forked from mirrors/nixpkgs
d363da72cc
--distdir is now used in the installCheckPhase for prefetched repositories. That's simpler, more robust and easier to extend in the future. Note that `name` argument of fetchurl was removed because it changed the basename of the generated file and bazel uses this basename for its cache behavior.
501 lines
19 KiB
Nix
501 lines
19 KiB
Nix
{ stdenv, callPackage, lib, fetchurl, fetchFromGitHub, runCommand, runCommandCC, makeWrapper
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# this package (through the fixpoint glass)
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, bazel
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, lr, xe, zip, unzip, bash, writeCBin, coreutils
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, which, gawk, gnused, gnutar, gnugrep, gzip, findutils
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# updater
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, python3, writeScript
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# Apple dependencies
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, cctools, libcxx, CoreFoundation, CoreServices, Foundation
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# Allow to independently override the jdks used to build and run respectively
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, buildJdk, runJdk
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, buildJdkName
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, runtimeShell
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# Always assume all markers valid (don't redownload dependencies).
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# Also, don't clean up environment variables.
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, enableNixHacks ? false
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, gcc-unwrapped
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, autoPatchelfHook
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}:
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let
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version = "0.27.0";
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src = fetchurl {
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url = "https://github.com/bazelbuild/bazel/releases/download/${version}/bazel-${version}-dist.zip";
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sha256 = "0yn662dzgfr8ls4avfl12k5sr4f210bab12wml18bh4sjlxhs263";
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};
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# Update with `eval $(nix-build -A bazel.updater)`,
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# then add new dependencies from the dict in ./src-deps.json as required.
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srcDeps = lib.attrsets.attrValues srcDepsSet;
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srcDepsSet =
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let
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srcs = (builtins.fromJSON (builtins.readFile ./src-deps.json));
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toFetchurl = d: lib.attrsets.nameValuePair d.name (fetchurl {
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urls = d.urls;
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sha256 = d.sha256;
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});
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in builtins.listToAttrs (map toFetchurl [
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srcs.desugar_jdk_libs
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srcs.io_bazel_skydoc
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srcs.bazel_skylib
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srcs.io_bazel_rules_sass
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(if stdenv.hostPlatform.isDarwin
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then srcs.${"java_tools_javac11_darwin-v2.0.zip"}
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else srcs.${"java_tools_javac11_linux-v2.0.zip"})
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srcs.${"coverage_output_generator-v1.0.zip"}
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srcs.build_bazel_rules_nodejs
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srcs.${"android_tools_pkg-0.4.tar.gz"}
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]);
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distDir = runCommand "bazel-deps" {} ''
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mkdir -p $out
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for i in ${builtins.toString srcDeps}; do cp $i $out/$(stripHash $i); done
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'';
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defaultShellPath = lib.makeBinPath
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# Keep this list conservative. For more exotic tools, prefer to use
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# @rules_nixpkgs to pull in tools from the nix repository. Example:
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#
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# WORKSPACE:
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#
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# nixpkgs_git_repository(
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# name = "nixpkgs",
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# revision = "def5124ec8367efdba95a99523dd06d918cb0ae8",
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# )
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#
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# # This defines an external Bazel workspace.
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# nixpkgs_package(
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# name = "bison",
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# repositories = { "nixpkgs": "@nixpkgs//:default.nix" },
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# )
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#
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# some/BUILD.bazel:
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#
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# genrule(
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# ...
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# cmd = "$(location @bison//:bin/bison) -other -args",
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# tools = [
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# ...
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# "@bison//:bin/bison",
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# ],
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# )
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#
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[ bash coreutils findutils gawk gnugrep gnutar gnused gzip which unzip ];
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# Java toolchain used for the build and tests
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javaToolchain = "@bazel_tools//tools/jdk:toolchain_host${buildJdkName}";
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platforms = lib.platforms.linux ++ lib.platforms.darwin;
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# This repository is fetched by bazel at runtime
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# however it contains prebuilt java binaries, with wrong interpreter
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# and libraries path.
