Rework release workflows using Github runners (replacing Zig) (#1496)

This PR modernizes the grpc-web release workflows by migrating from make/Zig-based build systems to Bazel across all platforms, and updates GitHub Actions to use current versions.

## Main changes:

- Removes Zig build system and migrates all platforms to use Bazel for building the protoc plugin
- Standardizes version handling across workflows with dynamic computation from inputs or Git refs
- Updates GitHub Actions versions and adds support for ARM64 runners on all platforms

.bazelrc

@@ -1,14 +1,10 @@
-build --copt=-Wno-error=deprecated-declarations --host_copt=-Wno-error=deprecated-declarations
+# Common build settings for unix-like systems
+build --copt=-Wno-error=deprecated-declarations
+build --host_copt=-Wno-error=deprecated-declarations
 
 # Required until this is the default; expected in Bazel 7
 common --enable_bzlmod
 
-# Load any settings specific to the current user.
+# Per-user settings (gitignored). Keep last so local flags can override.
-# .bazelrc.user should appear in .gitignore so that settings are not shared with team members
+# Docs: https://bazel.build/configure/best-practices#bazelrc
-# This needs to be last statement in this
-# config, as the user configuration should be able to overwrite flags from this file.
-# See https://docs.bazel.build/versions/master/best-practices.html#bazelrc
-# (Note that we use .bazelrc.user so the file appears next to .bazelrc in directory listing,
-# rather than user.bazelrc as suggested in the Bazel docs)
 try-import %workspace%/.bazelrc.user
-    

.bazelrc.windows

@@ -0,0 +1,13 @@
+# This is a Windows-specific bazelrc file for use in GitHub Actions.
+# It contains settings from the main .bazelrc file that are relevant for Windows builds.
+
+# Windows specific settings
+build --copt=-DABSL_HAVE_WORKING_GCC_WNO_DEPRECATED_DECLARATIONS=0
+build --host_copt=-DABSL_HAVE_WORKING_GCC_WNO_DEPRECATED_DECLARATIONS=0
+
+# Required until this is the default; expected in Bazel 7
+common --enable_bzlmod
+
+# Per-user settings (gitignored). Keep last so local flags can override.
+# Docs: https://bazel.build/configure/best-practices#bazelrc
+try-import %workspace%/.bazelrc.user

.github/workflows/make-plugin-arm.yml

@@ -1,42 +0,0 @@
-name: Make ARM Plugins (Windows/macOS/Linux)
-
-on:
-  workflow_dispatch:
-    inputs:
-      version_number:
-        description: 'Version number'
-        required: true
-        default: '1.x.x'
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v3
-      with:
-        submodules: 'recursive'
-    - name: Setup Zig
-      run: |
-        mkdir -p $HOME/.local/bin $HOME/.local/zig
-        curl 'https://ziglang.org/download/0.9.1/zig-linux-x86_64-0.9.1.tar.xz' | tar xJ --strip-components=1 --directory=$HOME/.local/zig
-        ln -s $HOME/.local/zig/zig $HOME/.local/bin/zig
-        echo "PATH=$PATH:$HOME/.local/bin" >> $GITHUB_ENV
-    - name: Build plugin
-      env:
-        VERSION: ${{ github.event.inputs.version_number }}
-      run: |
-        cd javascript/net/grpc/web/generator
-        zig build -Drelease-fast
-    - name: gen and verify sha256
-      run: |
-        cd javascript/net/grpc/web/generator/zig-out/bin
-        for exe in $(ls)
-        do
-          openssl dgst -sha256 -r -out $exe'.sha256' $exe
-          sha256sum -c $exe'.sha256'
-        done
-    - name: Upload artifacts
-      uses: actions/upload-artifact@v3
-      with:
-        name: plugin
-        path: javascript/net/grpc/web/generator/zig-out/bin/

