format.yaml

name: Format

# Controls when the action will run.
on:
  # Triggers the workflow on push or pull request events but only for the main branch
  push:
    branches: [main]
  pull_request:
    branches: [main]

  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:

jobs:
  format:
    # The type of runner that the job will run on
    runs-on: ubuntu-latest

    # Steps represent a sequence of tasks that will be executed as part of the job
    steps:
      - uses: actions/checkout@v3

      - uses: bazelbuild/setup-bazelisk@v2

      - name: Mount bazel action cache
        uses: actions/cache@v2
        with:
          path: "~/.cache/bazel"
          key: bazel

      - name: Mount bazel repo cache
        uses: actions/cache@v2
        with:
          path: "~/.cache/bazel-repo"
          key: bazel-repo

      - name: Run format
        env:
          # Bazelisk will download bazel to here, ensure it is cached between runs.
          XDG_CACHE_HOME: ~/.cache/bazel-repo
        run: ./tools/format.sh

      - name: Check no changes
        run: bash -c "if [[ $(git status --porcelain | wc -l) -gt 0 ]]; then echo >&2 'Please run \`./tools/format.sh\` - Found differences after formatting:' && git diff && exit 1; fi"