Upgrade to protobuf v27.2

Co-authored-by: Daniele Guarascio <[email protected]>

protobuf-src/CHANGELOG.md

@@ -9,6 +9,8 @@ Versioning].
 
 ## [Unreleased] <!-- #release:date -->
 
+* Upgrade to libprotobuf v27.2.
+
 ## [2.0.1] - 2024-05-23
 
 * Fix build on systems where CMake prefers to install libraries to a directory

protobuf-src/protobuf/.bazelrc

@@ -30,3 +30,5 @@ common --noenable_bzlmod
 # Important: this flag ensures that we remain compliant with the C++ layering
 # check.
 build --features=layering_check
+
+common --repo_env=BAZEL_NO_APPLE_CPP_TOOLCHAIN=1

protobuf-src/protobuf/.bcr/README.md

@@ -0,0 +1,8 @@
+# Bazel Central Registry
+
+When protobuf is released, we want it to be published to the Bazel Central
+Registry automatically: <https://registry.bazel.build>
+
+This folder contains configuration files to automate the publish step. See
+<https://github.com/bazel-contrib/publish-to-bcr/blob/main/templates/README.md>
+for authoritative documentation about these files.

protobuf-src/protobuf/.bcr/metadata.template.json

@@ -0,0 +1,23 @@
+{
+  "homepage": "https://github.com/protocolbuffers/protobuf",
+  "maintainers": [
+    {
+      "email": "[email protected]",
+      "github": "zhangskz",
+      "name": "Sandy Zhang"
+    },
+    {
+      "email": "[email protected]",
+      "github": "mkruskal-google",
+      "name": "Mike Kruskal"
+    },
+    {
+      "email": "[email protected]",
+      "github": "googleberg",
+      "name": "Jerry Berg"
+    }
+  ],
+  "repository": ["github:protocolbuffers/protobuf"],
+  "versions": [],
+  "yanked_versions": {}
+}

protobuf-src/protobuf/.bcr/presubmit.yml

@@ -0,0 +1,35 @@
+matrix:
+  platform: ["debian10", "macos", "ubuntu2004", "windows"]
+  bazel: [6.x, 7.x]
+
+tasks:
+  verify_targets:
+    name: "Verify build targets"
+    platform: ${{ platform }}
+    bazel: ${{ bazel }}
+    build_flags:
+    - '--host_cxxopt=-std=c++14'
+    - '--cxxopt=-std=c++14'
+    build_targets:
+    - '@protobuf//:protobuf'
+    - '@protobuf//:protobuf_lite'
+    - '@protobuf//:protoc'
+    - '@protobuf//:test_messages_proto2_cc_proto'
+    - '@protobuf//:test_messages_proto3_cc_proto'
+
+bcr_test_module:
+  module_path: "examples"
+  matrix:
+
+    platform: ["debian10", "macos", "ubuntu2004", "windows"]
+    bazel: [6.x, 7.x]
+  tasks:
+    run_test_module:
+      name: "Run test module"
+      platform: ${{ platform }}
+      bazel: ${{ bazel }}
+      build_flags:
+      - '--host_cxxopt=-std=c++14'
+      - '--cxxopt=-std=c++14'
+      build_targets:
+      - "//..."

protobuf-src/protobuf/.bcr/source.template.json

@@ -0,0 +1,5 @@
+{
+  "integrity": "**leave this alone**",
+  "strip_prefix": "{REPO}-{VERSION}",
+  "url": "https://github.com/{OWNER}/{REPO}/releases/download/{TAG}/{REPO}-{VERSION}.zip"
+}

protobuf-src/protobuf/.github/BUILD.bazel

@@ -4,19 +4,38 @@
 # When updating, also ensure the "xcode_destination" entries in
 # `.github/workflows/test_objectivec.yml` are supported for the given versions
 # of Xcode.
+xcode_version(
+    name = "version15_2_15C500b",
+    aliases = [
+        "15C500b",
+        "15.2",
+    ],
+    default_ios_sdk_version = "17.2",
+    default_macos_sdk_version = "14.2",
+    default_tvos_sdk_version = "17.2",
+    default_watchos_sdk_version = "10.2",
+    version = "15.2.0.15C500b",
+)
+
 xcode_version(
     name = "version14_2_14C18",
-    aliases = ["14C18"],
+    aliases = [
+        "14C18",
+        "14.2",
+    ],
     default_ios_sdk_version = "16.2",
     default_macos_sdk_version = "13.1",
     default_tvos_sdk_version = "16.1",
     default_watchos_sdk_version = "9.1",
-    version = "14.2.14C18",
+    version = "14.2.0.14C18",
 )
 
