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390 lines
15 KiB
390 lines
15 KiB
{ stdenv, callPackage, lib, fetchurl, fetchpatch, runCommand, makeWrapper
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, zip, unzip, bash, writeCBin, coreutils
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, which, python3, perl, gawk, gnused, gnutar, gnugrep, gzip, findutils
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# Apple dependencies
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, cctools, llvmPackages_8, 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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}:
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let
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srcDeps = [
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# From: $REPO_ROOT/WORKSPACE
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(fetchurl {
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url = "https://github.com/google/desugar_jdk_libs/archive/915f566d1dc23bc5a8975320cd2ff71be108eb9c.zip";
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sha256 = "0b926df7yxyyyiwm9cmdijy6kplf0sghm23sf163zh8wrk87wfi7";
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})
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(fetchurl {
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url = "https://mirror.bazel.build/github.com/bazelbuild/skydoc/archive/2d9566b21fbe405acf5f7bf77eda30df72a4744c.tar.gz";
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sha256 = "4a1318fed4831697b83ce879b3ab70ae09592b167e5bda8edaff45132d1c3b3f";
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})
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(fetchurl {
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url = "https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/archive/f83cb8dd6f5658bc574ccd873e25197055265d1c.tar.gz";
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sha256 = "ba5d15ca230efca96320085d8e4d58da826d1f81b444ef8afccd8b23e0799b52";
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})
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(fetchurl {
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url = "https://mirror.bazel.build/github.com/bazelbuild/rules_sass/archive/8ccf4f1c351928b55d5dddf3672e3667f6978d60.tar.gz";
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sha256 = "d868ce50d592ef4aad7dec4dd32ae68d2151261913450fac8390b3fd474bb898";
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})
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(fetchurl {
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url = "https://mirror.bazel.build/bazel_java_tools/releases/javac10/v3.1/java_tools_javac10_linux-v3.1.zip";
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sha256 = "a0cd51f9db1bf05a722ff7f5c60a07fa1c7d27428fff0815c342d32aa6c53576";
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})
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(fetchurl {
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url = "https://mirror.bazel.build/bazel_java_tools/releases/javac10/v3.1/java_tools_javac10_darwin-v3.1.zip";
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sha256 = "c646aad8808b8ec5844d6a80a1287fc8e13203375fe40d6af4819eff48b9bbaf";
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})
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(fetchurl {
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url = "https://mirror.bazel.build/bazel_coverage_output_generator/releases/coverage_output_generator-v1.0.zip";
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sha256 = "cc470e529fafb6165b5be3929ff2d99b38429b386ac100878687416603a67889";
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})
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(fetchurl {
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url = "https://github.com/bazelbuild/rules_nodejs/archive/0.16.2.zip";
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sha256 = "9b72bb0aea72d7cbcfc82a01b1e25bf3d85f791e790ddec16c65e2d906382ee0";
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})
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(fetchurl {
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url = "https://mirror.bazel.build/bazel_android_tools/android_tools_pkg-0.2.tar.gz";
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sha256 = "04f85f2dd049e87805511e3babc5cea3f5e72332b1627e34f3a5461cc38e815f";
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})
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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${buildJdkName}";
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stdenv' = if stdenv.isDarwin then llvmPackages_8.libcxxStdenv else stdenv;
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in
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stdenv'.mkDerivation rec {
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version = "0.26.0";
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meta = with lib; {
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homepage = "https://github.com/bazelbuild/bazel/";
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description = "Build tool that builds code quickly and reliably";
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license = licenses.asl20;
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platforms = platforms.linux ++ platforms.darwin;
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};
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# Additional tests that check bazel’s functionality. Execute
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#
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# nix-build . -A bazel.tests
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#
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# in the nixpkgs checkout root to exercise them locally.
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passthru.tests = {
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pythonBinPath = callPackage ./python-bin-path-test.nix {};
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bashTools = callPackage ./bash-tools-test.nix {};
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};
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pname = "bazel";
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src = fetchurl {
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url = "https://github.com/bazelbuild/bazel/releases/download/${version}/bazel-${version}-dist.zip";
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sha256 = "d26dadf62959255d58e523da3448a6222af768fe1224e321b120c1d5bbe4b4f2";
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};
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# Necessary for the tests to pass on Darwin with sandbox enabled.
