293 lines
8.6 KiB
Nix
293 lines
8.6 KiB
Nix
{ go, govers, lib, fetchgit, fetchhg, fetchbzr, rsync
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, fetchFromGitHub, stdenv }:
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{ buildInputs ? []
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, nativeBuildInputs ? []
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, passthru ? {}
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, preFixup ? ""
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, shellHook ? ""
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# We want parallel builds by default
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, enableParallelBuilding ? true
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# Go import path of the package
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, goPackagePath
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# Go package aliases
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, goPackageAliases ? [ ]
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# Extra sources to include in the gopath
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, extraSrcs ? [ ]
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# Extra gopaths containing src subfolder
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# with sources to include in the gopath
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, extraSrcPaths ? [ ]
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# go2nix dependency file
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, goDeps ? null
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# Whether to delete the vendor folder supplied with the source.
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, deleteVendor ? false
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, dontRenameImports ? false
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# Do not enable this without good reason
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# IE: programs coupled with the compiler
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, allowGoReference ? false
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, CGO_ENABLED ? go.CGO_ENABLED
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, ldflags ? [ ]
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, GOFLAGS ? [ ]
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# needed for buildFlags{,Array} warning
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, buildFlags ? ""
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, buildFlagsArray ? ""
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, meta ? {}, ... } @ args:
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let
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dep2src = goDep:
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{
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inherit (goDep) goPackagePath;
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src = if goDep.fetch.type == "git" then
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fetchgit {
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inherit (goDep.fetch) url rev sha256;
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}
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else if goDep.fetch.type == "hg" then
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fetchhg {
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inherit (goDep.fetch) url rev sha256;
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}
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else if goDep.fetch.type == "bzr" then
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fetchbzr {
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inherit (goDep.fetch) url rev sha256;
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}
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else if goDep.fetch.type == "FromGitHub" then
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fetchFromGitHub {
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inherit (goDep.fetch) owner repo rev sha256;
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}
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else abort "Unrecognized package fetch type: ${goDep.fetch.type}";
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};
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importGodeps = { depsFile }:
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map dep2src (import depsFile);
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goPath = if goDeps != null then importGodeps { depsFile = goDeps; } ++ extraSrcs
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else extraSrcs;
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package = stdenv.mkDerivation (
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(builtins.removeAttrs args [ "goPackageAliases" "disabled" "extraSrcs"]) // {
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nativeBuildInputs = [ go ]
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++ (lib.optional (!dontRenameImports) govers) ++ nativeBuildInputs;
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buildInputs = buildInputs;
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inherit (go) GOOS GOARCH GO386;
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GOHOSTARCH = go.GOHOSTARCH or null;
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GOHOSTOS = go.GOHOSTOS or null;
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inherit CGO_ENABLED enableParallelBuilding;
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GO111MODULE = "off";
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GOTOOLCHAIN = "local";
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GOFLAGS = GOFLAGS ++ lib.optional (!allowGoReference) "-trimpath" ;
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GOARM = toString (lib.intersectLists [(stdenv.hostPlatform.parsed.cpu.version or "")] ["5" "6" "7"]);
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# If not set to an explicit value, set the buildid empty for reproducibility.
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ldflags = ldflags ++ lib.optional (!lib.any (lib.hasPrefix "-buildid=") ldflags) "-buildid=";
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configurePhase = args.configurePhase or (''
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runHook preConfigure
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# Extract the source
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cd "$NIX_BUILD_TOP"
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mkdir -p "go/src/$(dirname "$goPackagePath")"
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mv "$sourceRoot" "go/src/$goPackagePath"
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'' + lib.optionalString deleteVendor ''
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if [ ! -d "go/src/$goPackagePath/vendor" ]; then
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echo "vendor folder does not exist, 'deleteVendor' is not needed"
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exit 10
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else
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rm -rf "go/src/$goPackagePath/vendor"
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fi
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'' + lib.optionalString (goDeps != null) ''
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if [ -d "go/src/$goPackagePath/vendor" ]; then
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echo "vendor folder exists, 'goDeps' is not needed"
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exit 10
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fi
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'' + lib.flip lib.concatMapStrings goPath ({ src, goPackagePath }: ''
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mkdir goPath
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(cd goPath; unpackFile "${src}")
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mkdir -p "go/src/$(dirname "${goPackagePath}")"
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chmod -R u+w goPath/*
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mv goPath/* "go/src/${goPackagePath}"
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rmdir goPath
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'') + (lib.optionalString (extraSrcPaths != []) ''
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${rsync}/bin/rsync -a ${lib.concatMapStringsSep " " (p: "${p}/src") extraSrcPaths} go
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'') + ''
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export GOPATH=$NIX_BUILD_TOP/go:$GOPATH
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export GOCACHE=$TMPDIR/go-cache
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# currently pie is only enabled by default in pkgsMusl
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# this will respect the `hardening{Disable,Enable}` flags if set
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if [[ $NIX_HARDENING_ENABLE =~ "pie" ]]; then
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export GOFLAGS="-buildmode=pie $GOFLAGS"
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fi
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runHook postConfigure
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'');
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renameImports = args.renameImports or (
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let
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inputsWithAliases = lib.filter (x: x ? goPackageAliases)
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(buildInputs ++ (args.propagatedBuildInputs or [ ]));
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rename = to: from: "echo Renaming '${from}' to '${to}'; govers -d -m ${from} ${to}";
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renames = p: lib.concatMapStringsSep "\n" (rename p.goPackagePath) p.goPackageAliases;
