11. Handling Migrations

1# Fast: Load schema directly
2- run: bundle exec rails db:schema:load
3
4# Safe: Run all migrations
5- run: bundle exec rails db:migrate

1jobs:
2  test-migrations:
3    runs-on: ubuntu-latest
4    services:
5      postgres:
6        image: postgres:15
7        # ...
8    
9    steps:
10      - uses: actions/checkout@v4
11        with:
12          fetch-depth: 0  # Full history
13      
14      - name: Checkout main
15        run: git checkout main
16      
17      - name: Setup database
18        run: |
19          bundle install
20          bundle exec rails db:create db:migrate
21      
22      - name: Checkout PR branch
23        run: git checkout ${{ github.head_ref }}
24      
25      - name: Run new migrations
26        run: |
27          bundle install
28          bundle exec rails db:migrate

1- name: Setup database
2  run: |
3    bundle exec rails db:schema:load
4    bundle exec rails db:seed

1- name: Cache database
2  uses: actions/cache@v3
3  with:
4    path: db/test.sqlite3
5    key: db-${{ hashFiles('db/schema.rb') }}