nixpkgs/pkgs/development/go-modules/generic/default.nix
2020-05-14 07:21:52 +01:00

249 lines
6.3 KiB
Nix

{ go, cacert, git, lib, removeReferencesTo, stdenv }:
{ name ? "${args'.pname}-${args'.version}"
, src
, buildInputs ? []
, nativeBuildInputs ? []
, passthru ? {}
, patches ? []
# A function to override the go-modules derivation
, overrideModAttrs ? (_oldAttrs : {})
# path to go.mod and go.sum directory
, modRoot ? "./"
# vendorSha256 is the sha256 of the vendored dependencies
#
# if vendorSha256 is null, then we won't fetch any dependencies and
# rely on the vendor folder within the source.
, vendorSha256 ? null
# Whether to delete the vendor folder supplied with the source.
, deleteVendor ? false
, modSha256 ? null
# We want parallel builds by default
, enableParallelBuilding ? true
# Disabled flag
, disabled ? false
# Do not enable this without good reason
# IE: programs coupled with the compiler
, allowGoReference ? false
, meta ? {}
, ... }@args':
with builtins;
let
args = removeAttrs args' [ "overrideModAttrs" "vendorSha256" "disabled" ];
removeReferences = [ ] ++ lib.optional (!allowGoReference) go;
removeExpr = refs: ''remove-references-to ${lib.concatMapStrings (ref: " -t ${ref}") refs}'';
deleteFlag = if deleteVendor then "true" else "false";
go-modules = if vendorSha256 != null then go.stdenv.mkDerivation (let modArgs = {
name = "${name}-go-modules";
nativeBuildInputs = (args.nativeBuildInputs or []) ++ [ go git cacert ];
inherit (args) src;
inherit (go) GOOS GOARCH;
patches = args.patches or [];
preBuild = args.preBuild or "";
sourceRoot = args.sourceRoot or "";
GO111MODULE = "on";
impureEnvVars = lib.fetchers.proxyImpureEnvVars ++ [
"GIT_PROXY_COMMAND" "SOCKS_SERVER"
];
configurePhase = args.modConfigurePhase or ''
runHook preConfigure
export GOCACHE=$TMPDIR/go-cache
export GOPATH="$TMPDIR/go"
cd "${modRoot}"
runHook postConfigure
'';
buildPhase = args.modBuildPhase or ''
runHook preBuild
if [ ${deleteFlag} == "true" ]; then
rm -rf vendor
fi
if [ -e vendor ]; then
echo "vendor folder exists, please set 'vendorSha256=null;' or 'deleteVendor=true;' in your expression"
exit 10
fi
go mod vendor
mkdir -p vendor
runHook postBuild
'';
installPhase = args.modInstallPhase or ''
runHook preInstall
# remove cached lookup results and tiles
cp -r --reflink=auto vendor $out
runHook postInstall
'';
dontFixup = true;
}; in modArgs // (
{
outputHashMode = "recursive";
outputHashAlgo = "sha256";
outputHash = vendorSha256;
}
) // overrideModAttrs modArgs) else "";
package = go.stdenv.mkDerivation (args // {
nativeBuildInputs = [ removeReferencesTo go ] ++ nativeBuildInputs;
inherit (go) GOOS GOARCH;
GO111MODULE = "on";
GOFLAGS = "-mod=vendor";
configurePhase = args.configurePhase or ''
runHook preConfigure
export GOCACHE=$TMPDIR/go-cache
export GOPATH="$TMPDIR/go"
export GOSUMDB=off
export GOPROXY=off
cd "$modRoot"
if [ -n "${go-modules}" ]; then
rm -rf vendor
ln -s ${go-modules} vendor
fi
runHook postConfigure
'';
buildPhase = args.buildPhase or ''
runHook preBuild
buildGoDir() {
local d; local cmd;
cmd="$1"
d="$2"
. $TMPDIR/buildFlagsArray
echo "$d" | grep -q "\(/_\|examples\|Godeps\|testdata\)" && return 0
[ -n "$excludedPackages" ] && echo "$d" | grep -q "$excludedPackages" && return 0
local OUT
if ! OUT="$(go $cmd $buildFlags "''${buildFlagsArray[@]}" -v -p $NIX_BUILD_CORES $d 2>&1)"; then
if ! echo "$OUT" | grep -qE '(no( buildable| non-test)?|build constraints exclude all) Go (source )?files'; then
echo "$OUT" >&2
return 1
fi
fi
if [ -n "$OUT" ]; then
echo "$OUT" >&2
fi
return 0
}
getGoDirs() {
local type;
type="$1"
if [ -n "$subPackages" ]; then
echo "$subPackages" | sed "s,\(^\| \),\1./,g"
else
find . -type f -name \*$type.go -exec dirname {} \; | grep -v "/vendor/" | sort --unique
fi
}
if (( "''${NIX_DEBUG:-0}" >= 1 )); then
buildFlagsArray+=(-x)
fi
if [ ''${#buildFlagsArray[@]} -ne 0 ]; then
declare -p buildFlagsArray > $TMPDIR/buildFlagsArray
else
touch $TMPDIR/buildFlagsArray
fi
if [ -z "$enableParallelBuilding" ]; then
export NIX_BUILD_CORES=1
fi
for pkg in $(getGoDirs ""); do
echo "Building subPackage $pkg"
buildGoDir install "$pkg"
done
'' + lib.optionalString (stdenv.hostPlatform != stdenv.buildPlatform) ''
# normalize cross-compiled builds w.r.t. native builds
(
dir=$GOPATH/bin/${go.GOOS}_${go.GOARCH}
if [[ -n "$(shopt -s nullglob; echo $dir/*)" ]]; then
mv $dir/* $dir/..
fi
if [[ -d $dir ]]; then
rmdir $dir
fi
)
'' + ''
runHook postBuild
'';
doCheck = args.doCheck or false;
checkPhase = args.checkPhase or ''
runHook preCheck
for pkg in $(getGoDirs test); do
buildGoDir test "$pkg"
done
runHook postCheck
'';
installPhase = args.installPhase or ''
runHook preInstall
mkdir -p $out
dir="$GOPATH/bin"
[ -e "$dir" ] && cp -r $dir $out
runHook postInstall
'';
preFixup = (args.preFixup or "") + ''
find $out/bin -type f -exec ${removeExpr removeReferences} '{}' + || true
'';
strictDeps = true;
disallowedReferences = lib.optional (!allowGoReference) go;
passthru = passthru // { inherit go go-modules vendorSha256 ; };
meta = {
# Add default meta information
platforms = go.meta.platforms or lib.platforms.all;
} // meta // {
# add an extra maintainer to every package
maintainers = (meta.maintainers or []) ++
[ lib.maintainers.kalbasit ];
};
});
in if disabled then
throw "${package.name} not supported for go ${go.meta.branch}"
else if modSha256 != null then
lib.warn "modSha256 is deprecated and will be removed in the next release (20.09), use vendorSha256 instead" (
import ./old.nix { inherit go cacert git lib removeReferencesTo stdenv; } args')
else
package