name: migrations
on:
  pull_request:
    paths:
      - 'src/sentry/migrations/*'

jobs:
    sql:
      name: Generate SQL
      runs-on: ubuntu-16.04

      env:
        PIP_DISABLE_PIP_VERSION_CHECK: on
        SENTRY_LIGHT_BUILD: 1
        SENTRY_SKIP_BACKEND_VALIDATION: 1
        MIGRATIONS_TEST_MIGRATE: 0

        # The hostname used to communicate with the PostgreSQL from sentry
        DATABASE_URL: postgresql://postgres:postgres@localhost/sentry

        # Use this to override the django version in the requirements file.
        DJANGO_VERSION: ">=1.11,<1.12"

      services:
        postgres:
          image: postgres:9.6
          env:
            POSTGRES_USER: postgres
            POSTGRES_PASSWORD: postgres
          ports:
            # Maps tcp port 5432 on service container to the host
            - 5432:5432
          # needed because the postgres container does not provide a healthcheck
          options: >-
            --health-cmd pg_isready
            --health-interval 10s
            --health-timeout 5s
            --health-retries 5

      steps:
        - name: Create placeholder comment
          uses: getsentry/action-migrations@v1.0.7
          with:
            run: placeholder
            githubToken: ${{ secrets.GITHUB_TOKEN }}

        # Checkout codebase
        - uses: actions/checkout@v1

        - name: Get changed migration files
          id: file
          run: |
            echo $(git diff --diff-filter=AM --name-only origin/master HEAD)
            echo "::set-output name=modified::$(git diff --diff-filter=AM --name-only origin/master HEAD | grep 'src/sentry/migrations/')"


        # Python
        #   Use `.python-version` to avoid duplication
        #   XXX: can't actually read from .python-version because GitHub Actions
        #   does not support our version (2.7.16)
        #
        #   XXX: Using `2.7` as GHA image only seems to keep one minor version around and will break
        #   CI if we pin it to a specific patch version.
        - name: Set up outputs
          id: config
          env:
            MATRIX_INSTANCE: ${{ matrix.instance }}
          run: |
            echo "::set-output name=python-version::2.7"

        # setup python
        - name: Set up Python ${{ steps.config.outputs.python-version }}
          uses: actions/setup-python@v1
          with:
            python-version: ${{ steps.config.outputs.python-version}}

        # setup pip
        - name: Install pip
          run: |
            pip install --no-cache-dir --upgrade "pip>=20.0.2"

        # pip cache
        - name: Get pip cache dir
          id: pip-cache
          run: |
            echo "::set-output name=dir::$(pip cache dir)"

        - name: pip cache
          uses: actions/cache@v1
          with:
            path: ${{ steps.pip-cache.outputs.dir }}
            key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements-*.txt') }}
            restore-keys: |
              ${{ runner.os }}-pip-

        - name: Install System Dependencies
          run: |
            sudo apt-get update
            sudo apt-get install libxmlsec1-dev libmaxminddb-dev

        - name: Install Python Dependencies
          env:
            PGPASSWORD: postgres
          run: |
            python setup.py install_egg_info
            pip install wheel # GitHub Actions does not have this installed by default (unlike Travis)
            pip install -U -e ".[dev]"
            psql -c 'create database sentry;' -h localhost -U postgres
            sentry init

        - name: Generate SQL for migration
          uses: getsentry/action-migrations@v1.0.7
          env:
            SENTRY_LOG_LEVEL: ERROR
            PGPASSWORD: postgres
          with:
            githubToken: ${{ secrets.GITHUB_TOKEN }}
            migration: ${{ steps.file.outputs.modified }}