.github/workflows/make-plugin-linux.yml

@@ -1,32 +1,97 @@
 name: Make Linux Plugin
 
 on:
+  push:
+    paths:
+      - .github/workflows/make-plugin-linux.yml
+  pull_request:
+    paths:
+      - .github/workflows/make-plugin-linux.yml
   workflow_dispatch:
     inputs:
       version_number:
         description: 'Version number'
         required: true
-        default: '1.x.x'
+        default: '2.x.x'
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-24.04, ubuntu-24.04-arm]
+    runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
-    - name: Build plugin docker image
+    - name: Compute VERSION_NUMBER
-      run: docker-compose build prereqs protoc-plugin
-    - name: Copy binary from Docker image
       run: |
-        docker cp $(docker create grpcweb/protoc-plugin):/github/grpc-web/javascript/net/grpc/web/generator/protoc-gen-grpc-web \
+        INPUT_VERSION="${{ github.event.inputs.version_number }}"
-          ./protoc-gen-grpc-web-${{ github.event.inputs.version_number }}-linux-x86_64
+        if [ -n "$INPUT_VERSION" ]; then
-    - name: gen sha256
+          VERSION="$INPUT_VERSION"
+        else
+          VERSION="$GITHUB_REF_NAME"
+        fi
+        VERSION="${VERSION//\//-}"
+        echo "VERSION_NUMBER=$VERSION" >> "$GITHUB_ENV"
+        echo "Computed VERSION_NUMBER=$VERSION"
+    - name: Compute ARCH suffix and artifact name
+      id: meta
       run: |
-        openssl dgst -sha256 -r -out protoc-gen-grpc-web-${{ github.event.inputs.version_number }}-linux-x86_64.sha256 \
+        ARCH=$(uname -m)
-          protoc-gen-grpc-web-${{ github.event.inputs.version_number }}-linux-x86_64
+        case "$ARCH" in
-    - name: verify sha256
+          aarch64|arm64)
-      run: sha256sum -c protoc-gen-grpc-web-${{ github.event.inputs.version_number }}-linux-x86_64.sha256
+            ARCH_SUFFIX="aarch64"
+            ;;
+          x86_64|amd64)
+            ARCH_SUFFIX="x86_64"
+            ;;
+          *)
+            echo "Unsupported architecture: $ARCH" >&2
+            exit 1
+            ;;
+        esac
+        ARTIFACT="protoc-gen-grpc-web-${VERSION_NUMBER}-linux-${ARCH_SUFFIX}"
+        echo "ARTIFACT=$ARTIFACT" >> "$GITHUB_ENV"
+        echo "artifact=$ARTIFACT" >> "$GITHUB_OUTPUT"
+        echo "Will produce artifact: $ARTIFACT"
+    - name: Install Bazelisk (Bazel)
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y unzip zip
+        ARCH=$(uname -m)
+        case "$ARCH" in
+          aarch64|arm64)
+            BAZELISK_URL="https://github.com/bazelbuild/bazelisk/releases/latest/download/bazelisk-linux-arm64"
+            ;;
+          x86_64|amd64)
+            BAZELISK_URL="https://github.com/bazelbuild/bazelisk/releases/latest/download/bazelisk-linux-amd64"
+            ;;
+          *)
+            echo "Unsupported architecture for Bazelisk: $ARCH" >&2
+            exit 1
+            ;;
+        esac
+        echo "Downloading Bazelisk from $BAZELISK_URL"
+        sudo curl -L -o /usr/local/bin/bazelisk "$BAZELISK_URL"
+        sudo chmod +x /usr/local/bin/bazelisk
+        # Also provide `bazel` symlink for tools that expect it
+        sudo ln -sf /usr/local/bin/bazelisk /usr/local/bin/bazel
+        bazelisk version
+    - name: Build protoc-gen-grpc-web with Bazel
+      run: |
+        bazelisk build //javascript/net/grpc/web/generator:protoc-gen-grpc-web
+    - name: Move artifact
+      run: |
+        mv bazel-bin/javascript/net/grpc/web/generator/protoc-gen-grpc-web \
+          ./${ARTIFACT}
+    - name: Generate sha256
+      run: |
+        openssl dgst -sha256 -r -out ${ARTIFACT}.sha256 \
+          ${ARTIFACT}
+    - name: Verify sha256
+      run: sha256sum -c ${ARTIFACT}.sha256
     - name: Upload artifacts
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
-        name: plugin
+        name: ${{ steps.meta.outputs.artifact }}
         path: protoc-gen-grpc-web*

