nixpkgs/pkgs/development/tools/build-managers/bazel/bazel_5/default.nix
r2r-dev ed55d1f607
bazel_5: Explicitly add a dependency on bazel-rc
Co-authored-by: Uri Baghin <uri@canva.com>
2022-01-25 12:23:48 +01:00

670 lines
26 KiB
Nix
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

{ stdenv, callPackage, lib, fetchurl, fetchpatch, fetchFromGitHub, installShellFiles
, runCommand, runCommandCC, makeWrapper, recurseIntoAttrs
# this package (through the fixpoint glass)
, bazel_self
# needed only for the updater
, bazel_4
, lr, xe, zip, unzip, bash, writeCBin, coreutils
, which, gawk, gnused, gnutar, gnugrep, gzip, findutils
# updater
, python27, python3, writeScript
# Apple dependencies
, cctools, libcxx, CoreFoundation, CoreServices, Foundation
# Allow to independently override the jdks used to build and run respectively
, buildJdk, runJdk
, runtimeShell
# Downstream packages for tests
, bazel-watcher
# Always assume all markers valid (this is needed because we remove markers; they are non-deterministic).
# Also, don't clean up environment variables (so that NIX_ environment variables are passed to compilers).
, enableNixHacks ? false
, gcc-unwrapped
, autoPatchelfHook
, file
, substituteAll
, writeTextFile
}:
let
version = "5.0.0";
sourceRoot = ".";
src = fetchurl {
url = "https://github.com/bazelbuild/bazel/releases/download/${version}/bazel-${version}-dist.zip";
sha256 = "By3WLSN9vBHgusAuEY2MLbTQujugnxoOseKkYPuEGds=";
};
# Update with `eval $(nix-build -A bazel.updater)`,
# then add new dependencies from the dict in ./src-deps.json as required.
srcDeps = lib.attrsets.attrValues srcDepsSet;
srcDepsSet =
let
srcs = lib.importJSON ./src-deps.json;
toFetchurl = d: lib.attrsets.nameValuePair d.name (fetchurl {
urls = d.urls;
sha256 = d.sha256;
});
in builtins.listToAttrs (map toFetchurl [
srcs.desugar_jdk_libs
srcs.io_bazel_skydoc
srcs.bazel_skylib
srcs.bazelci_rules
srcs.io_bazel_rules_sass
srcs.platforms
srcs."remote_java_tools_for_testing"
srcs."coverage_output_generator-v2.5.zip"
srcs.build_bazel_rules_nodejs
srcs."android_tools_pkg-0.23.0.tar.gz"
srcs.bazel_toolchains
srcs.com_github_grpc_grpc
srcs.upb
srcs.com_google_protobuf
srcs.rules_pkg
srcs.rules_cc
srcs.rules_java
srcs.rules_proto
srcs.com_google_absl
srcs.com_googlesource_code_re2
srcs.com_github_cares_cares
]);
distDir = runCommand "bazel-deps" {} ''
mkdir -p $out
for i in ${builtins.toString srcDeps}; do cp $i $out/$(stripHash $i); done
'';
