build.yml

name: Build

on:
  workflow_call:

jobs:
  prepare:
    name: Prepare
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - name: Use Node.js
        uses: actions/setup-node@v3
        with:
          node-version-file: '.nvmrc'
          cache: 'yarn'
      - name: Install Yarn dependencies
        run: yarn --immutable

  build:
    name: Build
    runs-on: ubuntu-latest
    needs:
      - prepare
    steps:
      - uses: actions/checkout@v3
      - name: Use Node.js
        uses: actions/setup-node@v3
        with:
          node-version-file: '.nvmrc'
          cache: 'yarn'
      - run: yarn --immutable --immutable-cache
      - run: yarn build
      - name: Require clean working directory
        shell: bash
        run: |
          if ! git diff --exit-code; then
            echo "Working tree dirty at end of job"
            exit 1
          fi