionalString (libcxx.isLLVM or false) ''
-      echo "-isystem ${getDev libcxx}/include/c++/v1" >> $out/nix-support/libcxx-cxxflags
-      echo "-stdlib=libc++" >> $out/nix-support/libcxx-ldflags
-    ''
+    + optionalString (libcxx == null && isClang
+      && (useGccForLibs && gccForLibs.langCC or false)) ''
+        for dir in ${gccForLibs}/include/c++/*; do
+          echo "-isystem $dir" >> $out/nix-support/libcxx-cxxflags
+        done
+        for dir in ${gccForLibs}/include/c++/*/${targetPlatform.config}; do
+          echo "-isystem $dir" >> $out/nix-support/libcxx-cxxflags
+        done
+      '' + optionalString (libcxx.isLLVM or false) ''
+        echo "-isystem ${
+          getDev libcxx
+        }/include/c++/v1" >> $out/nix-support/libcxx-cxxflags
+        echo "-stdlib=libc++" >> $out/nix-support/libcxx-ldflags
+      ''
 
     ##
     ## Initial CFLAGS
@@ -589,7 +588,8 @@ stdenvNoCC.mkDerivation {
     '' + ''
       echo "$ccLDFlags" >> $out/nix-support/cc-ldflags
       echo "$ccCFlags" >> $out/nix-support/cc-cflags
-    '' + optionalString (targetPlatform.isDarwin && (libcxx != null) && (cc.isClang or false)) ''
+    '' + optionalString
+    (targetPlatform.isDarwin && (libcxx != null) && (cc.isClang or false)) ''
       echo " -L${libcxx_solib}" >> $out/nix-support/cc-ldflags
     ''
 
@@ -607,7 +607,9 @@ stdenvNoCC.mkDerivation {
     ## Hardening support
     ##
     + ''
-      export hardening_unsupported_flags="${concatStringsSep " " ccHardeningUnsupportedFlags}"
+      export hardening_unsupported_flags="${
+        concatStringsSep " " ccHardeningUnsupportedFlags
+      }"
     ''
 
     # Machine flags. These are necessary to support
@@ -622,38 +624,40 @@ stdenvNoCC.mkDerivation {
     # For clang, this is handled in add-clang-cc-cflags-before.sh
 
     # TODO: aarch64-darwin has mcpu incompatible with gcc
-    + optionalString ((targetPlatform ? gcc.arch) && !isClang && !(targetPlatform.isDarwin && targetPlatform.isAarch64) &&
-                      isGccArchSupported targetPlatform.gcc.arch) ''
-      echo "-march=${targetPlatform.gcc.arch}" >> $out/nix-support/cc-cflags-before
-    ''
+    + optionalString ((targetPlatform ? gcc.arch) && !isClang
+      && !(targetPlatform.isDarwin && targetPlatform.isAarch64)
+      && isGccArchSupported targetPlatform.gcc.arch) ''
+        echo "-march=${targetPlatform.gcc.arch}" >> $out/nix-support/cc-cflags-before
+      ''
 
     # -mcpu is not very useful, except on PowerPC where it is used
     # instead of march. On all other platforms you should use mtune
     # and march instead.
     # TODO: aarch64-darwin has mcpu incompatible with gcc
-    + optionalString ((targetPlatform ? gcc.cpu) && (isClang || !(targetPlatform.isDarwin && targetPlatform.isAarch64))) ''
-      echo "-mcpu=${targetPlatform.gcc.cpu}" >> $out/nix-support/cc-cflags-before
-    ''
+    + optionalString ((targetPlatform ? gcc.cpu)
+      && (isClang || !(targetPlatform.isDarwin && targetPlatform.isAarch64))) ''
+        echo "-mcpu=${targetPlatform.gcc.cpu}" >> $out/nix-support/cc-cflags-before
+      ''
 
     # -mfloat-abi only matters on arm32 but we set it here
     # unconditionally just in case. If the abi specifically sets hard
     # vs. soft floats we use it here.
     + optionalString (targetPlatform ? gcc.float-abi) ''
       echo "-mfloat-abi=${targetPlatform.gcc.float-abi}" >> $out/nix-support/cc-cflags-before
-    ''
-    + optionalString (targetPlatform ? gcc.fpu) ''
+    '' + optionalString (targetPlatform ? gcc.fpu) ''
       echo "-mfpu=${targetPlatform.gcc.fpu}" >> $out/nix-support/cc-cflags-before
-    ''
-    + optionalString (targetPlatform ? gcc.mode) ''
+    '' + optionalString (targetPlatform ? gcc.mode) ''
       echo "-mmode=${targetPlatform.gcc.mode}" >> $out/nix-support/cc-cflags-before
-    ''
-    + optionalString (targetPlatform ? gcc.thumb) ''
-      echo "-m${if targetPlatform.gcc.thumb then "thumb" else "arm"}" >> $out/nix-support/cc-cflags-before
-    ''
-    + (let tune = if targetPlatform ? gcc.tune
-                  then findBestTuneApproximation targetPlatform.gcc.tune
-                  else null;
-      in optionalString (tune != null) ''
+    '' + optionalString (targetPlatform ? gcc.thumb) ''
+      echo "-m${
+        if targetPlatform.gcc.thumb then "thumb" else "arm"
+      }" >> $out/nix-support/cc-cflags-before
+    '' + (let
+      tune = if targetPlatform ? gcc.tune then
+        findBestTuneApproximation targetPlatform.gcc.tune
+      else
+        null;
+    in optionalString (tune != null) ''
       echo "-mtune=${tune}" >> $out/nix-support/cc-cflags-before
     '')
 
@@ -664,9 +668,11 @@ stdenvNoCC.mkDerivation {
       hardening_unsupported_flags+=" stackprotector fortify"
     '' + optionalString targetPlatform.isAvr ''
       hardening_unsupported_flags+=" stackprotector pic"
-    '' + optionalString (targetPlatform.libc == "newlib" || targetPlatform.libc == "newlib-nano") ''
+    '' + optionalString
+    (targetPlatform.libc == "newlib" || targetPlatform.libc == "newlib-nano") ''
       hardening_unsupported_flags+=" stackprotector fortify pie pic"
-    '' + optionalString (targetPlatform.libc == "musl" && targetPlatform.isx86_32) ''
+    '' + optionalString
+    (targetPlatform.libc == "musl" && targetPlatform.isx86_32) ''
       hardening_unsupported_flags+=" stackprotector"
     '' + optionalString targetPlatform.isNetBSD ''
       hardening_unsupported_flags+=" stackprotector fortify"
@@ -684,12 +690,14 @@ stdenvNoCC.mkDerivation {
 
     + optionalString (libc != null && targetPlatform.isAvr) ''
       for isa in avr5 avr3 avr4 avr6 avr25 avr31 avr35 avr51 avrxmega2 avrxmega4 avrxmega5 avrxmega6 avrxmega7 tiny-stack; do
-        echo "-B${getLib libc}/avr/lib/$isa" >> $out/nix-support/libc-crt1-cflags
+        echo "-B${
+          getLib libc
+        }/avr/lib/$isa" >> $out/nix-support/libc-crt1-cflags
       done
     ''
 
     + optionalString targetPlatform.isDarwin ''
-        echo "-arch ${targetPlatform.darwinArch}" >> $out/nix-support/cc-cflags
+      echo "-arch ${targetPlatform.darwinArch}" >> $out/nix-support/cc-cflags
     ''
 
     + optionalString targetPlatform.isAndroid ''
@@ -709,7 +717,9 @@ stdenvNoCC.mkDerivation {
     ''
 
     + optionalString cc.langAda or false ''
-      substituteAll ${./add-gnat-extra-flags.sh} $out/nix-support/add-gnat-extra-flags.sh
+      substituteAll ${
+        ./add-gnat-extra-flags.sh
+      } $out/nix-support/add-gnat-extra-flags.sh
     ''
 
     ##
@@ -718,29 +728,30 @@ stdenvNoCC.mkDerivation {
     ##
     + optionalString isClang ''
       # Escape twice: once for this script, once for the one it gets substituted into.
-      export march=${escapeShellArg
-        (optionalString (targetPlatform ? gcc.arch)
-          (escapeShellArg "-march=${targetPlatform.gcc.arch}"))}
+      export march=${
+        escapeShellArg (optionalString (targetPlatform ? gcc.arch)
+          (escapeShellArg "-march=${targetPlatform.gcc.arch}"))
+      }
       export defaultTarget=${targetPlatform.config}
-      substituteAll ${./add-clang-cc-cflags-before.sh} $out/nix-support/add-local-cc-cflags-before.sh
+      substituteAll ${
+        ./add-clang-cc-cflags-before.sh
+      } $out/nix-support/add-local-cc-cflags-before.sh
     ''
 
     ##
     ## Extra custom steps
     ##
-    + extraBuildCommands
-    + concatStringsSep "; "
-      (mapAttrsToList
-        (name: value: "echo ${toString value} >> $out/nix-support/${name}")
-        nixSupport);
-
+    + extraBuildCommands + concatStringsSep "; " (mapAttrsToList
+      (name: value: "echo ${toString value} >> $out/nix-support/${name}")
+      nixSupport);
 
   env = {
     inherit isClang;
 
     # for substitution in utils.bash
     # TODO(@sternenseemann): invent something cleaner than passing in "" in case of absence
-    expandResponseParams = "${expand-response-params}/bin/expand-response-params";
+    expandResponseParams =
+      "${expand-response-params}/bin/expand-response-params";
     # TODO(@sternenseemann): rename env var via stdenv rebuild
     shell = getBin runtimeShell + runtimeShell.shellPath or "";
     gnugrep_bin = optionalString (!nativeTools) gnugrep;
@@ -754,11 +765,11 @@ stdenvNoCC.mkDerivation {
     default_hardening_flags_str = builtins.toString defaultHardeningFlags;
   };
 
-  meta =
-    let cc_ = optionalAttrs (cc != null) cc; in
-    (optionalAttrs (cc_ ? meta) (removeAttrs cc.meta ["priority"])) //
-    { description = attrByPath ["meta" "description"] "System C compiler" cc_ + " (wrapper script)";
-      priority = 10;
-      mainProgram = if name != "" then name else ccName;
+  meta = let cc_ = optionalAttrs (cc != null) cc;
+  in (optionalAttrs (cc_ ? meta) (removeAttrs cc.meta [ "priority" ])) // {
+    description = attrByPath [ "meta" "description" ] "System C compiler" cc_
+      + " (wrapper script)";
+    priority = 10;
+    mainProgram = if name != "" then name else ccName;
   };
 }

pkgs/build-support/checkpoint-build.nix

@@ -1,93 +1,87 @@
-{ lib
-, buildPackages
-}:
+{ lib, buildPackages }:
 
 let
   # rudimentary support for cross-compiling
   # see: https://github.com/NixOS/nixpkgs/pull/279487#discussion_r1444449726
-  inherit (buildPackages)
-    mktemp
-    rsync
-    ;
-in
+  inherit (buildPackages) mktemp rsync;
 
-rec {
-  /* Prepare a derivation for local builds.
-    *
-    * This function prepares checkpoint builds by storing
-    * the build output and the sources for cross checking.
-    * The build output can be used later to allow checkpoint builds
-    * by passing the derivation output to the `mkCheckpointBuild` function.
-    *
-    * To build a project with checkpoints, follow these steps:
-    * - run `prepareCheckpointBuild` on the desired derivation, e.g.
-    *     checkpointArtifacts = prepareCheckpointBuild virtualbox;
-    * - change something you want in the sources of the package,
-    *   e.g. using source override:
-    *     changedVBox = pkgs.virtuabox.overrideAttrs (old: {
-    *       src = path/to/vbox/sources;
-    *     };
-    * - use `mkCheckpointBuild changedVBox checkpointArtifacts`
-    * - enjoy shorter build times
-  */
-  prepareCheckpointBuild = drv: drv.overrideAttrs (old: {
-    outputs = [ "out" ];
-    name = drv.name + "-checkpointArtifacts";
-    # To determine differences between the state of the build directory
-    # from an earlier build and a later one we store the state of the build
-    # directory before build, but after patch phases.
-    # This way, the same derivation can be used multiple times and only changes are detected.
-    # Additionally, removed files are handled correctly in later builds.
-    preBuild = (old.preBuild or "") + ''
-      mkdir -p $out/sources
-      cp -r ./* $out/sources/
-    '';
+in rec {
+  # Prepare a derivation for local builds.
+  #
+  # This function prepares checkpoint builds by storing
+  # the build output and the sources for cross checking.
+  # The build output can be used later to allow checkpoint builds
+  # by passing the derivation output to the `mkCheckpointBuild` function.
+  #
+  # To build a project with checkpoints, follow these steps:
+  # - run `prepareCheckpointBuild` on the desired derivation, e.g.
+  #     checkpointArtifacts = prepareCheckpointBuild virtualbox;
+  # - change something you want in the sources of the package,
+  #   e.g. using source override:
+  #     changedVBox = pkgs.virtuabox.overrideAttrs (old: {
+  #       src = path/to/vbox/sources;
+  #     };
+  # - use `mkCheckpointBuild changedVBox checkpointArtifacts`
+  # - enjoy shorter build times
+  prepareCheckpointBuild = drv:
+    drv.overrideAttrs (old: {
+      outputs = [ "out" ];
+      name = drv.name + "-checkpointArtifacts";
+      # To determine differences between the state of the build directory
+      # from an earlier build and a later one we store the state of the build
+      # directory before build, but after patch phases.
+      # This way, the same derivation can be used multiple times and only changes are detected.
+      # Additionally, removed files are handled correctly in later builds.
+      preBuild = (old.preBuild or "") + ''
+        mkdir -p $out/sources
+        cp -r ./* $out/sources/
+      '';
 
-    # After the build, the build directory is copied again
-    # to get the output files.
-    # We copy the complete build folder, to take care of
-    # build tools that build in the source directory, instead of
-    # having a separate build directory such as the Linux kernel.
-    installPhase = ''
-      runHook preCheckpointInstall
-      mkdir -p $out/outputs
-      cp -r ./* $out/outputs/
-      runHook postCheckpointInstall
-      unset postPhases
-    '';
+      # After the build, the build directory is copied again
+      # to get the output files.
+      # We copy the complete build folder, to take care of
+      # build tools that build in the source directory, instead of
+      # having a separate build directory such as the Linux kernel.
+      installPhase = ''
+        runHook preCheckpointInstall
+        mkdir -p $out/outputs
+        cp -r ./* $out/outputs/
+        runHook postCheckpointInstall
+        unset postPhases
+      '';
 
-    dontFixup = true;
-    doInstallCheck = false;
-    doDist = false;
-  });
+      dontFixup = true;
+      doInstallCheck = false;
+      doDist = false;
+    });
 
-  /* Build a derivation based on the checkpoint output generated by
-    * the `prepareCheckpointBuild` function.
-    *
-    * Usage:
-    * let
-    *   checkpointArtifacts = prepareCheckpointBuild drv;
-    * in mkCheckpointBuild drv checkpointArtifacts
-  */
-  mkCheckpointBuild = drv: checkpointArtifacts: drv.overrideAttrs (old: {
-    # The actual checkpoint build phase.
-    # We compare the changed sources from a previous build with the current and create a patch.
-    # Afterwards we clean the build directory and copy the previous output files (including the sources).
-    # The source difference patch is then applied to get the latest changes again to allow short build times.
-    preBuild = (old.preBuild or "") + ''
-      set +e
-      sourceDifferencePatchFile=$(${mktemp}/bin/mktemp)
-      diff -ur ${checkpointArtifacts}/sources ./ > "$sourceDifferencePatchFile"
-      set -e
-      shopt -s dotglob
-      rm -r *
-      ${rsync}/bin/rsync \
-        --checksum --times --atimes --chown=$USER:$USER --chmod=+w \
-        -r ${checkpointArtifacts}/outputs/ .
-      patch -p 1 -i "$sourceDifferencePatchFile"
-      rm "$sourceDifferencePatchFile"
-    '';
-  });
+  # Build a derivation based on the checkpoint output generated by
+  # the `prepareCheckpointBuild` function.
+  #
+  # Usage:
+  # let
+  #   checkpointArtifacts = prepareCheckpointBuild drv;
+  # in mkCheckpointBuild drv checkpointArtifacts
+  mkCheckpointBuild = drv: checkpointArtifacts:
+    drv.overrideAttrs (old: {
+      # The actual checkpoint build phase.
+      # We compare the changed sources from a previous build with the current and create a patch.
+      # Afterwards we clean the build directory and copy the previous output files (including the sources).
+      # The source difference patch is then applied to get the latest changes again to allow short build times.
+      preBuild = (old.preBuild or "") + ''
+        set +e
+        sourceDifferencePatchFile=$(${mktemp}/bin/mktemp)
+        diff -ur ${checkpointArtifacts}/sources ./ > "$sourceDifferencePatchFile"
+        set -e
+        shopt -s dotglob
+        rm -r *
+        ${rsync}/bin/rsync \
+          --checksum --times --atimes --chown=$USER:$USER --chmod=+w \
+          -r ${checkpointArtifacts}/outputs/ .
+        patch -p 1 -i "$sourceDifferencePatchFile"
+        rm "$sourceDifferencePatchFile"
+      '';
+    });
 
   mkCheckpointedBuild = lib.warn
     "`mkCheckpointedBuild` is deprecated, use `mkCheckpointBuild` instead!"

pkgs/build-support/closure-info.nix

@@ -21,22 +21,21 @@ stdenv.mkDerivation {
 
   nativeBuildInputs = [ coreutils jq ];
 
-  empty = rootPaths == [];
+  empty = rootPaths == [ ];
 
-  buildCommand =
-    ''
-      out=''${outputs[out]}
+  buildCommand = ''
+    out=''${outputs[out]}
 
-      mkdir $out
+    mkdir $out
 
-      if [[ -n "$empty" ]]; then
-        echo 0 > $out/total-nar-size
-        touch $out/registration $out/store-paths
-      else
-        jq -r ".closure | map(.narSize) | add" < "$NIX_ATTRS_JSON_FILE" > $out/total-nar-size
-        jq -r '.closure | map([.path, .narHash, .narSize, "", (.references | length)] + .references) | add | map("\(.)\n") | add' < "$NIX_ATTRS_JSON_FILE" | head -n -1 > $out/registration
-        jq -r '.closure[].path' < "$NIX_ATTRS_JSON_FILE" > $out/store-paths
-      fi
+    if [[ -n "$empty" ]]; then
+      echo 0 > $out/total-nar-size
+      touch $out/registration $out/store-paths
+    else
+      jq -r ".closure | map(.narSize) | add" < "$NIX_ATTRS_JSON_FILE" > $out/total-nar-size
+      jq -r '.closure | map([.path, .narHash, .narSize, "", (.references | length)] + .references) | add | map("\(.)\n") | add' < "$NIX_ATTRS_JSON_FILE" | head -n -1 > $out/registration
+      jq -r '.closure[].path' < "$NIX_ATTRS_JSON_FILE" > $out/store-paths
+    fi
 
-    '';
+  '';
 }

pkgs/build-support/coq/default.nix

@@ -1,155 +1,155 @@
 { lib, stdenv, coqPackages, coq, which, fetchzip }@args:
 
 let
-  lib = import ./extra-lib.nix {
-    inherit (args) lib;
-  };
+  lib = import ./extra-lib.nix { inherit (args) lib; };
 
   inherit (lib)
-    concatStringsSep
-    flip
-    foldl
-    isFunction
-    isString
-    optional
-    optionalAttrs
-    optionals
-    optionalString
-    pred
-    remove
-    switch
-    versions
-    ;
+    concatStringsSep flip foldl isFunction isString optional optionalAttrs
+    optionals optionalString pred remove switch versions;
 
   inherit (lib.attrsets) removeAttrs;
   inherit (lib.strings) match;
 
   isGitHubDomain = d: match "^github.*" d != null;
   isGitLabDomain = d: match "^gitlab.*" d != null;
-in
 
-{ pname,
-  version ? null,
-  fetcher ? null,
-  owner ? "coq-community",
-  domain ? "github.com",
-  repo ? pname,
-  defaultVersion ? null,
-  releaseRev ? (v: v),
-  displayVersion ? {},
-  release ? {},
-  buildInputs ? [],
-  nativeBuildInputs ? [],
-  extraBuildInputs ? [],
-  extraNativeBuildInputs ? [],
-  overrideBuildInputs ? [],
-  overrideNativeBuildInputs ? [],
-  namePrefix ? [ "coq" ],
-  enableParallelBuilding ? true,
-  extraInstallFlags ? [],
-  setCOQBIN ? true,
-  mlPlugin ? false,
-  useMelquiondRemake ? null,
-  dropAttrs ? [],
-  keepAttrs ? [],
-  dropDerivationAttrs ? [],
-  useDuneifVersion ? (x: false),
-  useDune ? false,
-  opam-name ? (concatStringsSep "-" (namePrefix ++ [ pname ])),
-  ...
-}@args:
+in { pname, version ? null, fetcher ? null, owner ? "coq-community"
+, domain ? "github.com", repo ? pname, defaultVersion ? null
+, releaseRev ? (v: v), displayVersion ? { }, release ? { }, buildInputs ? [ ]
+, nativeBuildInputs ? [ ], extraBuildInputs ? [ ], extraNativeBuildInputs ? [ ]
+, overrideBuildInputs ? [ ], overrideNativeBuildInputs ? [ ]
+, namePrefix ? [ "coq" ], enableParallelBuilding ? true, extraInstallFlags ? [ ]
+, setCOQBIN ? true, mlPlugin ? false, useMelquiondRemake ? null, dropAttrs ? [ ]
+, keepAttrs ? [ ], dropDerivationAttrs ? [ ], useDuneifVersion ? (x: false)
+, useDune ? false, opam-name ? (concatStringsSep "-" (namePrefix ++ [ pname ]))
+, ... }@args:
 let
   args-to-remove = foldl (flip remove) ([
-    "version" "fetcher" "repo" "owner" "domain" "releaseRev"
-    "displayVersion" "defaultVersion" "useMelquiondRemake"
+    "version"
+    "fetcher"
+    "repo"
+    "owner"
+    "domain"
+    "releaseRev"
+    "displayVersion"
+    "defaultVersion"
+    "useMelquiondRemake"
     "release"
-    "buildInputs" "nativeBuildInputs"
-    "extraBuildInputs" "extraNativeBuildInputs"
-    "overrideBuildInputs" "overrideNativeBuildInputs"
+    "buildInputs"
+    "nativeBuildInputs"
+    "extraBuildInputs"
+    "extraNativeBuildInputs"
+    "overrideBuildInputs"
+    "overrideNativeBuildInputs"
     "namePrefix"
-    "meta" "useDuneifVersion" "useDune" "opam-name"
-    "extraInstallFlags" "setCOQBIN" "mlPlugin"
-    "dropAttrs" "dropDerivationAttrs" "keepAttrs" ] ++ dropAttrs) keepAttrs;
-  fetch = import ../coq/meta-fetch/default.nix
-    { inherit lib stdenv fetchzip; } ({
+    "meta"
+    "useDuneifVersion"
+    "useDune"
+    "opam-name"
+    "extraInstallFlags"
+    "setCOQBIN"
+    "mlPlugin"
+    "dropAttrs"
+    "dropDerivationAttrs"
+    "keepAttrs"
+  ] ++ dropAttrs) keepAttrs;
+  fetch = import ../coq/meta-fetch/default.nix { inherit lib stdenv fetchzip; }
+    ({
       inherit release releaseRev;
       location = { inherit domain owner repo; };
-    } // optionalAttrs (args?fetcher) {inherit fetcher;});
+    } // optionalAttrs (args ? fetcher) { inherit fetcher; });
   fetched = fetch (if version != null then version else defaultVersion);
   display-pkg = n: sep: v:
-    let d = displayVersion.${n} or (if sep == "" then ".." else true); in
-    n + optionalString (v != "" && v != null) (switch d [
-      { case = true;       out = sep + v; }
-      { case = ".";        out = sep + versions.major v; }
-      { case = "..";       out = sep + versions.majorMinor v; }
-      { case = "...";      out = sep + versions.majorMinorPatch v; }
-      { case = isFunction; out = optionalString (d v != "") (sep + d v); }
-      { case = isString;   out = optionalString (d != "") (sep + d); }
+    let d = displayVersion.${n} or (if sep == "" then ".." else true);
+    in n + optionalString (v != "" && v != null) (switch d [
+      {
+        case = true;
+        out = sep + v;
+      }
+      {
+        case = ".";
+        out = sep + versions.major v;
+      }
+      {
+        case = "..";
+        out = sep + versions.majorMinor v;
+      }
+      {
+        case = "...";
+        out = sep + versions.majorMinorPatch v;
+      }
+      {
+        case = isFunction;
+        out = optionalString (d v != "") (sep + d v);
+      }
+      {
+        case = isString;
+        out = optionalString (d != "") (sep + d);
+      }
     ] "") + optionalString (v == null) "-broken";
   append-version = p: n: p + display-pkg n "" coqPackages.${n}.version + "-";
   prefix-name = foldl append-version "" namePrefix;
   useDune = args.useDune or (useDuneifVersion fetched.version);
-  coqlib-flags = switch coq.coq-version [
-    { case = v: versions.isLe "8.6" v && v != "dev" ;
-      out = [ "COQLIB=$(out)/lib/coq/${coq.coq-version}/" ]; }
-  ] [ "COQLIBINSTALL=$(out)/lib/coq/${coq.coq-version}/user-contrib"
-      "COQPLUGININSTALL=$(OCAMLFIND_DESTDIR)" ];
-  docdir-flags = switch coq.coq-version [
-    { case = v: versions.isLe "8.6" v && v != "dev";
-      out = [ "DOCDIR=$(out)/share/coq/${coq.coq-version}/" ]; }
-  ] [ "COQDOCINSTALL=$(out)/share/coq/${coq.coq-version}/user-contrib" ];
-in
+  coqlib-flags = switch coq.coq-version [{
+    case = v: versions.isLe "8.6" v && v != "dev";
+    out = [ "COQLIB=$(out)/lib/coq/${coq.coq-version}/" ];
+  }] [
+    "COQLIBINSTALL=$(out)/lib/coq/${coq.coq-version}/user-contrib"
+    "COQPLUGININSTALL=$(OCAMLFIND_DESTDIR)"
+  ];
+  docdir-flags = switch coq.coq-version [{
+    case = v: versions.isLe "8.6" v && v != "dev";
+    out = [ "DOCDIR=$(out)/share/coq/${coq.coq-version}/" ];
+  }] [ "COQDOCINSTALL=$(out)/share/coq/${coq.coq-version}/user-contrib" ];
 
-stdenv.mkDerivation (removeAttrs ({
+in stdenv.mkDerivation (removeAttrs ({
 
   name = prefix-name + (display-pkg pname "-" fetched.version);
 
   inherit (fetched) version src;
 
-  nativeBuildInputs = args.overrideNativeBuildInputs
-    or ([ which ]
-        ++ optional useDune coq.ocamlPackages.dune_3
-        ++ optionals (useDune || mlPlugin) [ coq.ocamlPackages.ocaml coq.ocamlPackages.findlib ]
-        ++ (args.nativeBuildInputs or []) ++ extraNativeBuildInputs);
-  buildInputs = args.overrideBuildInputs
-    or ([ coq ] ++ (args.buildInputs or []) ++ extraBuildInputs);
+  nativeBuildInputs = args.overrideNativeBuildInputs or ([ which ]
+    ++ optional useDune coq.ocamlPackages.dune_3
+    ++ optionals (useDune || mlPlugin) [
+      coq.ocamlPackages.ocaml
+      coq.ocamlPackages.findlib
+    ] ++ (args.nativeBuildInputs or [ ]) ++ extraNativeBuildInputs);
+  buildInputs = args.overrideBuildInputs or ([ coq ]
+    ++ (args.buildInputs or [ ]) ++ extraBuildInputs);
   inherit enableParallelBuilding;
 
-  meta = ({ platforms = coq.meta.platforms; } //
-    (switch domain [{
-        case = pred.union isGitHubDomain isGitLabDomain;
-        out = { homepage = "https://${domain}/${owner}/${repo}"; };
-      }] {}) //
-    optionalAttrs (fetched.broken or false) { coqFilter = true; broken = true; }) //
-    (args.meta or {}) ;
+  meta = ({
+    platforms = coq.meta.platforms;
+  } // (switch domain [{
+    case = pred.union isGitHubDomain isGitLabDomain;
+    out = { homepage = "https://${domain}/${owner}/${repo}"; };
+  }] { }) // optionalAttrs (fetched.broken or false) {
+    coqFilter = true;
+    broken = true;
+  }) // (args.meta or { });
 
-}
-// (optionalAttrs setCOQBIN { COQBIN = "${coq}/bin/"; })
-// (optionalAttrs (!args?installPhase && !args?useMelquiondRemake) {
-  installFlags =
-    coqlib-flags ++ docdir-flags ++
-    extraInstallFlags;
-})
-// (optionalAttrs useDune {
-  buildPhase = ''
-    runHook preBuild
-    dune build -p ${opam-name} ''${enableParallelBuilding:+-j $NIX_BUILD_CORES}
-    runHook postBuild
-  '';
-  installPhase = ''
-    runHook preInstall
-    dune install ${opam-name} --prefix=$out
-    mv $out/lib/coq $out/lib/TEMPORARY
-    mkdir $out/lib/coq/
-    mv $out/lib/TEMPORARY $out/lib/coq/${coq.coq-version}
-    runHook postInstall
-  '';
-})
-// (optionalAttrs (args?useMelquiondRemake) rec {
-  COQUSERCONTRIB = "$out/lib/coq/${coq.coq-version}/user-contrib";
-  preConfigurePhases = "autoconf";
-  configureFlags = [ "--libdir=${COQUSERCONTRIB}/${useMelquiondRemake.logpath or ""}" ];
-  buildPhase = "./remake -j$NIX_BUILD_CORES";
-  installPhase = "./remake install";
-})
-// (removeAttrs args args-to-remove)) dropDerivationAttrs)
+} // (optionalAttrs setCOQBIN { COQBIN = "${coq}/bin/"; })
+  // (optionalAttrs (!args ? installPhase && !args ? useMelquiondRemake) {
+    installFlags = coqlib-flags ++ docdir-flags ++ extraInstallFlags;
+  }) // (optionalAttrs useDune {
+    buildPhase = ''
+      runHook preBuild
+      dune build -p ${opam-name} ''${enableParallelBuilding:+-j $NIX_BUILD_CORES}
+      runHook postBuild
+    '';
+    installPhase = ''
+      runHook preInstall
+      dune install ${opam-name} --prefix=$out
+      mv $out/lib/coq $out/lib/TEMPORARY
+      mkdir $out/lib/coq/
+      mv $out/lib/TEMPORARY $out/lib/coq/${coq.coq-version}
+      runHook postInstall
+    '';
+  }) // (optionalAttrs (args ? useMelquiondRemake) rec {
+    COQUSERCONTRIB = "$out/lib/coq/${coq.coq-version}/user-contrib";
+    preConfigurePhases = "autoconf";
+    configureFlags =
+      [ "--libdir=${COQUSERCONTRIB}/${useMelquiondRemake.logpath or ""}" ];
+    buildPhase = "./remake -j$NIX_BUILD_CORES";
+    installPhase = "./remake install";
+  }) // (removeAttrs args args-to-remove)) dropDerivationAttrs)

pkgs/build-support/coq/extra-lib.nix

@@ -2,31 +2,17 @@
 
 let
   inherit (lib)
-    all
-    concatStringsSep
-    findFirst
-    flip
-    getAttr
-    head
-    isFunction
-    length
-    recursiveUpdate
-    splitVersion
-    tail
-    take
-    versionAtLeast
-    versionOlder
-    zipListsWith
-    ;
-in
-recursiveUpdate lib (rec {
+    all concatStringsSep findFirst flip getAttr head isFunction length
+    recursiveUpdate splitVersion tail take versionAtLeast versionOlder
+    zipListsWith;
+in recursiveUpdate lib (rec {
 
-  versions =
-    let
-      truncate = n: v: concatStringsSep "." (take n (splitVersion v));
-      opTruncate = op: v0: v: let n = length (splitVersion v0); in
-         op (truncate n v) (truncate n v0);
-    in rec {
+  versions = let
+    truncate = n: v: concatStringsSep "." (take n (splitVersion v));
+    opTruncate = op: v0: v:
+      let n = length (splitVersion v0);
+      in op (truncate n v) (truncate n v0);
+  in rec {
 
     /* Get string of the first n parts of a version string.
 
@@ -50,34 +36,33 @@ recursiveUpdate lib (rec {
     majorMinorPatch = truncate 3;
 
     /* Version comparison predicates,
-      - isGe v0 v <-> v is greater or equal than v0   [*]
-      - isLe v0 v <-> v is lesser  or equal than v0   [*]
-      - isGt v0 v <-> v is strictly greater than v0   [*]
-      - isLt v0 v <-> v is strictly lesser  than v0   [*]
-      - isEq v0 v <-> v is equal to v0                [*]
-      - range low high v <-> v is between low and high [**]
+         - isGe v0 v <-> v is greater or equal than v0   [*]
+         - isLe v0 v <-> v is lesser  or equal than v0   [*]
+         - isGt v0 v <-> v is strictly greater than v0   [*]
+         - isLt v0 v <-> v is strictly lesser  than v0   [*]
+         - isEq v0 v <-> v is equal to v0                [*]
+         - range low high v <-> v is between low and high [**]
 
-    [*]  truncating v to the same number of digits as v0
-    [**] truncating v to low for the lower bound and high for the upper bound
-
-      Examples:
-      - isGe "8.10" "8.10.1"
-        => true
-      - isLe "8.10" "8.10.1"
-        => true
-      - isGt "8.10" "8.10.1"
-        => false
-      - isGt "8.10.0" "8.10.1"
-        => true
-      - isEq "8.10" "8.10.1"
-        => true
-      - range "8.10" "8.11" "8.11.1"
-        => true
-      - range "8.10" "8.11+" "8.11.0"
-        => false
-      - range "8.10" "8.11+" "8.11+beta1"
-        => false
+       [*]  truncating v to the same number of digits as v0
+       [**] truncating v to low for the lower bound and high for the upper bound
 
+         Examples:
+         - isGe "8.10" "8.10.1"
+           => true
+         - isLe "8.10" "8.10.1"
+           => true
+         - isGt "8.10" "8.10.1"
+           => false
+         - isGt "8.10.0" "8.10.1"
+           => true
+         - isEq "8.10" "8.10.1"
+           => true
+         - range "8.10" "8.11" "8.11.1"
+           => true
+         - range "8.10" "8.11+" "8.11.0"
+           => false
+         - range "8.10" "8.11+" "8.11+beta1"
+           => false
     */
     isGe = opTruncate versionAtLeast;
     isGt = opTruncate (flip versionOlder);
@@ -88,80 +73,99 @@ recursiveUpdate lib (rec {
   };
 
   /* Returns a list of list, splitting it using a predicate.
-     This is analoguous to builtins.split sep list,
-     with a predicate as a separator and a list instead of a string.
+      This is analoguous to builtins.split sep list,
+      with a predicate as a separator and a list instead of a string.
 
