livekit-rtc: add proto generation to the build CI (#295)

Author: theomonnom

.github/workflows/build-protocol.yml

@@ -38,7 +38,7 @@ jobs:
       - name: Install Protoc
         uses: arduino/setup-protoc@v2
         with:
-          version: "25.3"
+          version: "25.1"
           repo-token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: generate python stubs

.github/workflows/build-rtc.yml

@@ -19,6 +19,43 @@ env:
   PACKAGE_DIR: ./livekit-rtc
 
 jobs:
+  generate_protobuf:
+    runs-on: ubuntu-latest
+    name: Generating protobuf
+    if: github.event_name == 'pull_request'
+
+    defaults:
+      run:
+        working-directory: ${{ env.PACKAGE_DIR }}
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: true
+          ref: ${{ github.event.pull_request.head.ref }}
+
+      - uses: actions/setup-python@v4
+
+      - name: Install Protoc
+        uses: arduino/setup-protoc@v2
+        with:
+          version: "25.1"
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Install deps
+        run: |
+          pip3 install mypy-protobuf==3.6.0
+
+      - name: generate python stubs
+        run: ./generate_proto.sh
+
+      - name: Add changes
+        uses: EndBug/add-and-commit@v9
+        with:
+          add: '["livekit-rtc/"]'
+          default_author: github_actions
+          message: generated protobuf
+
+
   build_wheels:
     name: Build RTC wheels (${{ matrix.archs }})
     runs-on: ${{ matrix.os }}

livekit-rtc/generate_proto.sh

@@ -12,7 +12,9 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+#
 # This script requires protobuf-compiler and https://github.com/nipunn1313/mypy-protobuf
+# (Used by the build-rtc CI)
 
 FFI_PROTOCOL=./rust-sdks/livekit-ffi/protocol
 FFI_OUT_PYTHON=./livekit/rtc/_proto