326 lines
9.1 KiB
Nix
326 lines
9.1 KiB
Nix
{ go, cacert, git, lib, stdenv }:
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{ name ? "${args'.pname}-${args'.version}"
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, src
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, buildInputs ? []
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, nativeBuildInputs ? []
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, passthru ? {}
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, patches ? []
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# Go linker flags, passed to go via -ldflags
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, ldflags ? []
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# Go tags, passed to go via -tag
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, tags ? []
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# A function to override the go-modules derivation
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, overrideModAttrs ? (_oldAttrs : {})
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# path to go.mod and go.sum directory
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, modRoot ? "./"
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# vendorHash is the SRI hash of the vendored dependencies
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#
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# if vendorHash is null, then we won't fetch any dependencies and
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# rely on the vendor folder within the source.
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, vendorHash ? "_unset"
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# same as vendorHash, but outputHashAlgo is hardcoded to sha256
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# so regular base32 sha256 hashes work
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, vendorSha256 ? "_unset"
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# Whether to delete the vendor folder supplied with the source.
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, deleteVendor ? false
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# Whether to fetch (go mod download) and proxy the vendor directory.
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# This is useful if your code depends on c code and go mod tidy does not
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# include the needed sources to build or if any dependency has case-insensitive
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# conflicts which will produce platform dependant `vendorHash` checksums.
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, proxyVendor ? false
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# We want parallel builds by default
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, enableParallelBuilding ? true
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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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, meta ? {}
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# Not needed with buildGoModule
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, goPackagePath ? ""
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# needed for buildFlags{,Array} warning
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, buildFlags ? ""
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, buildFlagsArray ? ""
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, ... }@args':
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with builtins;
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assert goPackagePath != "" -> throw "`goPackagePath` is not needed with `buildGoModule`";
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assert (vendorSha256 == "_unset" && vendorHash == "_unset") -> throw "either `vendorHash` or `vendorSha256` is required";
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assert (vendorSha256 != "_unset" && vendorHash != "_unset") -> throw "both `vendorHash` and `vendorSha256` set. only one can be set.";
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let
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hasAnyVendorHash = (vendorSha256 != null && vendorSha256 != "_unset") || (vendorHash != null && vendorHash != "_unset");
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vendorHashType =
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if hasAnyVendorHash then
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if vendorSha256 != null && vendorSha256 != "_unset" then
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"sha256"
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else
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"sri"
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else
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null;
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args = removeAttrs args' [ "overrideModAttrs" "vendorSha256" "vendorHash" ];
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go-modules = if hasAnyVendorHash then stdenv.mkDerivation (let modArgs = {
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name = "${name}-go-modules";
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nativeBuildInputs = (args.nativeBuildInputs or []) ++ [ go git cacert ];
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inherit (args) src;
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inherit (go) GOOS GOARCH;
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prePatch = args.prePatch or "";
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patches = args.patches or [];
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patchFlags = args.patchFlags or [];
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postPatch = args.postPatch or "";
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preBuild = args.preBuild or "";
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postBuild = args.postBuild or "";
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sourceRoot = args.sourceRoot or "";
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GO111MODULE = "on";
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impureEnvVars = lib.fetchers.proxyImpureEnvVars ++ [
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"GIT_PROXY_COMMAND" "SOCKS_SERVER" "GOPROXY"
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];
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configurePhase = args.modConfigurePhase or ''
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runHook preConfigure
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export GOCACHE=$TMPDIR/go-cache
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export GOPATH="$TMPDIR/go"
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cd "${modRoot}"
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runHook postConfigure
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'';
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buildPhase = args.modBuildPhase or ''
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runHook preBuild
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'' + lib.optionalString (deleteVendor == true) ''
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if [ ! -d 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 vendor
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fi
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'' + ''
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if [ -d vendor ]; then
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echo "vendor folder exists, please set 'vendorHash = null;' or 'vendorSha256 = null;' in your expression"
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exit 10
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fi
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${if proxyVendor then ''
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mkdir -p "''${GOPATH}/pkg/mod/cache/download"
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go mod download
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'' else ''
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if (( "''${NIX_DEBUG:-0}" >= 1 )); then
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goModVendorFlags+=(-v)
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fi
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go mod vendor "''${goModVendorFlags[@]}"
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''}
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mkdir -p vendor
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runHook postBuild
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'';
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installPhase = args.modInstallPhase or ''
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runHook preInstall
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${if proxyVendor then ''
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rm -rf "''${GOPATH}/pkg/mod/cache/download/sumdb"
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cp -r --reflink=auto "''${GOPATH}/pkg/mod/cache/download" $out
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'' else ''
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cp -r --reflink=auto vendor $out
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''}
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if ! [ "$(ls -A $out)" ]; then
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echo "vendor folder is empty, please set 'vendorHash = null;' or 'vendorSha256 = null;' in your expression"
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exit 10
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fi
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runHook postInstall
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'';
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dontFixup = true;
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}; in modArgs // (
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{
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outputHashMode = "recursive";
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} // (if (vendorHashType == "sha256") then {
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outputHashAlgo = "sha256";
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outputHash = vendorSha256;
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} else {
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outputHash = vendorHash;
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}) // (lib.optionalAttrs (vendorHashType == "sri" && vendorHash == "") {
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outputHashAlgo = "sha256";
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})
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) // overrideModAttrs modArgs) else "";
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package = stdenv.mkDerivation (args // {
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nativeBuildInputs = [ go ] ++ nativeBuildInputs;
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inherit (go) GOOS GOARCH;
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GO111MODULE = "on";
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GOFLAGS = lib.optionals (!proxyVendor) [ "-mod=vendor" ] ++ lib.optionals (!allowGoReference) [ "-trimpath" ];
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inherit CGO_ENABLED;
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configurePhase = args.configurePhase or ''
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runHook preConfigure
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export GOCACHE=$TMPDIR/go-cache
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export GOPATH="$TMPDIR/go"
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export GOPROXY=off
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export GOSUMDB=off
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cd "$modRoot"
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'' + lib.optionalString hasAnyVendorHash ''
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${if proxyVendor then ''
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export GOPROXY=file://${go-modules}
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'' else ''
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rm -rf vendor
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cp -r --reflink=auto ${go-modules} vendor
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''}
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'' + ''
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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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buildPhase = args.buildPhase or ''
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runHook preBuild
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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=${lib.concatStringsSep "," tags}})
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flags+=(''${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./,g"
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else
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find . -type f -name \*$type.go -exec dirname {} \; | grep -v "/vendor/" | sort --unique | grep -v "$exclude"
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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=$GOPATH/bin/${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 $dir
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fi
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)
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'' + ''
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runHook postBuild
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'';
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doCheck = args.doCheck or true;
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checkPhase = args.checkPhase or ''
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runHook preCheck
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# We do not set trimpath for tests, in case they reference test assets
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export GOFLAGS=''${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 $out
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dir="$GOPATH/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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disallowedReferences = lib.optional (!allowGoReference) go;
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passthru = passthru // { inherit go go-modules vendorSha256 vendorHash; };
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enableParallelBuilding = enableParallelBuilding;
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meta = {
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# Add default meta information
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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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package
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