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# We prefetch it, patch it, and override it in a global bazelrc.
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system = if stdenv.hostPlatform.isDarwin then "darwin" else "linux";
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remote_java_tools = stdenv.mkDerivation {
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name = "remote_java_tools_${system}";
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src = srcDepsSet."java_tools_javac11_${system}-v2.0.zip";
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nativeBuildInputs = [ autoPatchelfHook unzip ];
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buildInputs = [ gcc-unwrapped ];
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sourceRoot = ".";
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buildPhase = ''
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mkdir $out;
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'';
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installPhase = ''
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cp -Ra * $out/
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touch $out/WORKSPACE
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'';
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};
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in
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stdenv.mkDerivation rec {
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name = "bazel-${version}";
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meta = with lib; {
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homepage = "https://github.com/bazelbuild/bazel/";
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description = "Build tool that builds code quickly and reliably";
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license = licenses.asl20;
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maintainers = [ maintainers.mboes ];
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inherit platforms;
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};
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inherit src;
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sourceRoot = ".";
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patches = [
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# On Darwin, the last argument to gcc is coming up as an empty string. i.e: ''
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# This is breaking the build of any C target. This patch removes the last
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# argument if it's found to be an empty string.
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./trim-last-argument-to-gcc-if-empty.patch
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./python-stub-path-fix.patch
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] ++ lib.optional enableNixHacks ./nix-hacks.patch;
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# Additional tests that check bazel’s functionality. Execute
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#
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# nix-build . -A bazel.tests
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#
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# in the nixpkgs checkout root to exercise them locally.
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passthru.tests =
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let
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runLocal = name: attrs: script:
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let
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attrs' = removeAttrs attrs [ "buildInputs" ];
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buildInputs = [ python3 ] ++ (attrs.buildInputs or []);
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in
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runCommandCC name ({
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inherit buildInputs;
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preferLocalBuild = true;
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meta.platforms = platforms;
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} // attrs') script;
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# bazel wants to extract itself into $install_dir/install every time it runs,
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# so let’s do that only once.
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extracted = bazelPkg:
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let install_dir =
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# `install_base` field printed by `bazel info`, minus the hash.
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# yes, this path is kinda magic. Sorry.
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"$HOME/.cache/bazel/_bazel_nixbld";
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in runLocal "bazel-extracted-homedir" { passthru.install_dir = install_dir; } ''
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export HOME=$(mktemp -d)
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touch WORKSPACE # yeah, everything sucks
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install_base="$(${bazelPkg}/bin/bazel info | grep install_base)"
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# assert it’s actually below install_dir
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[[ "$install_base" =~ ${install_dir} ]] \
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|| (echo "oh no! $install_base but we are \
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trying to copy ${install_dir} to $out instead!"; exit 1)
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cp -R ${install_dir} $out
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'';
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bazelTest = { name, bazelScript, workspaceDir, bazelPkg, buildInputs ? [] }:
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let
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be = extracted bazelPkg;
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in runLocal name { inherit buildInputs; } (
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# skip extraction caching on Darwin, because nobody knows how Darwin works
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(lib.optionalString (!stdenv.hostPlatform.isDarwin) ''
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# set up home with pre-unpacked bazel
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export HOME=$(mktemp -d)
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mkdir -p ${be.install_dir}
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cp -R ${be}/install ${be.install_dir}
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# https://stackoverflow.com/questions/47775668/bazel-how-to-skip-corrupt-installation-on-centos6
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# Bazel checks whether the mtime of the install dir files
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# is >9 years in the future, otherwise it extracts itself again.
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# see PosixFileMTime::IsUntampered in src/main/cpp/util
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# What the hell bazel.