-    Type: splitList :: (a -> bool) -> [a] -> [[a]]
+     Type: splitList :: (a -> bool) -> [a] -> [[a]]
 
-    Example:
-      splitList (x: x == "x") [ "y" "x" "z" "t" ]
-      => [ [ "y" ] "x" [ "z" "t" ] ]
+     Example:
+       splitList (x: x == "x") [ "y" "x" "z" "t" ]
+       => [ [ "y" ] "x" [ "z" "t" ] ]
   */
   splitList = pred: l: # put in file lists
-    let loop = (vv: v: l: if l == [] then vv ++ [v]
-      else let hd = head l; tl = tail l; in
-      if pred hd then loop (vv ++ [ v hd ]) [] tl else loop vv (v ++ [hd]) tl);
-    in loop [] [] l;
+    let
+      loop = (vv: v: l:
+        if l == [ ] then
+          vv ++ [ v ]
+        else
+          let
+            hd = head l;
+            tl = tail l;
+          in if pred hd then
+            loop (vv ++ [ v hd ]) [ ] tl
+          else
+            loop vv (v ++ [ hd ]) tl);
+    in loop [ ] [ ] l;
 
   pred = {
-    /* Predicate intersection, union, and complement */
+    # Predicate intersection, union, and complement
     inter = p: q: x: p x && q x;
     union = p: q: x: p x || q x;
-    compl = p:    x: ! p x;
-    true  = p: true;
+    compl = p: x: !p x;
+    true = p: true;
     false = p: false;
 
-    /* predicate "being equal to y" */
-    equal = y:    x: x == y;
+    # predicate "being equal to y"
+    equal = y: x: x == y;
   };
 
   /* Emulate a "switch - case" construct,
-   instead of relying on `if then else if ...` */
+     instead of relying on `if then else if ...`
+  */
   /* Usage:
-  ```nix
-  switch-if [
-    if-clause-1
-    ..
-    if-clause-k
-  ] default-out
-  ```
-  where a if-clause has the form `{ cond = b; out = r; }`
-  the first branch such as `b` is true */
+     ```nix
+     switch-if [
+       if-clause-1
+       ..
+       if-clause-k
+     ] default-out
+     ```
+     where a if-clause has the form `{ cond = b; out = r; }`
+     the first branch such as `b` is true
+  */
 
-  switch-if = c: d: (findFirst (getAttr "cond") {} c).out or d;
+  switch-if = c: d: (findFirst (getAttr "cond") { } c).out or d;
 
   /* Usage:
-  ```nix
-  switch x [
-    simple-clause-1
-    ..
-    simple-clause-k
-  ] default-out
-  ```
-  where a simple-clause has the form `{ case = p; out = r; }`
-  the first branch such as `p x` is true
-  or
-  ```nix
-  switch [ x1 .. xn ] [
-    complex-clause-1
-    ..
-    complex-clause-k
-  ] default-out
-  ```
-  where a complex-clause is either a simple-clause
-  or has the form { cases = [ p1 .. pn ]; out = r; }
-  in which case the first branch such as all `pi x` are true
+     ```nix
+     switch x [
+       simple-clause-1
+       ..
+       simple-clause-k
+     ] default-out
+     ```
+     where a simple-clause has the form `{ case = p; out = r; }`
+     the first branch such as `p x` is true
+     or
+     ```nix
+     switch [ x1 .. xn ] [
+       complex-clause-1
+       ..
+       complex-clause-k
+     ] default-out
+     ```
+     where a complex-clause is either a simple-clause
+     or has the form { cases = [ p1 .. pn ]; out = r; }
+     in which case the first branch such as all `pi x` are true
 
-  if the variables p are not functions,
-  they are converted to a equal p
-  if out is missing the default-out is taken */
+     if the variables p are not functions,
+     they are converted to a equal p
+     if out is missing the default-out is taken
+  */
 
-  switch = var: clauses: default: with pred; let
-      compare = f:  if isFunction f then f else equal f;
+  switch = var: clauses: default:
+    with pred;
+    let
+      compare = f: if isFunction f then f else equal f;
       combine = cl: var:
-        if cl?case then compare cl.case var
-        else all (equal true) (zipListsWith compare cl.cases var); in
-    switch-if (map (cl: { cond = combine cl var; inherit (cl) out; }) clauses) default;
+        if cl ? case then
+          compare cl.case var
+        else
+          all (equal true) (zipListsWith compare cl.cases var);
+    in switch-if (map (cl: {
+      cond = combine cl var;
+      inherit (cl) out;
+    }) clauses) default;
 
   /* Override arguments to mkCoqDerivation for a Coq library.
 
@@ -207,7 +211,8 @@ recursiveUpdate lib (rec {
      coqPackages.QuickChick.override { version = "1.4.0"; }
      ```
   */
-  overrideCoqDerivation = f: drv: (drv.override (args: {
-    mkCoqDerivation = drv_: (args.mkCoqDerivation drv_).override f;
-  }));
+  overrideCoqDerivation = f: drv:
+    (drv.override (args: {
+      mkCoqDerivation = drv_: (args.mkCoqDerivation drv_).override f;
+    }));
 })

pkgs/build-support/coq/meta-fetch/default.nix

@@ -1,95 +1,118 @@
 { lib, stdenv, fetchzip }@args:
 
 let
-  lib = import ../extra-lib.nix {
-    inherit (args) lib;
-  };
+  lib = import ../extra-lib.nix { inherit (args) lib; };
 
   inherit (lib)
-    attrNames
-    fakeSha256
-    filter
-    findFirst
-    head
-    isAttrs
-    isPath
-    isString
-    last
-    length
-    optionalAttrs
-    pathExists
-    pred
-    sort
-    switch
-    switch-if
-    versionAtLeast
-    versions
-    ;
+    attrNames fakeSha256 filter findFirst head isAttrs isPath isString last
+    length optionalAttrs pathExists pred sort switch switch-if versionAtLeast
+    versions;
 
   inherit (lib.strings) match split;
 
-  default-fetcher = {domain ? "github.com", owner ? "", repo, rev, name ? "source", sha256 ? null, ...}@args:
-    let ext = if args?sha256 then "zip" else "tar.gz";
-        fmt = if args?sha256 then "zip" else "tarball";
-        pr  = match "^#(.*)$" rev;
-        url = switch-if [
-          { cond = pr == null && (match "^github.*" domain) != null;
-            out = "https://${domain}/${owner}/${repo}/archive/${rev}.${ext}"; }
-          { cond = pr != null && (match "^github.*" domain) != null;
-            out = "https://api.${domain}/repos/${owner}/${repo}/${fmt}/pull/${head pr}/head"; }
-          { cond = pr == null && (match "^gitlab.*" domain) != null;
-            out = "https://${domain}/${owner}/${repo}/-/archive/${rev}/${repo}-${rev}.${ext}"; }
-          { cond = (match "(www.)?mpi-sws.org" domain) != null;
-            out = "https://www.mpi-sws.org/~${owner}/${repo}/download/${repo}-${rev}.${ext}";}
-        ] (throw "meta-fetch: no fetcher found for domain ${domain} on ${rev}");
-        fetch = x: if args?sha256 then fetchzip (x // { inherit sha256; }) else builtins.fetchTarball x;
-    in fetch { inherit url ; };
-in
-{
-  fetcher ? default-fetcher,
-  location,
-  release ? {},
-  releaseRev ? (v: v),
-}:
-let isVersion      = x: isString x && match "^/.*" x == null && release?${x};
-    shortVersion   = x: if (isString x && match "^/.*" x == null)
-      then findFirst (v: versions.majorMinor v == x) null
-        (sort versionAtLeast (attrNames release))
-      else null;
-    isShortVersion = x: shortVersion x != null;
-    isPathString   = x: isString x && match "^/.*" x != null && pathExists x; in
-arg:
+  default-fetcher = { domain ? "github.com", owner ? "", repo, rev
+    , name ? "source", sha256 ? null, ... }@args:
+    let
+      ext = if args ? sha256 then "zip" else "tar.gz";
+      fmt = if args ? sha256 then "zip" else "tarball";
+      pr = match "^#(.*)$" rev;
+      url = switch-if [
+        {
+          cond = pr == null && (match "^github.*" domain) != null;
+          out = "https://${domain}/${owner}/${repo}/archive/${rev}.${ext}";
+        }
+        {
+          cond = pr != null && (match "^github.*" domain) != null;
+          out = "https://api.${domain}/repos/${owner}/${repo}/${fmt}/pull/${
+              head pr
+            }/head";
+        }
+        {
+          cond = pr == null && (match "^gitlab.*" domain) != null;
+          out =
+            "https://${domain}/${owner}/${repo}/-/archive/${rev}/${repo}-${rev}.${ext}";
+        }
+        {
+          cond = (match "(www.)?mpi-sws.org" domain) != null;
+          out =
+            "https://www.mpi-sws.org/~${owner}/${repo}/download/${repo}-${rev}.${ext}";
+        }
+      ] (throw "meta-fetch: no fetcher found for domain ${domain} on ${rev}");
+      fetch = x:
+        if args ? sha256 then
+          fetchzip (x // { inherit sha256; })
+        else
+          builtins.fetchTarball x;
+    in fetch { inherit url; };
+in { fetcher ? default-fetcher, location, release ? { }, releaseRev ? (v: v), }:
+let
+  isVersion = x: isString x && match "^/.*" x == null && release ? ${x};
+  shortVersion = x:
+    if (isString x && match "^/.*" x == null) then
+      findFirst (v: versions.majorMinor v == x) null
+      (sort versionAtLeast (attrNames release))
+    else
+      null;
+  isShortVersion = x: shortVersion x != null;
+  isPathString = x: isString x && match "^/.*" x != null && pathExists x;
+in arg:
 switch arg [
-  { case = isNull;       out = { version = "broken"; src = ""; broken = true; }; }
-  { case = isPathString; out = { version = "dev"; src = arg; }; }
-  { case = pred.union isVersion isShortVersion;
+  {
+    case = isNull;
+    out = {
+      version = "broken";
+      src = "";
+      broken = true;
+    };
+  }
+  {
+    case = isPathString;
+    out = {
+      version = "dev";
+      src = arg;
+    };
+  }
+  {
+    case = pred.union isVersion isShortVersion;
     out = let
       v = if isVersion arg then arg else shortVersion arg;
       given-sha256 = release.${v}.sha256 or "";
       sha256 = if given-sha256 == "" then fakeSha256 else given-sha256;
       rv = release.${v} // { inherit sha256; };
-    in
-      {
-        version = rv.version or v;
-        src = rv.src or fetcher (location // { rev = releaseRev v; } // rv);
-      };
-    }
-  { case = isString;
+    in {
+      version = rv.version or v;
+      src = rv.src or fetcher (location // { rev = releaseRev v; } // rv);
+    };
+  }
+  {
+    case = isString;
     out = let
-        splitted  = filter isString (split ":" arg);
-        rev       = last splitted;
-        has-owner = length splitted > 1;
-        version   = "dev"; in {
+      splitted = filter isString (split ":" arg);
+      rev = last splitted;
+      has-owner = length splitted > 1;
+      version = "dev";
+    in {
       inherit version;
-      src = fetcher (location // { inherit rev; } //
-        (optionalAttrs has-owner { owner = head splitted; }));
-    }; }
-  { case = isAttrs;
+      src = fetcher (location // {
+        inherit rev;
+      } // (optionalAttrs has-owner { owner = head splitted; }));
+    };
+  }
+  {
+    case = isAttrs;
     out = {
       version = arg.version or "dev";
-      src = (arg.fetcher or fetcher) (location // (arg.location or {})); }; }
-  { case = isPath;
+      src = (arg.fetcher or fetcher) (location // (arg.location or { }));
+    };
+  }
+  {
+    case = isPath;
     out = {
-      version = "dev" ;
-      src = builtins.path {path = arg; name = location.name or "source";}; }; }
+      version = "dev";
+      src = builtins.path {
+        path = arg;
+        name = location.name or "source";
+      };
+    };
+  }
 ] (throw "not a valid source description")

pkgs/build-support/dart/build-dart-application/default.nix

@@ -1,33 +1,16 @@
-{ lib
-, stdenv
-, callPackage
-, runCommand
-, writeText
-, pub2nix
-, dartHooks
-, makeWrapper
-, dart
-, nodejs
-, darwin
-, jq
-, yq
-}:
+{ lib, stdenv, callPackage, runCommand, writeText, pub2nix, dartHooks
+, makeWrapper, dart, nodejs, darwin, jq, yq }:
 
-{ src
-, sourceRoot ? "source"
+{ src, sourceRoot ? "source"
 , packageRoot ? (lib.removePrefix "/" (lib.removePrefix "source" sourceRoot))
-, gitHashes ? { }
-, sdkSourceBuilders ? { }
-, customSourceBuilders ? { }
+, gitHashes ? { }, sdkSourceBuilders ? { }, customSourceBuilders ? { }
 
-, sdkSetupScript ? ""
-, extraPackageConfigSetup ? ""
+, sdkSetupScript ? "", extraPackageConfigSetup ? ""
 
   # Output type to produce. Can be any kind supported by dart
   # https://dart.dev/tools/dart-compile#types-of-output
   # If using jit, you might want to pass some arguments to `dartJitFlags`
-, dartOutputType ? "exe"
-, dartCompileCommand ? "dart compile"
+, dartOutputType ? "exe", dartCompileCommand ? "dart compile"
 , dartCompileFlags ? [ ]
   # These come at the end of the command, useful to pass flags to the jit run
 , dartJitFlags ? [ ]
@@ -39,31 +22,40 @@
 , dartEntryPoints ? null
   # Used when wrapping aot, jit, kernel, and js builds.
   # Set to null to disable wrapping.
-, dartRuntimeCommand ? if dartOutputType == "aot-snapshot" then "${dart}/bin/dartaotruntime"
-  else if (dartOutputType == "jit-snapshot" || dartOutputType == "kernel") then "${dart}/bin/dart"
-  else if dartOutputType == "js" then "${nodejs}/bin/node"
-  else null
+, dartRuntimeCommand ? if dartOutputType == "aot-snapshot" then
+  "${dart}/bin/dartaotruntime"
+else if (dartOutputType == "jit-snapshot" || dartOutputType == "kernel") then
+  "${dart}/bin/dart"
+else if dartOutputType == "js" then
+  "${nodejs}/bin/node"
+else
+  null
 
-, runtimeDependencies ? [ ]
-, extraWrapProgramArgs ? ""
+, runtimeDependencies ? [ ], extraWrapProgramArgs ? ""
 
-, autoPubspecLock ? null
-, pubspecLock ? if autoPubspecLock == null then
-    throw "The pubspecLock argument is required. If import-from-derivation is allowed (it isn't in Nixpkgs), you can set autoPubspecLock to the path to a pubspec.lock instead."
-  else
-    assert lib.assertMsg (builtins.pathExists autoPubspecLock) "The pubspec.lock file could not be found!";
-    lib.importJSON (runCommand "${lib.getName args}-pubspec-lock-json" { nativeBuildInputs = [ yq ]; } ''yq . '${autoPubspecLock}' > "$out"'')
-, ...
-}@args:
+, autoPubspecLock ? null, pubspecLock ? if autoPubspecLock == null then
+  throw
+  "The pubspecLock argument is required. If import-from-derivation is allowed (it isn't in Nixpkgs), you can set autoPubspecLock to the path to a pubspec.lock instead."
+else
+  assert lib.assertMsg (builtins.pathExists autoPubspecLock)
+    "The pubspec.lock file could not be found!";
+  lib.importJSON (runCommand "${lib.getName args}-pubspec-lock-json" {
+    nativeBuildInputs = [ yq ];
+  } ''yq . '${autoPubspecLock}' > "$out"''), ... }@args:
 
 let
-  generators = callPackage ./generators.nix { inherit dart; } { buildDrvArgs = args; };
+  generators =
+    callPackage ./generators.nix { inherit dart; } { buildDrvArgs = args; };
 
   pubspecLockFile = builtins.toJSON pubspecLock;
-  pubspecLockData = pub2nix.readPubspecLock { inherit src packageRoot pubspecLock gitHashes sdkSourceBuilders customSourceBuilders; };
+  pubspecLockData = pub2nix.readPubspecLock {
+    inherit src packageRoot pubspecLock gitHashes sdkSourceBuilders
+      customSourceBuilders;
+  };
   packageConfig = generators.linkPackageConfig {
     packageConfig = pub2nix.generatePackageConfig {
-      pname = if args.pname != null then "${args.pname}-${args.version}" else null;
+      pname =
+        if args.pname != null then "${args.pname}-${args.version}" else null;
 
       dependencies =
         # Ideally, we'd only include the main dependencies and their transitive
@@ -80,53 +72,56 @@ let
     extraSetupCommands = extraPackageConfigSetup;
   };
 
-  inherit (dartHooks.override { inherit dart; }) dartConfigHook dartBuildHook dartInstallHook dartFixupHook;
+  inherit (dartHooks.override { inherit dart; })
+    dartConfigHook dartBuildHook dartInstallHook dartFixupHook;
 
-  baseDerivation = stdenv.mkDerivation (finalAttrs: (builtins.removeAttrs args [ "gitHashes" "sdkSourceBuilders" "pubspecLock" "customSourceBuilders" ]) // {
-    inherit pubspecLockFile packageConfig sdkSetupScript
-      dartCompileCommand dartOutputType dartRuntimeCommand dartCompileFlags
-      dartJitFlags;
+  baseDerivation = stdenv.mkDerivation (finalAttrs:
+    (builtins.removeAttrs args [
+      "gitHashes"
+      "sdkSourceBuilders"
+      "pubspecLock"
+      "customSourceBuilders"
+    ]) // {
+      inherit pubspecLockFile packageConfig sdkSetupScript dartCompileCommand
+        dartOutputType dartRuntimeCommand dartCompileFlags dartJitFlags;
 
-    outputs = [ "out" "pubcache" ] ++ args.outputs or [ ];
+      outputs = [ "out" "pubcache" ] ++ args.outputs or [ ];
 
-    dartEntryPoints =
-      if (dartEntryPoints != null)
-      then writeText "entrypoints.json" (builtins.toJSON dartEntryPoints)
-      else null;
+      dartEntryPoints = if (dartEntryPoints != null) then
+        writeText "entrypoints.json" (builtins.toJSON dartEntryPoints)
+      else
+        null;
 
-    runtimeDependencies = map lib.getLib runtimeDependencies;
+      runtimeDependencies = map lib.getLib runtimeDependencies;
 
-    nativeBuildInputs = (args.nativeBuildInputs or [ ]) ++ [
-      dart
-      dartConfigHook
-      dartBuildHook
-      dartInstallHook
-      dartFixupHook
-      makeWrapper
-      jq
-    ] ++ lib.optionals stdenv.isDarwin [
-      darwin.sigtool
-    ] ++
-      # Ensure that we inherit the propagated build inputs from the dependencies.
-      builtins.attrValues pubspecLockData.dependencySources;
+      nativeBuildInputs = (args.nativeBuildInputs or [ ]) ++ [
+        dart
+        dartConfigHook
+        dartBuildHook
+        dartInstallHook
+        dartFixupHook
+        makeWrapper
+        jq
+      ] ++ lib.optionals stdenv.isDarwin [ darwin.sigtool ] ++
+        # Ensure that we inherit the propagated build inputs from the dependencies.
+        builtins.attrValues pubspecLockData.dependencySources;
 
-    preConfigure = args.preConfigure or "" + ''
-      ln -sf "$pubspecLockFilePath" pubspec.lock
-    '';
+      preConfigure = args.preConfigure or "" + ''
+        ln -sf "$pubspecLockFilePath" pubspec.lock
+      '';
 
-    # When stripping, it seems some ELF information is lost and the dart VM cli
-    # runs instead of the expected program. Don't strip if it's an exe output.
-    dontStrip = args.dontStrip or (dartOutputType == "exe");
+      # When stripping, it seems some ELF information is lost and the dart VM cli
+      # runs instead of the expected program. Don't strip if it's an exe output.
+      dontStrip = args.dontStrip or (dartOutputType == "exe");
 
-    passAsFile = [ "pubspecLockFile" ];
+      passAsFile = [ "pubspecLockFile" ];
 
-    passthru = {
-      pubspecLock = pubspecLockData;
-    } // (args.passthru or { });
+      passthru = { pubspecLock = pubspecLockData; } // (args.passthru or { });
 
-    meta = (args.meta or { }) // { platforms = args.meta.platforms or dart.meta.platforms; };
-  });
-in
-assert !(builtins.isString dartOutputType && dartOutputType != "") ->
-throw "dartOutputType must be a non-empty string";
+      meta = (args.meta or { }) // {
+        platforms = args.meta.platforms or dart.meta.platforms;
+      };
+    });
+in assert !(builtins.isString dartOutputType && dartOutputType != "")
+  -> throw "dartOutputType must be a non-empty string";
 baseDerivation

pkgs/build-support/dart/build-dart-application/generators.nix

@@ -1,20 +1,11 @@
-{ lib
-, stdenvNoCC
-, dart
-, dartHooks
-, jq
-, yq
-, cacert
-}:
+{ lib, stdenvNoCC, dart, dartHooks, jq, yq, cacert }:
 
 {
-  # Arguments used in the derivation that builds the Dart package.
-  # Passing these is recommended to ensure that the same steps are made to
-  # prepare the sources in both this derivation and the one that builds the Dart
-  # package.
-  buildDrvArgs ? { }
-, ...
-}@args:
+# Arguments used in the derivation that builds the Dart package.
+# Passing these is recommended to ensure that the same steps are made to
+# prepare the sources in both this derivation and the one that builds the Dart
+# package.
+buildDrvArgs ? { }, ... }@args:
 
 # This is a derivation and setup hook that can be used to fetch dependencies for Dart projects.
 # It is designed to be placed in the nativeBuildInputs of a derivation that builds a Dart package.
@@ -38,37 +29,36 @@ let
     "postPatch"
   ];
 
-  buildDrvInheritArgs = builtins.foldl'
-    (attrs: arg:
-      if buildDrvArgs ? ${arg}
-      then attrs // { ${arg} = buildDrvArgs.${arg}; }
-      else attrs)
-    { }
-    buildDrvInheritArgNames;
+  buildDrvInheritArgs = builtins.foldl' (attrs: arg:
+    if buildDrvArgs ? ${arg} then
+      attrs // { ${arg} = buildDrvArgs.${arg}; }
+    else
+      attrs) { } buildDrvInheritArgNames;
 
   drvArgs = buildDrvInheritArgs // (removeAttrs args [ "buildDrvArgs" ]);
-  name = (if drvArgs ? name then drvArgs.name else "${drvArgs.pname}-${drvArgs.version}");
+  name = (if drvArgs ? name then
+    drvArgs.name
+  else
+    "${drvArgs.pname}-${drvArgs.version}");
 
   # Adds the root package to a dependency package_config.json file from pub2nix.
-  linkPackageConfig = { packageConfig, extraSetupCommands ? "" }: stdenvNoCC.mkDerivation (drvArgs // {
-    name = "${name}-package-config-with-root.json";
+  linkPackageConfig = { packageConfig, extraSetupCommands ? "" }:
+    stdenvNoCC.mkDerivation (drvArgs // {
+      name = "${name}-package-config-with-root.json";
 
-    nativeBuildInputs = drvArgs.nativeBuildInputs or [ ] ++ args.nativeBuildInputs or [ ] ++ [ jq yq ];
+      nativeBuildInputs = drvArgs.nativeBuildInputs or [ ]
+        ++ args.nativeBuildInputs or [ ] ++ [ jq yq ];
 
-    dontBuild = true;
+      dontBuild = true;
 
-    installPhase = ''
-      runHook preInstall
+      installPhase = ''
+        runHook preInstall
 
-      packageName="$(yq --raw-output .name pubspec.yaml)"
-      jq --arg name "$packageName" '.packages |= . + [{ name: $name, rootUri: "../", packageUri: "lib/" }]' '${packageConfig}' > "$out"
-      ${extraSetupCommands}
+        packageName="$(yq --raw-output .name pubspec.yaml)"
+        jq --arg name "$packageName" '.packages |= . + [{ name: $name, rootUri: "../", packageUri: "lib/" }]' '${packageConfig}' > "$out"
+        ${extraSetupCommands}
 
-      runHook postInstall
-    '';
-  });
-in
-{
-  inherit
-    linkPackageConfig;
-}
+        runHook postInstall
+      '';
+    });
+in { inherit linkPackageConfig; }

pkgs/build-support/dart/build-dart-application/hooks/default.nix

@@ -11,10 +11,8 @@
     substitutions.yq = "${yq}/bin/yq";
     substitutions.jq = "${jq}/bin/jq";
   } ./dart-build-hook.sh;
-  dartInstallHook = makeSetupHook {
-    name = "dart-install-hook";
-  } ./dart-install-hook.sh;
-  dartFixupHook = makeSetupHook {
-    name = "dart-fixup-hook";
-  } ./dart-fixup-hook.sh;
+  dartInstallHook =
+    makeSetupHook { name = "dart-install-hook"; } ./dart-install-hook.sh;
+  dartFixupHook =
+    makeSetupHook { name = "dart-fixup-hook"; } ./dart-fixup-hook.sh;
 }

pkgs/build-support/dart/pub2nix/package-config.nix

@@ -1,68 +1,63 @@
-{ lib
-, runCommand
-, jq
-, yq
-}:
+{ lib, runCommand, jq, yq }:
 
 { pname ? null
 
   # A list of dependency package names.
 , dependencies
 
-  # An attribute set of package names to sources.
-, dependencySources
-}:
+# An attribute set of package names to sources.
+, dependencySources }:
 
 let
   packages = lib.genAttrs dependencies (dependency: rec {
     src = dependencySources.${dependency};
     inherit (src) packageRoot;
   });
-in
-(runCommand "${lib.optionalString (pname != null) "${pname}-"}package-config.json" {
-  inherit packages;
+in (runCommand
+  "${lib.optionalString (pname != null) "${pname}-"}package-config.json" {
+    inherit packages;
 
-  nativeBuildInputs = [ jq yq ];
+    nativeBuildInputs = [ jq yq ];
 
-  __structuredAttrs = true;
-}) ''
-  declare -A packageSources
-  declare -A packageRoots
-  while IFS=',' read -r name src packageRoot; do
-    packageSources["$name"]="$src"
-    packageRoots["$name"]="$packageRoot"
-  done < <(jq -r '.packages | to_entries | map("\(.key),\(.value.src),\(.value.packageRoot)") | .[]' "$NIX_ATTRS_JSON_FILE")
+    __structuredAttrs = true;
+  }) ''
+    declare -A packageSources
+    declare -A packageRoots
+    while IFS=',' read -r name src packageRoot; do
+      packageSources["$name"]="$src"
+      packageRoots["$name"]="$packageRoot"
+    done < <(jq -r '.packages | to_entries | map("\(.key),\(.value.src),\(.value.packageRoot)") | .[]' "$NIX_ATTRS_JSON_FILE")
 
-  for package in "''${!packageSources[@]}"; do
-    if [ ! -e "''${packageSources["$package"]}/''${packageRoots["$package"]}/pubspec.yaml" ]; then
-      echo >&2 "The package sources for $package are missing. Is the following path inside the source derivation?"
-      echo >&2 "Source path: ''${packageSources["$package"]}/''${packageRoots["$package"]}/pubspec.yaml"
-      exit 1
-    fi
+    for package in "''${!packageSources[@]}"; do
+      if [ ! -e "''${packageSources["$package"]}/''${packageRoots["$package"]}/pubspec.yaml" ]; then
+        echo >&2 "The package sources for $package are missing. Is the following path inside the source derivation?"
+        echo >&2 "Source path: ''${packageSources["$package"]}/''${packageRoots["$package"]}/pubspec.yaml"
+        exit 1
+      fi
 
-    languageConstraint="$(yq -r .environment.sdk "''${packageSources["$package"]}/''${packageRoots["$package"]}/pubspec.yaml")"
-    if [[ "$languageConstraint" =~ ^[[:space:]]*(\^|>=|>)?[[:space:]]*([[:digit:]]+\.[[:digit:]]+)\.[[:digit:]]+.*$ ]]; then
-      languageVersionJson="\"''${BASH_REMATCH[2]}\""
-    elif [ "$languageConstraint" = 'any' ]; then
-      languageVersionJson='null'
-    else
-      # https://github.com/dart-lang/pub/blob/68dc2f547d0a264955c1fa551fa0a0e158046494/lib/src/language_version.dart#L106C35-L106C35
-      languageVersionJson='"2.7"'
-    fi
+      languageConstraint="$(yq -r .environment.sdk "''${packageSources["$package"]}/''${packageRoots["$package"]}/pubspec.yaml")"
+      if [[ "$languageConstraint" =~ ^[[:space:]]*(\^|>=|>)?[[:space:]]*([[:digit:]]+\.[[:digit:]]+)\.[[:digit:]]+.*$ ]]; then
+        languageVersionJson="\"''${BASH_REMATCH[2]}\""
+      elif [ "$languageConstraint" = 'any' ]; then
+        languageVersionJson='null'
+      else
+        # https://github.com/dart-lang/pub/blob/68dc2f547d0a264955c1fa551fa0a0e158046494/lib/src/language_version.dart#L106C35-L106C35
+        languageVersionJson='"2.7"'
+      fi
 
-    jq --null-input \
-      --arg name "$package" \
-      --arg path "''${packageSources["$package"]}/''${packageRoots["$package"]}" \
-      --argjson languageVersion "$languageVersionJson" \
-      '{
-        name: $name,
-        rootUri: "file://\($path)",
-        packageUri: "lib/",
-        languageVersion: $languageVersion,
-      }'
-  done | jq > "$out" --slurp '{
-    configVersion: 2,
-    generator: "nixpkgs",
-    packages: .,
-  }'
-''
+      jq --null-input \
+        --arg name "$package" \
+        --arg path "''${packageSources["$package"]}/''${packageRoots["$package"]}" \
+        --argjson languageVersion "$languageVersionJson" \
+        '{
+          name: $name,
+          rootUri: "file://\($path)",
+          packageUri: "lib/",
+          languageVersion: $languageVersion,
+        }'
+    done | jq > "$out" --slurp '{
+      configVersion: 2,
+      generator: "nixpkgs",
+      packages: .,
+    }'
+  ''

pkgs/build-support/dart/pub2nix/pubspec-lock.nix

@@ -1,23 +1,18 @@
-{ lib
-, callPackage
-, fetchurl
-, fetchgit
-, runCommand
-}:
+{ lib, callPackage, fetchurl, fetchgit, runCommand }:
 
 {
-  # The source directory of the package.
-  src
+# The source directory of the package.
+src
 
-  # The package subdirectory within src.
-  # Useful if the package references sibling packages with relative paths.
+# The package subdirectory within src.
+# Useful if the package references sibling packages with relative paths.
 , packageRoot ? "."
 