defaultShellUtils =
# Keep this list conservative. For more exotic tools, prefer to use
# @rules_nixpkgs to pull in tools from the nix repository. Example:
#
# WORKSPACE:
#
# nixpkgs_git_repository(
# name = "nixpkgs",
# revision = "def5124ec8367efdba95a99523dd06d918cb0ae8",
# )
#
# # This defines an external Bazel workspace.
# nixpkgs_package(
# name = "bison",
# repositories = { "nixpkgs": "@nixpkgs//:default.nix" },
# )
#
# some/BUILD.bazel:
#
# genrule(
# ...
# cmd = "$(location @bison//:bin/bison) -other -args",
# tools = [
# ...
# "@bison//:bin/bison",
# ],
# )
#
# Some of the scripts explicitly depend on Python 2.7. Otherwise, we
# default to using python3. Therefore, both python27 and python3 are
# runtime dependencies.
[
bash
coreutils
file
findutils
gawk
gnugrep
gnused
gnutar
gzip
python27
python3
unzip
which
zip
];
defaultShellPath = lib.makeBinPath defaultShellUtils;
platforms = lib.platforms.linux ++ lib.platforms.darwin;
system = if stdenv.hostPlatform.isDarwin then "darwin" else "linux";
arch = stdenv.hostPlatform.parsed.cpu.name;
bazelRC = writeTextFile {
name = "bazel-rc";
text = ''
startup --server_javabase=${runJdk}
# Can't use 'common'; https://github.com/bazelbuild/bazel/issues/3054
# Most commands inherit from 'build' anyway.
build --distdir=${distDir}
fetch --distdir=${distDir}
query --distdir=${distDir}
build --extra_toolchains=@bazel_tools//tools/jdk:nonprebuilt_toolchain_definition
build --tool_java_runtime_version=local_jdk_11
build --java_runtime_version=local_jdk_11
# load default location for the system wide configuration
try-import /etc/bazel.bazelrc
'';
};
in
stdenv.mkDerivation rec {
pname = "bazel";
inherit version;
meta = with lib; {
homepage = "https://github.com/bazelbuild/bazel/";
description = "Build tool that builds code quickly and reliably";
license = licenses.asl20;
maintainers = lib.teams.bazel.members;
inherit platforms;
};
inherit src;
inherit sourceRoot;
patches = [
# On Darwin, the last argument to gcc is coming up as an empty string. i.e: ''
# This is breaking the build of any C target. This patch removes the last
# argument if it's found to be an empty string.
../trim-last-argument-to-gcc-if-empty.patch
# On Darwin, using clang 6 to build fails because of a linker error (see #105573),
# but using clang 7 fails because libarclite_macosx.a cannot be found when linking
# the xcode_locator tool.
# This patch removes using the -fobjc-arc compiler option and makes the code
# compile without automatic reference counting. Caveat: this leaks memory, but
# we accept this fact because xcode_locator is only a short-lived process used during the build.
(substituteAll {
src = ./no-arc.patch;
multiBinPatch = if stdenv.hostPlatform.system == "aarch64-darwin" then "arm64" else "x86_64";
})
# --experimental_strict_action_env (which may one day become the default
# see bazelbuild/bazel#2574) hardcodes the default
# action environment to a non hermetic value (e.g. "/usr/local/bin").
# This is non hermetic on non-nixos systems. On NixOS, bazel cannot find the required binaries.
# So we are replacing this bazel paths by defaultShellPath,
# improving hermeticity and making it work in nixos.
(substituteAll {
src = ../strict_action_env.patch;
strictActionEnvPatch = defaultShellPath;
})
(substituteAll {
src = ./actions_path.patch;
actionsPathPatch = defaultShellPath;
})
# bazel reads its system bazelrc in /etc
# override this path to a builtin one
(substituteAll {
src = ../bazel_rc.patch;
bazelSystemBazelRCPath = bazelRC;
})
] ++ lib.optional enableNixHacks ../nix-hacks.patch;
# Additional tests that check bazels functionality. Execute
#
# nix-build . -A bazel.tests
#
# in the nixpkgs checkout root to exercise them locally.
passthru.tests =
let
runLocal = name: attrs: script:
let
attrs' = removeAttrs attrs [ "buildInputs" ];
buildInputs = [ python3 which ] ++ (attrs.buildInputs or []);
in
runCommandCC name ({
inherit buildInputs;
preferLocalBuild = true;
meta.platforms = platforms;
} // attrs') script;
# bazel wants to extract itself into $install_dir/install every time it runs,
# so lets do that only once.
extracted = bazelPkg:
