pre_release_checks.yml

name: Pre Release Checks
on:
  pull_request:
    types: [synchronize, opened, edited, reopened, unlocked, labeled]
    branches: [main]

concurrency: ${{ github.workflow }}-${{ github.ref }}

permissions:
  contents: write
  issues: write
  pull-requests: write
  repository-projects: write
  statuses: write
  actions: write

jobs:
  auto-label:
    runs-on: ubuntu-latest
    if: contains(github.event.pull_request.labels.*.name , 'release:true') == false
    steps:
      - name: Check out Git repository
        uses: actions/checkout@v3

      - name: Setup Node.js
        uses: actions/setup-node@v3
        with:
          node-version: 20
          cache: "npm"

      - name: Install Node.js dependencies
        run: npm ci

      - name: Labeler
        uses: actions/labeler@v5.0.0
        with:
          repo-token: ${{ secrets.GITHUB_TOKEN }}
          configuration-path: .github/config/labeler.yml
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

  pre-release-checks:
    if: contains(github.event.pull_request.labels.*.name, 'release:true')
    runs-on: ubuntu-latest
    steps:
      - name: Check out Git repository
        uses: actions/checkout@v3
        with:
          # This fetches the history for all branches and tags, necessary for changeset to calculate version bumps accurately.
          fetch-depth: 0
          # Ensures the action checks out the PR head commit rather than the merge commit.
          ref: ${{ github.event.pull_request.head.ref }}

      - name: Setup Node.js
        uses: actions/setup-node@v3
        with:
          node-version: 20
          cache: "npm"

      - name: Install Node.js dependencies
        run: npm ci

      - name: Check for Changelog file
        id: check
        run: |
          echo "Checking for Changelog file..."
          git fetch --all  --prune
          echo "Base ref: ${{ github.base_ref }}"
          echo "Head ref: ${{ github.head_ref }}"
          CHANGES_FOUND=$(git diff --name-only refs/remotes/origin/${{  github.base_ref }}...${{ github.head_ref }} | grep 'CHANGELOG.md' | wc -l)
          echo "Changeset files found: $CHANGES_FOUND"
          if [ "$CHANGES_FOUND" -eq "0" ]; then
            echo "No Changeset found for PR labeled with 'release:true'."
            echo "CHANGE_LOG_PRESENT=false" >> $GITHUB_ENV
          else
            echo "Changeset found."
            echo "CHANGE_LOG_PRESENT=true" >> $GITHUB_ENV
          fi

      - name: Fail if no Changelog is present
        if: env.CHANGE_LOG_PRESENT == 'false'
        run: |
          echo "This PR is marked for release but does not contain a Changeset file."
          echo "Please add a Changeset file to indicate the changes being released."
          exit 1
        env:
          CHANGE_LOG_PRESENT: ${{ env.CHANGE_LOG_PRESENT }}

      - name: Extract package version
        id: package-version
        run: echo "PACKAGE_VERSION=$(node -p "require('./package.json').version")" >> $GITHUB_ENV

      - name: Update PR title with version
        run: |
          PR_NUMBER=${{ github.event.pull_request.number }}
          PACKAGE_VERSION="${{ env.PACKAGE_VERSION }}"
          VERSION_PATTERN="Release $PACKAGE_VERSION"
          NEW_TITLE=" ${VERSION_PATTERN}"
          gh pr edit "$PR_NUMBER" --title "$NEW_TITLE"
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          PR_NUMBER: ${{ github.event.pull_request.number }}
          PACKAGE_VERSION: ${{ env.PACKAGE_VERSION }}