   # The pubspec.lock file, in attribute set form.
 , pubspecLock
 
-  # Hashes for Git dependencies.
-  # Pub does not record these itself, so they must be manually provided.
+# Hashes for Git dependencies.
+# Pub does not record these itself, so they must be manually provided.
 , gitHashes ? { }
 
   # Functions to generate SDK package sources.
@@ -30,11 +25,11 @@
   # source, and source files are given in an attribute set argument.
   #
   # The passthru of the source derivation should be propagated.
-, customSourceBuilders ? { }
-}:
+, customSourceBuilders ? { } }:
 
 let
-  dependencyVersions = builtins.mapAttrs (name: details: details.version) pubspecLock.packages;
+  dependencyVersions =
+    builtins.mapAttrs (name: details: details.version) pubspecLock.packages;
 
   dependencyTypes = {
     "direct main" = "main";
@@ -43,8 +38,11 @@ let
     "transitive" = "transitive";
   };
 
-  dependencies = lib.foldlAttrs
-    (dependencies: name: details: dependencies // { ${dependencyTypes.${details.dependency}} = dependencies.${dependencyTypes.${details.dependency}} ++ [ name ]; })
+  dependencies = lib.foldlAttrs (dependencies: name: details:
+    dependencies // {
+      ${dependencyTypes.${details.dependency}} =
+        dependencies.${dependencyTypes.${details.dependency}} ++ [ name ];
+    })
     (lib.genAttrs (builtins.attrValues dependencyTypes) (dependencyType: [ ]))
     pubspecLock.packages;
 
@@ -54,47 +52,56 @@ let
     let
       archive = fetchurl {
         name = "pub-${name}-${details.version}.tar.gz";
-        url = "${details.description.url}/packages/${details.description.name}/versions/${details.version}.tar.gz";
+        url =
+          "${details.description.url}/packages/${details.description.name}/versions/${details.version}.tar.gz";
         sha256 = details.description.sha256;
       };
-    in
-    runCommand "pub-${name}-${details.version}" { passthru.packageRoot = "."; } ''
+    in runCommand "pub-${name}-${details.version}" {
+      passthru.packageRoot = ".";
+    } ''
       mkdir -p "$out"
       tar xf '${archive}' -C "$out"
     '';
 
-  mkGitDependencySource = name: details: (fetchgit {
-    name = "pub-${name}-${details.version}";
-    url = details.description.url;
-    rev = details.description.resolved-ref;
-    hash = gitHashes.${name} or (throw "A Git hash is required for ${name}! Set to an empty string to obtain it.");
-  }).overrideAttrs ({ passthru ? { }, ... }: {
-    passthru = passthru // {
-      packageRoot = details.description.path;
-    };
-  });
-
-  mkPathDependencySource = name: details:
-    assert lib.assertMsg details.description.relative "Only relative paths are supported - ${name} has an absolue path!";
-    (if lib.isDerivation src then src else (runCommand "pub-${name}-${details.version}" { } ''cp -r '${src}' "$out"'')).overrideAttrs ({ passthru ? { }, ... }: {
-      passthru = passthru // {
-        packageRoot = "${packageRoot}/${details.description.path}";
-      };
+  mkGitDependencySource = name: details:
+    (fetchgit {
+      name = "pub-${name}-${details.version}";
+      url = details.description.url;
+      rev = details.description.resolved-ref;
+      hash = gitHashes.${name} or (throw
+        "A Git hash is required for ${name}! Set to an empty string to obtain it.");
+    }).overrideAttrs ({ passthru ? { }, ... }: {
+      passthru = passthru // { packageRoot = details.description.path; };
     });
 
+  mkPathDependencySource = name: details:
+    assert lib.assertMsg details.description.relative
+      "Only relative paths are supported - ${name} has an absolue path!";
+    (if lib.isDerivation src then
+      src
+    else
+      (runCommand "pub-${name}-${details.version}" { }
+        ''cp -r '${src}' "$out"'')).overrideAttrs ({ passthru ? { }, ... }: {
+          passthru = passthru // {
+            packageRoot = "${packageRoot}/${details.description.path}";
+          };
+        });
+
   mkSdkDependencySource = name: details:
-    (sdkSourceBuilders.${details.description} or (throw "No SDK source builder has been given for ${details.description}!")) name;
+    (sdkSourceBuilders.${details.description} or (throw
+      "No SDK source builder has been given for ${details.description}!")) name;
 
-  addDependencySourceUtils = dependencySource: details: dependencySource.overrideAttrs ({ passthru, ... }: {
-    passthru = passthru // {
-      inherit (details) version;
-    };
-  });
+  addDependencySourceUtils = dependencySource: details:
+    dependencySource.overrideAttrs ({ passthru, ... }: {
+      passthru = passthru // { inherit (details) version; };
+    });
 
-  sourceBuilders = callPackage ../../../development/compilers/dart/package-source-builders { } // customSourceBuilders;
+  sourceBuilders =
+    callPackage ../../../development/compilers/dart/package-source-builders { }
+    // customSourceBuilders;
 
-  dependencySources = lib.filterAttrs (name: src: src != null) (builtins.mapAttrs
-    (name: details:
+  dependencySources = lib.filterAttrs (name: src: src != null)
+    (builtins.mapAttrs (name: details:
       (sourceBuilders.${name} or ({ src, ... }: src)) {
         inherit (details) version source;
         src = ((addDependencySourceUtils (({
@@ -103,12 +110,10 @@ let
           "path" = mkPathDependencySource;
           "sdk" = mkSdkDependencySource;
         }.${details.source} name) details)) details);
-      })
-    pubspecLock.packages);
-in
-{
+      }) pubspecLock.packages);
+in {
   inherit
-    # An attribute set of dependency categories to package name lists.
+  # An attribute set of dependency categories to package name lists.
     dependencies
 
     # An attribute set of package names to their versions.

pkgs/build-support/deterministic-uname/default.nix

@@ -1,11 +1,5 @@
 # expr and script based on our lsb_release
-{ stdenv
-, lib
-, substituteAll
-, coreutils
-, getopt
-, modDirVersion ? ""
-}:
+{ stdenv, lib, substituteAll, coreutils, getopt, modDirVersion ? "" }:
 
 substituteAll {
   name = "uname";
@@ -17,7 +11,10 @@ substituteAll {
 
   inherit coreutils getopt;
 
-  uSystem = if stdenv.buildPlatform.uname.system != null then stdenv.buildPlatform.uname.system else "unknown";
+  uSystem = if stdenv.buildPlatform.uname.system != null then
+    stdenv.buildPlatform.uname.system
+  else
+    "unknown";
   inherit (stdenv.buildPlatform.uname) processor;
 
   # uname -o
@@ -25,12 +22,12 @@ substituteAll {
   # https://github.com/coreutils/coreutils/blob/7fc84d1c0f6b35231b0b4577b70aaa26bf548a7c/src/uname.c#L373-L374
   # https://stackoverflow.com/questions/61711186/where-does-host-operating-system-in-uname-c-comes-from
   # https://github.com/coreutils/gnulib/blob/master/m4/host-os.m4
-  operatingSystem =
-    if stdenv.buildPlatform.isLinux
-    then "GNU/Linux"
-    else if stdenv.buildPlatform.isDarwin
-    then "Darwin" # darwin isn't in host-os.m4 so where does this come from?
-    else "unknown";
+  operatingSystem = if stdenv.buildPlatform.isLinux then
+    "GNU/Linux"
+  else if stdenv.buildPlatform.isDarwin then
+    "Darwin" # darwin isn't in host-os.m4 so where does this come from?
+  else
+    "unknown";
 
   # in os-specific/linux module packages
   # --replace '$(shell uname -r)' "${kernel.modDirVersion}" \
@@ -38,7 +35,8 @@ substituteAll {
   modDirVersion = if modDirVersion != "" then modDirVersion else "unknown";
 
   meta = with lib; {
-    description = "Print certain system information (hardcoded with lib/system values)";
+    description =
+      "Print certain system information (hardcoded with lib/system values)";
     mainProgram = "uname";
     longDescription = ''
       This package provides a replacement for `uname` whose output depends only

pkgs/build-support/dhall/directory-to-nix.nix

@@ -1,4 +1,4 @@
-{ dhallPackages, dhallPackageToNix}:
+{ dhallPackages, dhallPackageToNix }:
 
 # `dhallDirectoryToNix is a utility function to take a directory of Dhall files
 # and read them in as a Nix expression.
@@ -11,15 +11,12 @@
 # `dhallDirectoryToNix` utility.  It is not possible to use
 # `dhallDirectoryToNix` in Nixpkgs, since the Nixpkgs Hydra doesn't allow IFD.
 
-{ src
-, # The file to import, relative to the src root directory
-  file ? "package.dhall"
-}@args:
+{ src, # The file to import, relative to the src root directory
+file ? "package.dhall" }@args:
 
 let
   generatedPkg = dhallPackages.generateDhallDirectoryPackage args;
 
   builtPkg = dhallPackages.callPackage generatedPkg { };
 
-in
-  dhallPackageToNix builtPkg
+in dhallPackageToNix builtPkg

pkgs/build-support/dhall/package-to-nix.nix

@@ -1,4 +1,3 @@
-
 # `dhallPackageToNix` is a utility function to take a Nixpkgs Dhall package
 # (created with a function like `dhallPackages.buildDhallDirectoryPackage`)
 # and read it in as a Nix expression.
@@ -14,23 +13,22 @@
 { stdenv, dhall-nix }:
 
 dhallPackage:
-  let
-    drv = stdenv.mkDerivation {
-      name = "dhall-compiled-package.nix";
+let
+  drv = stdenv.mkDerivation {
+    name = "dhall-compiled-package.nix";
 
-      buildCommand = ''
-        # Dhall requires that the cache is writable, even if it is never written to.
-        # We copy the cache from the input package to the current directory and
-        # set the cache as writable.
-        cp -r "${dhallPackage}/.cache" ./
-        export XDG_CACHE_HOME=$PWD/.cache
-        chmod -R +w ./.cache
+    buildCommand = ''
+      # Dhall requires that the cache is writable, even if it is never written to.
+      # We copy the cache from the input package to the current directory and
+      # set the cache as writable.
+      cp -r "${dhallPackage}/.cache" ./
+      export XDG_CACHE_HOME=$PWD/.cache
+      chmod -R +w ./.cache
 
-        dhall-to-nix <<< "${dhallPackage}/binary.dhall" > $out
-      '';
+      dhall-to-nix <<< "${dhallPackage}/binary.dhall" > $out
+    '';
 
-      nativeBuildInputs = [ dhall-nix ];
-    };
+    nativeBuildInputs = [ dhall-nix ];
+  };
 
-  in
-    import drv
+in import drv

pkgs/build-support/dhall/to-nix.nix

@@ -18,7 +18,7 @@
 { stdenv, dhall-nix, writeText }:
 
 let
-  dhallToNix = code :
+  dhallToNix = code:
     let
       file = writeText "dhall-expression" code;
 
@@ -32,7 +32,5 @@ let
         buildInputs = [ dhall-nix ];
       };
 
-    in
-      import drv;
-in
-  dhallToNix
+    in import drv;
+in dhallToNix

pkgs/build-support/dlang/builddubpackage/default.nix

@@ -1,124 +1,97 @@
-{
-  lib,
-  stdenv,
-  fetchurl,
-  linkFarm,
-  dub,
-  ldc,
-  removeReferencesTo,
-}:
+{ lib, stdenv, fetchurl, linkFarm, dub, ldc, removeReferencesTo, }:
 
 # See https://nixos.org/manual/nixpkgs/unstable#dlang for more detailed usage information
 
 {
-  # A lockfile generated by `dub-to-nix` from the source of the package.
-  # Can be either a path to the file, or an attrset already parsed with `lib.importJSON`.
-  dubLock,
-  # The build type to pass to `dub build` as a value for the `--build=` flag.
-  dubBuildType ? "release",
-  # The flags to pass to `dub build` and `dub test`.
-  dubFlags ? [ ],
-  # The flags to pass to `dub build`.
-  dubBuildFlags ? [ ],
-  # The flags to pass to `dub test`.
-  dubTestFlags ? [ ],
-  # The D compiler to be used by `dub`.
-  compiler ? ldc,
-  ...
-}@args:
+# A lockfile generated by `dub-to-nix` from the source of the package.
+# Can be either a path to the file, or an attrset already parsed with `lib.importJSON`.
+dubLock,
+# The build type to pass to `dub build` as a value for the `--build=` flag.
+dubBuildType ? "release",
+# The flags to pass to `dub build` and `dub test`.
+dubFlags ? [ ],
+# The flags to pass to `dub build`.
+dubBuildFlags ? [ ],
+# The flags to pass to `dub test`.
+dubTestFlags ? [ ],
+# The D compiler to be used by `dub`.
+compiler ? ldc, ... }@args:
 
 let
-  makeDubDep =
-    {
-      pname,
-      version,
-      sha256,
-    }:
-    {
-      inherit pname version;
-      src = fetchurl {
-        name = "dub-${pname}-${version}.zip";
-        url = "mirror://dub/${pname}/${version}.zip";
-        inherit sha256;
-      };
+  makeDubDep = { pname, version, sha256, }: {
+    inherit pname version;
+    src = fetchurl {
+      name = "dub-${pname}-${version}.zip";
+      url = "mirror://dub/${pname}/${version}.zip";
+      inherit sha256;
     };
+  };
 
   lockJson = if lib.isPath dubLock then lib.importJSON dubLock else dubLock;
 
-  lockedDeps = lib.mapAttrsToList (
-    pname: { version, sha256 }: makeDubDep { inherit pname version sha256; }
-  ) lockJson.dependencies;
+  lockedDeps = lib.mapAttrsToList
+    (pname: { version, sha256 }: makeDubDep { inherit pname version sha256; })
+    lockJson.dependencies;
 
   # a directory with multiple single element registries
   # one big directory with all .zip files leads to version parsing errors
   # when the name of a package is a prefix of the name of another package
-  dubRegistryBase = linkFarm "dub-registry-base" (
-    map (dep: {
-      name = "${dep.pname}/${dep.pname}-${dep.version}.zip";
-      path = dep.src;
-    }) lockedDeps
-  );
+  dubRegistryBase = linkFarm "dub-registry-base" (map (dep: {
+    name = "${dep.pname}/${dep.pname}-${dep.version}.zip";
+    path = dep.src;
+  }) lockedDeps);
 
-  combinedFlags = "--skip-registry=all --compiler=${lib.getExe compiler} ${toString dubFlags}";
-  combinedBuildFlags = "${combinedFlags} --build=${dubBuildType} ${toString dubBuildFlags}";
+  combinedFlags = "--skip-registry=all --compiler=${lib.getExe compiler} ${
+      toString dubFlags
+    }";
+  combinedBuildFlags =
+    "${combinedFlags} --build=${dubBuildType} ${toString dubBuildFlags}";
   combinedTestFlags = "${combinedFlags} ${toString dubTestFlags}";
-in
-stdenv.mkDerivation (
-  builtins.removeAttrs args [ "dubLock" ]
-  // {
-    strictDeps = args.strictDeps or true;
+in stdenv.mkDerivation (builtins.removeAttrs args [ "dubLock" ] // {
+  strictDeps = args.strictDeps or true;
 
-    nativeBuildInputs = args.nativeBuildInputs or [ ] ++ [
-      dub
-      compiler
-      removeReferencesTo
-    ];
+  nativeBuildInputs = args.nativeBuildInputs or [ ]
+    ++ [ dub compiler removeReferencesTo ];
 
-    configurePhase =
-      args.configurePhase or ''
-        runHook preConfigure
+  configurePhase = args.configurePhase or ''
+    runHook preConfigure
 
-        export DUB_HOME="$NIX_BUILD_TOP/.dub"
-        mkdir -p $DUB_HOME
+    export DUB_HOME="$NIX_BUILD_TOP/.dub"
+    mkdir -p $DUB_HOME
 
-        # register dependencies
-        ${lib.concatMapStringsSep "\n" (dep: ''
-          dub fetch ${dep.pname}@${dep.version} --cache=user --skip-registry=standard --registry=file://${dubRegistryBase}/${dep.pname}
-        '') lockedDeps}
+    # register dependencies
+    ${lib.concatMapStringsSep "\n" (dep: ''
+      dub fetch ${dep.pname}@${dep.version} --cache=user --skip-registry=standard --registry=file://${dubRegistryBase}/${dep.pname}
+    '') lockedDeps}
 
-        runHook postConfigure
-      '';
+    runHook postConfigure
+  '';
 
-    buildPhase =
-      args.buildPhase or ''
-        runHook preBuild
+  buildPhase = args.buildPhase or ''
+    runHook preBuild
 
-        dub build ${combinedBuildFlags}
+    dub build ${combinedBuildFlags}
 
-        runHook postBuild
-      '';
+    runHook postBuild
+  '';
 
-    doCheck = args.doCheck or false;
+  doCheck = args.doCheck or false;
 
-    checkPhase =
-      args.checkPhase or ''
-        runHook preCheck
+  checkPhase = args.checkPhase or ''
+    runHook preCheck
 
-        dub test ${combinedTestFlags}
+    dub test ${combinedTestFlags}
 
-        runHook postCheck
-      '';
+    runHook postCheck
+  '';
 
-    preFixup = ''
-      ${args.preFixup or ""}
+  preFixup = ''
+    ${args.preFixup or ""}
 
-      find "$out" -type f -exec remove-references-to -t ${compiler} '{}' +
-    '';
+    find "$out" -type f -exec remove-references-to -t ${compiler} '{}' +
+  '';
 
-    disallowedReferences = [ compiler ];
+  disallowedReferences = [ compiler ];
 
-    meta = {
-      platforms = dub.meta.platforms;
-    } // args.meta or { };
-  }
-)
+  meta = { platforms = dub.meta.platforms; } // args.meta or { };
+})

pkgs/build-support/dlang/dub-support.nix

@@ -1,5 +1,4 @@
-{ callPackage }:
-{
+{ callPackage }: {
   buildDubPackage = callPackage ./builddubpackage { };
   dub-to-nix = callPackage ./dub-to-nix { };
 }

pkgs/build-support/dlang/dub-to-nix/default.nix

@@ -1,19 +1,11 @@
-{
-  lib,
-  runCommand,
-  makeWrapper,
-  python3,
-  nix,
-}:
+{ lib, runCommand, makeWrapper, python3, nix, }:
 
-runCommand "dub-to-nix"
-  {
-    nativeBuildInputs = [ makeWrapper ];
-    buildInputs = [ python3 ];
-  }
-  ''
-    install -Dm755 ${./dub-to-nix.py} "$out/bin/dub-to-nix"
-    patchShebangs "$out/bin/dub-to-nix"
-    wrapProgram "$out/bin/dub-to-nix" \
-        --prefix PATH : ${lib.makeBinPath [ nix ]}
-  ''
+runCommand "dub-to-nix" {
+  nativeBuildInputs = [ makeWrapper ];
+  buildInputs = [ python3 ];
+} ''
+  install -Dm755 ${./dub-to-nix.py} "$out/bin/dub-to-nix"
+  patchShebangs "$out/bin/dub-to-nix"
+  wrapProgram "$out/bin/dub-to-nix" \
+      --prefix PATH : ${lib.makeBinPath [ nix ]}
+''

pkgs/build-support/docker/examples.nix

@@ -7,19 +7,18 @@
 #  $ nix-build '<nixpkgs>' -A dockerTools.examples.redis
 #  $ docker load < result
 
-{ pkgs, buildImage, buildLayeredImage, fakeNss, pullImage, shadowSetup, buildImageWithNixDb, pkgsCross, streamNixShellImage }:
+{ pkgs, buildImage, buildLayeredImage, fakeNss, pullImage, shadowSetup
+, buildImageWithNixDb, pkgsCross, streamNixShellImage }:
 
 let
   nixosLib = import ../../../nixos/lib {
     # Experimental features need testing too, but there's no point in warning
     # about it, so we enable the feature flag.
-    featureFlags.minimalModules = {};
+    featureFlags.minimalModules = { };
   };
   evalMinimalConfig = module: nixosLib.evalModules { modules = [ module ]; };
 
-in
-
-rec {
+in rec {
   # 1. basic example
   bash = buildImage {
     name = "bash";
@@ -53,9 +52,7 @@ rec {
     config = {
       Cmd = [ "/bin/redis-server" ];
       WorkingDir = "/data";
-      Volumes = {
-        "/data" = {};
-      };
+      Volumes = { "/data" = { }; };
     };
   };
 
@@ -82,14 +79,10 @@ rec {
     nginxWebRoot = pkgs.writeTextDir "index.html" ''
       <html><body><h1>Hello from NGINX</h1></body></html>
     '';
-  in
-  buildLayeredImage {
+  in buildLayeredImage {
     name = "nginx-container";
     tag = "latest";
-    contents = [
-      fakeNss
-      pkgs.nginx
-    ];
+    contents = [ fakeNss pkgs.nginx ];
 
     extraCommands = ''
       mkdir -p tmp/nginx_client_body
@@ -101,16 +94,15 @@ rec {
 
     config = {
       Cmd = [ "nginx" "-c" nginxConf ];
-      ExposedPorts = {
-        "${nginxPort}/tcp" = {};
-      };
+      ExposedPorts = { "${nginxPort}/tcp" = { }; };
     };
   };
 
   # 4. example of pulling an image. could be used as a base for other images
   nixFromDockerHub = pullImage {
     imageName = "nixos/nix";
-    imageDigest = "sha256:85299d86263a3059cf19f419f9d286cc9f06d3c13146a8ebbb21b3437f598357";
+    imageDigest =
+      "sha256:85299d86263a3059cf19f419f9d286cc9f06d3c13146a8ebbb21b3437f598357";
     sha256 = "19fw0n3wmddahzr20mhdqv6jkjn1kanh6n2mrr08ai53dr8ph5n7";
     finalImageTag = "2.2.1";
     finalImageName = "nix";
@@ -119,7 +111,8 @@ rec {
   # NOTE: Only use this for testing, or you'd be wasting a lot of time, network and space.
   testNixFromDockerHub = pkgs.testers.invalidateFetcherByDrvHash pullImage {
     imageName = "nixos/nix";
-    imageDigest = "sha256:85299d86263a3059cf19f419f9d286cc9f06d3c13146a8ebbb21b3437f598357";
+    imageDigest =
+      "sha256:85299d86263a3059cf19f419f9d286cc9f06d3c13146a8ebbb21b3437f598357";
     sha256 = "19fw0n3wmddahzr20mhdqv6jkjn1kanh6n2mrr08ai53dr8ph5n7";
     finalImageTag = "2.2.1";
     finalImageName = "nix";
@@ -131,13 +124,7 @@ rec {
     copyToRoot = pkgs.buildEnv {
       name = "image-root";
       pathsToLink = [ "/bin" ];
-      paths = [
-        pkgs.coreutils
-        pkgs.bash
-        pkgs.emacs
-        pkgs.vim
-        pkgs.nano
-      ];
+      paths = [ pkgs.coreutils pkgs.bash pkgs.emacs pkgs.vim pkgs.nano ];
     };
   };
 
@@ -231,9 +218,7 @@ rec {
     config = {
       Env = [ "PATH=${pkgs.coreutils}/bin/" ];
       WorkingDir = "/example-output";
-      Cmd = [
-        "${pkgs.bash}/bin/bash" "-c" "echo hello > foo; cat foo"
-      ];
+      Cmd = [ "${pkgs.bash}/bin/bash" "-c" "echo hello > foo; cat foo" ];
     };
   };
 
@@ -249,9 +234,7 @@ rec {
     config = {
       Env = [ "PATH=${pkgs.coreutils}/bin/" ];
       WorkingDir = "/example-output";
-      Cmd = [
-        "${pkgs.bash}/bin/bash" "-c" "echo hello > foo; cat foo"
-      ];
+      Cmd = [ "${pkgs.bash}/bin/bash" "-c" "echo hello > foo; cat foo" ];
     };
   };
 
@@ -312,12 +295,7 @@ rec {
   environmentVariablesParent = pkgs.dockerTools.buildImage {
     name = "parent";
     tag = "latest";
-    config = {
-      Env = [
-        "FROM_PARENT=true"
-        "LAST_LAYER=parent"
-      ];
-    };
+    config = { Env = [ "FROM_PARENT=true" "LAST_LAYER=parent" ]; };
   };
 
   environmentVariables = pkgs.dockerTools.buildImage {
@@ -329,12 +307,7 @@ rec {
       pathsToLink = [ "/bin" ];
       paths = [ pkgs.coreutils ];
     };
-    config = {
-      Env = [
-        "FROM_CHILD=true"
-        "LAST_LAYER=child"
-      ];
-    };
+    config = { Env = [ "FROM_CHILD=true" "LAST_LAYER=child" ]; };
   };
 
   environmentVariablesLayered = pkgs.dockerTools.buildLayeredImage {
@@ -342,12 +315,7 @@ rec {
     fromImage = environmentVariablesParent;
     tag = "latest";
     contents = [ pkgs.coreutils ];
-    config = {
-      Env = [
-        "FROM_CHILD=true"
-        "LAST_LAYER=child"
-      ];
-    };
+    config = { Env = [ "FROM_CHILD=true" "LAST_LAYER=child" ]; };
   };
 
   # 16. Create another layered image, for comparing layers with image 10.
@@ -371,9 +339,7 @@ rec {
   bulk-layer = pkgs.dockerTools.buildLayeredImage {
     name = "bulk-layer";
     tag = "latest";
-    contents = with pkgs; [
-      coreutils hello
-    ];
+    contents = with pkgs; [ coreutils hello ];
     maxLayers = 2;
   };
 
@@ -383,9 +349,7 @@ rec {
     name = "layered-bulk-layer";
     tag = "latest";
     fromImage = two-layered-image;
-    contents = with pkgs; [
-      coreutils hello
-    ];
+    contents = with pkgs; [ coreutils hello ];
     maxLayers = 4;
   };
 
@@ -455,8 +419,7 @@ rec {
 
   # 23. Ensure that layers are unpacked in the correct order before the
   # runAsRoot script is executed.
-  layersUnpackOrder =
-  let
+  layersUnpackOrder = let
     layerOnTopOf = parent: layerName:
       pkgs.dockerTools.buildImage {
         name = "layers-unpack-order-${layerName}";
@@ -475,7 +438,7 @@ rec {
     # When executing the runAsRoot script when building layer C, if layer B is
     # not unpacked on top of layer A, the contents of /layer-order will not be
     # "ABC".
-    layerA = layerOnTopOf null   "a";
+    layerA = layerOnTopOf null "a";
     layerB = layerOnTopOf layerA "b";
     layerC = layerOnTopOf layerB "c";
   in layerC;
@@ -532,47 +495,42 @@ rec {
   };
 
   # buildLayeredImage with non-root user
-  bashLayeredWithUser =
-  let
-    nonRootShadowSetup = { user, uid, gid ? uid }: with pkgs; [
-      (
-      writeTextDir "etc/shadow" ''
-        root:!x:::::::
-        ${user}:!:::::::
-      ''
-      )
-      (
-      writeTextDir "etc/passwd" ''
-        root:x:0:0::/root:${runtimeShell}
-        ${user}:x:${toString uid}:${toString gid}::/home/${user}:
-      ''
-      )
-      (
-      writeTextDir "etc/group" ''
-        root:x:0:
-        ${user}:x:${toString gid}:
-      ''
-      )
-      (
-      writeTextDir "etc/gshadow" ''
-        root:x::
-        ${user}:x::
-      ''
-      )
-    ];
-  in
-    pkgs.dockerTools.buildLayeredImage {
-      name = "bash-layered-with-user";
-      tag = "latest";
-      contents = [ pkgs.bash pkgs.coreutils ] ++ nonRootShadowSetup { uid = 999; user = "somebody"; };
+  bashLayeredWithUser = let
+    nonRootShadowSetup = { user, uid, gid ? uid }:
+      with pkgs; [
+        (writeTextDir "etc/shadow" ''
+          root:!x:::::::
+          ${user}:!:::::::
+        '')
+        (writeTextDir "etc/passwd" ''
+          root:x:0:0::/root:${runtimeShell}
+          ${user}:x:${toString uid}:${toString gid}::/home/${user}:
+        '')
+        (writeTextDir "etc/group" ''
+          root:x:0:
+          ${user}:x:${toString gid}:
+        '')
+        (writeTextDir "etc/gshadow" ''
+          root:x::
+          ${user}:x::
+        '')
+      ];
+  in pkgs.dockerTools.buildLayeredImage {
+    name = "bash-layered-with-user";
+    tag = "latest";
+    contents = [ pkgs.bash pkgs.coreutils ] ++ nonRootShadowSetup {
+      uid = 999;
+      user = "somebody";
     };
+  };
 
   # basic example, with cross compilation
   cross = let
     # Cross compile for x86_64 if on aarch64
-    crossPkgs =
-      if pkgs.stdenv.hostPlatform.system == "aarch64-linux" then pkgsCross.gnu64
-      else pkgsCross.aarch64-multiplatform;
+    crossPkgs = if pkgs.stdenv.hostPlatform.system == "aarch64-linux" then
+      pkgsCross.gnu64
+    else
+      pkgsCross.aarch64-multiplatform;
   in crossPkgs.dockerTools.buildImage {
     name = "hello-cross";
     tag = "latest";
@@ -584,16 +542,16 @@ rec {
   };
 
   # layered image where a store path is itself a symlink
-  layeredStoreSymlink =
-  let
+  layeredStoreSymlink = let
     target = pkgs.writeTextDir "dir/target" "Content doesn't matter.";
-    symlink = pkgs.runCommand "symlink" {} "ln -s ${target} $out";
-  in
-    pkgs.dockerTools.buildLayeredImage {
-      name = "layeredstoresymlink";
-      tag = "latest";
-      contents = [ pkgs.bash symlink ];
-    } // { passthru = { inherit symlink; }; };
+    symlink = pkgs.runCommand "symlink" { } "ln -s ${target} $out";
+  in pkgs.dockerTools.buildLayeredImage {
+    name = "layeredstoresymlink";
+    tag = "latest";
+    contents = [ pkgs.bash symlink ];
+  } // {
+    passthru = { inherit symlink; };
+  };
 
   # image with registry/ prefix
   prefixedImage = pkgs.dockerTools.buildImage {
@@ -613,44 +571,34 @@ rec {
   layeredImageWithFakeRootCommands = pkgs.dockerTools.buildLayeredImage {
     name = "layered-image-with-fake-root-commands";
     tag = "latest";
-    contents = [
-      pkgs.pkgsStatic.busybox
-    ];
+    contents = [ pkgs.pkgsStatic.busybox ];
     fakeRootCommands = ''
       mkdir -p ./home/alice
       chown 1000 ./home/alice
-      ln -s ${pkgs.hello.overrideAttrs (o: {
-        # A unique `hello` to make sure that it isn't included via another mechanism by accident.
-        configureFlags = o.configureFlags or [] ++ [ " --program-prefix=layeredImageWithFakeRootCommands-" ];
-        doCheck = false;
-      })} ./hello
+      ln -s ${
+        pkgs.hello.overrideAttrs (o: {
+          # A unique `hello` to make sure that it isn't included via another mechanism by accident.
+          configureFlags = o.configureFlags or [ ]
+            ++ [ " --program-prefix=layeredImageWithFakeRootCommands-" ];
+          doCheck = false;
+        })
+      } ./hello
     '';
   };
 
   # tarball consisting of both bash and redis images
-  mergedBashAndRedis = pkgs.dockerTools.mergeImages [
-    bash
-    redis
-  ];
+  mergedBashAndRedis = pkgs.dockerTools.mergeImages [ bash redis ];
 
   # tarball consisting of bash (without tag) and redis images
-  mergedBashNoTagAndRedis = pkgs.dockerTools.mergeImages [
-    bashNoTag
-    redis
-  ];
+  mergedBashNoTagAndRedis = pkgs.dockerTools.mergeImages [ bashNoTag redis ];
 
   # tarball consisting of bash and layered image with different owner of the
   # /home/alice directory
-  mergedBashFakeRoot = pkgs.dockerTools.mergeImages [
-    bash
-    layeredImageWithFakeRootCommands
-  ];
+  mergedBashFakeRoot =
+    pkgs.dockerTools.mergeImages [ bash layeredImageWithFakeRootCommands ];
 
-  mergeVaryingCompressor = pkgs.dockerTools.mergeImages [
-    redis
-    bashUncompressed
-    bashZstdCompressed
-  ];
+  mergeVaryingCompressor =
+    pkgs.dockerTools.mergeImages [ redis bashUncompressed bashZstdCompressed ];
 
   helloOnRoot = pkgs.dockerTools.streamLayeredImage {
     name = "hello";
@@ -691,36 +639,32 @@ rec {
     enableFakechroot = true;
   };
 
-  etc =
-    let
-      inherit (pkgs) lib;
-      nixosCore = (evalMinimalConfig ({ config, ... }: {
-        imports = [
-          pkgs.pkgsModule
-          ../../../nixos/modules/system/etc/etc.nix
-        ];
-        environment.etc."some-config-file" = {
-          text = ''
-            127.0.0.1 localhost
-            ::1 localhost
-          '';
-          # For executables:
-          # mode = "0755";
-        };
-      }));
-    in pkgs.dockerTools.streamLayeredImage {
-      name = "etc";
-      tag = "latest";
-      enableFakechroot = true;
-      fakeRootCommands = ''
-        mkdir -p /etc
-        ${nixosCore.config.system.build.etcActivationCommands}
-      '';
-      config.Cmd = pkgs.writeScript "etc-cmd" ''
-        #!${pkgs.busybox}/bin/sh
-        ${pkgs.busybox}/bin/cat /etc/some-config-file
-      '';
-    };
+  etc = let
+    inherit (pkgs) lib;
+    nixosCore = (evalMinimalConfig ({ config, ... }: {
+      imports = [ pkgs.pkgsModule ../../../nixos/modules/system/etc/etc.nix ];
+      environment.etc."some-config-file" = {
+        text = ''
+          127.0.0.1 localhost
+          ::1 localhost
+        '';
+        # For executables:
+        # mode = "0755";
+      };
+    }));
+  in pkgs.dockerTools.streamLayeredImage {
+    name = "etc";
+    tag = "latest";
+    enableFakechroot = true;
+    fakeRootCommands = ''
+      mkdir -p /etc
+      ${nixosCore.config.system.build.etcActivationCommands}
+    '';
+    config.Cmd = pkgs.writeScript "etc-cmd" ''
+      #!${pkgs.busybox}/bin/sh
+      ${pkgs.busybox}/bin/cat /etc/some-config-file
+    '';
+  };
 
   # Example export of the bash image
   exportBash = pkgs.dockerTools.exportImage { fromImage = bash; };
@@ -774,14 +718,10 @@ rec {
 
     copyToRoot = pkgs.buildEnv {
       name = "image-with-certs-root";
-      paths = [
-        pkgs.coreutils
-        pkgs.dockerTools.caCertificates
-      ];
+      paths = [ pkgs.coreutils pkgs.dockerTools.caCertificates ];
     };
 