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${lr}/bin/lr -0 -U ${be.install_dir} | ${xe}/bin/xe -N0 -0 touch --date="9 years 6 months" {}
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'')
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+
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''
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# Note https://github.com/bazelbuild/bazel/issues/5763#issuecomment-456374609
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# about why to create a subdir for the workspace.
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cp -r ${workspaceDir} wd && chmod u+w wd && cd wd
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${bazelScript}
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touch $out
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'');
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bazelWithNixHacks = bazel.override { enableNixHacks = true; };
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bazel-examples = fetchFromGitHub {
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owner = "bazelbuild";
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repo = "examples";
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rev = "5d8c8961a2516ebf875787df35e98cadd08d43dc";
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sha256 = "03c1bwlq5bs3hg96v4g4pg2vqwhqq6w538h66rcpw02f83yy7fs8";
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};
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in {
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bashTools = callPackage ./bash-tools-test.nix { inherit runLocal bazelTest; };
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cpp = callPackage ./cpp-test.nix { inherit runLocal bazelTest bazel-examples; };
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java = callPackage ./java-test.nix { inherit runLocal bazelTest bazel-examples; };
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protobuf = callPackage ./protobuf-test.nix { inherit runLocal bazelTest; };
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pythonBinPath = callPackage ./python-bin-path-test.nix{ inherit runLocal bazelTest; };
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bashToolsWithNixHacks = callPackage ./bash-tools-test.nix { inherit runLocal bazelTest; bazel = bazelWithNixHacks; };
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cppWithNixHacks = callPackage ./cpp-test.nix { inherit runLocal bazelTest bazel-examples; bazel = bazelWithNixHacks; };
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javaWithNixHacks = callPackage ./java-test.nix { inherit runLocal bazelTest bazel-examples; bazel = bazelWithNixHacks; };
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protobufWithNixHacks = callPackage ./protobuf-test.nix { inherit runLocal bazelTest; bazel = bazelWithNixHacks; };
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pythonBinPathWithNixHacks = callPackage ./python-bin-path-test.nix{ inherit runLocal bazelTest; bazel = bazelWithNixHacks; };
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};
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# update the list of workspace dependencies
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passthru.updater = writeScript "update-bazel-deps.sh" ''
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#!${runtimeShell}
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cat ${runCommand "bazel-deps.json" {} ''
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${unzip}/bin/unzip ${src} WORKSPACE
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${python3}/bin/python3 ${./update-srcDeps.py} ./WORKSPACE > $out
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''} > ${builtins.toString ./src-deps.json}
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'';
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# Necessary for the tests to pass on Darwin with sandbox enabled.
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# Bazel starts a local server and needs to bind a local address.
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__darwinAllowLocalNetworking = true;
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# Bazel expects several utils to be available in Bash even without PATH. Hence this hack.