let install_dir =
# `install_base` field printed by `bazel info`, minus the hash.
# yes, this path is kinda magic. Sorry.
"$HOME/.cache/bazel/_bazel_nixbld";
in runLocal "bazel-extracted-homedir" { passthru.install_dir = install_dir; } ''
export HOME=$(mktemp -d)
touch WORKSPACE # yeah, everything sucks
install_base="$(${bazelPkg}/bin/bazel info | grep install_base)"
# assert its actually below install_dir
[[ "$install_base" =~ ${install_dir} ]] \
|| (echo "oh no! $install_base but we are \
trying to copy ${install_dir} to $out instead!"; exit 1)
cp -R ${install_dir} $out
'';
bazelTest = { name, bazelScript, workspaceDir, bazelPkg, buildInputs ? [] }:
let
be = extracted bazelPkg;
in runLocal name { inherit buildInputs; } (
# skip extraction caching on Darwin, because nobody knows how Darwin works
(lib.optionalString (!stdenv.hostPlatform.isDarwin) ''
# set up home with pre-unpacked bazel
export HOME=$(mktemp -d)
mkdir -p ${be.install_dir}
cp -R ${be}/install ${be.install_dir}
# https://stackoverflow.com/questions/47775668/bazel-how-to-skip-corrupt-installation-on-centos6
# Bazel checks whether the mtime of the install dir files
# is >9 years in the future, otherwise it extracts itself again.
# see PosixFileMTime::IsUntampered in src/main/cpp/util
# What the hell bazel.
${lr}/bin/lr -0 -U ${be.install_dir} | ${xe}/bin/xe -N0 -0 touch --date="9 years 6 months" {}
'')
+
''
# Note https://github.com/bazelbuild/bazel/issues/5763#issuecomment-456374609
# about why to create a subdir for the workspace.
cp -r ${workspaceDir} wd && chmod u+w wd && cd wd
${bazelScript}
touch $out
'');
bazelWithNixHacks = bazel_self.override { enableNixHacks = true; };
bazel-examples = fetchFromGitHub {
owner = "bazelbuild";
repo = "examples";
rev = "4183fc709c26a00366665e2d60d70521dc0b405d";
sha256 = "1mm4awx6sa0myiz9j4hwp71rpr7yh8vihf3zm15n2ii6xb82r31k";
};
in (if !stdenv.hostPlatform.isDarwin then {
# `extracted` doesnt work on darwin
shebang = callPackage ../shebang-test.nix { inherit runLocal extracted bazelTest distDir; };
} else {}) // {
bashTools = callPackage ../bash-tools-test.nix { inherit runLocal bazelTest distDir; };
cpp = callPackage ../cpp-test.nix { inherit runLocal bazelTest bazel-examples distDir; };
java = callPackage ../java-test.nix { inherit runLocal bazelTest bazel-examples distDir; };
protobuf = callPackage ../protobuf-test.nix { inherit runLocal bazelTest distDir; };
pythonBinPath = callPackage ../python-bin-path-test.nix { inherit runLocal bazelTest distDir; };
bashToolsWithNixHacks = callPackage ../bash-tools-test.nix { inherit runLocal bazelTest distDir; bazel = bazelWithNixHacks; };
cppWithNixHacks = callPackage ../cpp-test.nix { inherit runLocal bazelTest bazel-examples distDir; bazel = bazelWithNixHacks; };
javaWithNixHacks = callPackage ../java-test.nix { inherit runLocal bazelTest bazel-examples distDir; bazel = bazelWithNixHacks; };
protobufWithNixHacks = callPackage ../protobuf-test.nix { inherit runLocal bazelTest distDir; bazel = bazelWithNixHacks; };
pythonBinPathWithNixHacks = callPackage ../python-bin-path-test.nix { inherit runLocal bazelTest distDir; bazel = bazelWithNixHacks; };
# downstream packages using buildBazelPackage
# fixed-output hashes of the fetch phase need to be spot-checked manually
downstream = recurseIntoAttrs ({
inherit bazel-watcher;
}
# dm-sonnet is only packaged for linux
// (lib.optionalAttrs stdenv.isLinux {
# TODO(timokau) dm-sonnet is broken currently
# dm-sonnet-linux = python3.pkgs.dm-sonnet;
}));
};
src_for_updater = stdenv.mkDerivation rec {
name = "updater-sources";
inherit src;
nativeBuildInputs = [ unzip ];
inherit sourceRoot;
installPhase = ''
runHook preInstall
cp -r . "$out"
runHook postInstall
'';
};
# update the list of workspace dependencies
passthru.updater = writeScript "update-bazel-deps.sh" ''
#!${runtimeShell}
(cd "${src_for_updater}" &&
BAZEL_USE_CPP_ONLY_TOOLCHAIN=1 \
"${bazel_4}"/bin/bazel \
query 'kind(http_archive, //external:all) + kind(http_file, //external:all) + kind(distdir_tar, //external:all) + kind(git_repository, //external:all)' \
--loading_phase_threads=1 \
--output build) \
| "${python3}"/bin/python3 "${./update-srcDeps.py}" \
"${builtins.toString ./src-deps.json}"
'';
