236 lines
7.7 KiB
Nix
236 lines
7.7 KiB
Nix
{ lib
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, fetchurl
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, runCommand
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, writeShellScript
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# script interpreters
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, bash
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, jdk
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, perl
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, python3
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, ruby
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, snobol4
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, tk
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# TeX Live prerequisites
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, texliveBinaries
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}:
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/* Convert an attribute set extracted from tlpdb.nix (with the deps attribute
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already processed) to a fake multi-output derivation with possible outputs
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[ "tex" "texdoc" "texsource" "tlpkg" "out" "man" "info" ]
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The multi-output is emulated as follows:
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- the main derivation is a multi-output derivation that builds links to the
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containers (tex, texdoc, ...)
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- the output attributes are replaced with the actual containers with the
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outputSpecified attribute set to true
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In this way, when texlive.withPackages picks an output such as drv.tex, it
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receives the actual container, avoiding superfluous dependencies on the other
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containers (for instance doc containers).
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*/
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# TODO stabilise a generic interface decoupled from the finer details of the
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# translation from texlive.tlpdb to tlpdb.nix
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{ pname
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, revision
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, version ? toString revision
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, extraRevision ? ""
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, extraVersion ? ""
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, sha512
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, mirrors
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, fixedHashes ? { }
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, postUnpack ? ""
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, postFixup ? ""
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, stripPrefix ? 1
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, license ? [ ]
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, hasHyphens ? false
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, hasInfo ? false
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, hasManpages ? false
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, hasRunfiles ? false
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, hasTlpkg ? false
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, extraNativeBuildInputs ? [ ]
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, ...
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}@args:
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let
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# common metadata
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name = "${pname}-${version}${extraVersion}";
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meta = {
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license = map (x: lib.licenses.${x}) license;
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# TeX Live packages should not be installed directly into the user profile
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outputsToInstall = [ ];
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longDescription = ''
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This package cannot be installed directly. Please use `texlive.withPackages`.
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'';
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# discourage nix-env from matching this package
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priority = 10;
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} // lib.optionalAttrs (args ? shortdesc) {
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description = args.shortdesc;
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};
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hasBinfiles = args ? binfiles && args.binfiles != [ ];
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hasDocfiles = sha512 ? doc;
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hasSource = sha512 ? source;
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# containers that will be built by Hydra
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outputs = lib.optional hasBinfiles "out" ++
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lib.optional hasRunfiles "tex" ++
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lib.optional hasDocfiles "texdoc" ++
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# omit building sources, since as far as we know, installing them is not common
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# the sources will still be available under drv.texsource
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# lib.optional hasSource "texsource" ++
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lib.optional hasTlpkg "tlpkg" ++
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lib.optional hasManpages "man" ++
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lib.optional hasInfo "info";
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outputDrvs = lib.getAttrs outputs containers;
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passthru = {
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# metadata
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inherit pname;
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revision = toString revision + extraRevision;
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version = version + extraVersion;
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# containers behave like specified outputs
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outputSpecified = true;
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} // lib.optionalAttrs (args ? deps) { tlDeps = args.deps; }
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// lib.optionalAttrs (args ? fontMaps) { inherit (args) fontMaps; }
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// lib.optionalAttrs (args ? formats) { inherit (args) formats; }
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// lib.optionalAttrs (args ? hyphenPatterns) { inherit (args) hyphenPatterns; }
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// lib.optionalAttrs (args ? postactionScript) { inherit (args) postactionScript; }
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// lib.optionalAttrs hasSource { inherit (containers) texsource; }
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// lib.optionalAttrs (! hasRunfiles) { tex = fakeTeX; };
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# build run, doc, source, tlpkg containers
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mkContainer = tlType: tlOutputName: sha512:
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let
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fixedHash = fixedHashes.${tlType} or null; # be graceful about missing hashes
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# the basename used by upstream (without ".tar.xz" suffix)
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# tlpkg is not a true container but a subfolder of the run container
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urlName = pname + (lib.optionalString (tlType != "run" && tlType != "tlpkg") ".${tlType}");
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urls = map (up: "${up}/archive/${urlName}.r${toString revision}.tar.xz") mirrors;
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container = runCommand "${name}-${tlOutputName}"
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({
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src = fetchurl { inherit urls sha512; };
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inherit passthru;
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# save outputName, since fixed output derivations cannot change nor override outputName
