draft_release.yml

name: Create draft release

on:
  pull_request:
    branches:
      - test_next

jobs:
  draft_release:
    name: Draft release
    if: startsWith(github.head_ref, 'release/')
    runs-on: ubuntu-latest
    steps:
      - name: Checkout files
        uses: actions/checkout@v4
        with:
          fetch-tags: true

      - name: Setup Node.js
        uses: actions/setup-node@v3
        with:
          node-version: '18'

      - name: Fetch history and git
        run: |
          git fetch --prune --unshallow --tags
        # git fetch --prune --unshallow --tags

      - name: Install
        run: npm ci

      - name: Build and add dist files
        run: |
          rm -rf dist/
          npm run build:content
          git add package* dist/

      - name: Parse changelog
        id: get_changelog
        # when trying to use 'npm changelog' below it put escaped slash characters in the output, so opted for raw git log command
        # also multiline output here https://stackoverflow.com/questions/59191913/how-do-i-get-the-output-of-a-specific-step-in-github-actions
        run: |
            {
              echo 'changelog_text<<EOF'
              git log $(git describe --tags --abbrev=0)..HEAD --oneline --format="* %h %s (%an)"
              echo EOF
            } >> "$GITHUB_OUTPUT"

      - name: Get previous tag
        id: get_previous_tag
        run: |
          echo previous_tag=$(git describe --tags --abbrev=0) >> "$GITHUB_OUTPUT"
        # or this for get previous
        # run: |
        #   name=$(git --no-pager tag --sort=creatordate --merged ${{ github.ref_name }} | tail -2 | head -1)
        #   echo "previousTag: $name"
        #   echo "previousTag=$name" >> $GITHUB_ENV

      - name: Extract version from ref name
        id: extract_version
        run: |
          VERSION=$(echo "${{ github.ref_name }}" | grep -oP 'v\d+\.\d+\.\d+' || true)
          if [[ -n "$VERSION" ]]; then
            echo "versionFromBranch=$VERSION" >> "$GITHUB_OUTPUT"
          fi
        shell: bash

      - name: Determine version bump
        if: ${{ !steps.extract_version.outputs.versionFromBranch }}
        id: determine_bump
        # https://unix.stackexchange.com/questions/736318/make-grep-exit-1-if-found-and-exit-0-if-not-found
        run: |
          echo "${{ steps.get_changelog.outputs.changelog_text }}" | grep -q "feat:" && echo "isMinor=true" >> "$GITHUB_OUTPUT" || echo "isMinor=false" >> "$GITHUB_OUTPUT"
          echo "${{ steps.get_changelog.outputs.changelog_text }}" | grep -q "\!:" && echo "isBreakingChange=true" >> "$GITHUB_OUTPUT" || echo "isBreakingChange=false" >> "$GITHUB_OUTPUT"
        shell: bash

      - name: Config git user
        run: |
          git config user.name "${{ github.actor}}"
          git config user.email "${{ github.actor_id }}+${{ github.actor }}@users.noreply.github.com"

      - name: Bump version
        id: bump_version
        run: |
          npm version ${{
            steps.extract_version.outputs.versionFromBranch ||
            (steps.determine_bump.outputs.isBreakingChange=='true' && 'major') ||
            (steps.determine_bump.outputs.isMinor=='true' && 'minor') ||
            'patch'
            }} \
            --force -m "chore(release): Bumps version to v%s and updates dist files"
          echo updated_version=$(node -p "require('./package.json').version") >> "$GITHUB_OUTPUT"

      - name: Build notes
        id: build_notes
        uses: mikepenz/release-changelog-builder-action@v4.0.0
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          owner: Laboratoria
          fromTag: main
          toTag: next
          fetchViaCommits: true
          commitMode: true

      - name: Make release draft
        id: release_draft
        run: |
          echo ${{ steps.bump_version.outputs.updated_version }}
          echo ${{ steps.build_notes.outputs.changelog }}
        # gh release create ${{ steps.bump_version.outputs.updated_version }} \
        #     --repo="$GITHUB_REPOSITORY" \
        #     --title="${GITHUB_REPOSITORY#*/} ${{ steps.bump_version.outputs.updated_version }}" \
        #     --notes ${{steps.build_notes.outputs.changelog}} \
        #     --draft