-    config = {
-    };
+    config = { };
   };
 
   nix-shell-basic = streamNixShellImage {
@@ -804,11 +744,7 @@ rec {
   nix-shell-inputs = streamNixShellImage {
     name = "nix-shell-inputs";
     tag = "latest";
-    drv = pkgs.mkShell {
-      nativeBuildInputs = [
-        pkgs.hello
-      ];
-    };
+    drv = pkgs.mkShell { nativeBuildInputs = [ pkgs.hello ]; };
     command = ''
       hello
     '';
@@ -829,7 +765,7 @@ rec {
   nix-shell-run = streamNixShellImage {
     name = "nix-shell-run";
     tag = "latest";
-    drv = pkgs.mkShell {};
+    drv = pkgs.mkShell { };
     run = ''
       case "$-" in
       *i*) echo This shell is interactive ;;
@@ -841,7 +777,7 @@ rec {
   nix-shell-command = streamNixShellImage {
     name = "nix-shell-command";
     tag = "latest";
-    drv = pkgs.mkShell {};
+    drv = pkgs.mkShell { };
     command = ''
       case "$-" in
       *i*) echo This shell is interactive ;;
@@ -853,7 +789,7 @@ rec {
   nix-shell-writable-home = streamNixShellImage {
     name = "nix-shell-writable-home";
     tag = "latest";
-    drv = pkgs.mkShell {};
+    drv = pkgs.mkShell { };
     run = ''
       if [[ "$HOME" != "$(eval "echo ~$(whoami)")" ]]; then
         echo "\$HOME ($HOME) is not the same as ~\$(whoami) ($(eval "echo ~$(whoami)"))"
@@ -871,7 +807,7 @@ rec {
   nix-shell-nonexistent-home = streamNixShellImage {
     name = "nix-shell-nonexistent-home";
     tag = "latest";
-    drv = pkgs.mkShell {};
+    drv = pkgs.mkShell { };
     homeDirectory = "/homeless-shelter";
     run = ''
       if [[ "$HOME" != "$(eval "echo ~$(whoami)")" ]]; then

pkgs/build-support/docker/nix-prefetch-docker.nix

@@ -17,7 +17,8 @@ stdenv.mkDerivation {
   preferLocalBuild = true;
 
   meta = with lib; {
-    description = "Script used to obtain source hashes for dockerTools.pullImage";
+    description =
+      "Script used to obtain source hashes for dockerTools.pullImage";
     mainProgram = "nix-prefetch-docker";
     maintainers = with maintainers; [ offline ];
     platforms = platforms.unix;

pkgs/build-support/docker/tarsum.nix

@@ -32,11 +32,7 @@ stdenv.mkDerivation {
     runHook postInstall
   '';
 
-  passthru = {
-    tests = {
-      dockerTools = nixosTests.docker-tools;
-    };
-  };
+  passthru = { tests = { dockerTools = nixosTests.docker-tools; }; };
 
   meta.platforms = go.meta.platforms;
   meta.mainProgram = "tarsum";

pkgs/build-support/dotnet/build-dotnet-global-tool/default.nix

@@ -1,20 +1,17 @@
 { buildDotnetModule, emptyDirectory, mkNugetDeps, dotnet-sdk }:
 
-{ pname
-, version
-  # Name of the nuget package to install, if different from pname
+{ pname, version
+# Name of the nuget package to install, if different from pname
 , nugetName ? pname
   # Hash of the nuget package to install, will be given on first build
 , nugetSha256 ? ""
   # Additional nuget deps needed by the tool package
-, nugetDeps ? (_: [])
-  # Executables to wrap into `$out/bin`, same as in `buildDotnetModule`, but with
-  # a default of `pname` instead of null, to avoid auto-wrapping everything
+, nugetDeps ? (_: [ ])
+# Executables to wrap into `$out/bin`, same as in `buildDotnetModule`, but with
+# a default of `pname` instead of null, to avoid auto-wrapping everything
 , executables ? pname
   # The dotnet runtime to use, dotnet tools need a full SDK to function
-, dotnet-runtime ? dotnet-sdk
-, ...
-} @ args:
+, dotnet-runtime ? dotnet-sdk, ... }@args:
 
 buildDotnetModule (args // {
   inherit pname version dotnet-runtime executables;
@@ -23,9 +20,14 @@ buildDotnetModule (args // {
 
   nugetDeps = mkNugetDeps {
     name = pname;
-    nugetDeps = { fetchNuGet }: [
-      (fetchNuGet { pname = nugetName; inherit version; sha256 = nugetSha256; })
-    ] ++ (nugetDeps fetchNuGet);
+    nugetDeps = { fetchNuGet }:
+      [
+        (fetchNuGet {
+          pname = nugetName;
+          inherit version;
+          sha256 = nugetSha256;
+        })
+      ] ++ (nugetDeps fetchNuGet);
   };
 
   projectFile = "";

pkgs/build-support/dotnet/build-dotnet-module/default.nix

@@ -1,24 +1,9 @@
-{ lib
-, stdenvNoCC
-, callPackage
-, writeShellScript
-, srcOnly
-, linkFarmFromDrvs
-, symlinkJoin
-, makeWrapper
-, dotnetCorePackages
-, mkNugetSource
-, mkNugetDeps
-, nuget-to-nix
-, cacert
-, coreutils
-, runtimeShellPackage
-}:
+{ lib, stdenvNoCC, callPackage, writeShellScript, srcOnly, linkFarmFromDrvs
+, symlinkJoin, makeWrapper, dotnetCorePackages, mkNugetSource, mkNugetDeps
+, nuget-to-nix, cacert, coreutils, runtimeShellPackage }:
 
-{ name ? "${args.pname}-${args.version}"
-, pname ? name
-, enableParallelBuilding ? true
-, doCheck ? false
+{ name ? "${args.pname}-${args.version}", pname ? name
+, enableParallelBuilding ? true, doCheck ? false
   # Flags to pass to `makeWrapper`. This is done to avoid double wrapping.
 , makeWrapperArgs ? [ ]
 
@@ -85,38 +70,41 @@
   # The dotnet runtime to use.
 , dotnet-runtime ? dotnetCorePackages.runtime_6_0
   # The dotnet SDK to run tests against. This can differentiate from the SDK compiled against.
-, dotnet-test-sdk ? dotnet-sdk
-, ...
-} @ args:
+, dotnet-test-sdk ? dotnet-sdk, ... }@args:
 
 let
-  platforms =
-    if args ? meta.platforms
-    then lib.intersectLists args.meta.platforms dotnet-sdk.meta.platforms
-    else dotnet-sdk.meta.platforms;
+  platforms = if args ? meta.platforms then
+    lib.intersectLists args.meta.platforms dotnet-sdk.meta.platforms
+  else
+    dotnet-sdk.meta.platforms;
 
   inherit (callPackage ./hooks {
-    inherit dotnet-sdk dotnet-test-sdk disabledTests nuget-source dotnet-runtime runtimeDeps buildType;
-    runtimeId =
-      if runtimeId != null
-      then runtimeId
-      else dotnetCorePackages.systemToDotnetRid stdenvNoCC.targetPlatform.system;
-  }) dotnetConfigureHook dotnetBuildHook dotnetCheckHook dotnetInstallHook dotnetFixupHook;
+    inherit dotnet-sdk dotnet-test-sdk disabledTests nuget-source dotnet-runtime
+      runtimeDeps buildType;
+    runtimeId = if runtimeId != null then
+      runtimeId
+    else
+      dotnetCorePackages.systemToDotnetRid stdenvNoCC.targetPlatform.system;
+  })
+    dotnetConfigureHook dotnetBuildHook dotnetCheckHook dotnetInstallHook
+    dotnetFixupHook;
 
-  localDeps =
-    if (projectReferences != [ ])
-    then linkFarmFromDrvs "${name}-project-references" projectReferences
-    else null;
+  localDeps = if (projectReferences != [ ]) then
+    linkFarmFromDrvs "${name}-project-references" projectReferences
+  else
+    null;
 
-  _nugetDeps =
-    if (nugetDeps != null) then
-      if lib.isDerivation nugetDeps
-      then nugetDeps
-      else mkNugetDeps {
+  _nugetDeps = if (nugetDeps != null) then
+    if lib.isDerivation nugetDeps then
+      nugetDeps
+    else
+      mkNugetDeps {
         inherit name;
         sourceFile = nugetDeps;
       }
-    else throw "Defining the `nugetDeps` attribute is required, as to lock the NuGet dependencies. This file can be generated by running the `passthru.fetch-deps` script.";
+  else
+    throw
+    "Defining the `nugetDeps` attribute is required, as to lock the NuGet dependencies. This file can be generated by running the `passthru.fetch-deps` script.";
 
   # contains the actual package dependencies
   dependenciesSource = mkNugetSource {
@@ -131,7 +119,8 @@ let
   sdkDeps = lib.lists.flatten [ dotnet-sdk.packages ];
 
   sdkSource = let
-    version = dotnet-sdk.version or (lib.concatStringsSep "-" dotnet-sdk.versions);
+    version =
+      dotnet-sdk.version or (lib.concatStringsSep "-" dotnet-sdk.versions);
   in mkNugetSource {
     name = "dotnet-sdk-${version}-source";
     deps = sdkDeps;
@@ -143,8 +132,7 @@ let
   };
 
   nugetDepsFile = _nugetDeps.sourceFile;
-in
-stdenvNoCC.mkDerivation (args // {
+in stdenvNoCC.mkDerivation (args // {
   nativeBuildInputs = args.nativeBuildInputs or [ ] ++ [
     dotnetConfigureHook
     dotnetBuildHook
@@ -159,23 +147,29 @@ stdenvNoCC.mkDerivation (args // {
 
   # Parse the version attr into a format acceptable for the Version msbuild property
   # The actual version attr is saved in InformationalVersion, which accepts an arbitrary string
-  versionForDotnet = if !(lib.hasAttr "version" args) || args.version == null
-  then null else let
-    components = lib.pipe args.version [
-      lib.splitVersion
-      (lib.filter (x: (lib.strings.match "[0-9]+" x) != null))
-      (lib.filter (x: (lib.toIntBase10 x) < 65535)) # one version component in dotnet has to fit in 16 bits
-    ];
-  in if (lib.length components) == 0
-  then null
-  else lib.concatStringsSep "." ((lib.take 4 components)
-    ++ (if (lib.length components) < 4
-       then lib.replicate (4 - (lib.length components)) "0"
-       else [ ]));
+  versionForDotnet =
+    if !(lib.hasAttr "version" args) || args.version == null then
+      null
+    else
+      let
+        components = lib.pipe args.version [
+          lib.splitVersion
+          (lib.filter (x: (lib.strings.match "[0-9]+" x) != null))
+          (lib.filter (x:
+            (lib.toIntBase10 x)
+            < 65535)) # one version component in dotnet has to fit in 16 bits
+        ];
+      in if (lib.length components) == 0 then
+        null
+      else
+        lib.concatStringsSep "." ((lib.take 4 components)
+          ++ (if (lib.length components) < 4 then
+            lib.replicate (4 - (lib.length components)) "0"
+          else
+            [ ]));
 
-  makeWrapperArgs = args.makeWrapperArgs or [ ] ++ [
-    "--prefix LD_LIBRARY_PATH : ${dotnet-sdk.icu}/lib"
-  ];
+  makeWrapperArgs = args.makeWrapperArgs or [ ]
+    ++ [ "--prefix LD_LIBRARY_PATH : ${dotnet-sdk.icu}/lib" ];
 
   # Stripping breaks the executable
   dontStrip = args.dontStrip or true;
@@ -188,136 +182,148 @@ stdenvNoCC.mkDerivation (args // {
   passthru = {
     inherit nuget-source;
   } // lib.optionalAttrs (!lib.isDerivation nugetDeps) {
-    fetch-deps =
-      let
-        flags = dotnetFlags ++ dotnetRestoreFlags;
-        runtimeIds =
-          if runtimeId != null
-          then [ runtimeId ]
-          else map (system: dotnetCorePackages.systemToDotnetRid system) platforms;
-        defaultDepsFile =
-          # Wire in the nugetDeps file such that running the script with no args
-          # runs it agains the correct deps file by default.
-          # Note that toString is necessary here as it results in the path at
-          # eval time (i.e. to the file in your local Nixpkgs checkout) rather
-          # than the Nix store path of the path after it's been imported.
-          if lib.isPath nugetDepsFile && !lib.hasPrefix "${builtins.storeDir}/" (toString nugetDepsFile)
-          then toString nugetDepsFile
-          else ''$(mktemp -t "${pname}-deps-XXXXXX.nix")'';
-      in
-      writeShellScript "fetch-${pname}-deps" ''
-        set -euo pipefail
+    fetch-deps = let
+      flags = dotnetFlags ++ dotnetRestoreFlags;
+      runtimeIds = if runtimeId != null then
+        [ runtimeId ]
+      else
+        map (system: dotnetCorePackages.systemToDotnetRid system) platforms;
+      defaultDepsFile =
+        # Wire in the nugetDeps file such that running the script with no args
+        # runs it agains the correct deps file by default.
+        # Note that toString is necessary here as it results in the path at
+        # eval time (i.e. to the file in your local Nixpkgs checkout) rather
+        # than the Nix store path of the path after it's been imported.
+        if lib.isPath nugetDepsFile
+        && !lib.hasPrefix "${builtins.storeDir}/" (toString nugetDepsFile) then
+          toString nugetDepsFile
+        else
+          ''$(mktemp -t "${pname}-deps-XXXXXX.nix")'';
+    in writeShellScript "fetch-${pname}-deps" ''
+      set -euo pipefail
 
-        export PATH="${lib.makeBinPath [ coreutils runtimeShellPackage dotnet-sdk (nuget-to-nix.override { inherit dotnet-sdk; }) ]}"
+      export PATH="${
+        lib.makeBinPath [
+          coreutils
+          runtimeShellPackage
+          dotnet-sdk
+          (nuget-to-nix.override { inherit dotnet-sdk; })
+        ]
+      }"
 
-        for arg in "$@"; do
-            case "$arg" in
-                --keep-sources|-k)
-                    keepSources=1
-                    shift
-                    ;;
-                --help|-h)
-                    echo "usage: $0 [--keep-sources] [--help] <output path>"
-                    echo "    <output path>   The path to write the lockfile to. A temporary file is used if this is not set"
-                    echo "    --keep-sources  Dont remove temporary directories upon exit, useful for debugging"
-                    echo "    --help          Show this help message"
-                    exit
-                    ;;
-            esac
-        done
+      for arg in "$@"; do
+          case "$arg" in
+              --keep-sources|-k)
+                  keepSources=1
+                  shift
+                  ;;
+              --help|-h)
+                  echo "usage: $0 [--keep-sources] [--help] <output path>"
+                  echo "    <output path>   The path to write the lockfile to. A temporary file is used if this is not set"
+                  echo "    --keep-sources  Dont remove temporary directories upon exit, useful for debugging"
+                  echo "    --help          Show this help message"
+                  exit
+                  ;;
+          esac
+      done
 
-        if [[ ''${TMPDIR:-} == /run/user/* ]]; then
-           # /run/user is usually a tmpfs in RAM, which may be too small
-           # to store all downloaded dotnet packages
-           unset TMPDIR
-        fi
+      if [[ ''${TMPDIR:-} == /run/user/* ]]; then
+         # /run/user is usually a tmpfs in RAM, which may be too small
+         # to store all downloaded dotnet packages
+         unset TMPDIR
+      fi
 
-        export tmp=$(mktemp -td "deps-${pname}-XXXXXX")
-        HOME=$tmp/home
+      export tmp=$(mktemp -td "deps-${pname}-XXXXXX")
+      HOME=$tmp/home
 
-        exitTrap() {
-            test -n "''${ranTrap-}" && return
-            ranTrap=1
+      exitTrap() {
+          test -n "''${ranTrap-}" && return
+          ranTrap=1
 
-            if test -n "''${keepSources-}"; then
-                echo -e "Path to the source: $tmp/src\nPath to the fake home: $tmp/home"
-            else
-                rm -rf "$tmp"
-            fi
+          if test -n "''${keepSources-}"; then
+              echo -e "Path to the source: $tmp/src\nPath to the fake home: $tmp/home"
+          else
+              rm -rf "$tmp"
+          fi
 
-            # Since mktemp is used this will be empty if the script didnt succesfully complete
-            if ! test -s "$depsFile"; then
-              rm -rf "$depsFile"
-            fi
-        }
+          # Since mktemp is used this will be empty if the script didnt succesfully complete
+          if ! test -s "$depsFile"; then
+            rm -rf "$depsFile"
+          fi
+      }
 
-        trap exitTrap EXIT INT TERM
+      trap exitTrap EXIT INT TERM
 
-        dotnetRestore() {
-            local -r project="''${1-}"
-            local -r rid="$2"
+      dotnetRestore() {
+          local -r project="''${1-}"
+          local -r rid="$2"
 
-            dotnet restore ''${project-} \
-                -p:ContinuousIntegrationBuild=true \
-                -p:Deterministic=true \
-                --packages "$tmp/nuget_pkgs" \
-                --runtime "$rid" \
-                --no-cache \
-                --force \
-                ${lib.optionalString (!enableParallelBuilding) "--disable-parallel"} \
-                ${lib.optionalString (flags != []) (toString flags)}
-        }
+          dotnet restore ''${project-} \
+              -p:ContinuousIntegrationBuild=true \
+              -p:Deterministic=true \
+              --packages "$tmp/nuget_pkgs" \
+              --runtime "$rid" \
+              --no-cache \
+              --force \
+              ${
+                lib.optionalString (!enableParallelBuilding)
+                "--disable-parallel"
+              } \
+              ${lib.optionalString (flags != [ ]) (toString flags)}
+      }
 
-        declare -a projectFiles=( ${toString (lib.toList projectFile)} )
-        declare -a testProjectFiles=( ${toString (lib.toList testProjectFile)} )
+      declare -a projectFiles=( ${toString (lib.toList projectFile)} )
+      declare -a testProjectFiles=( ${toString (lib.toList testProjectFile)} )
 
-        export DOTNET_NOLOGO=1
-        export DOTNET_CLI_TELEMETRY_OPTOUT=1
+      export DOTNET_NOLOGO=1
+      export DOTNET_CLI_TELEMETRY_OPTOUT=1
 
-        depsFile=$(realpath "''${1:-${defaultDepsFile}}")
-        echo Will write lockfile to "$depsFile"
-        mkdir -p "$tmp/nuget_pkgs"
+      depsFile=$(realpath "''${1:-${defaultDepsFile}}")
+      echo Will write lockfile to "$depsFile"
+      mkdir -p "$tmp/nuget_pkgs"
 
-        storeSrc="${srcOnly args}"
-        src=$tmp/src
-        cp -rT "$storeSrc" "$src"
-        chmod -R +w "$src"
+      storeSrc="${srcOnly args}"
+      src=$tmp/src
+      cp -rT "$storeSrc" "$src"
+      chmod -R +w "$src"
 
-        cd "$src"
-        echo "Restoring project..."
+      cd "$src"
+      echo "Restoring project..."
 
-        ${dotnet-sdk}/bin/dotnet tool restore
-        cp -r $HOME/.nuget/packages/* $tmp/nuget_pkgs || true
+      ${dotnet-sdk}/bin/dotnet tool restore
+      cp -r $HOME/.nuget/packages/* $tmp/nuget_pkgs || true
 
-        for rid in "${lib.concatStringsSep "\" \"" runtimeIds}"; do
-            (( ''${#projectFiles[@]} == 0 )) && dotnetRestore "" "$rid"
+      for rid in "${lib.concatStringsSep ''" "'' runtimeIds}"; do
+          (( ''${#projectFiles[@]} == 0 )) && dotnetRestore "" "$rid"
 
-            for project in ''${projectFiles[@]-} ''${testProjectFiles[@]-}; do
-                dotnetRestore "$project" "$rid"
-            done
-        done
-        # Second copy, makes sure packages restored by ie. paket are included
-        cp -r $HOME/.nuget/packages/* $tmp/nuget_pkgs || true
+          for project in ''${projectFiles[@]-} ''${testProjectFiles[@]-}; do
+              dotnetRestore "$project" "$rid"
+          done
+      done
+      # Second copy, makes sure packages restored by ie. paket are included
+      cp -r $HOME/.nuget/packages/* $tmp/nuget_pkgs || true
 
-        echo "Succesfully restored project"
+      echo "Succesfully restored project"
 
-        echo "Writing lockfile..."
+      echo "Writing lockfile..."
 
-        excluded_sources="${lib.concatStringsSep " " sdkDeps}"
-        for excluded_source in ''${excluded_sources[@]}; do
-          ls "$excluded_source" >> "$tmp/excluded_list"
-        done
-        tmpFile="$tmp"/deps.nix
-        echo -e "# This file was automatically generated by passthru.fetch-deps.\n# Please dont edit it manually, your changes might get overwritten!\n" > "$tmpFile"
-        nuget-to-nix "$tmp/nuget_pkgs" "$tmp/excluded_list" >> "$tmpFile"
-        mv "$tmpFile" "$depsFile"
-        echo "Succesfully wrote lockfile to $depsFile"
-      '';
+      excluded_sources="${lib.concatStringsSep " " sdkDeps}"
+      for excluded_source in ''${excluded_sources[@]}; do
+        ls "$excluded_source" >> "$tmp/excluded_list"
+      done
+      tmpFile="$tmp"/deps.nix
+      echo -e "# This file was automatically generated by passthru.fetch-deps.\n# Please dont edit it manually, your changes might get overwritten!\n" > "$tmpFile"
+      nuget-to-nix "$tmp/nuget_pkgs" "$tmp/excluded_list" >> "$tmpFile"
+      mv "$tmpFile" "$depsFile"
+      echo "Succesfully wrote lockfile to $depsFile"
+    '';
   } // args.passthru or { };
 
   meta = (args.meta or { }) // { inherit platforms; };
 }
-  # ICU tries to unconditionally load files from /usr/share/icu on Darwin, which makes builds fail
-  # in the sandbox, so disable ICU on Darwin. This, as far as I know, shouldn't cause any built packages
-  # to behave differently, just the dotnet build tool.
-  // lib.optionalAttrs stdenvNoCC.isDarwin { DOTNET_SYSTEM_GLOBALIZATION_INVARIANT = 1; })
+# ICU tries to unconditionally load files from /usr/share/icu on Darwin, which makes builds fail
+# in the sandbox, so disable ICU on Darwin. This, as far as I know, shouldn't cause any built packages
+# to behave differently, just the dotnet build tool.
+  // lib.optionalAttrs stdenvNoCC.isDarwin {
+    DOTNET_SYSTEM_GLOBALIZATION_INVARIANT = 1;
+  })

pkgs/build-support/dotnet/build-dotnet-module/hooks/default.nix

@@ -1,27 +1,10 @@
-{ lib
-, stdenv
-, which
-, coreutils
-, zlib
-, openssl
-, callPackage
-, makeSetupHook
-, makeWrapper
-, dotnet-sdk
-, dotnet-test-sdk
-, disabledTests
-, nuget-source
-, dotnet-runtime
-, runtimeDeps
-, buildType
-, runtimeId
-}:
+{ lib, stdenv, which, coreutils, zlib, openssl, callPackage, makeSetupHook
+, makeWrapper, dotnet-sdk, dotnet-test-sdk, disabledTests, nuget-source
+, dotnet-runtime, runtimeDeps, buildType, runtimeId }:
 assert (builtins.isString runtimeId);
 
-let
-  libraryPath = lib.makeLibraryPath runtimeDeps;
-in
-{
+let libraryPath = lib.makeLibraryPath runtimeDeps;
+in {
   dotnetConfigureHook = callPackage ({ }:
     makeSetupHook {
       name = "dotnet-configure-hook";
@@ -44,9 +27,7 @@ in
     makeSetupHook {
       name = "dotnet-build-hook";
       propagatedBuildInputs = [ dotnet-sdk ];
-      substitutions = {
-        inherit buildType runtimeId;
-      };
+      substitutions = { inherit buildType runtimeId; };
     } ./dotnet-build-hook.sh) { };
 
   dotnetCheckHook = callPackage ({ }:
@@ -55,12 +36,12 @@ in
       propagatedBuildInputs = [ dotnet-test-sdk ];
       substitutions = {
         inherit buildType runtimeId libraryPath;
-        disabledTests = lib.optionalString (disabledTests != [])
-          (let
-            escapedNames = lib.lists.map (n: lib.replaceStrings [","] ["%2C"] n) disabledTests;
-            filters = lib.lists.map (n: "FullyQualifiedName!=${n}") escapedNames;
-          in
-          "${lib.concatStringsSep "&" filters}");
+        disabledTests = lib.optionalString (disabledTests != [ ]) (let
+          escapedNames =
+            lib.lists.map (n: lib.replaceStrings [ "," ] [ "%2C" ] n)
+            disabledTests;
+          filters = lib.lists.map (n: "FullyQualifiedName!=${n}") escapedNames;
+        in "${lib.concatStringsSep "&" filters}");
       };
     } ./dotnet-check-hook.sh) { };
 
@@ -68,9 +49,7 @@ in
     makeSetupHook {
       name = "dotnet-install-hook";
       propagatedBuildInputs = [ dotnet-sdk ];
-      substitutions = {
-        inherit buildType runtimeId;
-      };
+      substitutions = { inherit buildType runtimeId; };
     } ./dotnet-install-hook.sh) { };
 
   dotnetFixupHook = callPackage ({ }:

pkgs/build-support/dotnet/build-dotnet-package/default.nix

@@ -1,116 +1,108 @@
 { stdenv, lib, makeWrapper, pkg-config, mono, dotnetbuildhelpers }:
 
-attrsOrig @
-{ pname
-, version
-, nativeBuildInputs ? []
-, xBuildFiles ? [ ]
+attrsOrig@{ pname, version, nativeBuildInputs ? [ ], xBuildFiles ? [ ]
 , xBuildFlags ? [ "/p:Configuration=Release" ]
-, outputFiles ? [ "bin/Release/*" ]
-, dllFiles ? [ "*.dll" ]
-, exeFiles ? [ "*.exe" ]
+, outputFiles ? [ "bin/Release/*" ], dllFiles ? [ "*.dll" ], exeFiles ? [
+  "*.exe"
+]
 # Additional arguments to pass to the makeWrapper function, which wraps
 # generated binaries.
-, makeWrapperArgs ? [ ]
-, ... }:
-  let
-    arrayToShell = (a: toString (map (lib.escape (lib.stringToCharacters "\\ ';$`()|<>\t") ) a));
+, makeWrapperArgs ? [ ], ... }:
+let
+  arrayToShell =
+    (a: toString (map (lib.escape (lib.stringToCharacters "\\ ';$`()|<>	")) a));
 
-    attrs = {
-      inherit pname version;
+  attrs = {
+    inherit pname version;
 
-      nativeBuildInputs = [
-        pkg-config
-        makeWrapper
-        dotnetbuildhelpers
-        mono
-      ] ++ nativeBuildInputs;
+    nativeBuildInputs = [ pkg-config makeWrapper dotnetbuildhelpers mono ]
+      ++ nativeBuildInputs;
 
-      configurePhase = ''
-        runHook preConfigure
+    configurePhase = ''
+      runHook preConfigure
 
-        [ -z "''${dontPlacateNuget-}" ] && placate-nuget.sh
-        [ -z "''${dontPlacatePaket-}" ] && placate-paket.sh
-        [ -z "''${dontPatchFSharpTargets-}" ] && patch-fsharp-targets.sh
+      [ -z "''${dontPlacateNuget-}" ] && placate-nuget.sh
+      [ -z "''${dontPlacatePaket-}" ] && placate-paket.sh
+      [ -z "''${dontPatchFSharpTargets-}" ] && patch-fsharp-targets.sh
 
-        runHook postConfigure
-      '';
+      runHook postConfigure
+    '';
 
-      buildPhase = ''
-        runHook preBuild
+    buildPhase = ''
+      runHook preBuild
 
-        echo Building dotNET packages...
+      echo Building dotNET packages...
 
-        # Probably needs to be moved to fsharp
-        if pkg-config FSharp.Core
-        then
-          export FSharpTargetsPath="$(dirname $(pkg-config FSharp.Core --variable=Libraries))/Microsoft.FSharp.Targets"
-        fi
+      # Probably needs to be moved to fsharp
+      if pkg-config FSharp.Core
+      then
+        export FSharpTargetsPath="$(dirname $(pkg-config FSharp.Core --variable=Libraries))/Microsoft.FSharp.Targets"
+      fi
 
-        ran=""
-        for xBuildFile in ${arrayToShell xBuildFiles} ''${xBuildFilesExtra}
+      ran=""
+      for xBuildFile in ${arrayToShell xBuildFiles} ''${xBuildFilesExtra}
+      do
+        ran="yes"
+        xbuild ${arrayToShell xBuildFlags} ''${xBuildFlagsArray} $xBuildFile
+      done
+
+      [ -z "$ran" ] && xbuild ${arrayToShell xBuildFlags} ''${xBuildFlagsArray}
+
+      runHook postBuild
+    '';
+
+    dontStrip = true;
+
+    installPhase = ''
+      runHook preInstall
+
+      target="$out/lib/dotnet/${pname}"
+      mkdir -p "$target"
+
+      cp -rv ${arrayToShell outputFiles} "''${outputFilesArray[@]}" "$target"
+
+      if [ -z "''${dontRemoveDuplicatedDlls-}" ]
+      then
+        pushd "$out"
+        remove-duplicated-dlls.sh
+        popd
+      fi
+
+      set -f
+      for dllPattern in ${arrayToShell dllFiles} ''${dllFilesArray[@]}
+      do
+        set +f
+        for dll in "$target"/$dllPattern
         do
-          ran="yes"
-          xbuild ${arrayToShell xBuildFlags} ''${xBuildFlagsArray} $xBuildFile
+          [ -f "$dll" ] || continue
+          if pkg-config $(basename -s .dll "$dll")
+          then
+            echo "$dll already exported by a buildInputs, not re-exporting"
+          else
+            create-pkg-config-for-dll.sh "$out/lib/pkgconfig" "$dll"
+          fi
         done
+      done
 
-        [ -z "$ran" ] && xbuild ${arrayToShell xBuildFlags} ''${xBuildFlagsArray}
-
-        runHook postBuild
-      '';
-
-      dontStrip = true;
-
-      installPhase = ''
-        runHook preInstall
-
-        target="$out/lib/dotnet/${pname}"
-        mkdir -p "$target"
-
-        cp -rv ${arrayToShell outputFiles} "''${outputFilesArray[@]}" "$target"
-
-        if [ -z "''${dontRemoveDuplicatedDlls-}" ]
-        then
-          pushd "$out"
-          remove-duplicated-dlls.sh
-          popd
-        fi
-
-        set -f
-        for dllPattern in ${arrayToShell dllFiles} ''${dllFilesArray[@]}
+      set -f
+      for exePattern in ${arrayToShell exeFiles} ''${exeFilesArray[@]}
+      do
+        set +f
+        for exe in "$target"/$exePattern
         do
-          set +f
-          for dll in "$target"/$dllPattern
-          do
-            [ -f "$dll" ] || continue
-            if pkg-config $(basename -s .dll "$dll")
-            then
-              echo "$dll already exported by a buildInputs, not re-exporting"
-            else
-              create-pkg-config-for-dll.sh "$out/lib/pkgconfig" "$dll"
-            fi
-          done
+          [ -f "$exe" ] || continue
+          mkdir -p "$out"/bin
+          commandName="$(basename -s .exe "$(echo "$exe" | tr "[A-Z]" "[a-z]")")"
+          makeWrapper \
+            "${mono}/bin/mono" \
+            "$out"/bin/"$commandName" \
+            --add-flags "\"$exe\"" \
+            ''${makeWrapperArgs}
         done
+      done
 
-        set -f
-        for exePattern in ${arrayToShell exeFiles} ''${exeFilesArray[@]}
-        do
-          set +f
-          for exe in "$target"/$exePattern
-          do
-            [ -f "$exe" ] || continue
-            mkdir -p "$out"/bin
-            commandName="$(basename -s .exe "$(echo "$exe" | tr "[A-Z]" "[a-z]")")"
-            makeWrapper \
-              "${mono}/bin/mono" \
-              "$out"/bin/"$commandName" \
-              --add-flags "\"$exe\"" \
-              ''${makeWrapperArgs}
-          done
-        done
-
-        runHook postInstall
-      '';
-    };
-  in
-    stdenv.mkDerivation (attrs // (builtins.removeAttrs attrsOrig [ "nativeBuildInputs" ] ))
+      runHook postInstall
+    '';
+  };
+in stdenv.mkDerivation
+(attrs // (builtins.removeAttrs attrsOrig [ "nativeBuildInputs" ]))

pkgs/build-support/dotnet/dotnetbuildhelpers/default.nix

@@ -1,18 +1,17 @@
 { runCommand, mono, pkg-config }:
-  runCommand
-    "dotnetbuildhelpers"
-    { preferLocalBuild = true; }
-    ''
-      target="$out/bin"
-      mkdir -p "$target"
+runCommand "dotnetbuildhelpers" { preferLocalBuild = true; } ''
+  target="$out/bin"
+  mkdir -p "$target"
 
-      for script in ${./create-pkg-config-for-dll.sh} ${./patch-fsharp-targets.sh} ${./remove-duplicated-dlls.sh} ${./placate-nuget.sh} ${./placate-paket.sh}
-      do
-        scriptName="$(basename "$script" | cut -f 2- -d -)"
-        cp -v "$script" "$target"/"$scriptName"
-        chmod 755 "$target"/"$scriptName"
-        patchShebangs "$target"/"$scriptName"
-        substituteInPlace "$target"/"$scriptName" --replace pkg-config ${pkg-config}/bin/${pkg-config.targetPrefix}pkg-config
-        substituteInPlace "$target"/"$scriptName" --replace monodis ${mono}/bin/monodis
-      done
-    ''
+  for script in ${./create-pkg-config-for-dll.sh} ${
+    ./patch-fsharp-targets.sh
+  } ${./remove-duplicated-dlls.sh} ${./placate-nuget.sh} ${./placate-paket.sh}
+  do
+    scriptName="$(basename "$script" | cut -f 2- -d -)"
+    cp -v "$script" "$target"/"$scriptName"
+    chmod 755 "$target"/"$scriptName"
+    patchShebangs "$target"/"$scriptName"
+    substituteInPlace "$target"/"$scriptName" --replace pkg-config ${pkg-config}/bin/${pkg-config.targetPrefix}pkg-config
+    substituteInPlace "$target"/"$scriptName" --replace monodis ${mono}/bin/monodis
+  done
+''

pkgs/build-support/dotnet/dotnetenv/build-solution.nix

@@ -1,16 +1,7 @@
 { lib, stdenv, dotnetfx }:
-{ name
-, src
-, baseDir ? "."
-, slnFile
-, targets ? "ReBuild"
-, verbosity ? "detailed"
-, options ? "/p:Configuration=Debug;Platform=Win32"
-, assemblyInputs ? []
-, preBuild ? ""
-, modifyPublicMain ? false
-, mainClassFile ? null
-}:
+{ name, src, baseDir ? ".", slnFile, targets ? "ReBuild", verbosity ? "detailed"
+, options ? "/p:Configuration=Debug;Platform=Win32", assemblyInputs ? [ ]
+, preBuild ? "", modifyPublicMain ? false, mainClassFile ? null }:
 
 assert modifyPublicMain -> mainClassFile != null;
 
@@ -31,55 +22,57 @@ stdenv.mkDerivation {
   '';
 
   installPhase = ''
-    addDeps()
-    {
-	if [ -f $1/nix-support/dotnet-assemblies ]
-	then
-	    for i in $(cat $1/nix-support/dotnet-assemblies)
-	    do
-		windowsPath=$(cygpath --windows $i)
-		assemblySearchPaths="$assemblySearchPaths;$windowsPath"
+        addDeps()
+        {
+    	if [ -f $1/nix-support/dotnet-assemblies ]
+    	then
+    	    for i in $(cat $1/nix-support/dotnet-assemblies)
+    	    do
+    		windowsPath=$(cygpath --windows $i)
+    		assemblySearchPaths="$assemblySearchPaths;$windowsPath"
 
-		addDeps $i
-	    done
-	fi
-    }
+    		addDeps $i
+    	    done
+    	fi
+        }
 
-    for i in ${toString assemblyInputs}
-    do
-	windowsPath=$(cygpath --windows $i)
-	echo "Using assembly path: $windowsPath"
+        for i in ${toString assemblyInputs}
+        do
+    	windowsPath=$(cygpath --windows $i)
+    	echo "Using assembly path: $windowsPath"
 
-	if [ "$assemblySearchPaths" = "" ]
-	then
-	    assemblySearchPaths="$windowsPath"
-	else
-	    assemblySearchPaths="$assemblySearchPaths;$windowsPath"
-	fi
+    	if [ "$assemblySearchPaths" = "" ]
+    	then
+    	    assemblySearchPaths="$windowsPath"
+    	else
+    	    assemblySearchPaths="$assemblySearchPaths;$windowsPath"
+    	fi
 
-	addDeps $i
-    done
+    	addDeps $i
+        done
 
-    echo "Assembly search paths are: $assemblySearchPaths"
+        echo "Assembly search paths are: $assemblySearchPaths"
 
-    if [ "$assemblySearchPaths" != "" ]
-    then
-	echo "Using assembly search paths args: $assemblySearchPathsArg"
-	export AssemblySearchPaths=$assemblySearchPaths
-    fi
+        if [ "$assemblySearchPaths" != "" ]
+        then
+    	echo "Using assembly search paths args: $assemblySearchPathsArg"
+    	export AssemblySearchPaths=$assemblySearchPaths
+        fi
 
-    mkdir -p $out
-    MSBuild.exe ${toString slnFile} /nologo /t:${targets} /p:IntermediateOutputPath=$(cygpath --windows $out)\\ /p:OutputPath=$(cygpath --windows $out)\\ /verbosity:${verbosity} ${options}
+        mkdir -p $out
+        MSBuild.exe ${
+          toString slnFile
+        } /nologo /t:${targets} /p:IntermediateOutputPath=$(cygpath --windows $out)\\ /p:OutputPath=$(cygpath --windows $out)\\ /verbosity:${verbosity} ${options}
 
-    # Because .NET assemblies store strings as UTF-16 internally, we cannot detect
-    # hashes. Therefore a text files containing the proper paths is created
-    # We can also use this file the propagate transitive dependencies.
+        # Because .NET assemblies store strings as UTF-16 internally, we cannot detect
+        # hashes. Therefore a text files containing the proper paths is created
+        # We can also use this file the propagate transitive dependencies.
 