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# Bazel starts a local server and needs to bind a local address.
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__darwinAllowLocalNetworking = true;
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sourceRoot = ".";
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patches = [
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./glibc.patch
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./python-stub-path-fix.patch
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] ++ lib.optional enableNixHacks ../nix-hacks.patch;
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# Bazel expects several utils to be available in Bash even without PATH. Hence this hack.
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customBash = writeCBin "bash" ''
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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extern char **environ;
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int main(int argc, char *argv[]) {
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char *path = getenv("PATH");
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char *pathToAppend = "${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("${bash}/bin/bash", argv, environ);
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return 0;
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}
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'';
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postPatch = let
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darwinPatches = ''
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bazelLinkFlags () {
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eval set -- "$NIX_LDFLAGS"
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local flag
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for flag in "$@"; do
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printf ' -Wl,%s' "$flag"
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done
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}
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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=${coreutils}/bin/false
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# Framework search paths aren't added by bintools hook
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# https://github.com/NixOS/nixpkgs/pull/41914
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export NIX_LDFLAGS+=" -F${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 ${llvmPackages_8.libcxx}/include/c++/v1"
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# don't use system installed Xcode to run clang, use Nix clang instead
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sed -i -E "s;/usr/bin/xcrun (--sdk macosx )?clang;${stdenv'.cc}/bin/clang $NIX_CFLAGS_COMPILE $(bazelLinkFlags) -framework CoreFoundation;g" \
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scripts/bootstrap/compile.sh \
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src/tools/xcode/realpath/BUILD \
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src/tools/xcode/stdredirect/BUILD \
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tools/osx/BUILD
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# nixpkgs's libSystem cannot use pthread headers directly, must import GCD headers instead
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sed -i -e "/#include <pthread\/spawn.h>/i #include <dispatch/dispatch.h>" src/main/cpp/blaze_util_darwin.cc
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# clang installed from Xcode has a compatibility wrapper that forwards
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# invocations of gcc to clang, but vanilla clang doesn't
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sed -i -e 's;_find_generic(repository_ctx, "gcc", "CC", overriden_tools);_find_generic(repository_ctx, "clang", "CC", overriden_tools);g' tools/cpp/unix_cc_configure.bzl
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sed -i -e 's;/usr/bin/libtool;${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.interpreter}" \
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--replace "NIX_STORE_PYTHON_PATH" "${python3.interpreter}" \
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# md5sum is part of coreutils
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sed -i 's|/sbin/md5|md5sum|' \
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src/BUILD
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# substituteInPlace is rather slow, so prefilter the files with grep
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grep -rlZ /bin src/main/java/com/google/devtools | while IFS="" read -r -d "" path; do
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# If you add more replacements here, you must change the grep above!
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# Only files containing /bin are taken into account.
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substituteInPlace "$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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# 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 ${customBash}/bin/bash
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# add nix environment vars to .bazelrc
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cat >> .bazelrc <<EOF
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build --experimental_distdir=${distDir}
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fetch --experimental_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 $NIX_CFLAGS_COMPILE | sed -e 's/ /" --host_copt="/g')"
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build --linkopt="$(echo $(< ${stdenv'.cc}/nix-support/libcxx-ldflags) | sed -e 's/ /" --linkopt="/g')"
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build --host_linkopt="$(echo $(< ${stdenv'.cc}/nix-support/libcxx-ldflags) | sed -e 's/ /" --host_linkopt="/g')"
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build --linkopt="-Wl,$(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=\"$(echo $(< ${stdenv'.cc}/nix-support/libcxx-ldflags) | sed -e 's/ /" --linkopt=\"/g')\" \\\\" \
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-e "/\$command \\\\$/a --host_linkopt=\"$(echo $(< ${stdenv'.cc}/nix-support/libcxx-ldflags) | sed -e 's/ /" --host_linkopt=\"/g')\" \\\\" \
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-e "/\$command \\\\$/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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# --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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# This is necessary to avoid:
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# "error: no visible @interface for 'NSDictionary' declares the selector
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# 'initWithContentsOfURL:error:'"
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# This can be removed when the apple_sdk is upgraded beyond 10.13+
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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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# append the PATH with defaultShellPath in tools/bash/runfiles/runfiles.bash
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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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'';
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in lib.optionalString stdenv.hostPlatform.isDarwin darwinPatches
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+ genericPatches;
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buildInputs = [
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buildJdk
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];
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strictDeps = true;
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# when a command can’t be found in a bazel build, you might also
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# need to add it to `defaultShellPath`.