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customBash = writeCBin "bash" ''
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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extern char **environ;
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int main(int argc, char *argv[]) {
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char *path = getenv("PATH");
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char *pathToAppend = "${defaultShellPath}";
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char *newPath;
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if (path != NULL) {
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int length = strlen(path) + 1 + strlen(pathToAppend) + 1;
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newPath = malloc(length * sizeof(char));
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snprintf(newPath, length, "%s:%s", path, pathToAppend);
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} else {
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newPath = pathToAppend;
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}
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setenv("PATH", newPath, 1);
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execve("${bash}/bin/bash", argv, environ);
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return 0;
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}
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'';
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postPatch = let
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darwinPatches = ''
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# Disable Bazel's Xcode toolchain detection which would configure compilers
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# and linkers from Xcode instead of from PATH
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export BAZEL_USE_CPP_ONLY_TOOLCHAIN=1
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# Explicitly configure gcov since we don't have it on Darwin, so autodetection fails
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export GCOV=${coreutils}/bin/false
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# Framework search paths aren't added by bintools hook
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# https://github.com/NixOS/nixpkgs/pull/41914
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export NIX_LDFLAGS="$NIX_LDFLAGS -F${CoreFoundation}/Library/Frameworks -F${CoreServices}/Library/Frameworks -F${Foundation}/Library/Frameworks"
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# libcxx includes aren't added by libcxx hook
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# https://github.com/NixOS/nixpkgs/pull/41589
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export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE -isystem ${libcxx}/include/c++/v1"
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# don't use system installed Xcode to run clang, use Nix clang instead
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sed -i -e "s;/usr/bin/xcrun clang;${stdenv.cc}/bin/clang $NIX_CFLAGS_COMPILE $NIX_LDFLAGS -framework CoreFoundation;g" \
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scripts/bootstrap/compile.sh \
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src/tools/xcode/realpath/BUILD \
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src/tools/xcode/stdredirect/BUILD \
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tools/osx/BUILD
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# nixpkgs's libSystem cannot use pthread headers directly, must import GCD headers instead
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sed -i -e "/#include <pthread\/spawn.h>/i #include <dispatch/dispatch.h>" src/main/cpp/blaze_util_darwin.cc
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# clang installed from Xcode has a compatibility wrapper that forwards
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# invocations of gcc to clang, but vanilla clang doesn't
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sed -i -e 's;_find_generic(repository_ctx, "gcc", "CC", overriden_tools);_find_generic(repository_ctx, "clang", "CC", overriden_tools);g' tools/cpp/unix_cc_configure.bzl
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sed -i -e 's;/usr/bin/libtool;${cctools}/bin/libtool;g' tools/cpp/unix_cc_configure.bzl
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wrappers=( tools/cpp/osx_cc_wrapper.sh tools/cpp/osx_cc_wrapper.sh.tpl )
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for wrapper in "''${wrappers[@]}"; do
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sed -i -e "s,/usr/bin/install_name_tool,${cctools}/bin/install_name_tool,g" $wrapper
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done
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'';
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genericPatches = ''
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# Substitute python's stub shebang to plain python path. (see TODO add pr URL)
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# See also `postFixup` where python is added to $out/nix-support
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substituteInPlace src/main/java/com/google/devtools/build/lib/bazel/rules/python/python_stub_template.txt\
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--replace "/usr/bin/env python" "${python3}/bin/python" \
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--replace "NIX_STORE_PYTHON_PATH" "${python3}/bin/python" \
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# md5sum is part of coreutils
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sed -i 's|/sbin/md5|md5sum|' \
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src/BUILD
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# substituteInPlace is rather slow, so prefilter the files with grep
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grep -rlZ /bin src/main/java/com/google/devtools | while IFS="" read -r -d "" path; do
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# If you add more replacements here, you must change the grep above!
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# Only files containing /bin are taken into account.
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substituteInPlace "$path" \
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--replace /bin/bash ${customBash}/bin/bash \
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--replace /usr/bin/env ${coreutils}/bin/env \
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--replace /bin/true ${coreutils}/bin/true
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done
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# bazel test runner include references to /bin/bash
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substituteInPlace tools/build_rules/test_rules.bzl \
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--replace /bin/bash ${customBash}/bin/bash
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# Fixup scripts that generate scripts. Not fixed up by patchShebangs below.
