ci_dependabot.yml

name: CI - Single Dependabot PR

on:
  schedule:
    # At 8:30 every Wednesday (6:30 UTC)
    # Dependabot runs once a week (every Monday) (pip)
    # and every day (GH Actions) at 7:00 (5:00 UTC)
    - cron: "30 6 * * 3"

jobs:
  create-collected-pr:
    name: Single dependabot PR
    if: github.repository_owner == 'CasperWA'
    runs-on: ubuntu-latest
    env:
      DEPENDABOT_BRANCH: ci/dependabot-updates
      GIT_USER_NAME: CasperWA
      GIT_USER_EMAIL: "casper+github@welzel.nu"

    steps:
    - name: Checkout repository
      uses: actions/checkout@v4
      with:
        ref: main

    - name: Set up Python 3.11
      uses: actions/setup-python@v5
      with:
        python-version: '3.11'

    - name: Install `pre-commit`
      run: |
        python -m pip install -U pip
        pip install -U setuptools wheel

        while IFS="" read -r line || [ -n "${line}" ]; do
          if [[ "${line}" =~ ^pre-commit.*$ ]]; then
            pre_commit="${line}"
          fi
        done < requirements_dev.txt

        pip install ${pre_commit}

    - name: Set up git user info
      run: |
        git config --global user.name "${{ env.GIT_USER_NAME }}"
        git config --global user.email "${{ env.GIT_USER_EMAIL }}"

    - name: Reset to '${{ env.DEPENDABOT_BRANCH }}'
      run: |
        git fetch origin ${{ env.DEPENDABOT_BRANCH }}:${{ env.DEPENDABOT_BRANCH }}
        git reset --hard ${{ env.DEPENDABOT_BRANCH }}

    - name: Auto-update `pre-commit` hooks
      run: |
        pre-commit autoupdate

        if [ -n "$(git status --porcelain .pre-commit-config.yaml)" ]; then
          # Set environment variable notifying next steps that the hooks changed
          echo "Pre-commit hooks have been updated !"
          echo "UPDATED_PRE_COMMIT_HOOKS=true" >> $GITHUB_ENV
        else
          echo "No pre-commit hooks have been updated."
          echo "UPDATED_PRE_COMMIT_HOOKS=false" >> $GITHUB_ENV
        fi

    - name: Possibly run `pre-commit` with updated hooks
      if: env.UPDATED_PRE_COMMIT_HOOKS == 'true'
      continue-on-error: true  # Still create the PR if this step fails
      run: SKIP=pylint pre-commit run --all-files

    - name: Possibly commit changes and updates
      if: env.UPDATED_PRE_COMMIT_HOOKS == 'true'
      run: git commit -am "Update \`pre-commit\` hooks"

    - name: Fetch PR body
      id: pr_body
      uses: chuhlomin/render-template@v1.10
      with:
        template: .github/utils/single_dependency_pr_body.txt

    - name: Create PR
      id: cpr
      uses: peter-evans/create-pull-request@v7
      with:
        token: ${{ secrets.CI_RESET_TEST_BRANCHES }}
        commit-message: New @dependabot-fueled updates
        committer: "${{ env.GIT_USER_NAME }} <${{ env.GIT_USER_EMAIL }}>"
        author: "${{ env.GIT_USER_NAME }} <${{ env.GIT_USER_EMAIL }}>"
        branch: ci/update-dependencies
        delete-branch: true
        title: Update dependencies
        body: ${{ steps.pr_body.outputs.result }}
        labels: dependencies,github_actions,python

    - name: Information
      run: 'echo "${{ steps.cpr.outputs.pull-request-operation }} PR #${{ steps.cpr.outputs.pull-request-number }}: ${{ steps.cpr.outputs.pull-request-url }}"'