release.yml

name: Release

# triggers on pushes to the 'prod' branch
on:
  push:
    # NOTE(thuang): Since REGEX is not supported for branches, we cannot target
    # any versioned branch: "+([0-9])?(.{+([0-9]),x}).x" as specified in
    # .releaserc.js. So we'll need to manually add such branch's name here manually
    branches:
      - prod

jobs:
  # Job 1
  release:
    name: Release
    runs-on: ubuntu-latest # Use the latest version of the Ubuntu runner environment

    steps:
      # Step 1: Check out the repository code
      - name: Checkout
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      # Step 2: Set up Node.js environment and cache Yarn dependencies
      - name: Setup Node.js and Cache yarn
        uses: actions/setup-node@v3
        with:
          node-version-file: ".node-version" # Specify the Node.js version from '.node-version' file
          cache: "yarn" # Cache Yarn dependencies for faster builds

      # Step 3: Set up npm and authentication
      - name: "Setup npm"
        run: |
          npm set "//registry.npmjs.org/:_authToken=${NODE_AUTH_TOKEN}"
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

      # Step 4: Ensure npm access
      - name: Ensure NPM access
        run: npm whoami
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

      # Step 5: Install project dependencies using Yarn
      - name: Install dependencies
        run: yarn

      # Step 6: Build the component library in 'dist/' directory
      - name: Build component library in dist/
        run: yarn build

      # Step 7: Configure git user for pushing release changes back to prod branch
      - name: Config git user
        run: |
          git config --global user.name "${{ github.actor }}"
          git config --global user.email "${{ github.actor }}@users.noreply.github.com"

      # Step 8: Reset working directory
      - name: Reset working directory
        run: git checkout -- .

      # Step 9: Lerna Version
      - name: Lerna Version
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
        run: yarn version:ci

      # Step 10: Commit changes
      - name: Commit changes
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        uses: stefanzweifel/git-auto-commit-action@v4
        with:
          commit_message: "chore(release): Publish"
          branch: ${{ github.head_ref }}

      # Step 11: Publish NPM packages
      - name: Lerna Publish
        env:
          NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}
        run: yarn publish:ci

      # Step 12: Post breaking changes to a Slack channel
      - name: Post breaking changes to a Slack channel
        env:
          SLACK_WEBHOOK_URL: ${{ secrets.SDS_BREAKING_CHANGES_SLACK_WEBHOOK }}
        uses: act10ns/slack@v1
        with:
          status: complete
          channel: "#sci-design-system-breaking-changes"
          config: .github/config/slack.yml
        if: contains(toJson(github.event.commits.*.message), 'BREAKING CHANGE')

      # Step 13: Merge prod branch into main
      - name: Create PR to merge prod into main
        id: createpr
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        uses: actions/github-script@v6
        with:
          script: |
            const ownerAndRepo = '${{ github.repository }}';
            const [owner, repo] = ownerAndRepo.split('/');
            const head = "prod";
            const base = "main";
            const title = "chore(release): Merge prod into main";
            const pr = await github.rest.pulls.list({owner, repo, base, head: `${owner}:${head}`})
            if (pr.data.length>0) {
              return pr.data[0].number;
            }
            const result = await github.rest.pulls.create({
              owner,
              repo,
              head,
              base,
              title,
            });
            return result.data.number;

      # Steps 13 - 15 are temporarily disable until we find a solution
      # to the issue of GitHub Actions not being able to merge PRs

      # Step 13: Automerge PR
      # - name: Enable Automerge PR
      #   env:
      #     GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      #   uses: peter-evans/enable-pull-request-automerge@v3
      #   with:
      #     pull-request-number: ${{steps.createpr.outputs.result}}
      #     merge-method: squash

      # Step 14: Generate token for autoapproving PR
      # - name: Generate token
      #   id: generate_token
      #   uses: chanzuckerberg/github-app-token@v1.1.4
      #   with:
      #     app_id: ${{ secrets.CZI_GITHUB_HELPER_APP_ID }}
      #     private_key: ${{ secrets.CZI_GITHUB_HELPER_PK }}

      # Step 15: Autoapprove PR
      # - name: Autoapprove PR
      #   run: gh pr review --approve "${{steps.createpr.outputs.result}}"
      #   env:
      #     GITHUB_TOKEN: ${{ steps.generate_token.outputs.token }}

  # Job 2
  create-version-matrix:
    needs: release
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.set-matrix.outputs.matrix }}
    steps:
      # Step 1: Check out the repository code
      - name: Checkout Repository
        uses: actions/checkout@v3
        with:
          fetch-depth: 0
          ref: prod

      # Step 2: Create a matrix of package versions and names
      - name: Create Versions Matrix
        id: set-matrix
        run: |
          matrix="["
          for package_json in $(find ./packages -name package.json); do
            version=$(jq -r .version "$package_json")
            name=$(jq -r .name "$package_json")
            matrix="${matrix}{\"name\":\"${name}\", \"version\":\"${version}\"},"
          done
          matrix="${matrix%,}" # Remove trailing comma
          matrix="${matrix}]" # Close the JSON array
          echo "matrix=${matrix}" >> $GITHUB_OUTPUT

  # Job 3
  create-github-release:
    needs: create-version-matrix
    runs-on: ubuntu-latest
    strategy:
      matrix:
        cfg: ${{fromJson(needs.create-version-matrix.outputs.matrix)}}
    steps:
      # Step 1: Create a GitHub release for the latest version
      - name: Release
        uses: softprops/action-gh-release@v1
        with:
          tag_name: "${{ matrix.cfg.name }}@${{ matrix.cfg.version }}"