1 files changed, 80 insertions, 0 deletions
diff --git a/pkgs/development/tools/bazel-watcher/default.nix b/pkgs/development/tools/bazel-watcher/default.nix
new file mode 100644
index 000000000000..bedb55ec3742
--- /dev/null
+++ b/pkgs/development/tools/bazel-watcher/default.nix
@@ -0,0 +1,80 @@
+{ buildBazelPackage
+, cacert
+, fetchFromGitHub
+, fetchpatch
+, git
+, go
+, stdenv
+}:
+
+buildBazelPackage rec {
+  name = "bazel-watcher-${version}";
+  version = "0.5.0";
+
+  src = fetchFromGitHub {
+    owner = "bazelbuild";
+    repo = "bazel-watcher";
+    rev = "v${version}";
+    sha256 = "1sis723hwax4dg0c28x20yj0hjli66q1ykcvjirgy57znz4iwlq9";
+  };
+
+  patches = [
+    (fetchpatch {
+      url = "https://github.com/bazelbuild/bazel-watcher/commit/4d5928eee3dd5843a1b55136d914b78fef7f25d0.patch";
+      sha256 = "0gxzcdqgifrmvznfy0p5nd11b39n2pwxcvpmhc6hxf85mwlxz7dg";
+    })
+
+    ./update-gazelle-fix-ssl.patch
+  ];
+
+  nativeBuildInputs = [ go git ];
+
+  bazelTarget = "//ibazel";
+
+  fetchAttrs = {
+    preBuild = ''
+      patchShebangs .
+
+      # tell rules_go to use the Go binary found in the PATH
+      sed -e 's:go_register_toolchains():go_register_toolchains(go_version = "host"):g' -i WORKSPACE
+
+      # tell rules_go to invoke GIT with custom CAINFO path
+      export GIT_SSL_CAINFO="${cacert}/etc/ssl/certs/ca-bundle.crt"
+    '';
+
+    preInstall = ''
+      # Remove the go_sdk (it's just a copy of the go derivation) and all
+      # references to it from the marker files. Bazel does not need to download
+      # this sdk because we have patched the WORKSPACE file to point to the one
+      # currently present in PATH. Without removing the go_sdk from the marker
+      # file, the hash of it will change anytime the Go derivation changes and
+      # that would lead to impurities in the marker files which would result in
+      # a different sha256 for the fetch phase.
+      rm -rf $bazelOut/external/{go_sdk,\@go_sdk.marker}
+      sed -e '/^FILE:@go_sdk.*/d' -i $bazelOut/external/\@*.marker
+    '';
+
+    sha256 = "1iyjvibvlwg980p7nizr6x5v31dyp4a344f0xn839x393583k59d";
+  };
+
+  buildAttrs = {
+    preBuild = ''
+      patchShebangs .
+
+      # tell rules_go to use the Go binary found in the PATH
+      sed -e 's:go_register_toolchains():go_register_toolchains(go_version = "host"):g' -i WORKSPACE
+    '';
+
+    installPhase = ''
+      install -Dm755 bazel-bin/ibazel/*_pure_stripped/ibazel $out/bin/ibazel
+    '';
+  };
+
+  meta = with stdenv.lib; {
+    homepage = https://github.com/bazelbuild/bazel-watcher;
+    description = "Tools for building Bazel targets when source files change.";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ kalbasit ];
+    platforms = platforms.all;
+  };
+}