name: Migration Review
on:
  pull_request_target:
    types: [opened]
    paths:
      - 'ghost/core/core/server/data/schema/**'
      - 'ghost/core/core/server/data/migrations/versions/**'
jobs:
  createComment:
    runs-on: ubuntu-latest
    if: github.repository_owner == 'TryGhost'
    name: Add migration review requirements
    steps:
      - uses: actions/github-script@v6
        with:
          script: |
            github.rest.issues.addLabels({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              labels: ["migration"]
            })

      - uses: peter-evans/create-or-update-comment@1f6c51492b7d8e91122ece56e2eb7ed38df14079
        with:
          issue-number: ${{ github.event.pull_request.number }}
          body: |
            It looks like this PR contains a migration 👀
            Here's the checklist for reviewing migrations:

            ### General requirements

            - [ ]  Satisfies idempotency requirement (both `up()` and `down()`)
            - [ ]  Does not reference models
            - [ ]  Filename is in the correct format (and correctly ordered)
            - [ ]  Targets the next minor version
            - [ ]  All code paths have appropriate log messages
            - [ ]  Uses the correct utils
            - [ ]  Contains a minimal changeset
            - [ ]  Does not mix DDL/DML operations

            ### Schema changes

            - [ ]  Both schema change and related migration have been implemented
            - [ ]  For index changes: has been performance tested for large tables
            - [ ]  For new tables/columns: fields use the appropriate predefined field lengths
            - [ ]  For new tables/columns: field names follow the appropriate conventions
            - [ ]  Does not drop a non-alpha table outside of a major version

            ### Data changes

            - [ ]  Mass updates/inserts are batched appropriately
            - [ ]  Does not loop over large tables/datasets
            - [ ]  Defends against missing or invalid data
            - [ ]  For settings updates: follows the appropriate guidelines