name: check if migration is required
on:
  pull_request:
    paths:
      # Matches all python files regardless of directory depth.
      - '**.py'
      - requirements*.txt

jobs:
  main:
    name: is migration required
    runs-on: ubuntu-16.04

    steps:
      - uses: actions/checkout@v2

      - name: Set python version output
        id: python-version
        run: |
          echo "::set-output name=python-version::$(cat .python-version)"

      # Until GH composite actions can use `uses`, we need to setup python here
      - uses: actions/setup-python@v2
        with:
          python-version: ${{ steps.python-version.outputs.python-version }}

      - name: Setup pip
        uses: ./.github/actions/setup-pip
        id: pip

      - name: pip cache
        uses: actions/cache@v2
        with:
          path: ${{ steps.pip.outputs.pip-cache-dir }}
          key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements-*.txt') }}
          restore-keys: |
            ${{ runner.os }}-pip-

      - name: Setup sentry env
        uses: ./.github/actions/setup-sentry
        id: setup

      - name: Check if a migration is required
        env:
          SENTRY_LOG_LEVEL: ERROR
          PGPASSWORD: postgres
        run: |
          # Below will exit with non-zero status if model changes are missing migrations
          sentry django makemigrations -n ci_test --check --dry-run --no-input || (echo '::error::Error: Migration required -- to generate a migration, run `sentry django makemigrations -n <some_name>`' && exit 1)