merge.yml

name: CI / Merge

on:
  push:
    branches:
      - staging
      - feature*

jobs:
  check-lint:
    name: "Check / Lint"
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Run linting
        run: |
          npm install
          npm run lint
          npm run lint-shell

  check-build:
    name: "Check / Build"
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Run build
        run: |
          npm install
          npm run build --verbose

  check-matrix:
    name: "Check / Matrix"
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.set-matrix.outputs.matrix }}
    steps:
      - uses: actions/checkout@v4
      - id: set-matrix
        run: |
          files=$(find tests/* -maxdepth 0 -type d | sed 's/.*/"&"/' | paste -sd, -)
          files=$files,$(find tests/* -maxdepth 0 -type f | grep -e "/*.test.ts" | sed 's/.*/"&"/' | paste -sd, -)
          if [ -z "$files" ]; then
            echo "matrix={\"shard\":[]}" >> $GITHUB_OUTPUT
          else
            echo "matrix={\"shard\":[$files]}" >> $GITHUB_OUTPUT
          fi

  check-test:
    name: "Check / Test"
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix: ${{fromJson(needs.check-matrix.outputs.matrix)}}
    needs: check-matrix
    steps:
      - uses: actions/checkout@v4
      - name: Set artifact name
        run: echo "SLUG=$(echo ${{ matrix.shard }} | sed 's/[/.]/-/g')" >> $GITHUB_ENV
      - name: Run tests
        run: |
          npm install
          npm run test -- \
            --coverageReporters json \
            --coverage \
            "${{ matrix.shard }}"
          mv tmp/coverage/coverage-final.json "tmp/coverage/${{ env.SLUG }}.json"
      - uses: actions/upload-artifact@v4
        with:
          name: coverage-artifacts-${{ env.SLUG }}
          path: tmp/coverage/

  check-coverage:
    name: "Check / Coverage"
    runs-on: ubuntu-latest
    needs: check-test
    steps:
      - uses: actions/checkout@v4
      - uses: actions/download-artifact@v4
        with:
          pattern: coverage-artifacts-*
          path: tmp/coverage/
          merge-multiple: true
      - name: Merge coverage results
        run: npx nyc merge tmp/coverage/ tmp/coverage/cobertura-coverage.json
      - uses: actions/upload-artifact@v4
        with:
          name: cobertura-coverage
          path: tmp/coverage/cobertura-coverage.json

  build-pull:
    name: "Build / Pull Request"
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/staging'
    steps:
      - uses: actions/checkout@v4
      - name: Create pull request
        env:
          GH_TOKEN: ${{ secrets.GH_TOKEN }}
        run: |
          gh pr create \
            --head staging \
            --base master \
            --title "ci: merge staging to master" \
            --body "This is an automatic PR generated by the CI/CD pipeline. This will be automatically fast-forward merged if successful." \
            --assignee "@me" \
            --no-maintainer-edit || true
          printf "Pipeline Attempt on $GITHUB_RUN_ID for $GITHUB_SHA\n\n$GITHUB_SERVER_URL/$GITHUB_REPOSITORY/actions/runs/$GITHUB_RUN_ID" \
          | gh pr comment staging \
            --body-file - \
            --repo "$GITHUB_REPOSITORY"

  integration-merge:
    name: "Integration / Merge"
    runs-on: ubuntu-latest
    concurrency:
      group: integration-merge
      cancel-in-progress: true
    needs:
      - check-lint
      - check-build
      - check-test
      - build-pull
    if: github.ref == 'refs/heads/staging'
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.GH_TOKEN }}
      - name: Merge into master
        env:
          GH_TOKEN: ${{ secrets.GH_TOKEN }}
          GIT_AUTHOR_EMAIL: ${{ secrets.GIT_AUTHOR_EMAIL }}
          GIT_AUTHOR_NAME: ${{ secrets.GIT_AUTHOR_NAME }}
          GIT_COMMITTER_EMAIL: ${{ secrets.GIT_COMMITTER_EMAIL }}
          GIT_COMMITTER_NAME: ${{ secrets.GIT_COMMITTER_NAME }}
        run: |
          printf "Pipeline Succeeded on $GITHUB_RUN_ID for $GITHUB_SHA\n\n$GITHUB_SERVER_URL/$GITHUB_REPOSITORY/actions/runs/$GITHUB_RUN_ID" \
          | gh pr comment staging \
            --body-file - \
            --repo "$GITHUB_REPOSITORY"
          git checkout master
          git merge --ff-only "$GITHUB_SHA"
          git push origin master