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in lib.concatMapStringsSep "\n" renames inputsWithAliases);
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buildPhase = args.buildPhase or (''
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runHook preBuild
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runHook renameImports
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exclude='\(/_\|examples\|Godeps\|testdata'
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if [[ -n "$excludedPackages" ]]; then
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IFS=' ' read -r -a excludedArr <<<$excludedPackages
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printf -v excludedAlternates '%s\\|' "''${excludedArr[@]}"
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excludedAlternates=''${excludedAlternates%\\|} # drop final \| added by printf
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exclude+='\|'"$excludedAlternates"
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fi
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exclude+='\)'
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buildGoDir() {
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local cmd="$1" dir="$2"
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. $TMPDIR/buildFlagsArray
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declare -a flags
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flags+=($buildFlags "''${buildFlagsArray[@]}")
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flags+=(''${tags:+-tags=''${tags// /,}})
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flags+=(''${ldflags:+-ldflags="$ldflags"})
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flags+=("-p" "$NIX_BUILD_CORES")
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if [ "$cmd" = "test" ]; then
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flags+=(-vet=off)
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flags+=($checkFlags)
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fi
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local OUT
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if ! OUT="$(go $cmd "''${flags[@]}" $dir 2>&1)"; then
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if ! echo "$OUT" | grep -qE '(no( buildable| non-test)?|build constraints exclude all) Go (source )?files'; then
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echo "$OUT" >&2
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return 1
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fi
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fi
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if [ -n "$OUT" ]; then
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echo "$OUT" >&2
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fi
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return 0
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}
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getGoDirs() {
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local type;
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type="$1"
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if [ -n "$subPackages" ]; then
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echo "$subPackages" | sed "s,\(^\| \),\1$goPackagePath/,g"
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else
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pushd "$NIX_BUILD_TOP/go/src" >/dev/null
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find "$goPackagePath" -type f -name \*$type.go -exec dirname {} \; | grep -v "/vendor/" | sort | uniq | grep -v "$exclude"
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popd >/dev/null
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fi
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}
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if (( "''${NIX_DEBUG:-0}" >= 1 )); then
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buildFlagsArray+=(-x)
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fi
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if [ ''${#buildFlagsArray[@]} -ne 0 ]; then
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declare -p buildFlagsArray > $TMPDIR/buildFlagsArray
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else
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touch $TMPDIR/buildFlagsArray
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fi
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if [ -z "$enableParallelBuilding" ]; then
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export NIX_BUILD_CORES=1
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fi
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for pkg in $(getGoDirs ""); do
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echo "Building subPackage $pkg"
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buildGoDir install "$pkg"
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done
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'' + lib.optionalString (stdenv.hostPlatform != stdenv.buildPlatform) ''
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# normalize cross-compiled builds w.r.t. native builds
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(
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dir=$NIX_BUILD_TOP/go/bin/${go.GOOS}_${go.GOARCH}
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if [[ -n "$(shopt -s nullglob; echo $dir/*)" ]]; then
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mv $dir/* $dir/..
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fi
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if [[ -d $dir ]]; then
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rmdir $dir
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fi
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)
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'' + ''
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runHook postBuild
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'');
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doCheck = args.doCheck or false;
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checkPhase = args.checkPhase or ''
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runHook preCheck
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# We do not set trimpath for tests, in case they reference test assets
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export GOFLAGS=''${GOFLAGS//-trimpath/}
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for pkg in $(getGoDirs test); do
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buildGoDir test "$pkg"
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done
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runHook postCheck
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'';
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installPhase = args.installPhase or ''
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runHook preInstall
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mkdir -p $out
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dir="$NIX_BUILD_TOP/go/bin"
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[ -e "$dir" ] && cp -r $dir $out
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runHook postInstall
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'';
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strictDeps = true;
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shellHook = ''
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d=$(mktemp -d "--suffix=-$name")
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'' + toString (map (dep: ''
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mkdir -p "$d/src/$(dirname "${dep.goPackagePath}")"
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ln -s "${dep.src}" "$d/src/${dep.goPackagePath}"
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''
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) goPath) + ''
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export GOPATH=${lib.concatStringsSep ":" ( ["$d"] ++ ["$GOPATH"] ++ ["$PWD"] ++ extraSrcPaths)}
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'' + shellHook;
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disallowedReferences = lib.optional (!allowGoReference) go
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++ lib.optional (!dontRenameImports) govers;
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passthru = passthru //
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{ inherit go; } //
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lib.optionalAttrs (goPackageAliases != []) { inherit goPackageAliases; };
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meta = {
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# Add default meta information
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homepage = "https://${goPackagePath}";
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platforms = go.meta.platforms or lib.platforms.all;
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} // meta;
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});
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in
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lib.warnIf (buildFlags != "" || buildFlagsArray != "")
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"Use the `ldflags` and/or `tags` attributes instead of `buildFlags`/`buildFlagsArray`"
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lib.warnIf (builtins.elem "-buildid=" ldflags) "`-buildid=` is set by default as ldflag by buildGoModule"
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lib.warnIf (builtins.elem "-trimpath" GOFLAGS) "`-trimpath` is added by default to GOFLAGS by buildGoModule when allowGoReference isn't set to true"
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package
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