-    mkdir -p $out/nix-support
+        mkdir -p $out/nix-support
 
-    for i in ${toString assemblyInputs}
-    do
-        echo $i >> $out/nix-support/dotnet-assemblies
-    done
+        for i in ${toString assemblyInputs}
+        do
+            echo $i >> $out/nix-support/dotnet-assemblies
+        done
   '';
 }

pkgs/build-support/dotnet/dotnetenv/default.nix

@@ -1,17 +1,15 @@
 { lib, stdenv, dotnetfx }:
 
-let dotnetenv =
-{
-  buildSolution = import ./build-solution.nix {
-    inherit lib stdenv;
-    dotnetfx = dotnetfx.pkg;
-  };
+let
+  dotnetenv = {
+    buildSolution = import ./build-solution.nix {
+      inherit lib stdenv;
+      dotnetfx = dotnetfx.pkg;
+    };
 
-  buildWrapper = import ./wrapper.nix {
-    inherit dotnetenv;
-  };
+    buildWrapper = import ./wrapper.nix { inherit dotnetenv; };
 
-  inherit (dotnetfx) assembly20Path wcfPath referenceAssembly30Path referenceAssembly35Path;
-};
-in
-dotnetenv
+    inherit (dotnetfx)
+      assembly20Path wcfPath referenceAssembly30Path referenceAssembly35Path;
+  };
+in dotnetenv

pkgs/build-support/dotnet/dotnetenv/wrapper.nix

@@ -1,19 +1,9 @@
-{dotnetenv}:
+{ dotnetenv }:
 
-{ name
-, src
-, baseDir ? "."
-, slnFile
-, targets ? "ReBuild"
-, verbosity ? "detailed"
-, options ? "/p:Configuration=Debug;Platform=Win32"
-, assemblyInputs ? []
-, preBuild ? ""
-, namespace
-, mainClassName
-, mainClassFile
-, modifyPublicMain ? true
-}:
+{ name, src, baseDir ? ".", slnFile, targets ? "ReBuild", verbosity ? "detailed"
+, options ? "/p:Configuration=Debug;Platform=Win32", assemblyInputs ? [ ]
+, preBuild ? "", namespace, mainClassName, mainClassFile
+, modifyPublicMain ? true }:
 
 let
   application = dotnetenv.buildSolution {
@@ -21,44 +11,43 @@ let
     inherit options assemblyInputs preBuild;
     inherit modifyPublicMain mainClassFile;
   };
-in
-dotnetenv.buildSolution {
+in dotnetenv.buildSolution {
   name = "${name}-wrapper";
   src = ./Wrapper;
   slnFile = "Wrapper.sln";
   assemblyInputs = [ application ];
   preBuild = ''
-    addRuntimeDeps()
-    {
-	if [ -f $1/nix-support/dotnet-assemblies ]
-	then
-	    for i in $(cat $1/nix-support/dotnet-assemblies)
-	    do
-		windowsPath=$(cygpath --windows $i | sed 's|\\|\\\\|g')
-		assemblySearchArray="$assemblySearchArray @\"$windowsPath\""
+        addRuntimeDeps()
+        {
+    	if [ -f $1/nix-support/dotnet-assemblies ]
+    	then
+    	    for i in $(cat $1/nix-support/dotnet-assemblies)
+    	    do
+    		windowsPath=$(cygpath --windows $i | sed 's|\\|\\\\|g')
+    		assemblySearchArray="$assemblySearchArray @\"$windowsPath\""
 
-		addRuntimeDeps $i
-	    done
-	fi
-    }
+    		addRuntimeDeps $i
+    	    done
+    	fi
+        }
 
-    export exePath=$(cygpath --windows $(find ${application} -name \*.exe) | sed 's|\\|\\\\|g')
+        export exePath=$(cygpath --windows $(find ${application} -name \*.exe) | sed 's|\\|\\\\|g')
 
-    # Generate assemblySearchPaths string array contents
-    for path in ${toString assemblyInputs}
-    do
-        assemblySearchArray="$assemblySearchArray @\"$(cygpath --windows $path | sed 's|\\|\\\\|g')\", "
-	addRuntimeDeps $path
-    done
+        # Generate assemblySearchPaths string array contents
+        for path in ${toString assemblyInputs}
+        do
+            assemblySearchArray="$assemblySearchArray @\"$(cygpath --windows $path | sed 's|\\|\\\\|g')\", "
+    	addRuntimeDeps $path
+        done
 
-    sed -e "s|@ROOTNAMESPACE@|${namespace}Wrapper|" \
-        -e "s|@ASSEMBLYNAME@|${namespace}|" \
-        Wrapper/Wrapper.csproj.in > Wrapper/Wrapper.csproj
+        sed -e "s|@ROOTNAMESPACE@|${namespace}Wrapper|" \
+            -e "s|@ASSEMBLYNAME@|${namespace}|" \
+            Wrapper/Wrapper.csproj.in > Wrapper/Wrapper.csproj
 
-    sed -e "s|@NAMESPACE@|${namespace}|g" \
-        -e "s|@MAINCLASSNAME@|${mainClassName}|g" \
-	-e "s|@EXEPATH@|$exePath|g" \
-	-e "s|@ASSEMBLYSEARCHPATH@|$assemblySearchArray|" \
-        Wrapper/Wrapper.cs.in > Wrapper/Wrapper.cs
+        sed -e "s|@NAMESPACE@|${namespace}|g" \
+            -e "s|@MAINCLASSNAME@|${mainClassName}|g" \
+    	-e "s|@EXEPATH@|$exePath|g" \
+    	-e "s|@ASSEMBLYSEARCHPATH@|$assemblySearchArray|" \
+            Wrapper/Wrapper.cs.in > Wrapper/Wrapper.cs
   '';
 }

pkgs/build-support/dotnet/fetchnuget/default.nix

@@ -1,13 +1,8 @@
 { fetchurl, buildDotnetPackage, unzip }:
 
-attrs @
-{ pname
-, version
-, url ? "https://www.nuget.org/api/v2/package/${pname}/${version}"
-, sha256 ? ""
-, md5 ? ""
-, ...
-}:
+attrs@{ pname, version
+, url ? "https://www.nuget.org/api/v2/package/${pname}/${version}", sha256 ? ""
+, md5 ? "", ... }:
 if md5 != "" then
   throw "fetchnuget does not support md5 anymore, please use sha256"
 else
@@ -39,5 +34,5 @@ else
       }
 
       traverseRename
-   '';
+    '';
   } // attrs)

pkgs/build-support/dotnet/make-nuget-source/default.nix

@@ -1,10 +1,6 @@
 { lib, python3, stdenvNoCC }:
 
-{ name
-, description ? ""
-, deps ? []
-, ...
-}@args:
+{ name, description ? "", deps ? [ ], ... }@args:
 
 stdenvNoCC.mkDerivation (lib.recursiveUpdate {
   inherit name;

pkgs/build-support/dotnet/nuget-to-nix/default.nix

@@ -1,35 +1,17 @@
-{ lib
-, runCommandLocal
-, runtimeShell
-, substituteAll
-, nix
-, coreutils
-, jq
-, yq
-, curl
-, gnugrep
-, gawk
-, dotnet-sdk
-}:
+{ lib, runCommandLocal, runtimeShell, substituteAll, nix, coreutils, jq, yq
+, curl, gnugrep, gawk, dotnet-sdk }:
 
 runCommandLocal "nuget-to-nix" {
   script = substituteAll {
     src = ./nuget-to-nix.sh;
     inherit runtimeShell;
 
-    binPath = lib.makeBinPath [
-      nix
-      coreutils
-      jq
-      yq
-      curl
-      gnugrep
-      gawk
-      dotnet-sdk
-    ];
+    binPath =
+      lib.makeBinPath [ nix coreutils jq yq curl gnugrep gawk dotnet-sdk ];
   };
 
-  meta.description = "Convert a nuget packages directory to a lockfile for buildDotnetModule";
+  meta.description =
+    "Convert a nuget packages directory to a lockfile for buildDotnetModule";
 } ''
   install -Dm755 $script $out/bin/nuget-to-nix
 ''

pkgs/build-support/emacs/buffer.nix

@@ -4,9 +4,11 @@
 { lib, writeText, inherit-local }:
 
 rec {
-  withPackages = pkgs': let
+  withPackages = pkgs':
+    let
       pkgs = builtins.filter (x: x != null) pkgs';
-      extras = map (x: x.emacsBufferSetup pkgs) (builtins.filter (builtins.hasAttr "emacsBufferSetup") pkgs);
+      extras = map (x: x.emacsBufferSetup pkgs)
+        (builtins.filter (builtins.hasAttr "emacsBufferSetup") pkgs);
     in writeText "dir-locals.el" ''
       (require 'inherit-local "${inherit-local}/share/emacs/site-lisp/elpa/inherit-local-${inherit-local.version}/inherit-local.elc")
 
@@ -42,10 +44,16 @@ rec {
       (inherit-local 'process-environment)
       ; setenv modifies in place, so copy the environment first
       (setq process-environment (copy-tree process-environment))
-      (setenv "PATH" (concat "${lib.makeSearchPath "bin" pkgs}:" (getenv "PATH")))
-      (inherit-local-permanent exec-path (append '(${builtins.concatStringsSep " " (map (p: "\"${p}/bin\"") pkgs)}) exec-path))
+      (setenv "PATH" (concat "${
+        lib.makeSearchPath "bin" pkgs
+      }:" (getenv "PATH")))
+      (inherit-local-permanent exec-path (append '(${
+        builtins.concatStringsSep " " (map (p: ''"${p}/bin"'') pkgs)
+      }) exec-path))
 
-      (inherit-local-permanent eshell-path-env (concat "${lib.makeSearchPath "bin" pkgs}:" (if (boundp 'eshell-path-env) eshell-path-env (getenv "PATH"))))
+      (inherit-local-permanent eshell-path-env (concat "${
+        lib.makeSearchPath "bin" pkgs
+      }:" (if (boundp 'eshell-path-env) eshell-path-env (getenv "PATH"))))
 
       (setq nixpkgs--is-nixpkgs-buffer t)
       (inherit-local 'nixpkgs--is-nixpkgs-buffer)
@@ -55,23 +63,22 @@ rec {
   # nix-buffer function for a project with a bunch of haskell packages
   # in one directory
   haskellMonoRepo = { project-root # The monorepo root
-                    , haskellPackages # The composed haskell packages set that contains all of the packages
-                    }: { root }:
+    , haskellPackages # The composed haskell packages set that contains all of the packages
+    }:
+    { root }:
     let # The haskell paths.
-        haskell-paths = lib.filesystem.haskellPathsInDir project-root;
-        # Find the haskell package that the 'root' is in, if any.
-        haskell-path-parent =
-          let filtered = builtins.filter (name:
-            lib.hasPrefix (toString (project-root + "/${name}")) (toString root)
-          ) (builtins.attrNames haskell-paths);
-          in
-            if filtered == [] then null else builtins.head filtered;
-        # We're in the directory of a haskell package
-        is-haskell-package = haskell-path-parent != null;
-        haskell-package = haskellPackages.${haskell-path-parent};
-        # GHC environment with all needed deps for the haskell package
-        haskell-package-env =
-          builtins.head haskell-package.env.nativeBuildInputs;
-    in
-      lib.optionalAttrs is-haskell-package (withPackages [ haskell-package-env ]);
+      haskell-paths = lib.filesystem.haskellPathsInDir project-root;
+      # Find the haskell package that the 'root' is in, if any.
+      haskell-path-parent = let
+        filtered = builtins.filter (name:
+          lib.hasPrefix (toString (project-root + "/${name}")) (toString root))
+          (builtins.attrNames haskell-paths);
+      in if filtered == [ ] then null else builtins.head filtered;
+      # We're in the directory of a haskell package
+      is-haskell-package = haskell-path-parent != null;
+      haskell-package = haskellPackages.${haskell-path-parent};
+      # GHC environment with all needed deps for the haskell package
+      haskell-package-env = builtins.head haskell-package.env.nativeBuildInputs;
+    in lib.optionalAttrs is-haskell-package
+    (withPackages [ haskell-package-env ]);
 }

pkgs/build-support/emacs/elpa.nix

@@ -4,16 +4,10 @@
 
 let
   handledArgs = [ "files" "fileSpecs" "meta" ];
-  genericBuild = import ./generic.nix { inherit lib stdenv emacs texinfo writeText gcc; };
+  genericBuild =
+    import ./generic.nix { inherit lib stdenv emacs texinfo writeText gcc; };
 
-in
-
-{ pname
-, version
-, src
-, meta ? {}
-, ...
-}@args:
+in { pname, version, src, meta ? { }, ... }@args:
 
 genericBuild ({
 
@@ -30,8 +24,9 @@ genericBuild ({
   '';
 
   meta = {
-    homepage = args.src.meta.homepage or "https://elpa.gnu.org/packages/${pname}.html";
+    homepage =
+      args.src.meta.homepage or "https://elpa.gnu.org/packages/${pname}.html";
   } // meta;
 }
 
-// removeAttrs args handledArgs)
+  // removeAttrs args handledArgs)

pkgs/build-support/emacs/generic.nix

@@ -20,71 +20,65 @@ let
     fi
   '';
 
-in
-
-{ pname
-, version
-, buildInputs ? []
-, packageRequires ? []
-, meta ? {}
-, ...
+in { pname, version, buildInputs ? [ ], packageRequires ? [ ], meta ? { }, ...
 }@args:
 
-stdenv.mkDerivation (finalAttrs: ({
-  name = "emacs-${pname}-${finalAttrs.version}";
+stdenv.mkDerivation (finalAttrs:
+  ({
+    name = "emacs-${pname}-${finalAttrs.version}";
 
-  unpackCmd = ''
-    case "$curSrc" in
-      *.el)
-        # keep original source filename without the hash
-        local filename=$(basename "$curSrc")
-        filename="''${filename:33}"
-        cp $curSrc $filename
-        chmod +w $filename
-        sourceRoot="."
-        ;;
-      *)
-        _defaultUnpack "$curSrc"
-        ;;
-    esac
-  '';
+    unpackCmd = ''
+      case "$curSrc" in
+        *.el)
+          # keep original source filename without the hash
+          local filename=$(basename "$curSrc")
+          filename="''${filename:33}"
+          cp $curSrc $filename
+          chmod +w $filename
+          sourceRoot="."
+          ;;
+        *)
+          _defaultUnpack "$curSrc"
+          ;;
+      esac
+    '';
 
-  buildInputs = [emacs texinfo] ++ packageRequires ++ buildInputs;
-  propagatedBuildInputs = packageRequires;
-  propagatedUserEnvPkgs = packageRequires;
+    buildInputs = [ emacs texinfo ] ++ packageRequires ++ buildInputs;
+    propagatedBuildInputs = packageRequires;
+    propagatedUserEnvPkgs = packageRequires;
 
-  inherit setupHook;
+    inherit setupHook;
 
-  doCheck = false;
+    doCheck = false;
 
-  meta = {
-    broken = false;
-    platforms = emacs.meta.platforms;
-  } // optionalAttrs ((args.src.meta.homepage or "") != "") {
-    homepage = args.src.meta.homepage;
-  } // meta;
-}
+    meta = {
+      broken = false;
+      platforms = emacs.meta.platforms;
+    } // optionalAttrs ((args.src.meta.homepage or "") != "") {
+      homepage = args.src.meta.homepage;
+    } // meta;
+  }
 
-// optionalAttrs (emacs.withNativeCompilation or false) {
+    // optionalAttrs (emacs.withNativeCompilation or false) {
 
-  LIBRARY_PATH = "${getLib stdenv.cc.libc}/lib";
+      LIBRARY_PATH = "${getLib stdenv.cc.libc}/lib";
 
-  nativeBuildInputs = [ gcc ];
+      nativeBuildInputs = [ gcc ];
 
-  addEmacsNativeLoadPath = true;
+      addEmacsNativeLoadPath = true;
 
-  postInstall = ''
-    # Besides adding the output directory to the native load path, make sure
-    # the current package's elisp files are in the load path, otherwise
-    # (require 'file-b) from file-a.el in the same package will fail.
-    mkdir -p $out/share/emacs/native-lisp
-    source ${./emacs-funcs.sh}
-    addEmacsVars "$out"
+      postInstall = ''
+        # Besides adding the output directory to the native load path, make sure
+        # the current package's elisp files are in the load path, otherwise
+        # (require 'file-b) from file-a.el in the same package will fail.
+        mkdir -p $out/share/emacs/native-lisp
+        source ${./emacs-funcs.sh}
+        addEmacsVars "$out"
 
-    find $out/share/emacs -type f -name '*.el' -print0 \
-      | xargs -0 -I {} -n 1 -P $NIX_BUILD_CORES sh -c \
-          "emacs --batch --eval '(setq large-file-warning-threshold nil)' -f batch-native-compile {} || true"
-  '';
-}
+        find $out/share/emacs -type f -name '*.el' -print0 \
+          | xargs -0 -I {} -n 1 -P $NIX_BUILD_CORES sh -c \
+              "emacs --batch --eval '(setq large-file-warning-threshold nil)' -f batch-native-compile {} || true"
+      '';
+    }
 
-// removeAttrs args handledArgs))
+    // removeAttrs args handledArgs))

pkgs/build-support/emacs/melpa.nix

@@ -4,7 +4,8 @@
 { lib, stdenv, fetchFromGitHub, emacs, texinfo, writeText, gcc }:
 
 let
-  genericBuild = import ./generic.nix { inherit lib stdenv emacs texinfo writeText gcc; };
+  genericBuild =
+    import ./generic.nix { inherit lib stdenv emacs texinfo writeText gcc; };
 
   packageBuild = stdenv.mkDerivation {
     name = "package-build";
@@ -20,35 +21,20 @@ let
     dontConfigure = true;
     dontBuild = true;
 
-    installPhase = "
-      mkdir -p $out
-      cp -r * $out
-    ";
+    installPhase = "\n      mkdir -p $out\n      cp -r * $out\n    ";
   };
 
-in
-
-{ /*
-    pname: Nix package name without special symbols and without version or
-    "emacs-" prefix.
-  */
-  pname
-  /*
-    ename: Original Emacs package name, possibly containing special symbols.
-  */
-, ename ? null
-, version
-, recipe
-, meta ? {}
-, ...
-}@args:
+in {
+/* pname: Nix package name without special symbols and without version or
+   "emacs-" prefix.
+*/
+pname
+# ename: Original Emacs package name, possibly containing special symbols.
+, ename ? null, version, recipe, meta ? { }, ... }@args:
 
 genericBuild ({
 
-  ename =
-    if ename == null
-    then pname
-    else ename;
+  ename = if ename == null then pname else ename;
 
   elpa2nix = ./elpa2nix.el;
   melpa2nix = ./melpa2nix.el;
@@ -83,7 +69,7 @@ genericBuild ({
         $ename $version $commit
 
     runHook postBuild
-    '';
+  '';
 
   installPhase = ''
     runHook preInstall
@@ -106,4 +92,4 @@ genericBuild ({
   } // meta;
 }
 
-// removeAttrs args [ "meta" ])
+  // removeAttrs args [ "meta" ])

pkgs/build-support/emacs/trivial.nix

@@ -25,4 +25,4 @@ callPackage ./generic.nix envargs ({
   '';
 }
 
-// args)
+  // args)

pkgs/build-support/emacs/wrapper.nix

@@ -1,35 +1,32 @@
-/*
+/* # Usage
 
-# Usage
+   `emacs.pkgs.withPackages` takes a single argument: a function from a package
+   set to a list of packages (the packages that will be available in
+   Emacs). For example,
+   ```
+   emacs.pkgs.withPackages (epkgs: [ epkgs.evil epkgs.magit ])
+   ```
+   All the packages in the list should come from the provided package
+   set. It is possible to add any package to the list, but the provided
+   set is guaranteed to have consistent dependencies and be built with
+   the correct version of Emacs.
 
-`emacs.pkgs.withPackages` takes a single argument: a function from a package
-set to a list of packages (the packages that will be available in
-Emacs). For example,
-```
-emacs.pkgs.withPackages (epkgs: [ epkgs.evil epkgs.magit ])
-```
-All the packages in the list should come from the provided package
-set. It is possible to add any package to the list, but the provided
-set is guaranteed to have consistent dependencies and be built with
-the correct version of Emacs.
-
-# Overriding
-
-`emacs.pkgs.withPackages` inherits the package set which contains it, so the
-correct way to override the provided package set is to override the
-set which contains `emacs.pkgs.withPackages`. For example, to override
-`emacs.pkgs.emacs.pkgs.withPackages`,
-```
-let customEmacsPackages =
-      emacs.pkgs.overrideScope (self: super: {
-        # use a custom version of emacs
-        emacs = ...;
-        # use the unstable MELPA version of magit
-        magit = self.melpaPackages.magit;
-      });
-in customEmacsPackages.withPackages (epkgs: [ epkgs.evil epkgs.magit ])
-```
+   # Overriding
 
+   `emacs.pkgs.withPackages` inherits the package set which contains it, so the
+   correct way to override the provided package set is to override the
+   set which contains `emacs.pkgs.withPackages`. For example, to override
+   `emacs.pkgs.emacs.pkgs.withPackages`,
+   ```
+   let customEmacsPackages =
+         emacs.pkgs.overrideScope (self: super: {
+           # use a custom version of emacs
+           emacs = ...;
+           # use the unstable MELPA version of magit
+           magit = self.melpaPackages.magit;
+         });
+   in customEmacsPackages.withPackages (epkgs: [ epkgs.evil epkgs.magit ])
+   ```
 */
 
 { lib, lndir, makeBinaryWrapper, runCommand, gcc }:
@@ -38,199 +35,196 @@ let
   inherit (self) emacs;
   withNativeCompilation = emacs.withNativeCompilation or false;
   withTreeSitter = emacs.withTreeSitter or false;
-in
-packagesFun: # packages explicitly requested by the user
+in packagesFun: # packages explicitly requested by the user
 let
   explicitRequires =
-    if lib.isFunction packagesFun
-    then packagesFun self
-    else packagesFun;
-in
-runCommand
-  (lib.appendToName "with-packages" emacs).name
-  {
-    inherit emacs explicitRequires;
-    nativeBuildInputs = [ emacs lndir makeBinaryWrapper ];
+    if lib.isFunction packagesFun then packagesFun self else packagesFun;
+in runCommand (lib.appendToName "with-packages" emacs).name {
+  inherit emacs explicitRequires;
+  nativeBuildInputs = [ emacs lndir makeBinaryWrapper ];
 
-    preferLocalBuild = true;
-    allowSubstitutes = false;
+  preferLocalBuild = true;
+  allowSubstitutes = false;
 
-    # Store all paths we want to add to emacs here, so that we only need to add
-    # one path to the load lists
-    deps = runCommand "emacs-packages-deps"
-      ({
-        inherit explicitRequires lndir emacs;
-        nativeBuildInputs = lib.optional withNativeCompilation gcc;
-      } // lib.optionalAttrs withNativeCompilation {
-        inherit (emacs) LIBRARY_PATH;
-      })
-      ''
-        findInputsOld() {
-          local pkg="$1"; shift
-          local var="$1"; shift
-          local propagatedBuildInputsFiles=("$@")
+  # Store all paths we want to add to emacs here, so that we only need to add
+  # one path to the load lists
+  deps = runCommand "emacs-packages-deps" ({
+    inherit explicitRequires lndir emacs;
+    nativeBuildInputs = lib.optional withNativeCompilation gcc;
+  } // lib.optionalAttrs withNativeCompilation {
+    inherit (emacs) LIBRARY_PATH;
+  }) ''
+    findInputsOld() {
+      local pkg="$1"; shift
+      local var="$1"; shift
+      local propagatedBuildInputsFiles=("$@")
 
-          # TODO(@Ericson2314): Restore using associative array once Darwin
-          # nix-shell doesn't use impure bash. This should replace the O(n)
-          # case with an O(1) hash map lookup, assuming bash is implemented
-          # well :D.
-          local varSlice="$var[*]"
-          # ''${..-} to hack around old bash empty array problem
-          case "''${!varSlice-}" in
-              *" $pkg "*) return 0 ;;
-          esac
-          unset -v varSlice
+      # TODO(@Ericson2314): Restore using associative array once Darwin
+      # nix-shell doesn't use impure bash. This should replace the O(n)
+      # case with an O(1) hash map lookup, assuming bash is implemented
+      # well :D.
+      local varSlice="$var[*]"
+      # ''${..-} to hack around old bash empty array problem
+      case "''${!varSlice-}" in
+          *" $pkg "*) return 0 ;;
+      esac
+      unset -v varSlice
 
-          eval "$var"'+=("$pkg")'
+      eval "$var"'+=("$pkg")'
 
-          if ! [ -e "$pkg" ]; then
-              echo "build input $pkg does not exist" >&2
-              exit 1
-          fi
+      if ! [ -e "$pkg" ]; then
+          echo "build input $pkg does not exist" >&2
+          exit 1
+      fi
 
-          local file
-          for file in "''${propagatedBuildInputsFiles[@]}"; do
-              file="$pkg/nix-support/$file"
-              [[ -f "$file" ]] || continue
+      local file
+      for file in "''${propagatedBuildInputsFiles[@]}"; do
+          file="$pkg/nix-support/$file"
+          [[ -f "$file" ]] || continue
 
-              local pkgNext
-              for pkgNext in $(< "$file"); do
-                  findInputsOld "$pkgNext" "$var" "''${propagatedBuildInputsFiles[@]}"
-              done
+          local pkgNext
+          for pkgNext in $(< "$file"); do
+              findInputsOld "$pkgNext" "$var" "''${propagatedBuildInputsFiles[@]}"
           done
-        }
-        mkdir -p $out/bin
-        mkdir -p $out/share/emacs/site-lisp
-        ${lib.optionalString withNativeCompilation ''
-          mkdir -p $out/share/emacs/native-lisp
-        ''}
-        ${lib.optionalString withTreeSitter ''
-          mkdir -p $out/lib
-        ''}
+      done
+    }
+    mkdir -p $out/bin
+    mkdir -p $out/share/emacs/site-lisp
+    ${lib.optionalString withNativeCompilation ''
+      mkdir -p $out/share/emacs/native-lisp
+    ''}
+    ${lib.optionalString withTreeSitter ''
+      mkdir -p $out/lib
+    ''}
 
-        local requires
-        for pkg in $explicitRequires; do
-          findInputsOld $pkg requires propagated-user-env-packages
-        done
-        # requires now holds all requested packages and their transitive dependencies
+    local requires
+    for pkg in $explicitRequires; do
+      findInputsOld $pkg requires propagated-user-env-packages
+    done
+    # requires now holds all requested packages and their transitive dependencies
 
-        linkPath() {
-          local pkg=$1
-          local origin_path=$2
-          local dest_path=$3
+    linkPath() {
+      local pkg=$1
+      local origin_path=$2
+      local dest_path=$3
 
-          # Add the path to the search path list, but only if it exists
-          if [[ -d "$pkg/$origin_path" ]]; then
-            $lndir/bin/lndir -silent "$pkg/$origin_path" "$out/$dest_path"
-          fi
-        }
+      # Add the path to the search path list, but only if it exists
+      if [[ -d "$pkg/$origin_path" ]]; then
+        $lndir/bin/lndir -silent "$pkg/$origin_path" "$out/$dest_path"
+      fi
+    }
 
-        linkEmacsPackage() {
-          linkPath "$1" "bin" "bin"
-          linkPath "$1" "share/emacs/site-lisp" "share/emacs/site-lisp"
-          ${lib.optionalString withNativeCompilation ''
-            linkPath "$1" "share/emacs/native-lisp" "share/emacs/native-lisp"
-          ''}
-          ${lib.optionalString withTreeSitter ''
-            linkPath "$1" "lib" "lib"
-          ''}
-        }
+    linkEmacsPackage() {
+      linkPath "$1" "bin" "bin"
+      linkPath "$1" "share/emacs/site-lisp" "share/emacs/site-lisp"
+      ${
+        lib.optionalString withNativeCompilation ''
+          linkPath "$1" "share/emacs/native-lisp" "share/emacs/native-lisp"
+        ''
+      }
+      ${
+        lib.optionalString withTreeSitter ''
+          linkPath "$1" "lib" "lib"
+        ''
+      }
+    }
 
-        # Iterate over the array of inputs (avoiding nix's own interpolation)
-        for pkg in "''${requires[@]}"; do
-          linkEmacsPackage $pkg
-        done
-
-        siteStart="$out/share/emacs/site-lisp/site-start.el"
-        siteStartByteCompiled="$siteStart"c
-        subdirs="$out/share/emacs/site-lisp/subdirs.el"
-        subdirsByteCompiled="$subdirs"c
-
-        # A dependency may have brought the original siteStart or subdirs, delete
-        # it and create our own
-        # Begin the new site-start.el by loading the original, which sets some
-        # NixOS-specific paths. Paths are searched in the reverse of the order
-        # they are specified in, so user and system profile paths are searched last.
-        #
-        # NOTE: Avoid displaying messages early at startup by binding
-        # inhibit-message to t. This would prevent the Emacs GUI from showing up
-        # prematurely. The messages would still be logged to the *Messages*
-        # buffer.
-        rm -f $siteStart $siteStartByteCompiled $subdirs $subdirsByteCompiled
-        cat >"$siteStart" <<EOF
-        (let ((inhibit-message t))
-          (load "$emacs/share/emacs/site-lisp/site-start"))
-        ;; "$out/share/emacs/site-lisp" is added to load-path in wrapper.sh
-        ;; "$out/share/emacs/native-lisp" is added to native-comp-eln-load-path in wrapper.sh
-        (add-to-list 'exec-path "$out/bin")
-        ${lib.optionalString withTreeSitter ''
-          (add-to-list 'treesit-extra-load-path "$out/lib/")
-        ''}
-        EOF
-
-        # Generate a subdirs.el that statically adds all subdirectories to load-path.
-        $emacs/bin/emacs \
-          --batch \
-          --load ${./mk-wrapper-subdirs.el} \
-          --eval "(prin1 (macroexpand-1 '(mk-subdirs-expr \"$out/share/emacs/site-lisp\")))" \
-          > "$subdirs"
-
-        # Byte-compiling improves start-up time only slightly, but costs nothing.
-        $emacs/bin/emacs --batch -f batch-byte-compile "$siteStart" "$subdirs"
-
-        ${lib.optionalString withNativeCompilation ''
-          $emacs/bin/emacs --batch \
-            --eval "(add-to-list 'native-comp-eln-load-path \"$out/share/emacs/native-lisp/\")" \
-            -f batch-native-compile "$siteStart" "$subdirs"
-        ''}
-      '';
-
-    inherit (emacs) meta;
-  }
-  ''
-    mkdir -p "$out/bin"
-
-    # Wrap emacs and friends so they find our site-start.el before the original.
-    for prog in $emacs/bin/*; do # */
-      local progname=$(basename "$prog")
-      rm -f "$out/bin/$progname"
-
-      substitute ${./wrapper.sh} $out/bin/$progname \
-        --subst-var-by bash ${emacs.stdenv.shell} \
-        --subst-var-by wrapperSiteLisp "$deps/share/emacs/site-lisp" \
-        --subst-var-by wrapperSiteLispNative "$deps/share/emacs/native-lisp" \
-        --subst-var prog
-      chmod +x $out/bin/$progname
-      # Create a “NOP” binary wrapper for the pure sake of it becoming a
-      # non-shebang, actual binary. See the makeBinaryWrapper docs for rationale
-      # (summary: it allows you to use emacs as a shebang itself on Darwin,
-      # e.g. #!$ {emacs}/bin/emacs --script)
-      wrapProgramBinary $out/bin/$progname
+    # Iterate over the array of inputs (avoiding nix's own interpolation)
+    for pkg in "''${requires[@]}"; do
+      linkEmacsPackage $pkg
     done
 
