name: Check protobuf generated files

on:
  pull_request:
    paths:
      - aioesphomeapi/api_options_pb2.py
      - aioesphomeapi/api_pb2.py

jobs:
  protoc-update:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Set up Python
        uses: actions/setup-python@v2
        with:
          python-version: '3.7'
      - name: Install protoc
        run: |
          sudo apt-get install protobuf-compiler
      - name: Set up Python environment
        run: |
          pip3 install -e .
          pip3 install -r requirements_test.txt

      - name: Generate protoc
        run: |
          script/gen-protoc

      - name: Check changes
        run: |
          if ! git diff --quiet; then
            echo "You have altered the generated proto files but they do not match what is expected."
            echo "Please check your local protobuf-compiler version."
            protoc --version
            exit 1
          fi