# Necessary for the tests to pass on Darwin with sandbox enabled.
# Bazel starts a local server and needs to bind a local address.
__darwinAllowLocalNetworking = true;
postPatch = let
darwinPatches = ''
bazelLinkFlags () {
eval set -- "$NIX_LDFLAGS"
local flag
for flag in "$@"; do
printf ' -Wl,%s' "$flag"
done
}
# Disable Bazel's Xcode toolchain detection which would configure compilers
# and linkers from Xcode instead of from PATH
export BAZEL_USE_CPP_ONLY_TOOLCHAIN=1
# Explicitly configure gcov since we don't have it on Darwin, so autodetection fails
export GCOV=${coreutils}/bin/false
# Framework search paths aren't added by bintools hook
# https://github.com/NixOS/nixpkgs/pull/41914
export NIX_LDFLAGS+=" -F${CoreFoundation}/Library/Frameworks -F${CoreServices}/Library/Frameworks -F${Foundation}/Library/Frameworks"
# libcxx includes aren't added by libcxx hook
# https://github.com/NixOS/nixpkgs/pull/41589
export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE -isystem ${lib.getDev libcxx}/include/c++/v1"
# don't use system installed Xcode to run clang, use Nix clang instead
sed -i -E "s;/usr/bin/xcrun (--sdk macosx )?clang;${stdenv.cc}/bin/clang $NIX_CFLAGS_COMPILE $(bazelLinkFlags) -framework CoreFoundation;g" \
scripts/bootstrap/compile.sh \
tools/osx/BUILD
substituteInPlace scripts/bootstrap/compile.sh --replace ' -mmacosx-version-min=10.9' ""
# nixpkgs's libSystem cannot use pthread headers directly, must import GCD headers instead
sed -i -e "/#include <pthread\/spawn.h>/i #include <dispatch/dispatch.h>" src/main/cpp/blaze_util_darwin.cc
# clang installed from Xcode has a compatibility wrapper that forwards
# invocations of gcc to clang, but vanilla clang doesn't
sed -i -e 's;_find_generic(repository_ctx, "gcc", "CC", overriden_tools);_find_generic(repository_ctx, "clang", "CC", overriden_tools);g' tools/cpp/unix_cc_configure.bzl
sed -i -e 's;/usr/bin/libtool;${cctools}/bin/libtool;g' tools/cpp/unix_cc_configure.bzl
wrappers=( tools/cpp/osx_cc_wrapper.sh tools/cpp/osx_cc_wrapper.sh.tpl )
for wrapper in "''${wrappers[@]}"; do
sed -i -e "s,/usr/bin/install_name_tool,${cctools}/bin/install_name_tool,g" $wrapper
done
'';
genericPatches = ''