-    # Wrap MacOS app
-    # this has to pick up resources and metadata
-    # to recognize it as an "app"
-    if [ -d "$emacs/Applications/Emacs.app" ]; then
-      mkdir -p $out/Applications/Emacs.app/Contents/MacOS
-      cp -r $emacs/Applications/Emacs.app/Contents/Info.plist \
-            $emacs/Applications/Emacs.app/Contents/PkgInfo \
-            $emacs/Applications/Emacs.app/Contents/Resources \
-            $out/Applications/Emacs.app/Contents
+    siteStart="$out/share/emacs/site-lisp/site-start.el"
+    siteStartByteCompiled="$siteStart"c
+    subdirs="$out/share/emacs/site-lisp/subdirs.el"
+    subdirsByteCompiled="$subdirs"c
+
+    # A dependency may have brought the original siteStart or subdirs, delete
+    # it and create our own
+    # Begin the new site-start.el by loading the original, which sets some
+    # NixOS-specific paths. Paths are searched in the reverse of the order
+    # they are specified in, so user and system profile paths are searched last.
+    #
+    # NOTE: Avoid displaying messages early at startup by binding
+    # inhibit-message to t. This would prevent the Emacs GUI from showing up
+    # prematurely. The messages would still be logged to the *Messages*
+    # buffer.
+    rm -f $siteStart $siteStartByteCompiled $subdirs $subdirsByteCompiled
+    cat >"$siteStart" <<EOF
+    (let ((inhibit-message t))
+      (load "$emacs/share/emacs/site-lisp/site-start"))
+    ;; "$out/share/emacs/site-lisp" is added to load-path in wrapper.sh
+    ;; "$out/share/emacs/native-lisp" is added to native-comp-eln-load-path in wrapper.sh
+    (add-to-list 'exec-path "$out/bin")
+    ${lib.optionalString withTreeSitter ''
+      (add-to-list 'treesit-extra-load-path "$out/lib/")
+    ''}
+    EOF
+
+    # Generate a subdirs.el that statically adds all subdirectories to load-path.
+    $emacs/bin/emacs \
+      --batch \
+      --load ${./mk-wrapper-subdirs.el} \
+      --eval "(prin1 (macroexpand-1 '(mk-subdirs-expr \"$out/share/emacs/site-lisp\")))" \
+      > "$subdirs"
+
+    # Byte-compiling improves start-up time only slightly, but costs nothing.
+    $emacs/bin/emacs --batch -f batch-byte-compile "$siteStart" "$subdirs"
+
+    ${lib.optionalString withNativeCompilation ''
+      $emacs/bin/emacs --batch \
+        --eval "(add-to-list 'native-comp-eln-load-path \"$out/share/emacs/native-lisp/\")" \
+        -f batch-native-compile "$siteStart" "$subdirs"
+    ''}
+  '';
+
+  inherit (emacs) meta;
+} ''
+  mkdir -p "$out/bin"
+
+  # Wrap emacs and friends so they find our site-start.el before the original.
+  for prog in $emacs/bin/*; do # */
+    local progname=$(basename "$prog")
+    rm -f "$out/bin/$progname"
+
+    substitute ${./wrapper.sh} $out/bin/$progname \
+      --subst-var-by bash ${emacs.stdenv.shell} \
+      --subst-var-by wrapperSiteLisp "$deps/share/emacs/site-lisp" \
+      --subst-var-by wrapperSiteLispNative "$deps/share/emacs/native-lisp" \
+      --subst-var prog
+    chmod +x $out/bin/$progname
+    # Create a “NOP” binary wrapper for the pure sake of it becoming a
+    # non-shebang, actual binary. See the makeBinaryWrapper docs for rationale
+    # (summary: it allows you to use emacs as a shebang itself on Darwin,
+    # e.g. #!$ {emacs}/bin/emacs --script)
+    wrapProgramBinary $out/bin/$progname
+  done
+
+  # Wrap MacOS app
+  # this has to pick up resources and metadata
+  # to recognize it as an "app"
+  if [ -d "$emacs/Applications/Emacs.app" ]; then
+    mkdir -p $out/Applications/Emacs.app/Contents/MacOS
+    cp -r $emacs/Applications/Emacs.app/Contents/Info.plist \
+          $emacs/Applications/Emacs.app/Contents/PkgInfo \
+          $emacs/Applications/Emacs.app/Contents/Resources \
+          $out/Applications/Emacs.app/Contents
 
 
-      substitute ${./wrapper.sh} $out/Applications/Emacs.app/Contents/MacOS/Emacs \
-        --subst-var-by bash ${emacs.stdenv.shell} \
-        --subst-var-by wrapperSiteLisp "$deps/share/emacs/site-lisp" \
-        --subst-var-by wrapperSiteLispNative "$deps/share/emacs/native-lisp" \
-        --subst-var-by prog "$emacs/Applications/Emacs.app/Contents/MacOS/Emacs"
-      chmod +x $out/Applications/Emacs.app/Contents/MacOS/Emacs
-      wrapProgramBinary $out/Applications/Emacs.app/Contents/MacOS/Emacs
-    fi
+    substitute ${
+      ./wrapper.sh
+    } $out/Applications/Emacs.app/Contents/MacOS/Emacs \
+      --subst-var-by bash ${emacs.stdenv.shell} \
+      --subst-var-by wrapperSiteLisp "$deps/share/emacs/site-lisp" \
+      --subst-var-by wrapperSiteLispNative "$deps/share/emacs/native-lisp" \
+      --subst-var-by prog "$emacs/Applications/Emacs.app/Contents/MacOS/Emacs"
+    chmod +x $out/Applications/Emacs.app/Contents/MacOS/Emacs
+    wrapProgramBinary $out/Applications/Emacs.app/Contents/MacOS/Emacs
+  fi
 
-    mkdir -p $out/share
-    # Link icons and desktop files into place
-    for dir in applications icons info man; do
-      ln -s $emacs/share/$dir $out/share/$dir
-    done
-  ''
+  mkdir -p $out/share
+  # Link icons and desktop files into place
+  for dir in applications icons info man; do
+    ln -s $emacs/share/$dir $out/share/$dir
+  done
+''

pkgs/build-support/expand-response-params/default.nix

@@ -27,7 +27,8 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    description = "Internal tool used by the nixpkgs wrapper scripts for processing response files";
+    description =
+      "Internal tool used by the nixpkgs wrapper scripts for processing response files";
     longDescription = ''
       expand-response-params is a tool that allows for obtaining a full list of all
       arguments passed in a given compiler command line including those passed via

pkgs/build-support/fake-nss/default.nix

@@ -2,17 +2,22 @@
 # Useful when packaging binaries that insist on using nss to look up
 # username/groups (like nginx).
 # /bin/sh is fine to not exist, and provided by another shim.
-{ lib, symlinkJoin, writeTextDir, runCommand, extraPasswdLines ? [], extraGroupLines ? [] }:
+{ lib, symlinkJoin, writeTextDir, runCommand, extraPasswdLines ? [ ]
+, extraGroupLines ? [ ] }:
 symlinkJoin {
   name = "fake-nss";
   paths = [
     (writeTextDir "etc/passwd" ''
       root:x:0:0:root user:/var/empty:/bin/sh
-      ${lib.concatStrings (map (line: line + "\n") extraPasswdLines)}nobody:x:65534:65534:nobody:/var/empty:/bin/sh
+      ${
+        lib.concatStrings (map (line: line + "\n") extraPasswdLines)
+      }nobody:x:65534:65534:nobody:/var/empty:/bin/sh
     '')
     (writeTextDir "etc/group" ''
       root:x:0:
-      ${lib.concatStrings (map (line: line + "\n") extraGroupLines)}nobody:x:65534:
+      ${
+        lib.concatStrings (map (line: line + "\n") extraGroupLines)
+      }nobody:x:65534:
     '')
     (writeTextDir "etc/nsswitch.conf" ''
       hosts: files dns

pkgs/build-support/fetch9front/default.nix

@@ -1,18 +1,19 @@
 { fetchgit, fetchzip, lib }:
 
-lib.makeOverridable (
-  { owner
-  , repo
-  , rev
-  , domain ? "git.9front.org"
-  , name ? "source"
-  , leaveDotGit ? false
-  , deepClone ? false
+lib.makeOverridable ({ owner, repo, rev, domain ? "git.9front.org"
+  , name ? "source", leaveDotGit ? false, deepClone ? false
   , ... # For hash agility
-  } @ args:
+  }@args:
 
   let
-    passthruAttrs = removeAttrs args [ "domain" "owner" "repo" "rev" "leaveDotGit" "deepClone" ];
+    passthruAttrs = removeAttrs args [
+      "domain"
+      "owner"
+      "repo"
+      "rev"
+      "leaveDotGit"
+      "deepClone"
+    ];
 
     useFetchGit = leaveDotGit || deepClone;
     fetcher = if useFetchGit then fetchgit else fetchzip;
@@ -26,11 +27,9 @@ lib.makeOverridable (
     } else {
       url = "https://${domain}/${owner}/${repo}/${rev}/snap.tar.gz";
 
-      passthru = {
-        inherit gitRepoUrl;
-      };
-    }) // passthruAttrs // { inherit name; };
-  in
+      passthru = { inherit gitRepoUrl; };
+    }) // passthruAttrs // {
+      inherit name;
+    };
 
-  fetcher fetcherArgs // { inherit rev; }
-)
+  in fetcher fetcherArgs // { inherit rev; })

pkgs/build-support/fetchbitbucket/default.nix

@@ -1,11 +1,11 @@
 { fetchzip, lib }:
 
-lib.makeOverridable (
-{ owner, repo, rev, name ? "source"
-, ... # For hash agility
-}@args: fetchzip ({
-  inherit name;
-  url = "https://bitbucket.org/${owner}/${repo}/get/${rev}.tar.gz";
-  meta.homepage = "https://bitbucket.org/${owner}/${repo}/";
-} // removeAttrs args [ "owner" "repo" "rev" ]) // { inherit rev; }
-)
+lib.makeOverridable ({ owner, repo, rev, name ? "source", ... # For hash agility
+  }@args:
+  fetchzip ({
+    inherit name;
+    url = "https://bitbucket.org/${owner}/${repo}/get/${rev}.tar.gz";
+    meta.homepage = "https://bitbucket.org/${owner}/${repo}/";
+  } // removeAttrs args [ "owner" "repo" "rev" ]) // {
+    inherit rev;
+  })

pkgs/build-support/fetchbower/default.nix

@@ -4,25 +4,27 @@ let
     let
       components = lib.splitString "#" version;
       hash = lib.last components;
-      ver = if builtins.length components == 1 then (cleanName version) else hash;
+      ver =
+        if builtins.length components == 1 then (cleanName version) else hash;
     in ver;
 
-  cleanName = name: lib.replaceStrings ["/" ":"] ["-" "-"] name;
+  cleanName = name: lib.replaceStrings [ "/" ":" ] [ "-" "-" ] name;
 
-  fetchbower = name: version: target: outputHash: stdenvNoCC.mkDerivation {
-    name = "${cleanName name}-${bowerVersion version}";
-    buildCommand = ''
-      fetch-bower --quiet --out=$PWD/out "${name}" "${target}" "${version}"
-      # In some cases, the result of fetchBower is different depending
-      # on the output directory (e.g. if the bower package contains
-      # symlinks). So use a local output directory before copying to
-      # $out.
-      cp -R out $out
-    '';
-    outputHashMode = "recursive";
-    outputHashAlgo = "sha256";
-    inherit outputHash;
-    nativeBuildInputs = [ bower2nix cacert ];
-  };
+  fetchbower = name: version: target: outputHash:
+    stdenvNoCC.mkDerivation {
+      name = "${cleanName name}-${bowerVersion version}";
+      buildCommand = ''
+        fetch-bower --quiet --out=$PWD/out "${name}" "${target}" "${version}"
+        # In some cases, the result of fetchBower is different depending
+        # on the output directory (e.g. if the bower package contains
+        # symlinks). So use a local output directory before copying to
+        # $out.
+        cp -R out $out
+      '';
+      outputHashMode = "recursive";
+      outputHashAlgo = "sha256";
+      inherit outputHash;
+      nativeBuildInputs = [ bower2nix cacert ];
+    };
 
 in fetchbower

pkgs/build-support/fetchcvs/default.nix

@@ -3,20 +3,18 @@
 # tag="<tagname>" (get version by tag name)
 # If you don't specify neither one date="NOW" will be used (get latest)
 
-{stdenvNoCC, cvs, openssh, lib}:
+{ stdenvNoCC, cvs, openssh, lib }:
 
-lib.makeOverridable (
-{cvsRoot, module, tag ? null, date ? null, sha256}:
+lib.makeOverridable ({ cvsRoot, module, tag ? null, date ? null, sha256 }:
 
-stdenvNoCC.mkDerivation {
-  name = "cvs-export";
-  builder = ./builder.sh;
-  nativeBuildInputs = [cvs openssh];
+  stdenvNoCC.mkDerivation {
+    name = "cvs-export";
+    builder = ./builder.sh;
+    nativeBuildInputs = [ cvs openssh ];
 
-  outputHashAlgo = "sha256";
-  outputHashMode = "recursive";
-  outputHash = sha256;
+    outputHashAlgo = "sha256";
+    outputHashMode = "recursive";
+    outputHash = sha256;
 
-  inherit cvsRoot module sha256 tag date;
-}
-)
+    inherit cvsRoot module sha256 tag date;
+  })

pkgs/build-support/fetchdarcs/default.nix

@@ -1,21 +1,15 @@
-{stdenvNoCC, darcs, cacert, lib}:
+{ stdenvNoCC, darcs, cacert, lib }:
 
-lib.makeOverridable (
-{ url
-, rev ? null
-, context ? null
-, sha256 ? ""
-, name ? "fetchdarcs"
-}:
+lib.makeOverridable
+({ url, rev ? null, context ? null, sha256 ? "", name ? "fetchdarcs" }:
 
-stdenvNoCC.mkDerivation {
-  builder = ./builder.sh;
-  nativeBuildInputs = [cacert darcs];
+  stdenvNoCC.mkDerivation {
+    builder = ./builder.sh;
+    nativeBuildInputs = [ cacert darcs ];
 
-  outputHashAlgo = "sha256";
-  outputHashMode = "recursive";
-  outputHash = sha256;
+    outputHashAlgo = "sha256";
+    outputHashMode = "recursive";
+    outputHash = sha256;
 
-  inherit url rev context name;
-}
-)
+    inherit url rev context name;
+  })

pkgs/build-support/fetchdebianpatch/default.nix

@@ -1,19 +1,16 @@
 { lib, fetchpatch }:
 
-lib.makeOverridable (
-  { pname, version, debianRevision ? null, area ? "main",
-    patch, name ? patch, hash }:
+lib.makeOverridable ({ pname, version, debianRevision ? null, area ? "main"
+  , patch, name ? patch, hash }:
   let
     inherit (lib.strings) hasPrefix substring;
-    prefix =
-      substring 0 (if hasPrefix "lib" pname then 4 else 1) pname;
-    versionString =
-      if debianRevision == null then version
-      else "${version}-${debianRevision}";
+    prefix = substring 0 (if hasPrefix "lib" pname then 4 else 1) pname;
+    versionString = if debianRevision == null then
+      version
+    else
+      "${version}-${debianRevision}";
   in fetchpatch {
     inherit name hash;
-    url =
-      "https://sources.debian.org/data/${area}/${prefix}/"
+    url = "https://sources.debian.org/data/${area}/${prefix}/"
       + "${pname}/${versionString}/debian/patches/${patch}";
-  }
-)
+  })

pkgs/build-support/fetchdocker/credentials.nix

@@ -32,8 +32,6 @@
 #    DOCKER_CREDENTIALS path
 let
   pathParts =
-   (builtins.filter
-    ({prefix, path}: "DOCKER_CREDENTIALS" == prefix)
-    builtins.nixPath);
-in
-  lib.optionalString (pathParts != []) ((builtins.head pathParts).path)
+    (builtins.filter ({ prefix, path }: "DOCKER_CREDENTIALS" == prefix)
+      builtins.nixPath);
+in lib.optionalString (pathParts != [ ]) ((builtins.head pathParts).path)

pkgs/build-support/fetchdocker/default.nix

@@ -1,53 +1,40 @@
 { stdenv, lib, coreutils, bash, gnutar, writeText }:
 let
-  stripScheme =
-    builtins.replaceStrings [ "https://" "http://" ] [ "" "" ];
-  stripNixStore =
-    s: lib.removePrefix "${builtins.storeDir}/" s;
-in
-{ name
-, registry         ? "https://registry-1.docker.io/v2/"
-, repository       ? "library"
-, imageName
-, tag
-, imageLayers
-, imageConfig
-, image            ? "${stripScheme registry}/${repository}/${imageName}:${tag}"
-}:
+  stripScheme = builtins.replaceStrings [ "https://" "http://" ] [ "" "" ];
+  stripNixStore = s: lib.removePrefix "${builtins.storeDir}/" s;
+in { name, registry ? "https://registry-1.docker.io/v2/", repository ? "library"
+, imageName, tag, imageLayers, imageConfig
+, image ? "${stripScheme registry}/${repository}/${imageName}:${tag}" }:
 
 # Make sure there are *no* slashes in the repository or container
 # names since we use these to make the output derivation name for the
 # nix-store path.
-assert null == lib.findFirst (c: "/"==c) null (lib.stringToCharacters repository);
-assert null == lib.findFirst (c: "/"==c) null (lib.stringToCharacters imageName);
+assert null
+  == lib.findFirst (c: "/" == c) null (lib.stringToCharacters repository);
+assert null
+  == lib.findFirst (c: "/" == c) null (lib.stringToCharacters imageName);
 
 let
   # Abuse paths to collapse possible double slashes
-  repoTag0 = builtins.toString (/. + "/${stripScheme registry}/${repository}/${imageName}");
+  repoTag0 = builtins.toString
+    (/. + "/${stripScheme registry}/${repository}/${imageName}");
   repoTag1 = lib.removePrefix "/" repoTag0;
 
   layers = builtins.map stripNixStore imageLayers;
 
-  manifest =
-    writeText "manifest.json" (builtins.toJSON [
-      { Config   = stripNixStore imageConfig;
-        Layers   = layers;
-        RepoTags = [ "${repoTag1}:${tag}" ];
-      }]);
+  manifest = writeText "manifest.json" (builtins.toJSON [{
+    Config = stripNixStore imageConfig;
+    Layers = layers;
+    RepoTags = [ "${repoTag1}:${tag}" ];
+  }]);
 
-  repositories =
-    writeText "repositories" (builtins.toJSON {
-      ${repoTag1} = {
-        ${tag} = lib.last layers;
-      };
-    });
+  repositories = writeText "repositories"
+    (builtins.toJSON { ${repoTag1} = { ${tag} = lib.last layers; }; });
 
-  imageFileStorePaths =
-    writeText "imageFileStorePaths.txt"
-      (lib.concatStringsSep "\n" ((lib.unique imageLayers) ++ [imageConfig]));
-in
-stdenv.mkDerivation {
-  builder     = ./fetchdocker-builder.sh;
+  imageFileStorePaths = writeText "imageFileStorePaths.txt"
+    (lib.concatStringsSep "\n" ((lib.unique imageLayers) ++ [ imageConfig ]));
+in stdenv.mkDerivation {
+  builder = ./fetchdocker-builder.sh;
   buildInputs = [ coreutils ];
   preferLocalBuild = true;
 
@@ -55,7 +42,5 @@ stdenv.mkDerivation {
   inherit bash gnutar manifest repositories;
   inherit imageFileStorePaths;
 
-  passthru = {
-    inherit image;
-  };
+  passthru = { inherit image; };
 }

pkgs/build-support/fetchdocker/fetchDockerConfig.nix

@@ -1,13 +1,10 @@
 pkgargs@{ stdenv, lib, haskellPackages, writeText, gawk }:
-let
-  generic-fetcher =
-    import ./generic-fetcher.nix pkgargs;
-in
+let generic-fetcher = import ./generic-fetcher.nix pkgargs;
 
-args@{ repository ? "library", imageName, tag, ... }:
+in args@{ repository ? "library", imageName, tag, ... }:
 
 generic-fetcher ({
   fetcher = "hocker-config";
-  name    = "${repository}_${imageName}_${tag}-config.json";
-  tag     = "unused";
+  name = "${repository}_${imageName}_${tag}-config.json";
+  tag = "unused";
 } // args)

pkgs/build-support/fetchdocker/fetchDockerLayer.nix

@@ -1,13 +1,10 @@
 pkgargs@{ stdenv, lib, haskellPackages, writeText, gawk }:
-let
-  generic-fetcher =
-    import ./generic-fetcher.nix pkgargs;
-in
+let generic-fetcher = import ./generic-fetcher.nix pkgargs;
 
-args@{ layerDigest, ... }:
+in args@{ layerDigest, ... }:
 
 generic-fetcher ({
   fetcher = "hocker-layer";
-  name    = "docker-layer-${layerDigest}.tar.gz";
-  tag     = "unused";
+  name = "docker-layer-${layerDigest}.tar.gz";
+  tag = "unused";
 } // args)

pkgs/build-support/fetchdocker/generic-fetcher.nix

@@ -1,38 +1,31 @@
 { stdenv, lib, haskellPackages, writeText, gawk }:
 let
-  awk                   = "${gawk}/bin/awk";
+  awk = "${gawk}/bin/awk";
   dockerCredentialsFile = import ./credentials.nix { inherit lib; };
-in
-{ fetcher
-, name
- , registry    ? "https://registry-1.docker.io/v2/"
- , repository  ? "library"
- , imageName
- , sha256
- , tag         ? ""
- , layerDigest ? ""
-}:
+in { fetcher, name, registry ? "https://registry-1.docker.io/v2/"
+, repository ? "library", imageName, sha256, tag ? "", layerDigest ? "" }:
 
 # There must be no slashes in the repository or container names since
 # we use these to make the output derivation name for the nix store
 # path
-assert null == lib.findFirst (c: "/"==c) null (lib.stringToCharacters repository);
-assert null == lib.findFirst (c: "/"==c) null (lib.stringToCharacters imageName);
+assert null
+  == lib.findFirst (c: "/" == c) null (lib.stringToCharacters repository);
+assert null
+  == lib.findFirst (c: "/" == c) null (lib.stringToCharacters imageName);
 
 # Only allow hocker-config and hocker-layer as fetchers for now
-assert (builtins.elem fetcher ["hocker-config" "hocker-layer"]);
+assert (builtins.elem fetcher [ "hocker-config" "hocker-layer" ]);
 
 # If layerDigest is non-empty then it must not have a 'sha256:' prefix!
-assert
-  (if layerDigest != ""
-   then !lib.hasPrefix "sha256:" layerDigest
-   else true);
+assert (if layerDigest != "" then
+  !lib.hasPrefix "sha256:" layerDigest
+else
+  true);
 
 let
   layerDigestFlag =
     lib.optionalString (layerDigest != "") "--layer ${layerDigest}";
-in
-stdenv.mkDerivation {
+in stdenv.mkDerivation {
   inherit name;
   builder = writeText "${fetcher}-builder.sh" ''
     source "$stdenv/setup"

pkgs/build-support/fetchfirefoxaddon/default.nix

@@ -1,36 +1,21 @@
-{ stdenv
-, fetchurl
-, jq
-, strip-nondeterminism
-, unzip
-, writeScript
-, zip
-}:
+{ stdenv, fetchurl, jq, strip-nondeterminism, unzip, writeScript, zip }:
 
-{ name
-, url ? null
-, sha1 ? ""
-, sha256 ? ""
-, sha512 ? ""
-, fixedExtid ? null
-, hash ? ""
-, src ? ""
-}:
+{ name, url ? null, sha1 ? "", sha256 ? "", sha512 ? "", fixedExtid ? null
+, hash ? "", src ? "" }:
 
 let
   extid = if fixedExtid == null then "nixos@${name}" else fixedExtid;
-  source = if url == null then src else
-  fetchurl {
-    url = url;
-    inherit sha1 sha256 sha512 hash;
-  };
-in
-stdenv.mkDerivation {
+  source = if url == null then
+    src
+  else
+    fetchurl {
+      url = url;
+      inherit sha1 sha256 sha512 hash;
+    };
+in stdenv.mkDerivation {
   inherit name;
 
-  passthru = {
-    inherit extid;
-  };
+  passthru = { inherit extid; };
 
   builder = writeScript "xpibuilder" ''
     source $stdenv/setup
@@ -48,10 +33,5 @@ stdenv.mkDerivation {
     rm -r "$out/$UUID"
   '';
 
-  nativeBuildInputs = [
-    jq
-    strip-nondeterminism
-    unzip
-    zip
-  ];
+  nativeBuildInputs = [ jq strip-nondeterminism unzip zip ];
 }

pkgs/build-support/fetchfirefoxaddon/tests.nix

@@ -4,18 +4,18 @@
   simple = testers.invalidateFetcherByDrvHash fetchFirefoxAddon {
     name = "image-search-options";
     # Chosen because its only 147KB
-    url = "https://addons.mozilla.org/firefox/downloads/file/3059971/image_search_options-3.0.12-fx.xpi";
+    url =
+      "https://addons.mozilla.org/firefox/downloads/file/3059971/image_search_options-3.0.12-fx.xpi";
     sha256 = "sha256-H73YWX/DKxvhEwKpWOo7orAQ7c/rQywpljeyxYxv0Gg=";
   };
-  overridden-source =
-    let
-      image-search-options = fetchurl {
-        url = "https://addons.mozilla.org/firefox/downloads/file/3059971/image_search_options-3.0.12-fx.xpi";
-        sha256 = "sha256-H73YWX/DKxvhEwKpWOo7orAQ7c/rQywpljeyxYxv0Gg=";
-      };
-    in
-    testers.invalidateFetcherByDrvHash fetchFirefoxAddon {
-      name = "image-search-options";
-      src = image-search-options;
+  overridden-source = let
+    image-search-options = fetchurl {
+      url =
+        "https://addons.mozilla.org/firefox/downloads/file/3059971/image_search_options-3.0.12-fx.xpi";
+      sha256 = "sha256-H73YWX/DKxvhEwKpWOo7orAQ7c/rQywpljeyxYxv0Gg=";
     };
+  in testers.invalidateFetcherByDrvHash fetchFirefoxAddon {
+    name = "image-search-options";
+    src = image-search-options;
+  };
 }

pkgs/build-support/fetchfossil/default.nix

@@ -1,33 +1,28 @@
-{stdenv, lib, fossil, cacert}:
+{ stdenv, lib, fossil, cacert }:
 
-{ name ? null
-, url
-, rev
-, sha256 ? ""
-, hash ? ""
-}:
+{ name ? null, url, rev, sha256 ? "", hash ? "" }:
 
 if hash != "" && sha256 != "" then
   throw "Only one of sha256 or hash can be set"
 else
-stdenv.mkDerivation {
-  name = "fossil-archive" + (lib.optionalString (name != null) "-${name}");
-  builder = ./builder.sh;
-  nativeBuildInputs = [fossil cacert];
+  stdenv.mkDerivation {
+    name = "fossil-archive" + (lib.optionalString (name != null) "-${name}");
+    builder = ./builder.sh;
+    nativeBuildInputs = [ fossil cacert ];
 
-  # Envvar docs are hard to find. A link for the future:
-  # https://www.fossil-scm.org/index.html/doc/trunk/www/env-opts.md
-  impureEnvVars = [ "http_proxy" ];
+    # Envvar docs are hard to find. A link for the future:
+    # https://www.fossil-scm.org/index.html/doc/trunk/www/env-opts.md
+    impureEnvVars = [ "http_proxy" ];
 
-  outputHashAlgo = if hash != "" then null else "sha256";
-  outputHashMode = "recursive";
-  outputHash = if hash != "" then
-    hash
-  else if sha256 != "" then
-    sha256
-  else
-    lib.fakeSha256;
+    outputHashAlgo = if hash != "" then null else "sha256";
+    outputHashMode = "recursive";
+    outputHash = if hash != "" then
+      hash
+    else if sha256 != "" then
+      sha256
+    else
+      lib.fakeSha256;
 
-  inherit url rev;
-  preferLocalBuild = true;
-}
+    inherit url rev;
+    preferLocalBuild = true;
+  }

pkgs/build-support/fetchgit/default.nix

@@ -1,110 +1,105 @@
-{lib, stdenvNoCC, git, git-lfs, cacert}: let
-  urlToName = url: rev: let
-    inherit (lib) removeSuffix splitString last;
-    base = last (splitString ":" (baseNameOf (removeSuffix "/" url)));
+{ lib, stdenvNoCC, git, git-lfs, cacert }:
+let
+  urlToName = url: rev:
+    let
+      inherit (lib) removeSuffix splitString last;
+      base = last (splitString ":" (baseNameOf (removeSuffix "/" url)));
 
-    matched = builtins.match "(.*)\\.git" base;
+      matched = builtins.match "(.*)\\.git" base;
 
-    short = builtins.substring 0 7 rev;
+      short = builtins.substring 0 7 rev;
 
-    appendShort = lib.optionalString ((builtins.match "[a-f0-9]*" rev) != null) "-${short}";
-  in "${if matched == null then base else builtins.head matched}${appendShort}";
-in
-lib.makeOverridable (
-{ url, rev ? "HEAD", sha256 ? "", hash ? "", leaveDotGit ? deepClone
-, fetchSubmodules ? true, deepClone ? false
-, branchName ? null
-, sparseCheckout ? []
-, nonConeMode ? false
-, name ? urlToName url rev
-, # Shell code executed after the file has been fetched
+      appendShort =
+        lib.optionalString ((builtins.match "[a-f0-9]*" rev) != null)
+        "-${short}";
+    in "${
+      if matched == null then base else builtins.head matched
+    }${appendShort}";
+in lib.makeOverridable ({ url, rev ? "HEAD", sha256 ? "", hash ? ""
+  , leaveDotGit ? deepClone, fetchSubmodules ? true, deepClone ? false
+  , branchName ? null, sparseCheckout ? [ ], nonConeMode ? false
+  , name ? urlToName url rev
+  , # Shell code executed after the file has been fetched
   # successfully. This can do things like check or transform the file.
-  postFetch ? ""
-, preferLocalBuild ? true
-, fetchLFS ? false
-, # Shell code to build a netrc file for BASIC auth
+  postFetch ? "", preferLocalBuild ? true, fetchLFS ? false
+  , # Shell code to build a netrc file for BASIC auth
   netrcPhase ? null
-, # Impure env vars (https://nixos.org/nix/manual/#sec-advanced-attributes)
+  , # Impure env vars (https://nixos.org/nix/manual/#sec-advanced-attributes)
   # needed for netrcPhase
-  netrcImpureEnvVars ? []
-, meta ? {}
-, allowedRequisites ? null
-}:
+  netrcImpureEnvVars ? [ ], meta ? { }, allowedRequisites ? null }:
 
-/* NOTE:
-   fetchgit has one problem: git fetch only works for refs.
-   This is because fetching arbitrary (maybe dangling) commits creates garbage collection risks
-   and checking whether a commit belongs to a ref is expensive. This may
-   change in the future when some caching is added to git (?)
-   Usually refs are either tags (refs/tags/*) or branches (refs/heads/*)
-   Cloning branches will make the hash check fail when there is an update.
-   But not all patches we want can be accessed by tags.
+  /* NOTE:
+     fetchgit has one problem: git fetch only works for refs.
+     This is because fetching arbitrary (maybe dangling) commits creates garbage collection risks
+     and checking whether a commit belongs to a ref is expensive. This may
+     change in the future when some caching is added to git (?)
+     Usually refs are either tags (refs/tags/*) or branches (refs/heads/*)
+     Cloning branches will make the hash check fail when there is an update.
+     But not all patches we want can be accessed by tags.
 
-   The workaround is getting the last n commits so that it's likely that they
-   still contain the hash we want.
+     The workaround is getting the last n commits so that it's likely that they
+     still contain the hash we want.
 
