pre-commit.yaml

name: pre-commit

env:
  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true

on:
  push:
    branches: [dev, main]
  pull_request:
    branches: [dev, main]
  workflow_call:
    inputs:
      working-directory:
        type: string
        required: false
        default: '.'

jobs:
  pre-commit:
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write
    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ github.head_ref || github.ref_name }}

      - name: Set up Python
        id: setup-python
        uses: actions/setup-python@v5
        with:
          python-version: '3.10'
          cache: 'pip'

      - uses: actions/cache@v4
        with:
          path: ~/.cache/pre-commit
          key: >
            ${{ format('pre-commit-{0}-{1}',
            steps.setup-python.outputs.python-version,
            hashFiles('.pre-commit-config.yaml')
            ) }}

      - name: Install pre-commit
        run: |
          pip install --upgrade pip
          pip install pre-commit
          pre-commit install

      - name: Run pre-commit hooks
        continue-on-error: true
        working-directory: ${{ inputs.working-directory }}
        run: |
          git fetch --no-tags --depth=1 origin "${{ github.base_ref }}:refs/remotes/origin/${{ github.base_ref }}"
          if [ "${{ github.event_name }}" = "pull_request" ]; then
            pre-commit run \
              --from-ref "origin/${{ github.base_ref }}" \
              --to-ref "HEAD" \
              --show-diff-on-failure \
              --color=always
          else
            pre-commit run \
              --from-ref "HEAD~1" \
              --to-ref "HEAD" \
              --show-diff-on-failure \
              --color=always
          fi

      - name: Commit if changes
        # always() bypasses the error code from pre-commit.
        # don't run again if this review has been triggered by github-actions[bot],
        #   since this would create an action loop.
        if: github.event_name == 'pull_request' && github.actor != 'github-actions[bot]'
        # Normally github message would include [skip ci] to prevent loops, but since this is the pre-commit fixer, it should be stable.
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add -A
          if ! git diff --cached --quiet; then
            git commit -m "chore: auto-format code [skip ci]"
            git push
          fi

      - name: Re-run pre-commit hooks
        working-directory: ${{ inputs.working-directory }}
        run: |
          git fetch --no-tags --depth=1 origin "${{ github.base_ref }}:refs/remotes/origin/${{ github.base_ref }}"
          if [ "${{ github.event_name }}" = "pull_request" ]; then
            pre-commit run \
              --from-ref "origin/${{ github.base_ref }}" \
              --to-ref "HEAD" \
              --show-diff-on-failure \
              --color=always
          else
            pre-commit run \
              --from-ref "HEAD~1" \
              --to-ref "HEAD" \
              --show-diff-on-failure \
              --color=always
          fi