# Substitute j2objc and objc wrapper's python shebang to plain python path.
# These scripts explicitly depend on Python 2.7, hence we use python27.
# See also `postFixup` where python27 is added to $out/nix-support
substituteInPlace tools/j2objc/j2objc_header_map.py --replace "$!/usr/bin/python2.7" "#!${python27}/bin/python"
substituteInPlace tools/j2objc/j2objc_wrapper.py --replace "$!/usr/bin/python2.7" "#!${python27}/bin/python"
substituteInPlace tools/objc/j2objc_dead_code_pruner.py --replace "$!/usr/bin/python2.7" "#!${python27}/bin/python"
# md5sum is part of coreutils
sed -i 's|/sbin/md5|md5sum|g' \
src/BUILD third_party/ijar/test/testenv.sh tools/objc/libtool.sh
# replace initial value of pythonShebang variable in BazelPythonSemantics.java
substituteInPlace src/main/java/com/google/devtools/build/lib/bazel/rules/python/BazelPythonSemantics.java \
--replace '"#!/usr/bin/env " + pythonExecutableName' "\"#!${python3}/bin/python\""
substituteInPlace src/main/java/com/google/devtools/build/lib/starlarkbuildapi/python/PyRuntimeInfoApi.java \
--replace '"#!/usr/bin/env python3"' "\"#!${python3}/bin/python\""
# substituteInPlace is rather slow, so prefilter the files with grep
grep -rlZ /bin/ src/main/java/com/google/devtools | while IFS="" read -r -d "" path; do
# If you add more replacements here, you must change the grep above!
# Only files containing /bin are taken into account.
# We default to python3 where possible. See also `postFixup` where
# python3 is added to $out/nix-support
substituteInPlace "$path" \
--replace /bin/bash ${bash}/bin/bash \
--replace "/usr/bin/env bash" ${bash}/bin/bash \
--replace "/usr/bin/env python" ${python3}/bin/python \
--replace /usr/bin/env ${coreutils}/bin/env \
--replace /bin/true ${coreutils}/bin/true
done
grep -rlZ /bin/ tools/python | while IFS="" read -r -d "" path; do
substituteInPlace "$path" \
--replace "/usr/bin/env python2" ${python27}/bin/python \
--replace "/usr/bin/env python3" ${python3}/bin/python \
--replace /usr/bin/env ${coreutils}/bin/env
done
# bazel test runner include references to /bin/bash
substituteInPlace tools/build_rules/test_rules.bzl \
--replace /bin/bash ${bash}/bin/bash
for i in $(find tools/cpp/ -type f)
do
substituteInPlace $i \
--replace /bin/bash ${bash}/bin/bash
done
# Fixup scripts that generate scripts. Not fixed up by patchShebangs below.
substituteInPlace scripts/bootstrap/compile.sh \
--replace /bin/bash ${bash}/bin/bash
# add nix environment vars to .bazelrc
cat >> .bazelrc <<EOF
# Limit the resources Bazel is allowed to use during the build to 1/2 the
# available RAM and 3/4 the available CPU cores. This should help avoid
# overwhelming the build machine.
build --local_ram_resources=HOST_RAM*.5
build --local_cpu_resources=HOST_CPUS*.75
build --distdir=${distDir}
fetch --distdir=${distDir}
build --copt="$(echo $NIX_CFLAGS_COMPILE | sed -e 's/ /" --copt="/g')"
build --host_copt="$(echo $NIX_CFLAGS_COMPILE | sed -e 's/ /" --host_copt="/g')"