.github/workflows/make-plugin-mac-os.yml

@@ -1,48 +1,80 @@
-name: Make MacOS Plugin
+name: Make macOS Plugin
 
 on:
+  push:
+    paths:
+      - .github/workflows/make-plugin-mac-os.yml
+  pull_request:
+    paths:
+      - .github/workflows/make-plugin-mac-os.yml
   workflow_dispatch:
     inputs:
       version_number:
         description: 'Version number'
         required: true
-        default: '1.x.x'
+        default: '2.x.x'
 
 jobs:
   build:
-    runs-on: macos-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-13, macos-14]
+    runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
-    - name: Install build utils
+      - name: Compute VERSION_NUMBER
-      run: brew install coreutils automake
-    - name: Checkout protobuf code
         run: |
-        ./scripts/init_submodules.sh
+          INPUT_VERSION="${{ github.event.inputs.version_number }}"
-    # Protobuf build instructions from:
+          if [ -n "$INPUT_VERSION" ]; then
-    # https://github.com/protocolbuffers/protobuf/blob/master/src/README.md
+            VERSION="$INPUT_VERSION"
-    - name: Build protobuf (configure & make)
+          else
+            VERSION="$GITHUB_REF_NAME"
+          fi
+          # Minimal sanitization: replace slashes with dashes to keep filenames valid
+          VERSION="${VERSION//\//-}"
+          echo "VERSION_NUMBER=$VERSION" >> "$GITHUB_ENV"
+          echo "Computed VERSION_NUMBER=$VERSION"
+      - name: Compute ARCH suffix and artifact name
+        id: meta
         run: |
-        cd ./third_party/protobuf
+          ARCH=$(uname -m)
-        ./autogen.sh
+          case "$ARCH" in
-        ./configure
+            arm64)
-        make -j$(nproc)
+              ARCH_SUFFIX="aarch64"
-        make install
+              ;;
-    - name: Remove dynamite dependencies (similar to `-static` on linux)
+            x86_64)
-      run: rm /usr/local/lib/libproto*.dylib
+              ARCH_SUFFIX="x86_64"
-    - name: make
+              ;;
-      run: make clean && make plugin
+            *)
-    - name: move
+              echo "Unsupported architecture: $ARCH" >&2
+              exit 1
+              ;;
+          esac
+          ARTIFACT="protoc-gen-grpc-web-${VERSION_NUMBER}-darwin-${ARCH_SUFFIX}"
+          echo "ARTIFACT=$ARTIFACT" >> "$GITHUB_ENV"
+          echo "artifact=$ARTIFACT" >> "$GITHUB_OUTPUT"
+          echo "Will produce artifact: $ARTIFACT"
+      - name: Install Bazelisk (Bazel)
         run: |
-        mv javascript/net/grpc/web/generator/protoc-gen-grpc-web \
+          brew update
-          ./protoc-gen-grpc-web-${{ github.event.inputs.version_number }}-darwin-x86_64
+          brew install bazelisk
-    - name: gen sha256
+          bazelisk version
+      - name: Build protoc-gen-grpc-web with Bazel
         run: |
-        openssl dgst -sha256 -r -out protoc-gen-grpc-web-${{ github.event.inputs.version_number }}-darwin-x86_64.sha256 \
+          bazelisk build //javascript/net/grpc/web/generator:protoc-gen-grpc-web
-          protoc-gen-grpc-web-${{ github.event.inputs.version_number }}-darwin-x86_64
+      - name: Move artifact
-    - name: verify sha256
+        run: |
-      run: sha256sum -c protoc-gen-grpc-web-${{ github.event.inputs.version_number }}-darwin-x86_64.sha256
+          mv bazel-bin/javascript/net/grpc/web/generator/protoc-gen-grpc-web \
+            ./${ARTIFACT}
+      - name: Generate sha256
+        run: |
+          openssl dgst -sha256 -r -out ${ARTIFACT}.sha256 \
+            ${ARTIFACT}
+      - name: Verify sha256
+        run: shasum -a 256 -c ${ARTIFACT}.sha256
       - name: Upload artifacts
-      uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
-        name: plugin
+          name: ${{ steps.meta.outputs.artifact }}
           path: protoc-gen-grpc-web*

