4. GitHub Actions Syntax

1name: Workflow Name
2
3on: [push, pull_request]
4
5env:
6  RAILS_ENV: test
7
8jobs:
9  job-name:
10    runs-on: ubuntu-latest
11    
12    env:
13      DATABASE_URL: postgres://localhost/test
14    
15    services:
16      postgres:
17        image: postgres:15
18        env:
19          POSTGRES_PASSWORD: postgres
20        ports:
21          - 5432:5432
22    
23    steps:
24      - uses: actions/checkout@v4
25      - run: echo "Hello World"

1steps:
2  # Use action with version
3  - uses: actions/checkout@v4
4  
5  # With inputs
6  - uses: ruby/setup-ruby@v1
7    with:
8      ruby-version: '3.2'
9      bundler-cache: true
10  
11  # Run command
12  - run: bundle exec rspec
13  
14  # Multi-line command
15  - run: |
16      bundle install
17      bundle exec rails db:setup
18      bundle exec rspec

1jobs:
2  test:
3    runs-on: ubuntu-latest
4    steps: [...]
5
6  deploy:
7    needs: test  # Runs after test passes
8    runs-on: ubuntu-latest
9    steps: [...]

1steps:
2  - run: echo "Only on main"
3    if: github.ref == 'refs/heads/main'