build --linkopt="$(echo $(< ${stdenv.cc}/nix-support/libcxx-ldflags) | sed -e 's/ /" --linkopt="/g')"
build --host_linkopt="$(echo $(< ${stdenv.cc}/nix-support/libcxx-ldflags) | sed -e 's/ /" --host_linkopt="/g')"
build --linkopt="-Wl,$(echo $NIX_LDFLAGS | sed -e 's/ /" --linkopt="-Wl,/g')"
build --host_linkopt="-Wl,$(echo $NIX_LDFLAGS | sed -e 's/ /" --host_linkopt="-Wl,/g')"
build --extra_toolchains=@bazel_tools//tools/jdk:nonprebuilt_toolchain_definition
build --verbose_failures
build --curses=no
build --sandbox_debug
build --features=-layering_check
EOF
cat >> tools/jdk/BUILD.tools <<EOF
load("@bazel_tools//tools/jdk:default_java_toolchain.bzl", "default_java_toolchain", "NONPREBUILT_TOOLCHAIN_CONFIGURATION")
default_java_toolchain(
name = "nonprebuilt_toolchain",
configuration = NONPREBUILT_TOOLCHAIN_CONFIGURATION,
java_runtime = "@local_jdk//:jdk",
)
EOF
cat >> third_party/grpc/bazel_1.41.0.patch <<EOF
diff --git a/third_party/grpc/BUILD b/third_party/grpc/BUILD
index 39ee9f97c6..9128d20c85 100644
--- a/third_party/grpc/BUILD
+++ b/third_party/grpc/BUILD
@@ -28,7 +28,6 @@ licenses(["notice"])
package(
default_visibility = ["//visibility:public"],
features = [
- "layering_check",
"-parse_headers",
],
)
EOF
# add the same environment vars to compile.sh
sed -e "/\$command \\\\$/a --copt=\"$(echo $NIX_CFLAGS_COMPILE | sed -e 's/ /" --copt=\"/g')\" \\\\" \
-e "/\$command \\\\$/a --host_copt=\"$(echo $NIX_CFLAGS_COMPILE | sed -e 's/ /" --host_copt=\"/g')\" \\\\" \
-e "/\$command \\\\$/a --linkopt=\"$(echo $(< ${stdenv.cc}/nix-support/libcxx-ldflags) | sed -e 's/ /" --linkopt=\"/g')\" \\\\" \
-e "/\$command \\\\$/a --host_linkopt=\"$(echo $(< ${stdenv.cc}/nix-support/libcxx-ldflags) | sed -e 's/ /" --host_linkopt=\"/g')\" \\\\" \
-e "/\$command \\\\$/a --linkopt=\"-Wl,$(echo $NIX_LDFLAGS | sed -e 's/ /" --linkopt=\"-Wl,/g')\" \\\\" \
-e "/\$command \\\\$/a --host_linkopt=\"-Wl,$(echo $NIX_LDFLAGS | sed -e 's/ /" --host_linkopt=\"-Wl,/g')\" \\\\" \
-e "/\$command \\\\$/a --tool_java_runtime_version=local_jdk_11 \\\\" \
-e "/\$command \\\\$/a --java_runtime_version=local_jdk_11 \\\\" \
-e "/\$command \\\\$/a --verbose_failures \\\\" \
-e "/\$command \\\\$/a --curses=no \\\\" \
-e "/\$command \\\\$/a --features=-layering_check \\\\" \
-e "/\$command \\\\$/a --sandbox_debug \\\\" \
-i scripts/bootstrap/compile.sh
# This is necessary to avoid:
# "error: no visible @interface for 'NSDictionary' declares the selector
# 'initWithContentsOfURL:error:'"
# This can be removed when the apple_sdk is upgraded beyond 10.13+
sed -i '/initWithContentsOfURL:versionPlistUrl/ {
N
s/error:nil\];/\];/
}' tools/osx/xcode_locator.m
# append the PATH with defaultShellPath in tools/bash/runfiles/runfiles.bash
echo "PATH=\$PATH:${defaultShellPath}" >> runfiles.bash.tmp
cat tools/bash/runfiles/runfiles.bash >> runfiles.bash.tmp
mv runfiles.bash.tmp tools/bash/runfiles/runfiles.bash
patchShebangs .