 xcode_version(
     name = "version14_1_0_14B47b",
-    aliases = ["14B47b"],
+    aliases = [
+        "14B47b",
+        "14.1",
+    ],
     default_ios_sdk_version = "16.1",
     default_macos_sdk_version = "13.0",
     default_tvos_sdk_version = "16.1",
@@ -26,8 +45,9 @@ xcode_version(
 
 xcode_config(
     name = "host_xcodes",
-    default = ":version14_1_0_14B47b",
+    default = ":version14_2_14C18",
     versions = [
+        ":version15_2_15C500b",
         ":version14_2_14C18",
         ":version14_1_0_14B47b",
     ],

protobuf-src/protobuf/.github/workflows/staleness_check.yml

@@ -18,15 +18,15 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        branch: [main, 22.x, 23.x, 24.x, 25.x]
+        branch: [main, 22.x, 23.x, 24.x, 25.x, 26.x]
         os: [{ name: Linux, value: ubuntu-latest}]
 
     name: Test staleness ${{ matrix.os.name }} ${{ github.head_ref && 'PR' || matrix.branch }}
     runs-on: ${{ matrix.os.value }}
     if: ${{ github.event.repository.full_name == 'protocolbuffers/protobuf' }}
     steps:
       - name: Checkout ${{ github.head_ref && 'PR' || matrix.branch }}
-        uses: protocolbuffers/protobuf-ci/checkout@v2
+        uses: protocolbuffers/protobuf-ci/checkout@v3
         with:
           ref: ${{ inputs.safe-checkout || github.head_ref || matrix.branch }}
 
@@ -49,7 +49,7 @@ jobs:
         # In branches where automatic updates work as post-submits, we don't want to run staleness
         # tests along with user changes.  Any stale files will be automatically fixed in a follow-up
         # commit.
-        uses: protocolbuffers/protobuf-ci/bazel@v2
+        uses: protocolbuffers/protobuf-ci/bazel@v3
         with:
           credentials: ${{ secrets.GAR_SERVICE_ACCOUNT }}
           bazel-cache: staleness

protobuf-src/protobuf/.github/workflows/test_bazel.yml

@@ -0,0 +1,54 @@
+name: Bazel Tests
+
+on:
+  workflow_call:
+    inputs:
+      safe-checkout:
+        required: true
+        description: "The SHA key for the commit we want to run over"
+        type: string
+
+permissions:
+  contents: read
+
+jobs:
+  examples:
+    strategy:
+      fail-fast: false
+      matrix:
+        runner: [ ubuntu, windows, macos ]
+        bazelversion: [ '7.1.1' ]
+        bzlmod: [true, false ]
+        include:
+          - runner: ubuntu
+            bazelversion: '6.4.0'
+            bzlmod: true
+          - runner: ubuntu
+            bazelversion: '6.4.0'
+            bzlmod: false
+    runs-on: ${{ matrix.runner }}-latest
+    name: Examples ${{ matrix.runner }} ${{ matrix.bazelversion }}${{ matrix.bzlmod && ' (bzlmod)' || '' }}
+    steps:
+      - name: Checkout pending changes
+        uses: protocolbuffers/protobuf-ci/checkout@v3
+        with:
+          ref: ${{ inputs.safe-checkout }}
+
+      - name: Windows startup flags
+        if: runner.os == 'Windows'
+        working-directory: examples
+        shell: bash
+        run: echo "startup --output_user_root=C:/ --windows_enable_symlinks" >> .bazelrc
+
+      - name: Configure Bazel version
+        working-directory: examples
+        shell: bash
+        run: echo "${{ matrix.bazelversion }}" > .bazelversion
+
+      - name: Run tests
+        uses: protocolbuffers/protobuf-ci/bazel@v3
+        with:
+          credentials: ${{ secrets.GAR_SERVICE_ACCOUNT }}
+          bazel-cache: examples
+          version: ${{ matrix.bazelversion }}
+          bash: cd examples && bazel build //... $BAZEL_FLAGS --enable_bzlmod=${{ matrix.bzlmod }}