pre-commit-autoupdate.yaml

name: Update pre-commit hooks
on:
  schedule:
    # Every monday at 7 AM
    - cron: 0 7 * * 1

  push:
    branches:
      - main
  page_build:

permissions:
      # Give the default GITHUB_TOKEN write permission to commit and push the
      # added or changed files to the repository.
      contents: write
      # Give the default GITHUB_TOKEN write permission to create or update
      # pull requests
      pull-requests: write

jobs:
  update:
    runs-on: ubuntu-latest
    if: github.repository_owner == 'mindstream-it'
    steps:
      - uses: actions/checkout@v4
        with:
          sparse-checkout: |
            .pre-commit-config.yaml

      - uses: actions/setup-python@v5
        with:
          # Read python version from a file .python-version
          python-version-file: '.python-version'

      - uses: actions/cache@v4
        with:
          path: |
            ~/.cache/pre-commit
            ~/.cache/pip
          key: "pre-commit-3|\
                ${{ env.pythonLocation }}|\
                ${{ hashFiles('.pre-commit-config.yaml') }}"

      - name: Install pre-commit
        run: python -m pip install pre-commit

      - name: Freeze pre-commit
        run: python -m pip freeze --local

      - name: Run `pre-commit autoupdate`
        id: pre-commit-autoupdate
        run: |
          echo 'LOG<<_PRECOMMIT_EOF' >>"$GITHUB_OUTPUT"
          {
            set -euo pipefail
            pre-commit autoupdate --freeze --color=never 2>&1
          } | tee -a "$GITHUB_OUTPUT"
          echo '_PRECOMMIT_EOF' >>"$GITHUB_OUTPUT"

      - name: Create branch
        id: pre-commit-create-branch
        if: contains(steps.pre-commit-autoupdate.outputs.LOG, ' updating ')
        # https://docs.github.com/en/rest/git/refs?apiVersion=2022-11-28#create-a-reference
        run: |
          gh api \
            --method POST \
            -H "Accept: application/vnd.github+json" \
            -H "X-GitHub-Api-Version: 2022-11-28" \
            "/repos/${GITHUB_REPOSITORY}/git/refs" \
            -f ref="refs/heads/${NEW_BRANCH_NAME}" \
            -f sha="${GITHUB_SHA}"
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          NEW_BRANCH_NAME: "bot-pre-commit-autoupdate-\
                            ${{ hashFiles('.pre-commit-config.yaml') }}"

      - uses: planetscale/ghcommit-action@v0.2.8
        # Commit changed files back to the repository
        # if no changed files then continue without error
        if: contains(steps.pre-commit-autoupdate.outputs.LOG, ' updating ')
        with:
          commit_message: "chore(deps): Update pre-commit hooks"
          repo: ${{ github.repository }}
          branch: "bot-pre-commit-autoupdate-\
                   ${{ hashFiles('.pre-commit-config.yaml') }}"
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - uses: peter-evans/create-pull-request@v6.0.5
        # Open Pull Requests if there are any commits on the target branch
        if: contains(steps.pre-commit-autoupdate.outputs.LOG, ' updating ')
        with:
          branch: "bot-pre-commit-autoupdate-\
                   ${{ hashFiles('.pre-commit-config.yaml') }}"
          title: "chore(deps): Update pre-commit hooks"
          body: |
            Updates pre-commit hooks

            <details>
            <summary>
              <code>pre-commit autoupdate --freeze --color=never</code>
            </summary>

            ```
            ${{ steps.pre-commit-autoupdate.outputs.LOG }}
            ```
            </details>
          labels: dependencies
          delete-branch: True