'';
in lib.optionalString stdenv.hostPlatform.isDarwin darwinPatches
+ genericPatches;
buildInputs = [buildJdk] ++ defaultShellUtils;
# when a command cant be found in a bazel build, you might also
# need to add it to `defaultShellPath`.
nativeBuildInputs = [
coreutils
installShellFiles
makeWrapper
python3
unzip
which
zip
python3.pkgs.absl-py # Needed to build fish completion
] ++ lib.optionals (stdenv.isDarwin) [ cctools libcxx CoreFoundation CoreServices Foundation ];
# Bazel makes extensive use of symlinks in the WORKSPACE.
# This causes problems with infinite symlinks if the build output is in the same location as the
# Bazel WORKSPACE. This is why before executing the build, the source code is moved into a
# subdirectory.
# Failing to do this causes "infinite symlink expansion detected"
preBuildPhases = ["preBuildPhase"];
preBuildPhase = ''
mkdir bazel_src
shopt -s dotglob extglob
mv !(bazel_src) bazel_src
'';
buildPhase = ''
runHook preBuild
# Increasing memory during compilation might be necessary.
# export BAZEL_JAVAC_OPTS="-J-Xmx2g -J-Xms200m"
# If EMBED_LABEL isn't set, it'd be auto-detected from CHANGELOG.md
# and `git rev-parse --short HEAD` which would result in
# "3.7.0- (@non-git)" due to non-git build and incomplete changelog.
# Actual bazel releases use scripts/release/common.sh which is based
# on branch/tag information which we don't have with tarball releases.
# Note that .bazelversion is always correct and is based on bazel-*
# executable name, version checks should work fine
export EMBED_LABEL="${version}- (@non-git)"
${bash}/bin/bash ./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
${python3}/bin/python3 ./bazel_src/scripts/generate_fish_completion.py \
--bazel=./bazel_src/output/bazel \
--output=./bazel_src/output/bazel-complete.fish
# need to change directory for bazel to find the workspace
cd ./bazel_src
# build execlog tooling
export HOME=$(mktemp -d)
./output/bazel build src/tools/execlog:parser_deploy.jar
cd -
runHook postBuild
'';
installPhase = ''
runHook preInstall
mkdir -p $out/bin
# official wrapper scripts that searches for $WORKSPACE_ROOT/tools/bazel
# if it cant find something in tools, it calls $out/bin/bazel-{version}-{os_arch}
# The binary _must_ exist with this naming if your project contains a .bazelversion
# file.
cp ./bazel_src/scripts/packages/bazel.sh $out/bin/bazel
mv ./bazel_src/output/bazel $out/bin/bazel-${version}-${system}-${arch}
mkdir $out/share
cp ./bazel_src/bazel-bin/src/tools/execlog/parser_deploy.jar $out/share/parser_deploy.jar
cat <<EOF > $out/bin/bazel-execlog
#!${runtimeShell} -e
${runJdk}/bin/java -jar $out/share/parser_deploy.jar \$@
EOF
chmod +x $out/bin/bazel-execlog
# shell completion files
installShellCompletion --bash \
--name bazel.bash \
./bazel_src/output/bazel-complete.bash
installShellCompletion --zsh \
--name _bazel \
./bazel_src/scripts/zsh_completion/_bazel
installShellCompletion --fish \
--name bazel.fish \
./bazel_src/output/bazel-complete.fish
'';
# Install check fails on `aarch64-darwin`
# https://github.com/NixOS/nixpkgs/issues/145587
doInstallCheck = stdenv.hostPlatform.system != "aarch64-darwin";
installCheckPhase = ''
export TEST_TMPDIR=$(pwd)
hello_test () {
$out/bin/bazel test \
--test_output=errors \
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-{version}-{os_arch}
hello_test
runHook postInstall
'';
# Save paths to hardcoded dependencies so Nix can detect them.
# This is needed because the templates get tard up into a .jar.
postFixup = ''
mkdir -p $out/nix-support
echo "${defaultShellPath}" >> $out/nix-support/depends
# The string literal specifying the path to the bazel-rc file is sometimes
# stored non-contiguously in the binary due to gcc optimisations, which leads
# Nix to miss the hash when scanning for dependencies
echo "${bazelRC}" >> $out/nix-support/depends
'' + lib.optionalString stdenv.isDarwin ''
echo "${cctools}" >> $out/nix-support/depends
'';
dontStrip = true;
dontPatchELF = true;
}