ci_automerge_dependabot.yml

name: CI - Activate auto-merging for Dependabot PRs

on:
  pull_request_target:
    branches: [ci/dependabot-updates]

jobs:
  update-dependabot-branch:
    name: Update permanent dependabot branch
    if: github.repository_owner == 'CasperWA' && startsWith(github.event.pull_request.head.ref, 'dependabot/') && github.actor == 'dependabot[bot]'
    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:
        fetch-depth: 0
        ref: ${{ github.event.pull_request.head.ref }}
        persist-credentials: false

    - name: Setup Python 3.9
      uses: actions/setup-python@v4
      with:
        python-version: "3.9"

    - 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: Install Python dependencies
      run: |
        python -m pip install --upgrade pip
        pip install -U setuptools wheel

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

        pip install ${invoke}
        pip install -r requirements.txt
        pip install .

    - name: Run tasks (and commit)
      run: |
        invoke update-pytest-reqs
        invoke create-canonized-test-file

        git add pyproject.toml tests/static/rdflib_canonized
        if [ -n "$(git status --porcelain pyproject.toml tests/static/rdflib_canonized)" ]; then
          # Only commit if there's something to commit (git will return non-zero otherwise)
          echo "Committing update to pytest dependency config and/or RDFlib version-specific canonized test file !"
          git commit -m "Update version-specific parts\n\nUpdate pytest dependency config and/or\nRDFlib version-specific canonized test file"
          echo "PUSH_BACK_TO_BRANCH=true" >> $GITHUB_ENV
        else
          echo "No changes to pytest dependency config and/or RDFlib version-specific canonized test file."
          echo "PUSH_BACK_TO_BRANCH=false" >> $GITHUB_ENV
        fi

    - name: Update Dependabot branch
      if: env.PUSH_BACK_TO_BRANCH == 'true'
      uses: ad-m/github-push-action@master
      with:
        github_token: ${{ secrets.RELEASE_PAT }}
        branch: ${{ github.event.pull_request.head.ref }}

    - name: Activate auto-merge
      run: |
        PR_ID="$(gh api graphql -F owner='{owner}' -F name='{repo}' -f query='query($owner: String!, $name: String!) {repository(owner: $owner, name: $name) {pullRequest(number: ${{ github.event.pull_request.number }}) {id}}}' --jq '.data.repository.pullRequest.id')"
        gh api graphql -f pr_id="$PR_ID" -f query='mutation($pr_id: ID!) {enablePullRequestAutoMerge(input:{mergeMethod:SQUASH,pullRequestId:$pr_id }) {pullRequest {number}}}'
      env:
        GITHUB_TOKEN: ${{ secrets.RELEASE_PAT }}