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substituteInPlace scripts/bootstrap/compile.sh \
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--replace /bin/bash ${customBash}/bin/bash
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# add nix environment vars to .bazelrc
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cat >> .bazelrc <<EOF
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build --distdir=${distDir}
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fetch --distdir=${distDir}
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build --copt="$(echo $NIX_CFLAGS_COMPILE | sed -e 's/ /" --copt="/g')"
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build --host_copt="$(echo $NIX_CFLAGS_COMPILE | sed -e 's/ /" --host_copt="/g')"
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build --linkopt="-Wl,$(echo $NIX_LDFLAGS | sed -e 's/ /" --linkopt="-Wl,/g')"
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build --host_linkopt="-Wl,$(echo $NIX_LDFLAGS | sed -e 's/ /" --host_linkopt="-Wl,/g')"
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build --host_javabase='@local_jdk//:jdk'
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build --host_java_toolchain='${javaToolchain}'
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EOF
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# add the same environment vars to compile.sh
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sed -e "/\$command \\\\$/a --copt=\"$(echo $NIX_CFLAGS_COMPILE | sed -e 's/ /" --copt=\"/g')\" \\\\" \
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-e "/\$command \\\\$/a --host_copt=\"$(echo $NIX_CFLAGS_COMPILE | sed -e 's/ /" --host_copt=\"/g')\" \\\\" \
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-e "/\$command \\\\$/a --linkopt=\"-Wl,$(echo $NIX_LDFLAGS | sed -e 's/ /" --linkopt=\"-Wl,/g')\" \\\\" \
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-e "/\$command \\\\$/a --host_linkopt=\"-Wl,$(echo $NIX_LDFLAGS | sed -e 's/ /" --host_linkopt=\"-Wl,/g')\" \\\\" \
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-e "/\$command \\\\$/a --host_javabase='@local_jdk//:jdk' \\\\" \
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-e "/\$command \\\\$/a --host_java_toolchain='${javaToolchain}' \\\\" \
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-i scripts/bootstrap/compile.sh
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||
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# --experimental_strict_action_env (which will soon become the
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# default, see bazelbuild/bazel#2574) hardcodes the default
|
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# action environment to a value that on NixOS at least is bogus.
|
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# So we hardcode it to something useful.
|
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substituteInPlace \
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src/main/java/com/google/devtools/build/lib/bazel/rules/BazelRuleClassProvider.java \
|
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--replace /bin:/usr/bin ${defaultShellPath}
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||
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||
# This is necessary to avoid:
|
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# "error: no visible @interface for 'NSDictionary' declares the selector
|
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# 'initWithContentsOfURL:error:'"
|
||
# This can be removed when the apple_sdk is upgraded beyond 10.13+
|
||
sed -i '/initWithContentsOfURL:versionPlistUrl/ {
|
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N
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s/error:nil\];/\];/
|
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}' tools/osx/xcode_locator.m
|
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|
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# append the PATH with defaultShellPath in tools/bash/runfiles/runfiles.bash
|
||
echo "PATH=\$PATH:${defaultShellPath}" >> runfiles.bash.tmp
|
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cat tools/bash/runfiles/runfiles.bash >> runfiles.bash.tmp
|
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mv runfiles.bash.tmp tools/bash/runfiles/runfiles.bash
|
||
|
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patchShebangs .
|
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# bazel reads its system bazelrc in /etc
|
||
# override this path to a builtin one
|
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substituteInPlace \
|
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src/main/cpp/option_processor.cc \
|
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--replace BAZEL_SYSTEM_BAZELRC_PATH "\"$out/etc/bazelrc\""
|
||
'';
|
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in lib.optionalString stdenv.hostPlatform.isDarwin darwinPatches
|
||
+ genericPatches;
|
||
|
||
buildInputs = [
|
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buildJdk
|
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python3
|
||
];
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||
|
||
# when a command can’t be found in a bazel build, you might also
|
||
# need to add it to `defaultShellPath`.
|
||
nativeBuildInputs = [
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zip
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python3
|
||
unzip
|
||
makeWrapper
|
||
which
|
||
customBash
|
||
] ++ lib.optionals (stdenv.isDarwin) [ cctools libcxx CoreFoundation CoreServices Foundation ];
|
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|
||
# Bazel makes extensive use of symlinks in the WORKSPACE.
|
||
# This causes problems with infinite symlinks if the build output is in the same location as the
|
||
# Bazel WORKSPACE. This is why before executing the build, the source code is moved into a
|
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# subdirectory.