.github/workflows/make-plugin-windows.yml

@@ -1,37 +1,102 @@
 name: Make Windows Plugin
 
 on:
+  push:
+    paths:
+      - .github/workflows/make-plugin-windows.yml
+  pull_request:
+    paths:
+      - .github/workflows/make-plugin-windows.yml
   workflow_dispatch:
     inputs:
       version_number:
         description: 'Version number'
         required: true
-        default: '1.x.x'
+        default: '2.x.x'
 
 jobs:
   build:
-    runs-on: windows-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [windows-2025, windows-11-arm]
+    runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
-    - name: Print Bazel version
+      - name: Compute VERSION_NUMBER
         run: |
-        bazel version
+          INPUT_VERSION="${{ github.event.inputs.version_number }}"
-    - name: build
+          if [ -n "$INPUT_VERSION" ]; then
-      run: bazel build javascript/net/grpc/web/generator:protoc-gen-grpc-web
+            VERSION="$INPUT_VERSION"
-    - name: move
+          else
-      run: |
+            VERSION="$GITHUB_REF_NAME"
-        mv bazel-bin/javascript/net/grpc/web/generator/protoc-gen-grpc-web.exe \
+          fi
-          ./protoc-gen-grpc-web-${{ github.event.inputs.version_number }}-windows-x86_64.exe
+          # Minimal sanitization: replace slashes with dashes to keep filenames valid
+          VERSION="${VERSION//\//-}"
+          echo "VERSION_NUMBER=$VERSION" >> "$GITHUB_ENV"
+          echo "Computed VERSION_NUMBER=$VERSION"
         shell: bash
-    - name: gen sha256
+      - name: Compute ARCH suffix and artifact name
+        id: meta
+        shell: powershell
         run: |
-        openssl dgst -sha256 -r -out protoc-gen-grpc-web-${{ github.event.inputs.version_number }}-windows-x86_64.exe.sha256 \
+          $arch = [System.Runtime.InteropServices.RuntimeInformation]::OSArchitecture
-          protoc-gen-grpc-web-${{ github.event.inputs.version_number }}-windows-x86_64.exe
+          switch ($arch) {
+            'Arm64' { $archSuffix = 'aarch64' }
+            'X64'   { $archSuffix = 'x86_64' }
+            default { Write-Error "Unsupported architecture: $arch"; exit 1 }
+          }
+          $artifact = "protoc-gen-grpc-web-$($env:VERSION_NUMBER)-windows-$archSuffix.exe"
+          "ARTIFACT=$artifact" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
+          "artifact=$artifact" | Out-File -FilePath $env:GITHUB_OUTPUT -Encoding utf8 -Append
+          Write-Host "Will produce artifact: $artifact"
+      - name: Install Bazelisk (Bazel)
+        shell: powershell
+        run: |
+          $arch = [System.Runtime.InteropServices.RuntimeInformation]::OSArchitecture
+          switch ($arch) {
+            'Arm64' { $suffix = 'arm64' }
+            'X64'   { $suffix = 'amd64' }
+            default { Write-Error "Unsupported architecture: $arch"; exit 1 }
+          }
+          $url = "https://github.com/bazelbuild/bazelisk/releases/latest/download/bazelisk-windows-$suffix.exe"
+          $destDir = "$env:RUNNER_TEMP"
+          $dest = Join-Path $destDir 'bazelisk.exe'
+          Write-Host "Downloading Bazelisk from $url to $dest"
+          Invoke-WebRequest -UseBasicParsing -Uri $url -OutFile $dest
+          # Add to PATH for subsequent steps
+          $destDir | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
+      - name: Print Bazelisk version
+        shell: powershell
+        run: bazelisk version
+      - name: Build protoc-gen-grpc-web with Bazel
+        run: bazelisk --noworkspace_rc --bazelrc=.bazelrc.windows build //javascript/net/grpc/web/generator:protoc-gen-grpc-web
+        shell: powershell
+      - name: Move artifact
+        run: |
+          mv bazel-bin/javascript/net/grpc/web/generator/protoc-gen-grpc-web.exe "./${ARTIFACT}"
         shell: bash
-    # TODO: Check sha256 (sha256sum not available for now. )
+      - name: Generate sha256
-    #- name: verify sha256
+        run: |
+          openssl dgst -sha256 -r -out "${ARTIFACT}.sha256" "${ARTIFACT}"
+        shell: bash
+      - name: Verify sha256
+        shell: powershell
+        run: |
+          $shaFile = "${env:ARTIFACT}.sha256"
+          if (-not (Test-Path $shaFile)) { Write-Error "SHA256 file not found: $shaFile"; exit 1 }
+          $line = Get-Content -Raw $shaFile
+          if (-not $line) { Write-Error "Empty sha256 file: $shaFile"; exit 1 }
+          $expected = ($line -split '\s+')[0].ToLower()
+          $actual = (Get-FileHash "${env:ARTIFACT}" -Algorithm SHA256).Hash.ToLower()
+          if ($actual -ne $expected) {
+            Write-Error "SHA256 mismatch. Expected $expected, got $actual"
+            exit 1
+          } else {
+            Write-Host "SHA256 verified: $actual"
+          }
       - name: Upload artifacts
-      uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
-        name: plugin
+          name: ${{ steps.meta.outputs.artifact }}
           path: protoc-gen-grpc-web*

