master.yml

name: Main Master Build

on:
  push:
    branches: [master]

jobs:
  build:
    runs-on: ubuntu-latest

    env:
      CI: true
      NODE_OPTIONS: --max-old-space-size=4096

    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4

      # Beginning of yarn setup
      - name: use node.js 20.x
        uses: actions/setup-node@39370e3970a6d050c480ffad4ff0ed4d3fdee5af # v4
        with:
          node-version: 20.x
          registry-url: https://registry.npmjs.org/ # Needed for auth
      - name: cache all node_modules
        id: cache-modules
        uses: actions/cache@6849a6489940f00c2f30c0fb92c6274307ccb58a # v4
        with:
          path: '**/node_modules'
          key: ${{ runner.os }}-node_modules-${{ hashFiles('yarn.lock', '**/package.json') }}
      - name: find location of global yarn cache
        id: yarn-cache
        if: steps.cache-modules.outputs.cache-hit != 'true'
        run: echo "dir=$(yarn config get cacheFolder)" >> $GITHUB_OUTPUT
      - name: cache global yarn cache
        uses: actions/cache@6849a6489940f00c2f30c0fb92c6274307ccb58a # v4
        if: steps.cache-modules.outputs.cache-hit != 'true'
        with:
          path: ${{ steps.yarn-cache.outputs.dir }}
          key: ${{ runner.os }}-yarn-${{ hashFiles('yarn.lock') }}
          restore-keys: |
            ${{ runner.os }}-yarn-
      - name: yarn install
        run: yarn install --immutable
      # End of yarn setup

      - name: lint
        run: yarn backstage-cli repo lint

      - name: type checking and declarations
        run: yarn tsc:full

      - name: build
        run: yarn build:all

      - name: Login to Heroku Container registry
        env:
          HEROKU_API_KEY: ${{ secrets.HEROKU_API_KEY }}
        run: heroku container:login

      - name: Build and push
        env:
          HEROKU_API_KEY: ${{ secrets.HEROKU_API_KEY }}
          DOCKER_BUILDKIT: 1
        run: heroku container:push -a ${{ secrets.HEROKU_APP_NAME }} web

      - name: Release
        env:
          HEROKU_API_KEY: ${{ secrets.HEROKU_API_KEY }}
        run: heroku container:release -a ${{ secrets.HEROKU_APP_NAME }} web

      # Post notification to Discord Announcements channel  
      - name: 'Check if last commit is a release'
        id: check_if_release
        run: node scripts/check-if-release.js ${{ github.sha }} 
      
      - name: Discord notification
        uses: Ilshidur/action-discord@0c4b27844ba47cb1c7bee539c8eead5284ce9fa9 # 0.3.2
        if: steps.check_if_release.outputs.is_release == 'true'
        env:
          DISCORD_WEBHOOK: ${{ secrets.DISCORD_RELEASE_WEBHOOK }}
          CURRENT_VERSION: ${{ steps.check_if_release.outputs.current_version }}
        with:
          args: 'The Backstage Demo site has been upgraded to release {{CURRENT_VERSION}} go check it out: https://demo.backstage.io'