clang_format.yml

name: clang-format

on:
  pull_request:

jobs:
  clang-format:
    runs-on: ubuntu-18.04
    steps:
      - name: Setup Python
        uses: actions/setup-python@v2
        with:
          python-version: 3.x
          architecture: x64
      - name: Fetch PyTorch
        uses: actions/checkout@v2
        with:
          fetch-depth: 0 # deep clone, to allow us to use git merge-base
      - name: Run clang-format
        run: |
          set -eu
          # This is necessary to get the same results regardless of whether the
          # PR was opened directly or from a forked repo. See: `9f890a92` for more info.
          git remote add upstream https://github.com/pytorch/pytorch
          git fetch upstream "$GITHUB_BASE_REF"

          # only run clang-format on allowlisted files
          echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
          echo "| clang-format failures found! Run: "
          echo "|    tools/clang_format_ci.sh ${BASE_SHA} "
          echo "| to fix this error. "
          echo "| For more info, see: https://github.com/pytorch/pytorch/wiki/clang-format "
          echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"

          tools/clang_format_ci.sh "${BASE_SHA}"

          GIT_DIFF=$(git diff)
          if [[ -z $GIT_DIFF ]]; then
            exit 0
          fi
          echo "$GIT_DIFF"
          exit 1
        env:
          BASE_SHA: ${{ github.event.pull_request.base.sha }}