Developing with Firebase

firebase_hosting_preview.yml

      # Deploy the project only on push.
      - name: Deploy to Firebase
        if: github.event_name == 'push'
        # Only deploy hosting here... functions etc are deployed separately
        run: >-
            firebase
            deploy
            --only hosting
            -m "Github action run $GITHUB_RUN_ID"
            --non-interactive
            --force

      - name: Set up preview channel
        if: github.event_name == 'pull_request'
        # Deploying to preview channel using the branch name as channel name
        # String split '/' and use the last part of the branch name
        run: |
          echo "CHANNEL_NAME=$(echo ${{ github.head_ref }} | grep -o '[^/]*$')" >> $GITHUB_ENV
          echo "CHANNEL_LIFESPAN=3d" >> $GITHUB_ENV

      - name: Deploy preview channel to Firebase
        if: github.event_name == 'pull_request'
        run: >-
            firebase
            hosting:channel:deploy
            ${{ env.CHANNEL_NAME }}
            --expires ${{ env.CHANNEL_LIFESPAN }}

      - name: Get preview URL
        if: github.event_name == 'pull_request'
        run: |
          echo "PREVIEW_URL=$(firebase hosting:channel:list | grep ${{ env.CHANNEL_NAME }} |  grep -o 'https.*\.app')" >> $GITHUB_ENV

      - name: Post preview channel URL as a PR comments
        uses: mshick/add-pr-comment@v2
        with:
          message-id: ${{ matrix.project }}
          allow-repeats: false
          message: |
            Preview the `${{ matrix.project }}` app for ${{ env.CHANNEL_LIFESPAN }}: ${{ env.PREVIEW_URL }}