pyrox.dev
1{ buildBazelPackage
2, bazel_5
3, fetchFromGitHub
4, git
5, go
6, python3
7, lib, stdenv
8}:
9
10let
11 patches = [
12 ./use-go-in-path.patch
13 ./fix-rules-go-3408.patch
14 ];
15
16 # Patch the protoc alias so that it always builds from source.
17 rulesProto = fetchFromGitHub {
18 owner = "bazelbuild";
19 repo = "rules_proto";
20 rev = "4.0.0-3.19.2";
21 sha256 = "sha256-wdmp+Tmf63PPr7G4X5F7rDas45WEETU3eKb47PFVI6o=";
22 postFetch = ''
23 sed -i 's|name = "protoc"|name = "_protoc_original"|' $out/proto/private/BUILD.release
24 cat <<EOF >>$out/proto/private/BUILD.release
25 alias(name = "protoc", actual = "@com_github_protocolbuffers_protobuf//:protoc", visibility = ["//visibility:public"])
26 EOF
27 '';
28 };
29
30in
31buildBazelPackage rec {
32 pname = "bazel-watcher";
33 version = "0.21.2";
34
35 src = fetchFromGitHub {
36 owner = "bazelbuild";
37 repo = "bazel-watcher";
38 rev = "v${version}";
39 sha256 = "sha256-wigrE9u1VuFnqLWyVJK3M7xsjyme2dDG6YTcD9whKnw=";
40 };
41
42 nativeBuildInputs = [ go git python3 ];
43 removeRulesCC = false;
44
45 bazel = bazel_5;
46 bazelFlags = [ "--override_repository=rules_proto=${rulesProto}" ];
47 bazelBuildFlags = lib.optionals stdenv.cc.isClang [ "--cxxopt=-x" "--cxxopt=c++" "--host_cxxopt=-x" "--host_cxxopt=c++" ];
48 bazelTargets = [ "//cmd/ibazel" ];
49
50 fetchConfigured = false; # we want to fetch all dependencies, regardless of the current system
51 fetchAttrs = {
52 inherit patches;
53
54 preBuild = ''
55 patchShebangs .
56
57 echo ${bazel_5.version} > .bazelversion
58 '';
59
60 preInstall = ''
61 # Remove the go_sdk (it's just a copy of the go derivation) and all
62 # references to it from the marker files. Bazel does not need to download
63 # this sdk because we have patched the WORKSPACE file to point to the one
64 # currently present in PATH. Without removing the go_sdk from the marker
65 # file, the hash of it will change anytime the Go derivation changes and
66 # that would lead to impurities in the marker files which would result in
67 # a different sha256 for the fetch phase.
68 rm -rf $bazelOut/external/{go_sdk,\@go_sdk.marker}
69 sed -e '/^FILE:@go_sdk.*/d' -i $bazelOut/external/\@*.marker
70
71 # Retains go build input markers
72 chmod -R 755 $bazelOut/external/{bazel_gazelle_go_repository_cache,@\bazel_gazelle_go_repository_cache.marker}
73 rm -rf $bazelOut/external/{bazel_gazelle_go_repository_cache,@\bazel_gazelle_go_repository_cache.marker}
74
75 # Remove the gazelle tools, they contain go binaries that are built
76 # non-deterministically. As long as the gazelle version matches the tools
77 # should be equivalent.
78 rm -rf $bazelOut/external/{bazel_gazelle_go_repository_tools,\@bazel_gazelle_go_repository_tools.marker}
79 sed -e '/^FILE:@bazel_gazelle_go_repository_tools.*/d' -i $bazelOut/external/\@*.marker
80
81 # remove com_google_protobuf because it had files with different permissions on linux and darwin
82 rm -rf $bazelOut/external/com_google_protobuf
83 '';
84
85 sha256 = "sha256-lC9e5Z2cxLAeWXkiFGmcB6aOaurMvwrP/k5jl3gCfAc=";
86 };
87
88 buildAttrs = {
89 inherit patches;
90
91 preBuild = ''
92 patchShebangs .
93
94 substituteInPlace cmd/ibazel/BUILD.bazel --replace '{STABLE_GIT_VERSION}' ${version}
95 echo ${bazel_5.version} > .bazelversion
96 '';
97
98 installPhase = ''
99 install -Dm755 bazel-bin/cmd/ibazel/ibazel_/ibazel $out/bin/ibazel
100 '';
101 };
102
103 meta = with lib; {
104 homepage = "https://github.com/bazelbuild/bazel-watcher";
105 description = "Tools for building Bazel targets when source files change";
106 license = licenses.asl20;
107 maintainers = with maintainers; [ kalbasit ];
108 mainProgram = "ibazel";
109 platforms = platforms.all;
110 };
111}