.github/workflows/release-source-archive.yml

@@ -26,7 +26,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout
+      - uses: actions/checkout@v3
       # GITHUB_REF is defined here:
       # https://docs.github.com/en/actions/writing-workflows/choosing-what-your-workflow-does/store-information-in-variables#default-environment-variables
       - run: git archive --format zip    --prefix "grpc-web-$TAG/" --output "grpc-web-source-${TAG}.zip"    "$GITHUB_REF"

.gitignore

@@ -13,3 +13,4 @@ target
 .settings
 zig-out
 zig-cache
+.zig-cache

javascript/net/grpc/web/generator/build.zig

@@ -1,215 +0,0 @@
-const std = @import("std");
-const CrossTarget = std.zig.CrossTarget;
-
-fn format(comptime fmt: []const u8, args: anytype) []const u8 {
-    return std.fmt.allocPrint(std.testing.allocator, fmt, args) catch unreachable;
-}
-
-const BinaryTarget = struct {
-    name: []const u8,
-    arch: []const u8,
-};
-
-pub fn build(b: *std.build.Builder) void {
-    // Standard release options allow the person running `zig build` to select
-    // between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall.
-    const mode = b.standardReleaseOptions();
-
-    var version = if (std.os.getenv("VERSION")) |v| v else "unknown";
-
-    var targets = [_]BinaryTarget{
-        // for now, let's only build aarch64 binaries
-        // .{ .name = format("protoc-gen-grpc-web-{s}-linux-x86_64", .{version}), .arch = "x86_64-linux" },
-        // .{ .name = format("protoc-gen-grpc-web-{s}-darwin-x86_64", .{version}), .arch = "x86_64-macos" },
-        // .{ .name = format("protoc-gen-grpc-web-{s}-windows-x86_64", .{version}), .arch = "x86_64-windows" },
-
-        .{ .name = format("protoc-gen-grpc-web-{s}-linux-aarch64", .{version}), .arch = "aarch64-linux" },
-        .{ .name = format("protoc-gen-grpc-web-{s}-darwin-aarch64", .{version}), .arch = "aarch64-macos" },
-        .{ .name = format("protoc-gen-grpc-web-{s}-windows-aarch64", .{version}), .arch = "aarch64-windows" },
-    };
-
-    for (targets) |target| {
-        const exe = b.addExecutable(target.name, "grpc_generator.cc");
-        exe.linkLibCpp();
-        exe.linkSystemLibrary("pthread");
-        exe.linkSystemLibrary("dl");
-        exe.addIncludeDir("../../../../../third_party/protobuf/src");
-        exe.defineCMacro("HAVE_PTHREAD", "1");
-        exe.addCSourceFiles(&[_][]const u8{
-            // libprotobuf_lite source files (copied from third_party/protobuf/cmake/libprotobuf-lite.cmake)
-            "../../../../../third_party/protobuf/src/google/protobuf/any_lite.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/arena.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/arenastring.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/extension_set.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/generated_enum_util.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/generated_message_table_driven_lite.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/generated_message_util.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/implicit_weak_message.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/io/coded_stream.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/io/io_win32.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/io/strtod.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/io/zero_copy_stream.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/io/zero_copy_stream_impl.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/io/zero_copy_stream_impl_lite.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/map.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/message_lite.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/parse_context.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/repeated_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/stubs/bytestream.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/stubs/common.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/stubs/int128.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/stubs/status.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/stubs/statusor.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/stubs/stringpiece.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/stubs/stringprintf.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/stubs/structurally_valid.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/stubs/strutil.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/stubs/time.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/wire_format_lite.cc",
-
-            // libprotobuf ssource files (copied from third_party/protobuf/cmake/libprotobuf.cmake)
-            "../../../../../third_party/protobuf/src/google/protobuf/any.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/any.pb.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/api.pb.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/importer.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/parser.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/descriptor.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/descriptor.pb.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/descriptor_database.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/duration.pb.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/dynamic_message.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/empty.pb.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/extension_set_heavy.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/field_mask.pb.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/generated_message_reflection.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/generated_message_table_driven.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/io/gzip_stream.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/io/printer.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/io/tokenizer.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/map_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/message.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/reflection_ops.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/service.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/source_context.pb.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/struct.pb.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/stubs/substitute.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/text_format.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/timestamp.pb.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/type.pb.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/unknown_field_set.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/util/delimited_message_util.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/util/field_comparator.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/util/field_mask_util.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/util/internal/datapiece.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/util/internal/default_value_objectwriter.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/util/internal/error_listener.