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inherit meta stripPrefix tlOutputName;
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} // lib.optionalAttrs (fixedHash != null) {
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outputHash = fixedHash;
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outputHashAlgo = "sha256";
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outputHashMode = "recursive";
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})
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(''
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mkdir "$out"
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if [[ "$tlOutputName" == "tlpkg" ]]; then
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tar -xf "$src" \
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--strip-components=1 \
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-C "$out" --anchored --exclude=tlpkg/tlpobj --keep-old-files \
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tlpkg
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else
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tar -xf "$src" \
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--strip-components="$stripPrefix" \
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-C "$out" --anchored --exclude=tlpkg --keep-old-files
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fi
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'' + postUnpack);
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in
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# remove drv.out to avoid confusing texlive.withPackages
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removeAttrs container [ "out" ]
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// outputDrvs;
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# find interpreters for the script extensions found in tlpdb
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extToInput = {
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jar = jdk;
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lua = texliveBinaries.luatex;
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py = python3;
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rb = ruby;
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sno = snobol4;
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tcl = tk;
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texlua = texliveBinaries.luatex;
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tlu = texliveBinaries.luatex;
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};
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# fake derivation for resolving dependencies in the absence of a "tex" containers
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fakeTeX = passthru
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// { inherit meta; tlOutputName = "tex"; }
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// outputDrvs;
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containers = rec {
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tex = mkContainer "run" "tex" sha512.run;
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texdoc = mkContainer "doc" "texdoc" sha512.doc;
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texsource = mkContainer "source" "texsource" sha512.source;
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tlpkg = mkContainer "tlpkg" "tlpkg" sha512.run;
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# bin container
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out = runCommand "${name}"
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{
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inherit meta;
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passthru = passthru // { tlOutputName = "out"; };
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# shebang interpreters
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buildInputs = let outName = builtins.replaceStrings [ "-" ] [ "_" ] pname; in
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[
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texliveBinaries.core.${outName} or null
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texliveBinaries.${pname} or null
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texliveBinaries.core-big.${outName} or null
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]
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++ (args.extraBuildInputs or [ ]) ++ [ bash perl ]
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++ (lib.attrVals (args.scriptExts or [ ]) extToInput);
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nativeBuildInputs = extraNativeBuildInputs;
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# absolute scripts folder
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scriptsFolder = lib.optionals (hasRunfiles && tex ? outPath) (map (f: tex.outPath + "/scripts/" + f) (lib.toList args.scriptsFolder or pname));
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# binaries info
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inherit (args) binfiles;
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binlinks = builtins.attrNames (args.binlinks or { });
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bintargets = builtins.attrValues (args.binlinks or { });
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# build scripts
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patchScripts = ./patch-scripts.sed;
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makeBinContainers = ./make-bin-containers.sh;
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}
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''
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. "$makeBinContainers"
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${args.postFixup or ""}
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'' // outputDrvs;
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# build man, info containers
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man = removeAttrs
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(runCommand "${name}-man"
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{
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inherit meta texdoc;
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passthru = passthru // { tlOutputName = "man"; };
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}
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''
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mkdir -p "$out"/share
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ln -s {"$texdoc"/doc,"$out"/share}/man
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'') [ "out" ] // outputDrvs;
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info = removeAttrs
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(runCommand "${name}-info"
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{
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inherit meta texdoc;
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passthru = passthru // { tlOutputName = "info"; };
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}
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''
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mkdir -p "$out"/share
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ln -s {"$texdoc"/doc,"$out"/share}/info
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'') [ "out" ] // outputDrvs;
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};
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in
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if outputs == [ ] then removeAttrs fakeTeX [ "outputSpecified" ] else
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runCommand name
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{
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__structuredAttrs = true;
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inherit meta outputDrvs outputs;
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passthru = removeAttrs passthru [ "outputSpecified" ];
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# force output name in case "out" is missing
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nativeBuildInputs = lib.optional (! hasBinfiles)
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(writeShellScript "force-output.sh" ''
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export out="''${${builtins.head outputs}-}"
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'');
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}
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''
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for outputName in ''${!outputs[@]} ; do
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ln -s "''${outputDrvs[$outputName]}" "''${outputs[$outputName]}"
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done
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'' // outputDrvs
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