npm_ci_if_cache_miss github workflow example

npm_ci_if_cache_miss.yml

name: CI Pipeline

on:
  push:
    branches: [ main, develop ]
  pull_request:
    branches: [ main ]

jobs:
  npm_ci_if_cache_miss:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'

      - name: Restore npm cache
        uses: actions/cache@v4
        with:
          path: node_modules
          key: npm-ci-v1-${{ hashFiles('package-lock.json') }}
          restore-keys: |
            npm-ci-v1-
      - name: Run npm ci if cache miss
        run: |
          if [ -f node_modules/.package-lock.json ]; then
            echo "node_modules is not empty, so assuming there was a cache hit and skipping 'npm ci'"
          else
            npm ci --ignore-scripts --no-fund --no-audit
          fi
      - name: Run tests
        run: npm test