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/util/internal/field_mask_utility.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/util/internal/json_escaping.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/util/internal/json_objectwriter.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/util/internal/json_stream_parser.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/util/internal/object_writer.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/util/internal/proto_writer.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/util/internal/protostream_objectsource.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/util/internal/protostream_objectwriter.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/util/internal/type_info.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/util/internal/type_info_test_helper.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/util/internal/utility.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/util/json_util.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/util/message_differencer.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/util/time_util.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/util/type_resolver_util.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/wire_format.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/wrappers.pb.cc",
-
-            // libprotoc source files (copied from third_party/protobuf/cmake/libprotoc.cmake)
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/code_generator.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/command_line_interface.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_enum.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_enum_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_extension.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_file.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_generator.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_helpers.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_map_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_message.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_message_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_padding_optimizer.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_primitive_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_service.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_string_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_doc_comment.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_enum.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_enum_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_field_base.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_generator.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_helpers.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_map_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_message.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_message_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_primitive_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_reflection_class.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_repeated_enum_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_repeated_message_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_repeated_primitive_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_source_generator_base.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_wrapper_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_context.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_doc_comment.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_enum.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_enum_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_enum_field_lite.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_enum_lite.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_extension.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_extension_lite.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_file.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_generator.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_generator_factory.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_helpers.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_map_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_map_field_lite.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_message.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_message_builder.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_message_builder_lite.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_message_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_message_field_lite.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_message_lite.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_name_resolver.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_primitive_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_primitive_field_lite.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_service.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_shared_code_generator.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_string_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/java/java_string_field_lite.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/js/js_generator.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/js/well_known_types_embed.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_enum.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_enum_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_extension.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_file.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_generator.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_helpers.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_map_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_message.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_message_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_oneof.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_primitive_field.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/php/php_generator.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/plugin.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/plugin.pb.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/python/python_generator.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/ruby/ruby_generator.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/subprocess.cc",
-            "../../../../../third_party/protobuf/src/google/protobuf/compiler/zip_writer.cc",
-        }, &[_][]const u8{
-            "-pthread",
-        });
-
-        exe.setTarget(CrossTarget.parse(.{ .arch_os_abi = target.arch }) catch unreachable);
-        exe.setBuildMode(mode);
-        exe.strip = true;
-        exe.install();
-    }
-}

net/grpc/gateway/docker/protoc_plugin/Dockerfile

@@ -12,6 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# TODO: Migrate to be using bazel build.
 FROM grpcweb/prereqs
 
 ARG MAKEFLAGS=-j8