|
||
# Failing to do this causes "infinite symlink expansion detected"
|
||
preBuildPhases = ["preBuildPhase"];
|
||
preBuildPhase = ''
|
||
mkdir bazel_src
|
||
shopt -s dotglob extglob
|
||
mv !(bazel_src) bazel_src
|
||
'';
|
||
|
||
buildPhase = ''
|
||
# Increasing memory during compilation might be necessary.
|
||
# export BAZEL_JAVAC_OPTS="-J-Xmx2g -J-Xms200m"
|
||
./bazel_src/compile.sh
|
||
./bazel_src/scripts/generate_bash_completion.sh \
|
||
--bazel=./bazel_src/output/bazel \
|
||
--output=./bazel_src/output/bazel-complete.bash \
|
||
--prepend=./bazel_src/scripts/bazel-complete-header.bash \
|
||
--prepend=./bazel_src/scripts/bazel-complete-template.bash
|
||
'';
|
||
|
||
installPhase = ''
|
||
mkdir -p $out/bin
|
||
|
||
# official wrapper scripts that searches for $WORKSPACE_ROOT/tools/bazel
|
||
# if it can’t find something in tools, it calls $out/bin/bazel-real
|
||
cp ./bazel_src/scripts/packages/bazel.sh $out/bin/bazel
|
||
mv ./bazel_src/output/bazel $out/bin/bazel-real
|
||
|
||
wrapProgram "$out/bin/bazel" --add-flags --server_javabase="${runJdk}"
|
||
|
||
# generates the system bazelrc
|
||
# warning: the name of the repository depends on the system, hence
|
||
# the reference to .name
|
||
mkdir $out/etc
|
||
echo "build --override_repository=${remote_java_tools.name}=${remote_java_tools}" > $out/etc/bazelrc
|
||
|
||
# shell completion files
|
||
mkdir -p $out/share/bash-completion/completions $out/share/zsh/site-functions
|
||
mv ./bazel_src/output/bazel-complete.bash $out/share/bash-completion/completions/bazel
|
||
cp ./bazel_src/scripts/zsh_completion/_bazel $out/share/zsh/site-functions/
|
||
'';
|
||
|
||
doInstallCheck = true;
|
||
installCheckPhase = ''
|
||
export TEST_TMPDIR=$(pwd)
|
||
|
||
hello_test () {
|
||
$out/bin/bazel test --distdir=${distDir} \
|
||
--test_output=errors \
|
||
--java_toolchain='${javaToolchain}' \
|
||
examples/cpp:hello-success_test \
|
||
examples/java-native/src/test/java/com/example/myproject:hello
|
||
}
|
||
|
||
cd ./bazel_src
|
||
|
||
# test whether $WORKSPACE_ROOT/tools/bazel works
|
||
|
||
mkdir -p tools
|
||
cat > tools/bazel <<"EOF"
|
||
#!${runtimeShell} -e
|
||
exit 1
|
||
EOF
|
||
chmod +x tools/bazel
|
||
|
||
# first call should fail if tools/bazel is used
|
||
! hello_test
|
||
|
||
cat > tools/bazel <<"EOF"
|
||
#!${runtimeShell} -e
|
||
exec "$BAZEL_REAL" "$@"
|
||
EOF
|
||
|
||
# second call succeeds because it defers to $out/bin/bazel-real
|
||
hello_test
|
||
'';
|
||
|
||
# Save paths to hardcoded dependencies so Nix can detect them.
|
||
postFixup = ''
|
||
mkdir -p $out/nix-support
|
||
echo "${customBash} ${defaultShellPath}" >> $out/nix-support/depends
|
||
# The templates get tar’d up into a .jar,
|
||
# so nix can’t detect python is needed in the runtime closure
|
||
echo "${python3}" >> $out/nix-support/depends
|
||
'';
|
||
|
||
dontStrip = true;
|
||
dontPatchELF = true;
|
||
}
|