monorepo-deploy.yml

name: Monorepo Deploy Pipeline
on:
  pull_request:
  push:
    branches:
      - main
  schedule:
    # Scheduled build so pipeline failures are noticed quicker.
    - cron: "30 4 * * 1,3,5,0"

jobs:
  prepare:
    name: "Prepare (Find Projects, Warm dependency caches)"
    runs-on: ubuntu-latest
    outputs:
      projects: ${{ steps.find-projects.outputs.projects }}
    steps:
      - uses: actions/checkout@main
        with:
          fetch-depth: 10
      - uses: pnpm/action-setup@v4
        name: Install pnpm
        with:
          version: 8
          run_install: false
      - uses: actions/setup-node@v4
        with:
          node-version-file: ".nvmrc"
          cache: "pnpm"
      - name: Install Dependencies
        run: |
          rm services/personal-website/package.json
          pnpm install --ignore-scripts --prod=false
      - id: find-projects
        name: Find affected projects
        run: |
          lerna_args=()
          lerna_args+=('--all')
          lerna_args+=('--loglevel silent')
          lerna_args+=('--ignore @alexwilson/personal-website')

          # Lerna attempts to find any changed packages since the last update...
          if [[ $(pnpx lerna list ${lerna_args[@]} --since $MAIN_BRANCH | head -c1 | wc -c) -ne 0 ]]; then

            # If there are some, and this isn't a scheduled build, we prefer to test
            # and deploy only the updated packages.
            # Scheduled builds always update & deploy everything.
            if [ $GITHUB_EVENT_NAME != 'schedule' ]; then
              lerna_args+=("--since $MAIN_BRANCH")
            fi
          fi

          # Finally - we're ready to output as JSON for JQ to consume
          lerna_args+=('--json')

          echo "Github Event: $GITHUB_EVENT_NAME"
          echo "$ pnpx lerna list ${lerna_args[@]}"
          echo "$ jq ${jq_args[@]}"
          echo "$ echo projects=$(                  \
            pnpx lerna list ${lerna_args[@]}         \
            | jq -rjc -n '.include |= inputs'       \
          ) >> \$GITHUB_OUTPUT"
          echo "projects=$(                         \
            pnpx lerna list ${lerna_args[@]}         \
            | jq -rjc -n '.include |= inputs'       \
          )" >> $GITHUB_OUTPUT
        env:
          MAIN_BRANCH: "main"

  # Fetch dependencies and build Gatsby
  test:
    needs: [prepare]
    name: Test ${{ matrix.name }}
    runs-on: ubuntu-latest
    env:
      NODE_ENV: ${{ secrets.NODE_ENV }}
    strategy:
      matrix: ${{ fromJson(needs.prepare.outputs.projects) }}
    steps:
      - name: Checkout
        uses: actions/checkout@main
        with:
          fetch-depth: 1
      - uses: pnpm/action-setup@v4
        name: Install pnpm
        with:
          version: 8
          run_install: false
      - uses: actions/setup-node@v4
        with:
          node-version-file: ".nvmrc"
          cache: "pnpm"
      - name: Install Dependencies
        run: |
          rm  services/personal-website/package.json
          pnpm install --ignore-scripts --prod=false
      - name: Test
        run: pnpx lerna run test --scope ${{ matrix.name }}

  tests-passed:
    name: Tests Passed
    needs: [test]
    runs-on: ubuntu-latest
    steps:
      - run: echo "👍"

  deploy:
    strategy:
      matrix: ${{ fromJson(needs.prepare.outputs.projects) }}
    name: Deploy ${{ matrix.name }}
    needs: [prepare, tests-passed]
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/main' && github.event_name != 'pull_request'
    env:
      NODE_ENV: ${{ secrets.NODE_ENV }}
    steps:
      - name: Checkout
        uses: actions/checkout@main
        with:
          fetch-depth: 1
      - uses: pnpm/action-setup@v4
        name: Install pnpm
        with:
          version: 8
          run_install: false
      - uses: actions/setup-node@v4
        with:
          node-version-file: ".nvmrc"
          cache: "pnpm"
      - name: Install Dependencies
        run: |
          rm  services/personal-website/package.json
          pnpm install --ignore-scripts --prod=false
      - name: Deploy
        run: pnpx lerna run deploy --scope ${{ matrix.name }}
        env:
          CI: true
          CF_ZONE_ID: ${{ secrets.CF_ZONE_ID }}
          CF_ACCOUNT_ID: ${{ secrets.CF_ACCOUNT_ID }}
          CF_API_TOKEN: ${{ secrets.CF_API_TOKEN }}
          AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
          AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
          AWS_DEFAULT_REGION: "eu-west-1"