ci-migrations.yml

name: ci-migrations

on:
  push:
    branches: [ main, release/** ]
  pull_request:
  workflow_dispatch:

jobs:
  janus_migrations:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
      with:
        fetch-depth: 0
    - name: Check that existing migrations have not changed
      if: |
        github.event_name == 'pull_request' && 
        !contains(github.event.pull_request.labels.*.name, 'allow-changed-migrations')
      env:
        BASE_SHA: "${{ github.event.pull_request.base.sha }}"
      run: |
        # --diff-filter=a includes all differences except added files.
        if ! git diff --exit-code --diff-filter=a "$BASE_SHA" ./db; then
          echo "fatal: migrations cannot be modified or removed, only added"
          exit 1
        fi
    - name: Check validity of migrations
      uses: "./.github/actions/validate-migrations"