diff options
Diffstat (limited to 'nix/buildGo/default.nix')
-rw-r--r-- | nix/buildGo/default.nix | 77 |
1 files changed, 47 insertions, 30 deletions
diff --git a/nix/buildGo/default.nix b/nix/buildGo/default.nix index 92951b3cb2..c93642a127 100644 --- a/nix/buildGo/default.nix +++ b/nix/buildGo/default.nix @@ -22,7 +22,8 @@ let replaceStrings toString; - inherit (pkgs) lib go runCommand fetchFromGitHub protobuf symlinkJoin; + inherit (pkgs) lib runCommand fetchFromGitHub protobuf symlinkJoin go; + goStdlib = buildStdlib go; # Helpers for low-level Go compiler invocations spaceOut = lib.concatStringsSep " "; @@ -41,8 +42,6 @@ let xFlags = x_defs: spaceOut (map (k: "-X ${k}=${x_defs."${k}"}") (attrNames x_defs)); - pathToName = p: replaceStrings [ "/" ] [ "_" ] (toString p); - # Add an `overrideGo` attribute to a function result that works # similar to `overrideAttrs`, but is used specifically for the # arguments passed to Go builders. @@ -50,16 +49,52 @@ let overrideGo = new: makeOverridable f (orig // (new orig)); }; + buildStdlib = go: runCommand "go-stdlib-${go.version}" + { + nativeBuildInputs = [ go ]; + } '' + HOME=$NIX_BUILD_TOP/home + mkdir $HOME + + goroot="$(go env GOROOT)" + cp -R "$goroot/src" "$goroot/pkg" . + + chmod -R +w . + GODEBUG=installgoroot=all GOROOT=$NIX_BUILD_TOP go install -v --trimpath std + + mkdir $out + cp -r pkg/*_*/* $out + + find $out -name '*.a' | while read -r ARCHIVE_FULL; do + ARCHIVE="''${ARCHIVE_FULL#"$out/"}" + PACKAGE="''${ARCHIVE%.a}" + echo "packagefile $PACKAGE=$ARCHIVE_FULL" + done > $out/importcfg + ''; + + importcfgCmd = { name, deps, out ? "importcfg" }: '' + echo "# nix buildGo ${name}" > "${out}" + cat "${goStdlib}/importcfg" >> "${out}" + ${lib.concatStringsSep "\n" (map (dep: '' + find "${dep}" -name '*.a' | while read -r pkgp; do + relpath="''${pkgp#"${dep}/"}" + pkgname="''${relpath%.a}" + echo "packagefile $pkgname=$pkgp" + done >> "${out}" + '') deps)} + ''; + # High-level build functions # Build a Go program out of the specified files and dependencies. program = { name, srcs, deps ? [ ], x_defs ? { } }: let uniqueDeps = allDeps (map (d: d.gopkg) deps); in runCommand name { } '' - ${go}/bin/go tool compile -o ${name}.a -trimpath=$PWD -trimpath=${go} ${includeSources uniqueDeps} ${spaceOut srcs} + ${importcfgCmd { inherit name; deps = uniqueDeps; }} + ${go}/bin/go tool compile -o ${name}.a -importcfg=importcfg -trimpath=$PWD -trimpath=${go} -p main ${includeSources uniqueDeps} ${spaceOut srcs} mkdir -p $out/bin export GOROOT_FINAL=go - ${go}/bin/go tool link -o $out/bin/${name} -buildid nix ${xFlags x_defs} ${includeLibs uniqueDeps} ${name}.a + ${go}/bin/go tool link -o $out/bin/${name} -importcfg=importcfg -buildid nix ${xFlags x_defs} ${includeLibs uniqueDeps} ${name}.a ''; # Build a Go library assembled out of the specified files. @@ -76,8 +111,8 @@ let # This is required for several popular packages (e.g. x/sys). ifAsm = do: lib.optionalString (sfiles != [ ]) do; asmBuild = ifAsm '' - ${go}/bin/go tool asm -trimpath $PWD -I $PWD -I ${go}/share/go/pkg/include -D GOOS_linux -D GOARCH_amd64 -gensymabis -o ./symabis ${spaceOut sfiles} - ${go}/bin/go tool asm -trimpath $PWD -I $PWD -I ${go}/share/go/pkg/include -D GOOS_linux -D GOARCH_amd64 -o ./asm.o ${spaceOut sfiles} + ${go}/bin/go tool asm -p ${path} -trimpath $PWD -I $PWD -I ${go}/share/go/pkg/include -D GOOS_linux -D GOARCH_amd64 -gensymabis -o ./symabis ${spaceOut sfiles} + ${go}/bin/go tool asm -p ${path} -trimpath $PWD -I $PWD -I ${go}/share/go/pkg/include -D GOOS_linux -D GOARCH_amd64 -o ./asm.o ${spaceOut sfiles} ''; asmLink = ifAsm "-symabis ./symabis -asmhdr $out/go_asm.h"; asmPack = ifAsm '' @@ -88,7 +123,8 @@ let mkdir -p $out/${path} ${srcList path (map (s: "${s}") srcs)} ${asmBuild} - ${go}/bin/go tool compile -pack ${asmLink} -o $out/${path}.a -trimpath=$PWD -trimpath=${go} -p ${path} ${includeSources uniqueDeps} ${spaceOut srcs} + ${importcfgCmd { inherit name; deps = uniqueDeps; }} + ${go}/bin/go tool compile -pack ${asmLink} -o $out/${path}.a -importcfg=importcfg -trimpath=$PWD -trimpath=${go} -p ${path} ${includeSources uniqueDeps} ${spaceOut srcs} ${asmPack} '').overrideAttrs (_: { passthru = { @@ -108,33 +144,14 @@ let # named "gopkg", and an attribute named "gobin" for binaries. external = import ./external { inherit pkgs program package; }; - # Import support libraries needed for protobuf & gRPC support - protoLibs = import ./proto.nix { - inherit external; - }; - - # Build a Go library out of the specified protobuf definition. - proto = { name, proto, path ? name, goPackage ? name, extraDeps ? [ ] }: (makeOverridable package) { - inherit name path; - deps = [ protoLibs.goProto.proto.gopkg ] ++ extraDeps; - srcs = lib.singleton (runCommand "goproto-${name}.pb.go" { } '' - cp ${proto} ${baseNameOf proto} - ${protobuf}/bin/protoc --plugin=${protoLibs.goProto.protoc-gen-go.gopkg}/bin/protoc-gen-go \ - --go_out=plugins=grpc,import_path=${baseNameOf path}:. ${baseNameOf proto} - mv ./${goPackage}/*.pb.go $out - ''); - }; - - # Build a Go library out of the specified gRPC definition. - grpc = args: proto (args // { extraDeps = [ protoLibs.goGrpc.gopkg ]; }); - in { # Only the high-level builder functions are exposed, but made # overrideable. program = makeOverridable program; package = makeOverridable package; - proto = makeOverridable proto; - grpc = makeOverridable grpc; external = makeOverridable external; + + # re-expose the Go version used + inherit go; } |