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@master
      with:
        fetch-depth: 10
    - uses: actions/setup-node@v3
      with:
        node-version-file: '.nvmrc'
        cache: 'npm'
    - name: Install Dependencies
      run: |
        rm  services/personal-website/package.json
        npm config set legacy-peer-deps true
        npm ci --ignore-scripts --production=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 [[ $(npx 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: $GITHUB_EVENT_NAME"
        echo "$ npx lerna list ${lerna_args[@]}"
        echo "$ jq ${jq_args[@]}"
        echo "$ echo projects=$(                  \
          npx lerna list ${lerna_args[@]}         \
          | jq -rjc -n '.include |= inputs'       \
        ) >> \$GITHUB_OUTPUT"
        echo "projects=$(                         \
          npx 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@master
      with:
        fetch-depth: 1
    - uses: actions/setup-node@v3
      with:
        node-version-file: '.nvmrc'
        cache: 'npm'
    - name: Install Dependencies
      run: |
        rm  services/personal-website/package.json
        npm config set legacy-peer-deps true
        npm ci --ignore-scripts --production=false
    - name: Test
      run: npx 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@master
      with:
        fetch-depth: 1
    - uses: actions/setup-node@v3
      with:
        node-version-file: '.nvmrc'
        cache: 'npm'
    - name: Install Dependencies
      run: |
        rm  services/personal-website/package.json
        npm config set legacy-peer-deps true
        npm ci --ignore-scripts --production=false
    - name: Deploy
      run: npx 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"