pre-release.yml

name: Draft release pull request

on:
  pull_request:
    types: [closed]
    branches:
      - main

concurrency:
  group: ${{ github.workflow }}
  cancel-in-progress: true

jobs:
  generate-changelog:
    name: Create a PR to update version and release notes
    if: github.event.pull_request.merged == true
    permissions:
      contents: write
      actions: write
      pull-requests: write
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0 # Needed to get all tags for changelog generation
      - name: Set up Python 3.12
        uses: actions/setup-python@v4
        with:
          python-version: 3.12
          cache: pip
      - name: Install build tool
        run: python -m pip install hatch
      - name: Determine Version Bump from PR Labels
        id: version
        run: |
          BUMP="patch"
          LABELS='${{ toJSON(github.event.pull_request.labels.*.name) }}'
          echo "Checking labels: $LABELS"
          if echo "$LABELS" | grep -q "semver:major"; then
            BUMP="major"
          elif echo "$LABELS" | grep -q "semver:minor"; then
            BUMP="minor"
          elif echo "$LABELS" | grep -q "semver:alpha"; then
            BUMP="alpha"
          elif echo "$LABELS" | grep -q "semver:beta"; then
            BUMP="beta"
          elif echo "$LABELS" | grep -q "semver:preview"; then
            BUMP="preview"
          elif echo "$LABELS" | grep -q "semver:dev"; then
            BUMP="dev"
          fi
          echo "Version bump determined: $BUMP"
          echo "level=${BUMP}" >> $GITHUB_OUTPUT
      - name: Bump version
        run: hatch version ${{ steps.version.outputs.level }}
      - name: Generate release notes
        if: steps.version.outputs.level == 'major' || steps.version.outputs.level == 'minor' || steps.version.outputs.level == 'patch' || steps.version.outputs.level == 'beta'
        id: changelog
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          # This will be empty if there are no releases yet
          PREVIOUS_VERSION=$(gh release view --json tagName --jq .tagName 2>/dev/null || echo "")
          NEXT_VERSION="v$(hatch version)"
          echo "## $NEXT_VERSION ($(date -I))" > changelog.md

          # Build arguments for the API call
          ARGS=("--method" "POST" "-H" "Accept: application/vnd.github.v3+json" "/repos/jorgesolebur/CumulusCI_AzureDevOps/releases/generate-notes" "-f" "target_commitish=main" "-f" "tag_name=$NEXT_VERSION")
          if [ -n "$PREVIOUS_VERSION" ]; then
            echo "Generating notes between $PREVIOUS_VERSION and $NEXT_VERSION"
            ARGS+=("-f" "previous_tag_name=$PREVIOUS_VERSION")
          else
            echo "No previous release found. Generating notes for the first release."
          fi

          gh api "${ARGS[@]}" --jq '.body' |
            sed -e 's_\(https.*\/\)\([0-9]*\)$_[#\2](\1\2)_' \
                -e 's_by @\(.*\) in_by [@\1](https://github.com/\1) in_' >> changelog.md
          python utility/update-history.py
      - name: Lint history
        if: steps.version.outputs.level == 'major' || steps.version.outputs.level == 'minor' || steps.version.outputs.level == 'patch' || steps.version.outputs.level == 'beta'
        run: |
          npm install prettier
          npx prettier --write docs/history.md
      - name: Commit version and changelog
        run: |
          BRANCH_NAME="release-$(hatch version)"
          git config user.name github-actions[bot]
          git config user.email 41898282+github-actions[bot]@users.noreply.github.com
          git switch -c "$BRANCH_NAME"
          git add docs/history.md cumulusci_ado/__about__.py
          git commit -m "Update changelog (automated)"
          # Delete the remote branch if it exists, ignoring errors if it doesn't.
          git push origin --delete "$BRANCH_NAME" || true
          # Push the new branch.
          git push origin "$BRANCH_NAME"
      - name: Create and Merge Release PR
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          PR_URL=$(gh pr create --title "Release v$(hatch version)" --fill --label 'auto-pr')
          if [ -n "$PR_URL" ]; then
            echo "Created PR: $PR_URL"
            gh pr merge "$PR_URL" --merge --delete-branch
            echo "PR merged and branch deleted."
          else
            echo "PR creation failed."
            exit 1
          fi
      - name: Call Release Workflow
        uses: benc-uk/workflow-dispatch@v1
        with:
          workflow: "Publish and release CumulusCI_AzureDevOps"
          token: ${{ secrets.GITHUB_TOKEN }}
          ref: main