-   for now : increase depth iteratively (TODO)
+     for now : increase depth iteratively (TODO)
 
-   real fix: ask git folks to add a
-   git fetch $HASH contained in $BRANCH
-   facility because checking that $HASH is contained in $BRANCH is less
-   expensive than fetching --depth $N.
-   Even if git folks implemented this feature soon it may take years until
-   server admins start using the new version?
-*/
+     real fix: ask git folks to add a
+     git fetch $HASH contained in $BRANCH
+     facility because checking that $HASH is contained in $BRANCH is less
+     expensive than fetching --depth $N.
+     Even if git folks implemented this feature soon it may take years until
+     server admins start using the new version?
+  */
 
-assert deepClone -> leaveDotGit;
-assert nonConeMode -> (sparseCheckout != []);
+  assert deepClone -> leaveDotGit;
+  assert nonConeMode -> (sparseCheckout != [ ]);
 
-if hash != "" && sha256 != "" then
-  throw "Only one of sha256 or hash can be set"
-else if builtins.isString sparseCheckout then
+  if hash != "" && sha256 != "" then
+    throw "Only one of sha256 or hash can be set"
+  else if builtins.isString sparseCheckout then
   # Changed to throw on 2023-06-04
-  throw "Please provide directories/patterns for sparse checkout as a list of strings. Passing a (multi-line) string is not supported any more."
-else
-stdenvNoCC.mkDerivation {
-  inherit name;
-  builder = ./builder.sh;
-  fetcher = ./nix-prefetch-git;
-
-  nativeBuildInputs = [ git ]
-    ++ lib.optionals fetchLFS [ git-lfs ];
-
-  outputHashAlgo = if hash != "" then null else "sha256";
-  outputHashMode = "recursive";
-  outputHash = if hash != "" then
-    hash
-  else if sha256 != "" then
-    sha256
+    throw
+    "Please provide directories/patterns for sparse checkout as a list of strings. Passing a (multi-line) string is not supported any more."
   else
-    lib.fakeSha256;
+    stdenvNoCC.mkDerivation {
+      inherit name;
+      builder = ./builder.sh;
+      fetcher = ./nix-prefetch-git;
 
-  # git-sparse-checkout(1) says:
-  # > When the --stdin option is provided, the directories or patterns are read
-  # > from standard in as a newline-delimited list instead of from the arguments.
-  sparseCheckout = builtins.concatStringsSep "\n" sparseCheckout;
+      nativeBuildInputs = [ git ] ++ lib.optionals fetchLFS [ git-lfs ];
 
-  inherit url rev leaveDotGit fetchLFS fetchSubmodules deepClone branchName nonConeMode postFetch;
+      outputHashAlgo = if hash != "" then null else "sha256";
+      outputHashMode = "recursive";
+      outputHash = if hash != "" then
+        hash
+      else if sha256 != "" then
+        sha256
+      else
+        lib.fakeSha256;
 
-  postHook = if netrcPhase == null then null else ''
-    ${netrcPhase}
-    # required that git uses the netrc file
-    mv {,.}netrc
-    export NETRC=$PWD/.netrc
-    export HOME=$PWD
-  '';
+      # git-sparse-checkout(1) says:
+      # > When the --stdin option is provided, the directories or patterns are read
+      # > from standard in as a newline-delimited list instead of from the arguments.
+      sparseCheckout = builtins.concatStringsSep "\n" sparseCheckout;
 
-  GIT_SSL_CAINFO = "${cacert}/etc/ssl/certs/ca-bundle.crt";
+      inherit url rev leaveDotGit fetchLFS fetchSubmodules deepClone branchName
+        nonConeMode postFetch;
 
-  impureEnvVars = lib.fetchers.proxyImpureEnvVars ++ netrcImpureEnvVars ++ [
-    "GIT_PROXY_COMMAND" "NIX_GIT_SSL_CAINFO" "SOCKS_SERVER"
-  ];
+      postHook = if netrcPhase == null then
+        null
+      else ''
+        ${netrcPhase}
+        # required that git uses the netrc file
+        mv {,.}netrc
+        export NETRC=$PWD/.netrc
+        export HOME=$PWD
+      '';
 
+      GIT_SSL_CAINFO = "${cacert}/etc/ssl/certs/ca-bundle.crt";
 
-  inherit preferLocalBuild meta allowedRequisites;
+      impureEnvVars = lib.fetchers.proxyImpureEnvVars ++ netrcImpureEnvVars
+        ++ [ "GIT_PROXY_COMMAND" "NIX_GIT_SSL_CAINFO" "SOCKS_SERVER" ];
 
-  passthru = {
-    gitRepoUrl = url;
-  };
-}
-)
+      inherit preferLocalBuild meta allowedRequisites;
+
+      passthru = { gitRepoUrl = url; };
+    })

pkgs/build-support/fetchgit/tests.nix

@@ -10,10 +10,7 @@
     name = "sparse-checkout-nix-source";
     url = "https://github.com/NixOS/nix";
     rev = "9d9dbe6ed05854e03811c361a3380e09183f4f4a";
-    sparseCheckout = [
-      "src"
-      "tests"
-    ];
+    sparseCheckout = [ "src" "tests" ];
     sha256 = "sha256-g1PHGTWgAcd/+sXHo1o6AjVWCvC6HiocOfMbMh873LQ=";
   };
 
@@ -21,10 +18,7 @@
     name = "sparse-checkout-non-cone-nix-source";
     url = "https://github.com/NixOS/nix";
     rev = "9d9dbe6ed05854e03811c361a3380e09183f4f4a";
-    sparseCheckout = [
-      "src"
-      "tests"
-    ];
+    sparseCheckout = [ "src" "tests" ];
     nonConeMode = true;
     sha256 = "sha256-FknO6C/PSnMPfhUqObD4vsW4PhkwdmPa9blNzcNvJQ4=";
   };

pkgs/build-support/fetchgitea/default.nix

@@ -2,8 +2,6 @@
 
 { lib, fetchFromGitHub }:
 
-lib.makeOverridable (
-{ domain, ... }@args:
+lib.makeOverridable ({ domain, ... }@args:
 
-fetchFromGitHub ((removeAttrs args [ "domain" ]) // { githubBase = domain; })
-)
+  fetchFromGitHub ((removeAttrs args [ "domain" ]) // { githubBase = domain; }))

pkgs/build-support/fetchgithub/default.nix

@@ -1,68 +1,80 @@
 { lib, fetchgit, fetchzip }:
 
-lib.makeOverridable (
-{ owner, repo, rev, name ? "source"
-, fetchSubmodules ? false, leaveDotGit ? null
-, deepClone ? false, private ? false, forceFetchGit ? false
-, sparseCheckout ? []
-, githubBase ? "github.com", varPrefix ? null
-, meta ? { }
-, ... # For hash agility
-}@args:
+lib.makeOverridable ({ owner, repo, rev, name ? "source"
+  , fetchSubmodules ? false, leaveDotGit ? null, deepClone ? false
+  , private ? false, forceFetchGit ? false, sparseCheckout ? [ ]
+  , githubBase ? "github.com", varPrefix ? null, meta ? { }
+  , ... # For hash agility
+  }@args:
 
-let
+  let
 
-  position = (if args.meta.description or null != null
-    then builtins.unsafeGetAttrPos "description" args.meta
-    else builtins.unsafeGetAttrPos "rev" args
-  );
-  baseUrl = "https://${githubBase}/${owner}/${repo}";
-  newMeta = meta // {
-    homepage = meta.homepage or baseUrl;
-  } // lib.optionalAttrs (position != null) {
-    # to indicate where derivation originates, similar to make-derivation.nix's mkDerivation
-    position = "${position.file}:${toString position.line}";
-  };
-  passthruAttrs = removeAttrs args [ "owner" "repo" "rev" "fetchSubmodules" "forceFetchGit" "private" "githubBase" "varPrefix" ];
-  varBase = "NIX${lib.optionalString (varPrefix != null) "_${varPrefix}"}_GITHUB_PRIVATE_";
-  useFetchGit = fetchSubmodules || (leaveDotGit == true) || deepClone || forceFetchGit || (sparseCheckout != []);
-  # We prefer fetchzip in cases we don't need submodules as the hash
-  # is more stable in that case.
-  fetcher =
-    if useFetchGit then fetchgit
-    # fetchzip may not be overridable when using external tools, for example nix-prefetch
-    else if fetchzip ? override then fetchzip.override { withUnzip = false; }
-    else fetchzip;
-  privateAttrs = lib.optionalAttrs private {
-    netrcPhase = ''
-      if [ -z "''$${varBase}USERNAME" -o -z "''$${varBase}PASSWORD" ]; then
-        echo "Error: Private fetchFromGitHub requires the nix building process (nix-daemon in multi user mode) to have the ${varBase}USERNAME and ${varBase}PASSWORD env vars set." >&2
-        exit 1
-      fi
-      cat > netrc <<EOF
-      machine ${githubBase}
-              login ''$${varBase}USERNAME
-              password ''$${varBase}PASSWORD
-      EOF
-    '';
-    netrcImpureEnvVars = [ "${varBase}USERNAME" "${varBase}PASSWORD" ];
-  };
+    position = (if args.meta.description or null != null then
+      builtins.unsafeGetAttrPos "description" args.meta
+    else
+      builtins.unsafeGetAttrPos "rev" args);
+    baseUrl = "https://${githubBase}/${owner}/${repo}";
+    newMeta = meta // {
+      homepage = meta.homepage or baseUrl;
+    } // lib.optionalAttrs (position != null) {
+      # to indicate where derivation originates, similar to make-derivation.nix's mkDerivation
+      position = "${position.file}:${toString position.line}";
+    };
+    passthruAttrs = removeAttrs args [
+      "owner"
+      "repo"
+      "rev"
+      "fetchSubmodules"
+      "forceFetchGit"
+      "private"
+      "githubBase"
+      "varPrefix"
+    ];
+    varBase = "NIX${
+        lib.optionalString (varPrefix != null) "_${varPrefix}"
+      }_GITHUB_PRIVATE_";
+    useFetchGit = fetchSubmodules || (leaveDotGit == true) || deepClone
+      || forceFetchGit || (sparseCheckout != [ ]);
+    # We prefer fetchzip in cases we don't need submodules as the hash
+    # is more stable in that case.
+    fetcher = if useFetchGit then
+      fetchgit
+      # fetchzip may not be overridable when using external tools, for example nix-prefetch
+    else if fetchzip ? override then
+      fetchzip.override { withUnzip = false; }
+    else
+      fetchzip;
+    privateAttrs = lib.optionalAttrs private {
+      netrcPhase = ''
+        if [ -z "''$${varBase}USERNAME" -o -z "''$${varBase}PASSWORD" ]; then
+          echo "Error: Private fetchFromGitHub requires the nix building process (nix-daemon in multi user mode) to have the ${varBase}USERNAME and ${varBase}PASSWORD env vars set." >&2
+          exit 1
+        fi
+        cat > netrc <<EOF
+        machine ${githubBase}
+                login ''$${varBase}USERNAME
+                password ''$${varBase}PASSWORD
+        EOF
+      '';
+      netrcImpureEnvVars = [ "${varBase}USERNAME" "${varBase}PASSWORD" ];
+    };
 
-  gitRepoUrl = "${baseUrl}.git";
+    gitRepoUrl = "${baseUrl}.git";
 
-  fetcherArgs = (if useFetchGit
-    then {
-      inherit rev deepClone fetchSubmodules sparseCheckout; url = gitRepoUrl;
-    } // lib.optionalAttrs (leaveDotGit != null) { inherit leaveDotGit; }
+    fetcherArgs = (if useFetchGit then
+      {
+        inherit rev deepClone fetchSubmodules sparseCheckout;
+        url = gitRepoUrl;
+      } // lib.optionalAttrs (leaveDotGit != null) { inherit leaveDotGit; }
     else {
       url = "${baseUrl}/archive/${rev}.tar.gz";
 
-      passthru = {
-        inherit gitRepoUrl;
-      };
-    }
-  ) // privateAttrs // passthruAttrs // { inherit name; };
-in
+      passthru = { inherit gitRepoUrl; };
+    }) // privateAttrs // passthruAttrs // {
+      inherit name;
+    };
 
-fetcher fetcherArgs // { meta = newMeta; inherit rev owner repo; }
-)
+  in fetcher fetcherArgs // {
+    meta = newMeta;
+    inherit rev owner repo;
+  })

pkgs/build-support/fetchgitiles/default.nix

@@ -1,12 +1,12 @@
 { fetchzip, lib }:
 
-lib.makeOverridable (
-{ url, rev, name ? "source", ... } @ args:
+lib.makeOverridable ({ url, rev, name ? "source", ... }@args:
 
-fetchzip ({
-  inherit name;
-  url = "${url}/+archive/${rev}.tar.gz";
-  stripRoot = false;
-  meta.homepage = url;
-} // removeAttrs args [ "url" "rev" ]) // { inherit rev; }
-)
+  fetchzip ({
+    inherit name;
+    url = "${url}/+archive/${rev}.tar.gz";
+    stripRoot = false;
+    meta.homepage = url;
+  } // removeAttrs args [ "url" "rev" ]) // {
+    inherit rev;
+  })

pkgs/build-support/fetchgitlab/default.nix

@@ -1,36 +1,50 @@
 { lib, fetchgit, fetchzip }:
 
 lib.makeOverridable (
-# gitlab example
-{ owner, repo, rev, protocol ? "https", domain ? "gitlab.com", name ? "source", group ? null
-, fetchSubmodules ? false, leaveDotGit ? false
-, deepClone ? false, forceFetchGit ? false
-, sparseCheckout ? []
-, ... # For hash agility
-} @ args:
+  # gitlab example
+  { owner, repo, rev, protocol ? "https", domain ? "gitlab.com", name ? "source"
+  , group ? null, fetchSubmodules ? false, leaveDotGit ? false
+  , deepClone ? false, forceFetchGit ? false, sparseCheckout ? [ ]
+  , ... # For hash agility
+  }@args:
 
-let
-  slug = lib.concatStringsSep "/" ((lib.optional (group != null) group) ++ [ owner repo ]);
-  escapedSlug = lib.replaceStrings [ "." "/" ] [ "%2E" "%2F" ] slug;
-  escapedRev = lib.replaceStrings [ "+" "%" "/" ] [ "%2B" "%25" "%2F" ] rev;
-  passthruAttrs = removeAttrs args [ "protocol" "domain" "owner" "group" "repo" "rev" "fetchSubmodules" "forceFetchGit" "leaveDotGit" "deepClone" ];
+  let
+    slug = lib.concatStringsSep "/"
+      ((lib.optional (group != null) group) ++ [ owner repo ]);
+    escapedSlug = lib.replaceStrings [ "." "/" ] [ "%2E" "%2F" ] slug;
+    escapedRev = lib.replaceStrings [ "+" "%" "/" ] [ "%2B" "%25" "%2F" ] rev;
+    passthruAttrs = removeAttrs args [
+      "protocol"
+      "domain"
+      "owner"
+      "group"
+      "repo"
+      "rev"
+      "fetchSubmodules"
+      "forceFetchGit"
+      "leaveDotGit"
+      "deepClone"
+    ];
 
-  useFetchGit = fetchSubmodules || leaveDotGit || deepClone || forceFetchGit || (sparseCheckout != []);
-  fetcher = if useFetchGit then fetchgit else fetchzip;
+    useFetchGit = fetchSubmodules || leaveDotGit || deepClone || forceFetchGit
+      || (sparseCheckout != [ ]);
+    fetcher = if useFetchGit then fetchgit else fetchzip;
 
-  gitRepoUrl = "${protocol}://${domain}/${slug}.git";
+    gitRepoUrl = "${protocol}://${domain}/${slug}.git";
 
-  fetcherArgs = (if useFetchGit then {
-    inherit rev deepClone fetchSubmodules sparseCheckout leaveDotGit;
-    url = gitRepoUrl;
-  } else {
-    url = "${protocol}://${domain}/api/v4/projects/${escapedSlug}/repository/archive.tar.gz?sha=${escapedRev}";
+    fetcherArgs = (if useFetchGit then {
+      inherit rev deepClone fetchSubmodules sparseCheckout leaveDotGit;
+      url = gitRepoUrl;
+    } else {
+      url =
+        "${protocol}://${domain}/api/v4/projects/${escapedSlug}/repository/archive.tar.gz?sha=${escapedRev}";
 
-    passthru = {
-      inherit gitRepoUrl;
+      passthru = { inherit gitRepoUrl; };
+    }) // passthruAttrs // {
+      inherit name;
     };
-  }) // passthruAttrs // { inherit name; };
-in
 
-fetcher fetcherArgs // { meta.homepage = "${protocol}://${domain}/${slug}/"; inherit rev owner repo; }
-)
+  in fetcher fetcherArgs // {
+    meta.homepage = "${protocol}://${domain}/${slug}/";
+    inherit rev owner repo;
+  })

pkgs/build-support/fetchgitlocal/default.nix

@@ -1,13 +1,12 @@
 { runCommand, git, lib }:
 
-lib.makeOverridable (
-src:
+lib.makeOverridable (src:
 
-let
-  srcStr = toString src;
+  let
+    srcStr = toString src;
 
-  # Adds the current directory (respecting ignored files) to the git store, and returns the hash
-  gitHashFile = runCommand "put-in-git" {
+    # Adds the current directory (respecting ignored files) to the git store, and returns the hash
+    gitHashFile = runCommand "put-in-git" {
       nativeBuildInputs = [ git ];
       dummy = builtins.currentTime; # impure, do every time
       preferLocalBuild = true;
@@ -27,9 +26,9 @@ let
       mv $DOT_GIT/index-user $DOT_GIT/index # restore index
     '';
 
-  gitHash = builtins.readFile gitHashFile; # cache against git hash
+    gitHash = builtins.readFile gitHashFile; # cache against git hash
 
-  nixPath = runCommand "put-in-nix" {
+    nixPath = runCommand "put-in-nix" {
       nativeBuildInputs = [ git ];
       preferLocalBuild = true;
     } ''
@@ -40,5 +39,4 @@ let
         | tar xf - -C $out
     '';
 
-in nixPath
-)
+  in nixPath)

pkgs/build-support/fetchhg/default.nix

@@ -1,34 +1,29 @@
 { lib, stdenvNoCC, mercurial }:
-{ name ? null
-, url
-, rev ? null
-, sha256 ? null
-, hash ? null
-, fetchSubrepos ? false
-, preferLocalBuild ? true }:
+{ name ? null, url, rev ? null, sha256 ? null, hash ? null
+, fetchSubrepos ? false, preferLocalBuild ? true }:
 
 if hash != null && sha256 != null then
   throw "Only one of sha256 or hash can be set"
 else
 # TODO: statically check if mercurial as the https support if the url starts woth https.
-stdenvNoCC.mkDerivation {
-  name = "hg-archive" + (lib.optionalString (name != null) "-${name}");
-  builder = ./builder.sh;
-  nativeBuildInputs = [mercurial];
+  stdenvNoCC.mkDerivation {
+    name = "hg-archive" + (lib.optionalString (name != null) "-${name}");
+    builder = ./builder.sh;
+    nativeBuildInputs = [ mercurial ];
 
-  impureEnvVars = lib.fetchers.proxyImpureEnvVars;
+    impureEnvVars = lib.fetchers.proxyImpureEnvVars;
 
-  subrepoClause = lib.optionalString fetchSubrepos "S";
+    subrepoClause = lib.optionalString fetchSubrepos "S";
 
-  outputHashAlgo = if hash != null then null else "sha256";
-  outputHashMode = "recursive";
-  outputHash = if hash != null then
-    hash
-  else if sha256 != null then
-    sha256
-  else
-    lib.fakeSha256;
+    outputHashAlgo = if hash != null then null else "sha256";
+    outputHashMode = "recursive";
+    outputHash = if hash != null then
+      hash
+    else if sha256 != null then
+      sha256
+    else
+      lib.fakeSha256;
 
-  inherit url rev;
-  inherit preferLocalBuild;
-}
+    inherit url rev;
+    inherit preferLocalBuild;
+  }

pkgs/build-support/fetchipfs/default.nix

@@ -1,50 +1,49 @@
-{ stdenv
-, curl
-}:
+{ stdenv, curl }:
 
-{ ipfs
-, url            ? ""
-, curlOpts       ? ""
-, outputHash     ? ""
-, outputHashAlgo ? ""
-, md5            ? ""
-, sha1           ? ""
-, sha256         ? ""
-, sha512         ? ""
-, meta           ? {}
-, port           ? "8080"
-, postFetch      ? ""
-, preferLocalBuild ? true
-}:
+{ ipfs, url ? "", curlOpts ? "", outputHash ? "", outputHashAlgo ? "", md5 ? ""
+, sha1 ? "", sha256 ? "", sha512 ? "", meta ? { }, port ? "8080", postFetch ? ""
+, preferLocalBuild ? true }:
 
 let
 
-  hasHash = (outputHash != "" && outputHashAlgo != "")
-    || md5 != "" || sha1 != "" || sha256 != "" || sha512 != "";
+  hasHash = (outputHash != "" && outputHashAlgo != "") || md5 != "" || sha1
+    != "" || sha256 != "" || sha512 != "";
 
-in
+in if (!hasHash) then
+  throw "Specify sha for fetchipfs fixed-output derivation"
+else
+  stdenv.mkDerivation {
+    name = ipfs;
+    builder = ./builder.sh;
+    nativeBuildInputs = [ curl ];
 
-if (!hasHash) then throw "Specify sha for fetchipfs fixed-output derivation" else stdenv.mkDerivation {
-  name = ipfs;
-  builder = ./builder.sh;
-  nativeBuildInputs = [ curl ];
+    # New-style output content requirements.
+    outputHashAlgo = if outputHashAlgo != "" then
+      outputHashAlgo
+    else if sha512 != "" then
+      "sha512"
+    else if sha256 != "" then
+      "sha256"
+    else if sha1 != "" then
+      "sha1"
+    else
+      "md5";
+    outputHash = if outputHash != "" then
+      outputHash
+    else if sha512 != "" then
+      sha512
+    else if sha256 != "" then
+      sha256
+    else if sha1 != "" then
+      sha1
+    else
+      md5;
 
-  # New-style output content requirements.
-  outputHashAlgo = if outputHashAlgo != "" then outputHashAlgo else
-      if sha512 != "" then "sha512" else if sha256 != "" then "sha256" else if sha1 != "" then "sha1" else "md5";
-  outputHash = if outputHash != "" then outputHash else
-      if sha512 != "" then sha512 else if sha256 != "" then sha256 else if sha1 != "" then sha1 else md5;
+    outputHashMode = "recursive";
 
-  outputHashMode = "recursive";
+    inherit curlOpts postFetch ipfs url port meta;
 
-  inherit curlOpts
-          postFetch
-          ipfs
-          url
-          port
-          meta;
-
-  # Doing the download on a remote machine just duplicates network
-  # traffic, so don't do that.
-  inherit preferLocalBuild;
-}
+    # Doing the download on a remote machine just duplicates network
+    # traffic, so don't do that.
+    inherit preferLocalBuild;
+  }

pkgs/build-support/fetchmavenartifact/default.nix

@@ -8,66 +8,67 @@ let
     "https://oss.sonatype.org/content/repositories/public"
     "https://repo.typesafe.com/typesafe/releases"
   ];
-in
 
-args@
-{ # Example: "org.apache.httpcomponents"
-  groupId
-, # Example: "httpclient"
-  artifactId
-, # Example: "4.3.6"
-  version
-, # Example: "jdk11"
-  classifier ? null
+in args@{ # Example: "org.apache.httpcomponents"
+groupId, # Example: "httpclient"
+artifactId, # Example: "4.3.6"
+version, # Example: "jdk11"
+classifier ? null
 , # List of maven repositories from where to fetch the artifact.
-  # Example: [ http://oss.sonatype.org/content/repositories/public ].
-  repos ? defaultRepos
+# Example: [ http://oss.sonatype.org/content/repositories/public ].
+repos ? defaultRepos
   # The `url` and `urls` parameters, if specified should point to the JAR
   # file and will take precedence over the `repos` parameter. Only one of `url`
   # and `urls` can be specified, not both.
-, url ? ""
-, urls ? []
+, url ? "", urls ? [ ]
 , # The rest of the arguments are just forwarded to `fetchurl`.
-  ...
-}:
+... }:
 
 # only one of url and urls can be specified at a time.
-assert (url == "") || (urls == []);
+assert (url == "") || (urls == [ ]);
 # if repos is empty, then url or urls must be specified.
-assert (repos != []) || (url != "") || (urls != []);
+assert (repos != [ ]) || (url != "") || (urls != [ ]);
 
 let
-  pname = (lib.replaceStrings [ "." ] [ "_" ] groupId) + "_" + (lib.replaceStrings [ "." ] [ "_" ] artifactId);
+  pname = (lib.replaceStrings [ "." ] [ "_" ] groupId) + "_"
+    + (lib.replaceStrings [ "." ] [ "_" ] artifactId);
   suffix = lib.optionalString (classifier != null) "-${classifier}";
   filename = "${artifactId}-${version}${suffix}.jar";
   mkJarUrl = repoUrl:
     lib.concatStringsSep "/" [
       (lib.removeSuffix "/" repoUrl)
-      (lib.replaceStrings ["."] ["/"] groupId)
+      (lib.replaceStrings [ "." ] [ "/" ] groupId)
       artifactId
       version
       filename
     ];
-  urls_ =
-    if url != "" then [url]
-    else if urls != [] then urls
-    else map mkJarUrl repos;
-  jar =
-    fetchurl (
-      builtins.removeAttrs args [ "groupId" "artifactId" "version" "classifier" "repos" "url" ]
-      // { urls = urls_; name = "${pname}-${version}.jar"; }
-    );
-in
-  stdenv.mkDerivation {
-    inherit pname version;
-    dontUnpack = true;
-    # By moving the jar to $out/share/java we make it discoverable by java
-    # packages packages that mention this derivation in their buildInputs.
-    installPhase = ''
-      mkdir -p $out/share/java
-      ln -s ${jar} $out/share/java/${filename}
-    '';
-    # We also add a `jar` attribute that can be used to easily obtain the path
-    # to the downloaded jar file.
-    passthru.jar = jar;
-  }
+  urls_ = if url != "" then
+    [ url ]
+  else if urls != [ ] then
+    urls
+  else
+    map mkJarUrl repos;
+  jar = fetchurl (builtins.removeAttrs args [
+    "groupId"
+    "artifactId"
+    "version"
+    "classifier"
+    "repos"
+    "url"
+  ] // {
+    urls = urls_;
+    name = "${pname}-${version}.jar";
+  });
+in stdenv.mkDerivation {
+  inherit pname version;
+  dontUnpack = true;
+  # By moving the jar to $out/share/java we make it discoverable by java
+  # packages packages that mention this derivation in their buildInputs.
+  installPhase = ''
+    mkdir -p $out/share/java
+    ln -s ${jar} $out/share/java/${filename}
+  '';
+  # We also add a `jar` attribute that can be used to easily obtain the path
+  # to the downloaded jar file.
+  passthru.jar = jar;
+}

pkgs/build-support/fetchmtn/default.nix

@@ -1,16 +1,16 @@
 # You can specify some extra mirrors and a cache DB via options
-{lib, stdenvNoCC, monotone, defaultDBMirrors ? [], cacheDB ? "./mtn-checkout.db"}:
+{ lib, stdenvNoCC, monotone, defaultDBMirrors ? [ ]
+, cacheDB ? "./mtn-checkout.db" }:
 # dbs is a list of strings
 # each is an url for sync
 
 # selector is mtn selector, like h:org.example.branch
 #
-{name ? "mtn-checkout", dbs ? [], sha256
-, selector ? "h:" + branch, branch}:
+{ name ? "mtn-checkout", dbs ? [ ], sha256, selector ? "h:" + branch, branch }:
 
 stdenvNoCC.mkDerivation {
   builder = ./builder.sh;
-  nativeBuildInputs = [monotone];
+  nativeBuildInputs = [ monotone ];
 
   outputHashAlgo = "sha256";
   outputHashMode = "recursive";

pkgs/build-support/fetchnextcloudapp/default.nix

@@ -1,14 +1,6 @@
 { stdenv, fetchzip, applyPatches, lib, ... }:
-{ url
-, hash ? ""
-, sha256 ? ""
-, appName ? null
-, appVersion ? null
-, license
-, patches ? [ ]
-, description ? null
-, homepage ? null
-}:
+{ url, hash ? "", sha256 ? "", appName ? null, appVersion ? null, license
+, patches ? [ ], description ? null, homepage ? null }:
 applyPatches ({
   inherit patches;
   src = fetchzip {
@@ -27,9 +19,7 @@ applyPatches ({
       inherit homepage;
     } // lib.optionalAttrs (description != null) {
       longDescription = description;
-    } // lib.optionalAttrs (homepage != null) {
-      inherit homepage;
-    };
+    } // lib.optionalAttrs (homepage != null) { inherit homepage; };
   };
 } // lib.optionalAttrs (appName != null && appVersion != null) {
   name = "nextcloud-app-${appName}-${appVersion}";

pkgs/build-support/fetchpatch/default.nix

@@ -6,16 +6,10 @@
 
 { lib, fetchurl, patchutils }:
 
-{ relative ? null
-, stripLen ? 0
+{ relative ? null, stripLen ? 0
 , decode ? "cat" # custom command to decode patch e.g. base64 -d
-, extraPrefix ? null
-, excludes ? []
-, includes ? []
-, revert ? false
-, postFetch ? ""
-, ...
-}@args:
+, extraPrefix ? null, excludes ? [ ], includes ? [ ], revert ? false
+, postFetch ? "", ... }@args:
 let
   args' = if relative != null then {
     stripLen = 1 + lib.length (lib.splitString "/" relative) + stripLen;
@@ -23,12 +17,9 @@ let
   } else {
     inherit stripLen extraPrefix;
   };
-in let
-  inherit (args') stripLen extraPrefix;
-in
-lib.throwIfNot (excludes == [] || includes == [])
-  "fetchpatch: cannot use excludes and includes simultaneously"
-fetchurl ({
+in let inherit (args') stripLen extraPrefix;
+in lib.throwIfNot (excludes == [ ] || includes == [ ])
+"fetchpatch: cannot use excludes and includes simultaneously" fetchurl ({
   postFetch = ''
     tmpfile="$TMPDIR/patch"
 
@@ -40,7 +31,9 @@ fetchurl ({
     set +e
     ${decode} < "$out" > "$tmpfile"
     if [ $? -ne 0 ] || [ ! -s "$tmpfile" ]; then
-        echo 'Failed to decode patch with command "'${lib.escapeShellArg decode}'"' >&2
+        echo 'Failed to decode patch with command "'${
+          lib.escapeShellArg decode
+        }'"' >&2
         echo 'Fetched file was (limited to 128 bytes):' >&2
         od -A x -t x1z -v -N 128 "$out" >&2
         exit 1
@@ -49,17 +42,22 @@ fetchurl ({
     mv "$tmpfile" "$out"
 
     "${patchutils}/bin/lsdiff" \
-      ${lib.optionalString (relative != null) "-p1 -i ${lib.escapeShellArg relative}/'*'"} \
+      ${
+        lib.optionalString (relative != null)
+        "-p1 -i ${lib.escapeShellArg relative}/'*'"
+      } \
       "$out" \
     | sort -u | sed -e 's/[*?]/\\&/g' \
     | xargs -I{} \
       "${patchutils}/bin/filterdiff" \
       --include={} \
       --strip=${toString stripLen} \
-      ${lib.optionalString (extraPrefix != null) ''
+      ${
+        lib.optionalString (extraPrefix != null) ''
           --addoldprefix=a/${lib.escapeShellArg extraPrefix} \
           --addnewprefix=b/${lib.escapeShellArg extraPrefix} \
-      ''} \
+        ''
+      } \
       --clean "$out" > "$tmpfile"
 
     if [ ! -s "$tmpfile" ]; then
@@ -72,8 +70,14 @@ fetchurl ({
 
     ${patchutils}/bin/filterdiff \
       -p1 \
-      ${builtins.toString (builtins.map (x: "-x ${lib.escapeShellArg x}") excludes)} \
-      ${builtins.toString (builtins.map (x: "-i ${lib.escapeShellArg x}") includes)} \
+      ${
+        builtins.toString
+        (builtins.map (x: "-x ${lib.escapeShellArg x}") excludes)
+      } \
+      ${
+        builtins.toString
+        (builtins.map (x: "-i ${lib.escapeShellArg x}") includes)
+      } \
       "$tmpfile" > "$out"
 
     if [ ! -s "$out" ]; then
@@ -88,6 +92,12 @@ fetchurl ({
     mv "$tmpfile" "$out"
   '' + postFetch;
 } // builtins.removeAttrs args [
-  "relative" "stripLen" "decode" "extraPrefix" "excludes" "includes" "revert"
+  "relative"
+  "stripLen"
+  "decode"
+  "extraPrefix"
+  "excludes"
+  "includes"
+  "revert"
   "postFetch"
 ])

pkgs/build-support/fetchpatch/tests.nix

@@ -1,35 +1,49 @@
 { testers, fetchpatch, ... }:
 
-let
-  isFetchpatch2 = fetchpatch.version == 2;
-in
+let isFetchpatch2 = fetchpatch.version == 2;
 