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nativeBuildInputs = [
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zip
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python3
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unzip
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makeWrapper
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which
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customBash
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] ++ lib.optionals (stdenv.isDarwin) [ cctools CoreFoundation CoreServices Foundation ];
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# Bazel makes extensive use of symlinks in the WORKSPACE.
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# This causes problems with infinite symlinks if the build output is in the same location as the
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# Bazel WORKSPACE. This is why before executing the build, the source code is moved into a
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# subdirectory.
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# Failing to do this causes "infinite symlink expansion detected"
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preBuildPhases = ["preBuildPhase"];
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preBuildPhase = ''
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mkdir bazel_src
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shopt -s dotglob extglob
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mv !(bazel_src) bazel_src
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'';
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buildPhase = ''
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# Increasing memory during compilation might be necessary.
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# export BAZEL_JAVAC_OPTS="-J-Xmx2g -J-Xms200m"
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./bazel_src/compile.sh
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./bazel_src/scripts/generate_bash_completion.sh \
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--bazel=./bazel_src/output/bazel \
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--output=./bazel_src/output/bazel-complete.bash \
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--prepend=./bazel_src/scripts/bazel-complete-header.bash \
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--prepend=./bazel_src/scripts/bazel-complete-template.bash
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'';
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installPhase = ''
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mkdir -p $out/bin
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# official wrapper scripts that searches for $WORKSPACE_ROOT/tools/bazel
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# if it can’t find something in tools, it calls $out/bin/bazel-real
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cp ./bazel_src/scripts/packages/bazel.sh $out/bin/bazel
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mv ./bazel_src/output/bazel $out/bin/bazel-real
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wrapProgram "$out/bin/bazel" --add-flags --server_javabase="${runJdk}"
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# shell completion files
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mkdir -p $out/share/bash-completion/completions $out/share/zsh/site-functions
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mv ./bazel_src/output/bazel-complete.bash $out/share/bash-completion/completions/bazel
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cp ./bazel_src/scripts/zsh_completion/_bazel $out/share/zsh/site-functions/
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'';
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# Temporarily disabling for now. A new approach is needed for this derivation as Bazel
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# accesses the internet during the tests which fails in a sandbox.
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doInstallCheck = false;
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installCheckPhase = ''
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export TEST_TMPDIR=$(pwd)
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hello_test () {
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$out/bin/bazel test \
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--test_output=errors \
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--java_toolchain='${javaToolchain}' \
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examples/cpp:hello-success_test \
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examples/java-native/src/test/java/com/example/myproject:hello
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}
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cd ./bazel_src
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# test whether $WORKSPACE_ROOT/tools/bazel works
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mkdir -p tools
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cat > tools/bazel <<"EOF"
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#!${runtimeShell} -e
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exit 1
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EOF
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chmod +x tools/bazel
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# first call should fail if tools/bazel is used
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! hello_test
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cat > tools/bazel <<"EOF"
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#!${runtimeShell} -e
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exec "$BAZEL_REAL" "$@"
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EOF
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# second call succeeds because it defers to $out/bin/bazel-real
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hello_test
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'';
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# Save paths to hardcoded dependencies so Nix can detect them.
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postFixup = ''
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mkdir -p $out/nix-support
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echo "${customBash} ${defaultShellPath}" >> $out/nix-support/depends
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# The templates get tar’d up into a .jar,
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# so nix can’t detect python is needed in the runtime closure
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echo "${python3}" >> $out/nix-support/depends
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'';
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dontStrip = true;
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dontPatchELF = true;
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}
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