release.yml

name: Release

on:
  push:
    branches: ['main']

jobs:
  preconditions:
    runs-on: ubuntu-latest
    outputs:
      repo_name: ${{ steps.repo_ids.outputs.REPO_NAME }}
      org_name: ${{ steps.repo_ids.outputs.ORG_NAME }}
    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
      - name: Check token
        run: |
          if [ -z "${{ secrets.GITHUB_TOKEN }}"]; then
            echo "Must provide a GITHUB_TOKEN secret in order to run release workflow"
            exit 1
          fi
      - name: Get repository identifiers
        id: repo_ids
        run: |
          REPO_NAME=$(echo "${{ github.event.repository.name }}" | tr '[:upper:]' '[:lower:]')
          ORG_NAME=$(echo "${{ github.event.repository.owner.name }}" | tr '[:upper:]' '[:lower:]')
          echo "REPO_NAME=$REPO_NAME" >> $GITHUB_OUTPUT
          echo "ORG_NAME=$ORG_NAME" >> $GITHUB_OUTPUT

  lint:
    name: Run lint
    runs-on: ubuntu-latest
    needs: [preconditions]
    steps:
      - uses: actions/checkout@master
      - uses: actions/setup-node@master
        with:
          node-version: 16.x
      - name: Use npm v8
        run: npm install -g npm@8
      - name: Cache Node.js modules
        uses: actions/cache@v1
        with:
          path: ~/.npm # npm cache files are stored in `~/.npm` on Linux/macOS
          key: ${{ runner.OS }}-node-${{ hashFiles('**/package-lock.json') }}
          restore-keys: |
            ${{ runner.OS }}-node-
            ${{ runner.OS }}-
      - name: Install Packages
        run: npm ci
      - name: Lint
        run: npm run lint

  check-version:
    name: 'Check version'
    runs-on: ubuntu-latest
    outputs:
      is_new_version: ${{ steps.get_version.outputs.IS_NEW_VERSION }}
      version: ${{ steps.get_version.outputs.VERSION }}
      build_date: ${{ steps.get_version.outputs.BUILD_DATE }}
      is_prerelease: ${{ steps.get_version.outputs.IS_PRERELEASE }}

    steps:
      - uses: actions/checkout@v2
      - run: git fetch --depth=1 --tags origin
      - name: Install yq
        run: sudo snap install yq
      - name: Check Build Version
        id: get_version
        run: ./scripts/check-version.sh
        shell: bash
      - name: Skipping release as version has not increased
        if: steps.get_version.outputs.IS_NEW_VERSION != 'true'
        shell: bash
        run: |
          echo "Skipping release as current version has already been published"

  publish:
    name: 'Publish package'
    needs:
      - preconditions
      - lint
      - check-version
    runs-on: ubuntu-latest
    if: ${{ needs.check-version.outputs.is_new_version == 'true' }}

    steps:
      - uses: actions/checkout@v2

      # Docker build
      - name: Setup QEMU
        uses: docker/setup-qemu-action@v1
        with:
          platforms: all
      - name: Setup Docker Buildx
        id: buildx
        uses: docker/setup-buildx-action@v1
        with:
          buildkitd-flags: '--debug'
      - name: Login to GitHub Container Registry
        uses: docker/login-action@v1
        with:
          registry: ghcr.io
          username: $GITHUB_ACTOR
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Publish multi-arch image
        uses: docker/build-push-action@v2
        with:
          push: true
          builder: ${{ steps.buildx.outputs.name }}
          context: .
          file: ./Dockerfile
          platforms: linux/amd64
          tags: |
            ghcr.io/${{ needs.preconditions.outputs.org_name }}/${{ needs.preconditions.outputs.repo_name }}:${{ needs.check-version.outputs.version }}
            ghcr.io/${{ needs.preconditions.outputs.org_name }}/${{ needs.preconditions.outputs.repo_name }}:latest
          labels: |
            org.opencontainers.image.title=${{ needs.preconditions.outputs.repo_name }}
            org.opencontainers.image.description=${{ github.event.repository.description }}
            org.opencontainers.image.source=${{ github.event.repository.html_url }}
            org.opencontainers.image.url=${{ github.event.repository.html_url }}
            org.opencontainers.image.revision=${{ github.sha }}
            org.opencontainers.image.version=${{ needs.check-version.outputs.version }}
            org.opencontainers.image.created=${{ needs.check-version.outputs.build_date }}

      # Build github release
      - name: Build release version
        uses: softprops/action-gh-release@v1
        with:
          token: '${{ secrets.GITHUB_TOKEN }}'
          tag_name: ${{ needs.check-version.outputs.version }}
          prerelease: false
          name: ${{ needs.check-version.outputs.version }}
          generate_release_notes: true
      - name: Delete release latest
        uses: actions/github-script@v5
        with:
          github-token: ${{secrets.GITHUB_TOKEN}}
          script: |
            const { owner, repo } = context.repo
            try {
              await github.rest.git.deleteRef({ owner, repo, ref: 'tags/latest' })
            }
            catch (err) {
              if (err.status !== 422) throw err
            }
      - name: Build release latest
        uses: softprops/action-gh-release@v1
        with:
          token: '${{ secrets.GITHUB_TOKEN }}'
          tag_name: latest
          prerelease: false
          name: Latest ${{ needs.check-version.outputs.version }}
          generate_release_notes: true