-{
+in {
   simple = testers.invalidateFetcherByDrvHash fetchpatch {
-    url = "https://github.com/facebook/zstd/pull/2724/commits/e1f85dbca3a0ed5ef06c8396912a0914db8dea6a.patch";
-    sha256 = if isFetchpatch2 then "sha256-01BrkHLye4KOdqCw3tv7AJzIF6578pl2fl270TJFTmw=" else "sha256-PuYAqnJWAE+L9bsroOnnBGJhERW8LHrGSLtIEkKU9vg=";
+    url =
+      "https://github.com/facebook/zstd/pull/2724/commits/e1f85dbca3a0ed5ef06c8396912a0914db8dea6a.patch";
+    sha256 = if isFetchpatch2 then
+      "sha256-01BrkHLye4KOdqCw3tv7AJzIF6578pl2fl270TJFTmw="
+    else
+      "sha256-PuYAqnJWAE+L9bsroOnnBGJhERW8LHrGSLtIEkKU9vg=";
   };
 
   relative = testers.invalidateFetcherByDrvHash fetchpatch {
-    url = "https://github.com/boostorg/math/commit/7d482f6ebc356e6ec455ccb5f51a23971bf6ce5b.patch";
+    url =
+      "https://github.com/boostorg/math/commit/7d482f6ebc356e6ec455ccb5f51a23971bf6ce5b.patch";
     relative = "include";
-    sha256 = if isFetchpatch2 then "sha256-1TtmuKeNIl/Yp+sfzBMR8Ue78tPIgjqGgjasa5IN52o=" else "sha256-KlmIbixcds6GyKYt1fx5BxDIrU7msrgDdYo9Va/KJR4=";
+    sha256 = if isFetchpatch2 then
+      "sha256-1TtmuKeNIl/Yp+sfzBMR8Ue78tPIgjqGgjasa5IN52o="
+    else
+      "sha256-KlmIbixcds6GyKYt1fx5BxDIrU7msrgDdYo9Va/KJR4=";
   };
 
   full = testers.invalidateFetcherByDrvHash fetchpatch {
-    url = "https://github.com/boostorg/math/commit/7d482f6ebc356e6ec455ccb5f51a23971bf6ce5b.patch";
+    url =
+      "https://github.com/boostorg/math/commit/7d482f6ebc356e6ec455ccb5f51a23971bf6ce5b.patch";
     relative = "test";
     stripLen = 1;
     extraPrefix = "foo/bar/";
     excludes = [ "foo/bar/bernoulli_no_atomic_mp.cpp" ];
     revert = true;
-    sha256 = if isFetchpatch2 then "sha256-+UKmEbr2rIAweCav/hR/7d4ZrYV84ht/domTrHtm8sM=" else "sha256-+UKmEbr2rIAweCav/hR/7d4ZrYV84ht/domTrHtm8sM=";
+    sha256 = if isFetchpatch2 then
+      "sha256-+UKmEbr2rIAweCav/hR/7d4ZrYV84ht/domTrHtm8sM="
+    else
+      "sha256-+UKmEbr2rIAweCav/hR/7d4ZrYV84ht/domTrHtm8sM=";
   };
 
   decode = testers.invalidateFetcherByDrvHash fetchpatch {
     name = "gcc.patch";
-    url = "https://chromium.googlesource.com/aosp/platform/external/libchrome/+/f37ae3b1a873d74182a2ac31d96742ead9c1f523^!?format=TEXT";
+    url =
+      "https://chromium.googlesource.com/aosp/platform/external/libchrome/+/f37ae3b1a873d74182a2ac31d96742ead9c1f523^!?format=TEXT";
     decode = "base64 -d";
-    sha256 = if isFetchpatch2 then "sha256-oMvPlmzE51ArI+EvFxONXkqmNee39106/O1ikG0Bdso=" else "sha256-SJHk8XrutqAyoIdORlhCpBCN626P+uzed7mjKz5eQYY=";
+    sha256 = if isFetchpatch2 then
+      "sha256-oMvPlmzE51ArI+EvFxONXkqmNee39106/O1ikG0Bdso="
+    else
+      "sha256-SJHk8XrutqAyoIdORlhCpBCN626P+uzed7mjKz5eQYY=";
   };
 }

pkgs/build-support/fetchpijul/default.nix

@@ -1,59 +1,50 @@
 { lib, stdenvNoCC, pijul, cacert }:
 
-lib.makeOverridable (
-{ url
-, hash ? ""
-, change ? null
-, state ? null
-, channel ? "main"
-, name ? "fetchpijul"
-, # TODO: Changes in pijul are unordered so there's many ways to end up with the same repository state.
+lib.makeOverridable ({ url, hash ? "", change ? null, state ? null
+  , channel ? "main", name ? "fetchpijul"
+  , # TODO: Changes in pijul are unordered so there's many ways to end up with the same repository state.
   # This makes leaveDotPijul unfeasible to implement until pijul CLI implements
   # a way of reordering changes to sort them in a consistent and deterministic manner.
   # leaveDotPijul ? false
-}:
-if change != null && state != null then
-  throw "Only one of 'change' or 'state' can be set"
-else
-  stdenvNoCC.mkDerivation {
-    inherit name;
-    nativeBuildInputs = [ pijul cacert ];
-    strictDeps = true;
+  }:
+  if change != null && state != null then
+    throw "Only one of 'change' or 'state' can be set"
+  else
+    stdenvNoCC.mkDerivation {
+      inherit name;
+      nativeBuildInputs = [ pijul cacert ];
+      strictDeps = true;
 
-    dontUnpack = true;
-    dontConfigure = true;
-    dontBuild = true;
+      dontUnpack = true;
+      dontConfigure = true;
+      dontBuild = true;
 
-    installPhase = ''
-      runHook preInstall
+      installPhase = ''
+        runHook preInstall
 
-      pijul clone \
-        ''${change:+--change "$change"} \
-        ''${state:+--state "$state"} \
-        --channel "$channel" \
-        "$url" \
-        "$out"
+        pijul clone \
+          ''${change:+--change "$change"} \
+          ''${state:+--state "$state"} \
+          --channel "$channel" \
+          "$url" \
+          "$out"
 
-      runHook postInstall
-    '';
+        runHook postInstall
+      '';
 
-    fixupPhase = ''
-      runHook preFixup
+      fixupPhase = ''
+        runHook preFixup
 
-      rm -rf "$out/.pijul"
+        rm -rf "$out/.pijul"
 
-      runHook postFixup
-    '';
+        runHook postFixup
+      '';
 
-    outputHashAlgo = if hash != "" then null else "sha256";
-    outputHashMode = "recursive";
-    outputHash = if hash != "" then
-      hash
-    else
-      lib.fakeSha256;
+      outputHashAlgo = if hash != "" then null else "sha256";
+      outputHashMode = "recursive";
+      outputHash = if hash != "" then hash else lib.fakeSha256;
 
-    inherit url change state channel;
+      inherit url change state channel;
 
-    impureEnvVars = lib.fetchers.proxyImpureEnvVars;
-  }
-)
+      impureEnvVars = lib.fetchers.proxyImpureEnvVars;
+    })

pkgs/build-support/fetchpypi/default.nix

@@ -1,28 +1,33 @@
 # `fetchPypi` function for fetching artifacts from PyPI.
-{ fetchurl
-, makeOverridable
-}:
+{ fetchurl, makeOverridable }:
 
 let
-  computeUrl = {format ? "setuptools", ... } @attrs: let
-    computeWheelUrl = {pname, version, dist ? "py2.py3", python ? "py2.py3", abi ? "none", platform ? "any"}:
-    # Fetch a wheel. By default we fetch an universal wheel.
-    # See https://www.python.org/dev/peps/pep-0427/#file-name-convention for details regarding the optional arguments.
-      "https://files.pythonhosted.org/packages/${dist}/${builtins.substring 0 1 pname}/${pname}/${pname}-${version}-${python}-${abi}-${platform}.whl";
+  computeUrl = { format ? "setuptools", ... }@attrs:
+    let
+      computeWheelUrl = { pname, version, dist ? "py2.py3", python ? "py2.py3"
+        , abi ? "none", platform ? "any" }:
+        # Fetch a wheel. By default we fetch an universal wheel.
+        # See https://www.python.org/dev/peps/pep-0427/#file-name-convention for details regarding the optional arguments.
+        "https://files.pythonhosted.org/packages/${dist}/${
+          builtins.substring 0 1 pname
+        }/${pname}/${pname}-${version}-${python}-${abi}-${platform}.whl";
 
-    computeSourceUrl = {pname, version, extension ? "tar.gz"}:
-    # Fetch a source tarball.
-      "mirror://pypi/${builtins.substring 0 1 pname}/${pname}/${pname}-${version}.${extension}";
+      computeSourceUrl = { pname, version, extension ? "tar.gz" }:
+        # Fetch a source tarball.
+        "mirror://pypi/${
+          builtins.substring 0 1 pname
+        }/${pname}/${pname}-${version}.${extension}";
 
-    compute = (if format == "wheel" then computeWheelUrl
-      else if format == "setuptools" then computeSourceUrl
-      else throw "Unsupported format ${format}");
+      compute = (if format == "wheel" then
+        computeWheelUrl
+      else if format == "setuptools" then
+        computeSourceUrl
+      else
+        throw "Unsupported format ${format}");
 
-  in compute (builtins.removeAttrs attrs ["format"]);
+    in compute (builtins.removeAttrs attrs [ "format" ]);
 
-in makeOverridable( {format ? "setuptools", sha256 ? "", hash ? "", ... } @attrs:
-  let
-    url = computeUrl (builtins.removeAttrs attrs ["sha256" "hash"]) ;
-  in fetchurl {
-    inherit url sha256 hash;
-  })
+in makeOverridable
+({ format ? "setuptools", sha256 ? "", hash ? "", ... }@attrs:
+  let url = computeUrl (builtins.removeAttrs attrs [ "sha256" "hash" ]);
+  in fetchurl { inherit url sha256 hash; })

pkgs/build-support/fetchpypilegacy/default.nix

@@ -1,45 +1,38 @@
 # Fetch from PyPi legacy API as documented in https://warehouse.pypa.io/api-reference/legacy.html
-{ runCommand
-, lib
-, python3
-}:
+{ runCommand, lib, python3 }:
 {
-  # package name
-  pname,
-  # Package index
-  url ? null,
-  # Multiple package indices to consider
-  urls ? [ ],
-  # filename including extension
-  file,
-  # SRI hash
-  hash,
-  # allow overriding the derivation name
-  name ? null,
-}:
+# package name
+pname,
+# Package index
+url ? null,
+# Multiple package indices to consider
+urls ? [ ],
+# filename including extension
+file,
+# SRI hash
+hash,
+# allow overriding the derivation name
+name ? null, }:
 let
   urls' = urls ++ lib.optional (url != null) url;
 
   pathParts = lib.filter ({ prefix, path }: "NETRC" == prefix) builtins.nixPath;
-  netrc_file =
-    if (pathParts != [ ])
-    then (lib.head pathParts).path
-    else "";
+  netrc_file = if (pathParts != [ ]) then (lib.head pathParts).path else "";
 
-in
-# Assert that we have at least one URL
-assert urls' != [ ]; runCommand file
-  ({
-    nativeBuildInputs = [ python3 ];
-    impureEnvVars = lib.fetchers.proxyImpureEnvVars;
-    outputHashMode = "flat";
-    # if hash is empty select a default algo to let nix propose the actual hash.
-    outputHashAlgo = if hash == "" then "sha256" else null;
-    outputHash = hash;
-    NETRC = netrc_file;
-  }
-  // (lib.optionalAttrs (name != null) {inherit name;}))
-  ''
-    python ${./fetch-legacy.py} ${lib.concatStringsSep " " (map (url: "--url ${lib.escapeShellArg url}") urls')} --pname ${pname} --filename ${file}
-    mv ${file} $out
-  ''
+  # Assert that we have at least one URL
+in assert urls' != [ ];
+runCommand file ({
+  nativeBuildInputs = [ python3 ];
+  impureEnvVars = lib.fetchers.proxyImpureEnvVars;
+  outputHashMode = "flat";
+  # if hash is empty select a default algo to let nix propose the actual hash.
+  outputHashAlgo = if hash == "" then "sha256" else null;
+  outputHash = hash;
+  NETRC = netrc_file;
+} // (lib.optionalAttrs (name != null) { inherit name; })) ''
+  python ${./fetch-legacy.py} ${
+    lib.concatStringsSep " "
+    (map (url: "--url ${lib.escapeShellArg url}") urls')
+  } --pname ${pname} --filename ${file}
+  mv ${file} $out
+''

pkgs/build-support/fetchrepoorcz/default.nix

@@ -1,10 +1,12 @@
 { fetchzip }:
 
 # gitweb example, snapshot support is optional in gitweb
-{ repo, rev, name ? "source"
-, ... # For hash agility
-}@args: fetchzip ({
+{ repo, rev, name ? "source", ... # For hash agility
+}@args:
+fetchzip ({
   inherit name;
   url = "https://repo.or.cz/${repo}.git/snapshot/${rev}.tar.gz";
   meta.homepage = "https://repo.or.cz/${repo}.git/";
-} // removeAttrs args [ "repo" "rev" ]) // { inherit rev; }
+} // removeAttrs args [ "repo" "rev" ]) // {
+  inherit rev;
+}

pkgs/build-support/fetchrepoproject/default.nix

@@ -3,19 +3,13 @@
 { name, manifest, rev ? "HEAD", sha256
 # Optional parameters:
 , repoRepoURL ? "", repoRepoRev ? "", referenceDir ? "", manifestName ? ""
-, localManifests ? [], createMirror ? false, useArchive ? false
-}:
+, localManifests ? [ ], createMirror ? false, useArchive ? false }:
 
 assert repoRepoRev != "" -> repoRepoURL != "";
 assert createMirror -> !useArchive;
 
 let
-  inherit (lib)
-    concatMapStringsSep
-    concatStringsSep
-    fetchers
-    optionalString
-    ;
+  inherit (lib) concatMapStringsSep concatStringsSep fetchers optionalString;
 
   extraRepoInitFlags = [
     (optionalString (repoRepoURL != "") "--repo-url=${repoRepoURL}")
@@ -46,9 +40,8 @@ in stdenvNoCC.mkDerivation {
   preferLocalBuild = true;
   enableParallelBuilding = true;
 
-  impureEnvVars = fetchers.proxyImpureEnvVars ++ [
-    "GIT_PROXY_COMMAND" "SOCKS_SERVER"
-  ];
+  impureEnvVars = fetchers.proxyImpureEnvVars
+    ++ [ "GIT_PROXY_COMMAND" "SOCKS_SERVER" ];
 
   nativeBuildInputs = [ gitRepo cacert ];
 
@@ -62,9 +55,11 @@ in stdenvNoCC.mkDerivation {
     cd $out
 
     mkdir .repo
-    ${optionalString (local_manifests != []) ''
+    ${optionalString (local_manifests != [ ]) ''
       mkdir .repo/local_manifests
-      for local_manifest in ${concatMapStringsSep " " toString local_manifests}; do
+      for local_manifest in ${
+        concatMapStringsSep " " toString local_manifests
+      }; do
         cp $local_manifest .repo/local_manifests/$(stripHash $local_manifest)
       done
     ''}

pkgs/build-support/fetchs3/default.nix

@@ -1,13 +1,8 @@
 { lib, runCommand, awscli }:
 
-{ s3url
-, name ? builtins.baseNameOf s3url
-, sha256
-, region ? "us-east-1"
+{ s3url, name ? builtins.baseNameOf s3url, sha256, region ? "us-east-1"
 , credentials ? null # Default to looking at local EC2 metadata service
-, recursiveHash ? false
-, postFetch ? null
-}:
+, recursiveHash ? false, postFetch ? null }:
 
 let
   mkCredentials = { access_key_id, secret_access_key, session_token ? null }: {
@@ -16,7 +11,8 @@ let
     AWS_SESSION_TOKEN = session_token;
   };
 
-  credentialAttrs = lib.optionalAttrs (credentials != null) (mkCredentials credentials);
+  credentialAttrs =
+    lib.optionalAttrs (credentials != null) (mkCredentials credentials);
 in runCommand name ({
   nativeBuildInputs = [ awscli ];
 
@@ -31,6 +27,6 @@ in runCommand name ({
   downloadedFile="$(mktemp)"
   aws s3 cp ${s3url} $downloadedFile
   ${postFetch}
-'' else  ''
+'' else ''
   aws s3 cp ${s3url} $out
 '')

pkgs/build-support/fetchsavannah/default.nix

@@ -1,12 +1,14 @@
 { fetchzip, lib }:
 
 lib.makeOverridable (
-# cgit example, snapshot support is optional in cgit
-{ repo, rev, name ? "source"
-, ... # For hash agility
-}@args: fetchzip ({
-  inherit name;
-  url = "https://git.savannah.gnu.org/cgit/${repo}.git/snapshot/${repo}-${rev}.tar.gz";
-  meta.homepage = "https://git.savannah.gnu.org/cgit/${repo}.git/";
-} // removeAttrs args [ "repo" "rev" ]) // { inherit rev; }
-)
+  # cgit example, snapshot support is optional in cgit
+  { repo, rev, name ? "source", ... # For hash agility
+  }@args:
+  fetchzip ({
+    inherit name;
+    url =
+      "https://git.savannah.gnu.org/cgit/${repo}.git/snapshot/${repo}-${rev}.tar.gz";
+    meta.homepage = "https://git.savannah.gnu.org/cgit/${repo}.git/";
+  } // removeAttrs args [ "repo" "rev" ]) // {
+    inherit rev;
+  })

pkgs/build-support/fetchsourcehut/default.nix

@@ -1,62 +1,53 @@
 { fetchgit, fetchhg, fetchzip, lib }:
 
-let
-  inherit (lib)
-    assertOneOf
-    makeOverridable
-    optionalString
-    ;
-in
+let inherit (lib) assertOneOf makeOverridable optionalString;
 
-makeOverridable (
-{ owner
-, repo, rev
-, domain ? "sr.ht"
-, vc ? "git"
-, name ? "source"
-, fetchSubmodules ? false
-, ... # For hash agility
-} @ args:
+in makeOverridable ({ owner, repo, rev, domain ? "sr.ht", vc ? "git"
+  , name ? "source", fetchSubmodules ? false, ... # For hash agility
+  }@args:
 
-assert (assertOneOf "vc" vc [ "hg" "git" ]);
+  assert (assertOneOf "vc" vc [ "hg" "git" ]);
 
-let
-  urlFor = resource: "https://${resource}.${domain}/${owner}/${repo}";
-  baseUrl = urlFor vc;
-  baseArgs = {
-    inherit name;
-  } // removeAttrs args [
-    "owner" "repo" "rev" "domain" "vc" "name" "fetchSubmodules"
-  ];
-  vcArgs = baseArgs // {
-    inherit rev;
-    url = baseUrl;
-  };
-  fetcher = if fetchSubmodules then vc else "zip";
-  cases = {
-    git = {
-      fetch = fetchgit;
-      arguments = vcArgs // { fetchSubmodules = true; };
+  let
+    urlFor = resource: "https://${resource}.${domain}/${owner}/${repo}";
+    baseUrl = urlFor vc;
+    baseArgs = {
+      inherit name;
+    } // removeAttrs args [
+      "owner"
+      "repo"
+      "rev"
+      "domain"
+      "vc"
+      "name"
+      "fetchSubmodules"
+    ];
+    vcArgs = baseArgs // {
+      inherit rev;
+      url = baseUrl;
     };
-    hg = {
-      fetch = fetchhg;
-      arguments = vcArgs // { fetchSubrepos = true; };
-    };
-    zip = {
-      fetch = fetchzip;
-      arguments = baseArgs // {
-        url = "${baseUrl}/archive/${rev}.tar.gz";
-        postFetch = optionalString (vc == "hg") ''
-          rm -f "$out/.hg_archival.txt"
-        ''; # impure file; see #12002
-        passthru = {
-          gitRepoUrl = urlFor "git";
+    fetcher = if fetchSubmodules then vc else "zip";
+    cases = {
+      git = {
+        fetch = fetchgit;
+        arguments = vcArgs // { fetchSubmodules = true; };
+      };
+      hg = {
+        fetch = fetchhg;
+        arguments = vcArgs // { fetchSubrepos = true; };
+      };
+      zip = {
+        fetch = fetchzip;
+        arguments = baseArgs // {
+          url = "${baseUrl}/archive/${rev}.tar.gz";
+          postFetch = optionalString (vc == "hg") ''
+            rm -f "$out/.hg_archival.txt"
+          ''; # impure file; see #12002
+          passthru = { gitRepoUrl = urlFor "git"; };
         };
       };
     };
-  };
-in cases.${fetcher}.fetch cases.${fetcher}.arguments // {
-  inherit rev;
-  meta.homepage = "${baseUrl}";
-}
-)
+  in cases.${fetcher}.fetch cases.${fetcher}.arguments // {
+    inherit rev;
+    meta.homepage = "${baseUrl}";
+  })

pkgs/build-support/fetchsvn/default.nix

@@ -1,11 +1,8 @@
-{ lib, stdenvNoCC, buildPackages
-, subversion, glibcLocales, sshSupport ? true, openssh ? null
-}:
+{ lib, stdenvNoCC, buildPackages, subversion, glibcLocales, sshSupport ? true
+, openssh ? null }:
 
-{ url, rev ? "HEAD", sha256 ? "", hash ? ""
-, ignoreExternals ? false, ignoreKeywords ? false, name ? null
-, preferLocalBuild ? true
-}:
+{ url, rev ? "HEAD", sha256 ? "", hash ? "", ignoreExternals ? false
+, ignoreKeywords ? false, name ? null, preferLocalBuild ? true }:
 
 assert sshSupport -> openssh != null;
 
@@ -19,41 +16,43 @@ let
         (p: if head p == "" then tail p else p) # ~ drop final slash if any
         (reverseList (splitString "/" url));
       path = [ (removeSuffix "/" (head path_)) ] ++ (tail path_);
-    in
       # ../repo/trunk -> repo
-      if fst path == "trunk" then snd path
+    in if fst path == "trunk" then
+      snd path
       # ../repo/branches/branch -> repo-branch
-      else if snd path == "branches" then "${trd path}-${fst path}"
+    else if snd path == "branches" then
+      "${trd path}-${fst path}"
       # ../repo/tags/tag -> repo-tag
-      else if snd path == "tags" then     "${trd path}-${fst path}"
+    else if snd path == "tags" then
+      "${trd path}-${fst path}"
       # ../repo (no trunk) -> repo
-      else fst path;
+    else
+      fst path;
 
   name_ = if name == null then "${repoName}-r${toString rev}" else name;
-in
 
-if hash != "" && sha256 != "" then
+in if hash != "" && sha256 != "" then
   throw "Only one of sha256 or hash can be set"
 else
-stdenvNoCC.mkDerivation {
-  name = name_;
-  builder = ./builder.sh;
-  nativeBuildInputs = [ subversion glibcLocales ]
-    ++ lib.optional sshSupport openssh;
+  stdenvNoCC.mkDerivation {
+    name = name_;
+    builder = ./builder.sh;
+    nativeBuildInputs = [ subversion glibcLocales ]
+      ++ lib.optional sshSupport openssh;
 
-  SVN_SSH = if sshSupport then "${buildPackages.openssh}/bin/ssh" else null;
+    SVN_SSH = if sshSupport then "${buildPackages.openssh}/bin/ssh" else null;
 
-  outputHashAlgo = if hash != "" then null else "sha256";
-  outputHashMode = "recursive";
-  outputHash = if hash != "" then
-    hash
-  else if sha256 != "" then
-    sha256
-  else
-    lib.fakeSha256;
+    outputHashAlgo = if hash != "" then null else "sha256";
+    outputHashMode = "recursive";
+    outputHash = if hash != "" then
+      hash
+    else if sha256 != "" then
+      sha256
+    else
+      lib.fakeSha256;
 
-  inherit url rev ignoreExternals ignoreKeywords;
+    inherit url rev ignoreExternals ignoreKeywords;
 
-  impureEnvVars = lib.fetchers.proxyImpureEnvVars;
-  inherit preferLocalBuild;
-}
+    impureEnvVars = lib.fetchers.proxyImpureEnvVars;
+    inherit preferLocalBuild;
+  }

pkgs/build-support/fetchsvnrevision/default.nix

@@ -1,10 +1,9 @@
 runCommand: subversion: repository:
-  import (runCommand "head-revision"
-    { buildInputs = [ subversion ];
-      dummy = builtins.currentTime;
-    }
-    ''
-      rev=$(echo p | svn ls -v --depth empty  ${repository} |awk '{ print $1 }')
-      echo "[ \"$rev\" ]" > $out
-      echo Latest revision is $rev
-    '')
+import (runCommand "head-revision" {
+  buildInputs = [ subversion ];
+  dummy = builtins.currentTime;
+} ''
+  rev=$(echo p | svn ls -v --depth empty  ${repository} |awk '{ print $1 }')
+  echo "[ \"$rev\" ]" > $out
+  echo Latest revision is $rev
+'')

pkgs/build-support/fetchsvnssh/default.nix

@@ -1,11 +1,10 @@
-{stdenvNoCC, subversion, sshSupport ? true, openssh ? null, expect}:
-{username, password, url, rev ? "HEAD", sha256 ? ""}:
-
+{ stdenvNoCC, subversion, sshSupport ? true, openssh ? null, expect }:
+{ username, password, url, rev ? "HEAD", sha256 ? "" }:
 
 stdenvNoCC.mkDerivation {
   name = "svn-export-ssh";
   builder = ./builder.sh;
-  nativeBuildInputs = [subversion expect];
+  nativeBuildInputs = [ subversion expect ];
 
   outputHashAlgo = "sha256";
   outputHashMode = "recursive";

pkgs/build-support/fetchtorrent/default.nix

@@ -1,21 +1,17 @@
-{ lib, runCommand, transmission_noSystemd, rqbit, writeShellScript, formats, cacert, rsync }:
-let
-  urlRegexp = ''.*xt=urn:bt[im]h:([^&]{64}|[^&]{40}).*'';
-in
-{ url
-, name ?
-  if (builtins.match urlRegexp url) == null then
-    "bittorrent"
+{ lib, runCommand, transmission_noSystemd, rqbit, writeShellScript, formats
+, cacert, rsync }:
+let urlRegexp = ".*xt=urn:bt[im]h:([^&]{64}|[^&]{40}).*";
+in { url, name ? if (builtins.match urlRegexp url) == null then
+  "bittorrent"
+else
+  "bittorrent-" + builtins.head (builtins.match urlRegexp url), config ?
+  if (backend == "transmission") then
+    { }
   else
-    "bittorrent-" + builtins.head (builtins.match urlRegexp url)
-, config ? if (backend == "transmission") then { } else throw "json config for configuring fetchFromBitorrent only works with the transmission backend"
-, hash
-, backend ? "transmission"
-, recursiveHash ? true
-, postFetch ? ""
-, postUnpack ? ""
-, meta ? {}
-}:
+    throw
+    "json config for configuring fetchFromBitorrent only works with the transmission backend"
+, hash, backend ? "transmission", recursiveHash ? true, postFetch ? ""
+, postUnpack ? "", meta ? { } }:
 let
   afterSuccess = writeShellScript "fetch-bittorrent-done.sh" ''
     ${postUnpack}
@@ -28,11 +24,16 @@ let
     ${postFetch}
     kill $PPID
   '';
-  jsonConfig = (formats.json {}).generate "jsonConfig" config;
-in
-runCommand name {
+  jsonConfig = (formats.json { }).generate "jsonConfig" config;
+in runCommand name {
   inherit meta;
-  nativeBuildInputs = [ cacert ] ++ (if (backend == "transmission" ) then [ transmission_noSystemd ] else if (backend == "rqbit") then [ rqbit ] else throw "rqbit or transmission are the only available backends for fetchtorrent");
+  nativeBuildInputs = [ cacert ] ++ (if (backend == "transmission") then
+    [ transmission_noSystemd ]
+  else if (backend == "rqbit") then
+    [ rqbit ]
+  else
+    throw
+    "rqbit or transmission are the only available backends for fetchtorrent");
   outputHashAlgo = if hash != "" then null else "sha256";
   outputHash = hash;
   outputHashMode = if recursiveHash then "recursive" else "flat";
@@ -41,8 +42,7 @@ runCommand name {
   # by external tools, such as tools that may want to seed fetchtorrent calls
   # in nixpkgs
   inherit url;
-}
-(if (backend == "transmission") then ''
+} (if (backend == "transmission") then ''
   export HOME=$TMP
   export downloadedDirectory=$out/downloadedDirectory
   mkdir -p $downloadedDirectory
@@ -55,8 +55,7 @@ runCommand name {
   }
   trap handleChild CHLD
   transmission-cli --port $(shuf -n 1 -i 49152-65535) --portmap --finish ${afterSuccess} --download-dir $downloadedDirectory --config-dir "$HOME"/.config/transmission "$url"
-'' else
-''
+'' else ''
   export HOME=$TMP
   rqbit --disable-dht-persistence --http-api-listen-addr "127.0.0.1:$(shuf -n 1 -i 49152-65535)" download -o $out --exit-on-finish "$url"
 '')

pkgs/build-support/fetchtorrent/tests.nix

@@ -17,9 +17,8 @@ let
       free = true; # no use in advertisement
     }
   ];
-in
 
-{
+in {
   http-link = testers.invalidateFetcherByDrvHash fetchtorrent {
     url = "https://webtorrent.io/torrents/wired-cd.torrent";
     hash = "sha256-OCsC22WuanqoN6lPv5wDT5ZxPcEHDpZ1EgXGvz1SDYo=";
@@ -27,7 +26,8 @@ in
     inherit (wired-cd) meta;
   };
   magnet-link = testers.invalidateFetcherByDrvHash fetchtorrent {
-    url = "magnet:?xt=urn:btih:a88fda5954e89178c372716a6a78b8180ed4dad3&dn=The+WIRED+CD+-+Rip.+Sample.+Mash.+Share&tr=udp%3A%2F%2Fexplodie.org%3A6969&tr=udp%3A%2F%2Ftracker.coppersurfer.tk%3A6969&tr=udp%3A%2F%2Ftracker.empire-js.us%3A1337&tr=udp%3A%2F%2Ftracker.leechers-paradise.org%3A6969&tr=udp%3A%2F%2Ftracker.opentrackr.org%3A1337&tr=wss%3A%2F%2Ftracker.btorrent.xyz&tr=wss%3A%2F%2Ftracker.fastcast.nz&tr=wss%3A%2F%2Ftracker.openwebtorrent.com&ws=https%3A%2F%2Fwebtorrent.io%2Ftorrents%2F&xs=https%3A%2F%2Fwebtorrent.io%2Ftorrents%2Fwired-cd.torrent";
+    url =
+      "magnet:?xt=urn:btih:a88fda5954e89178c372716a6a78b8180ed4dad3&dn=The+WIRED+CD+-+Rip.+Sample.+Mash.+Share&tr=udp%3A%2F%2Fexplodie.org%3A6969&tr=udp%3A%2F%2Ftracker.coppersurfer.tk%3A6969&tr=udp%3A%2F%2Ftracker.empire-js.us%3A1337&tr=udp%3A%2F%2Ftracker.leechers-paradise.org%3A6969&tr=udp%3A%2F%2Ftracker.opentrackr.org%3A1337&tr=wss%3A%2F%2Ftracker.btorrent.xyz&tr=wss%3A%2F%2Ftracker.fastcast.nz&tr=wss%3A%2F%2Ftracker.openwebtorrent.com&ws=https%3A%2F%2Fwebtorrent.io%2Ftorrents%2F&xs=https%3A%2F%2Fwebtorrent.io%2Ftorrents%2Fwired-cd.torrent";
     hash = "sha256-OCsC22WuanqoN6lPv5wDT5ZxPcEHDpZ1EgXGvz1SDYo=";
     backend = "transmission";
     inherit (wired-cd) meta;
@@ -39,7 +39,8 @@ in
     inherit (wired-cd) meta;
   };
   magnet-link-rqbit = testers.invalidateFetcherByDrvHash fetchtorrent {
-    url = "magnet:?xt=urn:btih:a88fda5954e89178c372716a6a78b8180ed4dad3&dn=The+WIRED+CD+-+Rip.+Sample.+Mash.+Share&tr=udp%3A%2F%2Fexplodie.org%3A6969&tr=udp%3A%2F%2Ftracker.coppersurfer.tk%3A6969&tr=udp%3A%2F%2Ftracker.empire-js.us%3A1337&tr=udp%3A%2F%2Ftracker.leechers-paradise.org%3A6969&tr=udp%3A%2F%2Ftracker.opentrackr.org%3A1337&tr=wss%3A%2F%2Ftracker.btorrent.xyz&tr=wss%3A%2F%2Ftracker.fastcast.nz&tr=wss%3A%2F%2Ftracker.openwebtorrent.com&ws=https%3A%2F%2Fwebtorrent.io%2Ftorrents%2F&xs=https%3A%2F%2Fwebtorrent.io%2Ftorrents%2Fwired-cd.torrent";
+    url =
+      "magnet:?xt=urn:btih:a88fda5954e89178c372716a6a78b8180ed4dad3&dn=The+WIRED+CD+-+Rip.+Sample.+Mash.+Share&tr=udp%3A%2F%2Fexplodie.org%3A6969&tr=udp%3A%2F%2Ftracker.coppersurfer.tk%3A6969&tr=udp%3A%2F%2Ftracker.empire-js.us%3A1337&tr=udp%3A%2F%2Ftracker.leechers-paradise.org%3A6969&tr=udp%3A%2F%2Ftracker.opentrackr.org%3A1337&tr=wss%3A%2F%2Ftracker.btorrent.xyz&tr=wss%3A%2F%2Ftracker.fastcast.nz&tr=wss%3A%2F%2Ftracker.openwebtorrent.com&ws=https%3A%2F%2Fwebtorrent.io%2Ftorrents%2F&xs=https%3A%2F%2Fwebtorrent.io%2Ftorrents%2Fwired-cd.torrent";
     hash = "sha256-OCsC22WuanqoN6lPv5wDT5ZxPcEHDpZ1EgXGvz1SDYo=";
     backend = "rqbit";
     inherit (wired-cd) meta;

pkgs/build-support/fetchurl/boot.nix

@@ -1,13 +1,9 @@
-let mirrors = import ./mirrors.nix; in
+let mirrors = import ./mirrors.nix;
 
-{ system }:
+in { system }:
 
-{ url ? builtins.head urls
-, urls ? []
-, sha256 ? ""
-, hash ? ""
-, name ? baseNameOf (toString url)
-}:
+{ url ? builtins.head urls, urls ? [ ], sha256 ? "", hash ? ""
+, name ? baseNameOf (toString url) }:
 
 # assert exactly one hash is set
 assert hash != "" || sha256 != "";
@@ -19,7 +15,9 @@ import <nix/fetchurl.nix> {
   url =
     # Handle mirror:// URIs. Since <nix/fetchurl.nix> currently
     # supports only one URI, use the first listed mirror.
-    let m = builtins.match "mirror://([a-z]+)/(.*)" url; in
-    if m == null then url
-    else builtins.head (mirrors.${builtins.elemAt m 0}) + (builtins.elemAt m 1);
+    let m = builtins.match "mirror://([a-z]+)/(.*)" url;
+    in if m == null then
+      url
+    else
+      builtins.head (mirrors.${builtins.elemAt m 0}) + (builtins.elemAt m 1);
 }