deploy-staging.yaml

name: Deploy Staging News App to GCP App Engine

on:
  push:
    branches:
      - staging

  workflow_dispatch:

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Detect package manager
        id: detect-package-manager
        run: |
          if [ -f "${{ github.workspace }}/yarn.lock" ]; then
            echo "::set-output name=manager::yarn"
            echo "::set-output name=command::install"
            echo "::set-output name=runner::yarn"
            exit 0
          elif [ -f "${{ github.workspace }}/package.json" ]; then
            echo "::set-output name=manager::npm"
            echo "::set-output name=command::ci"
            echo "::set-output name=runner::npx --no-install"
            exit 0
          else
            echo "Unable to determine packager manager"
            exit 1
          fi

      - name: Setup Node
        uses: actions/setup-node@v3
        with:
          node-version: '16'
          cache: ${{ steps.detect-package-manager.outputs.manager }}

      - name: Restore cache
        uses: actions/cache@v3
        with:
          path: |
            .next/cache
          # Generate a new cache whenever packages or source files change.
          key: ${{ runner.os }}-nextjs-${{ hashFiles('**/package-lock.json', '**/yarn.lock') }}-${{ hashFiles('**.[jt]s', '**.[jt]sx') }}
          # If source files changed but packages didn't, rebuild from a prior cache.
          restore-keys: |
            ${{ runner.os }}-nextjs-${{ hashFiles('**/package-lock.json', '**/yarn.lock') }}-

      - name: Install dependencies
        run: ${{ steps.detect-package-manager.outputs.manager }} ${{ steps.detect-package-manager.outputs.command }}

      - name: Build with Next.js
        run: |
          echo "export const ENV = {
            WS_URL: '${{ secrets.STAGING_WS_URL }}',
            API_URL: '${{ secrets.STAGING_API_URL }}'
          };" > ./src/lib/env.ts

          ${{ steps.detect-package-manager.outputs.runner }} next build

      - id: 'auth'
        name: 'Authenticate with GCP'
        uses: 'google-github-actions/auth@v0'
        with:
          credentials_json: '${{ secrets.GCP_SA_KEY }}'

      - id: 'deploy'
        name: 'Deploy to App Engine'
        uses: 'google-github-actions/deploy-appengine@v1'
        with:
          deliverables: staging.yaml
          project_id: ${{ secrets.GCP_PROJECT }}

      - name: 'Check Deployment'
        run: 'curl "${{ steps.deploy.outputs.url }}"'