name: backend

on:
  push:
    branches:
      - master
  pull_request:

# Cancel in progress workflows on pull_requests.
# https://docs.github.com/en/actions/using-jobs/using-concurrency#example-using-a-fallback-value
concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

# hack for https://github.com/actions/cache/issues/810#issuecomment-1222550359
env:
  SEGMENT_DOWNLOAD_TIMEOUT_MINS: 3

jobs:
  files-changed:
    name: detect what files changed
    runs-on: ubuntu-20.04
    timeout-minutes: 3
    # Map a step output to a job output
    outputs:
      api_docs: ${{ steps.changes.outputs.api_docs }}
      backend: ${{ steps.changes.outputs.backend_all }}
      backend_dependencies: ${{ steps.changes.outputs.backend_dependencies }}
      backend_any_type: ${{ steps.changes.outputs.backend_any_type }}
      migration_lockfile: ${{ steps.changes.outputs.migration_lockfile }}
    steps:
      - uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v3.1.0

      - name: Check for backend file changes
        uses: getsentry/paths-filter@4512585405083f25c027a35db413c2b3b9006d50 # v2.11.1
        id: changes
        with:
          token: ${{ github.token }}
          filters: .github/file-filters.yml

  api-docs:
    if: needs.files-changed.outputs.api_docs == 'true'
    needs: files-changed
    name: api docs test
    runs-on: ubuntu-20.04
    steps:
      - uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v3.1.0

      - uses: getsentry/action-setup-volta@c52be2ea13cfdc084edb806e81958c13e445941e # v1.2.0

      - name: Setup sentry python env
        uses: ./.github/actions/setup-sentry
        id: setup
        with:
          snuba: true

      - name: Run API docs tests
        # install ts-node for ts build scripts to execute properly without potentially installing
        # conflicting deps when running scripts locally
        # see: https://github.com/getsentry/sentry/pull/32328/files
        run: |
          yarn add ts-node && make test-api-docs

  backend-test:
    if: needs.files-changed.outputs.backend == 'true'
    needs: files-changed
    name: backend test
    runs-on: ubuntu-20.04
    timeout-minutes: 60
    strategy:
      # This helps not having to run multiple jobs because one fails, thus, reducing resource usage
      # and reducing the risk that one of many runs would turn red again (read: intermittent tests)
      fail-fast: false
      matrix:
        # XXX: When updating this, make sure you also update MATRIX_INSTANCE_TOTAL.
        instance: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
        pg-version: ['14']

    env:
      # XXX: `MATRIX_INSTANCE_TOTAL` must be hardcoded to the length of `strategy.matrix.instance`.
      # If this increases, make sure to also increase `flags.backend.after_n_builds` in `codecov.yml`.
      MATRIX_INSTANCE_TOTAL: 11

    steps:
      - uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v3.1.0
        with:
          # Avoid codecov error message related to SHA resolution:
          # https://github.com/codecov/codecov-bash/blob/7100762afbc822b91806a6574658129fe0d23a7d/codecov#L891
          fetch-depth: '2'

      - name: Setup sentry env
        uses: ./.github/actions/setup-sentry
        id: setup
        with:
          kafka: true
          snuba: true
          symbolicator: true
          # Right now, we run so few bigtable related tests that the
          # overhead of running bigtable in all backend tests
          # is way smaller than the time it would take to run in its own job.
          bigtable: true
          pg-version: ${{ matrix.pg-version }}

      - name: Run backend test (${{ steps.setup.outputs.matrix-instance-number }} of ${{ steps.setup.outputs.matrix-instance-total }})
        run: |
          make test-python-ci

      # Upload coverage data even if running the tests step fails since
      # it reduces large coverage fluctuations
      - name: Handle artifacts
        if: ${{ always() }}
        uses: ./.github/actions/artifacts
        with:
          token: ${{ secrets.CODECOV_TOKEN }}

  backend-migration-tests:
    if: needs.files-changed.outputs.backend == 'true'
    needs: files-changed
    name: backend migration tests
    runs-on: ubuntu-20.04
    timeout-minutes: 30
    strategy:
      matrix:
        pg-version: ['14']

    steps:
      - uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v3.1.0
        with:
          # Avoid codecov error message related to SHA resolution:
          # https://github.com/codecov/codecov-bash/blob/7100762afbc822b91806a6574658129fe0d23a7d/codecov#L891
          fetch-depth: '2'

      - name: Setup sentry env
        uses: ./.github/actions/setup-sentry
        id: setup
        with:
          snuba: true
          pg-version: ${{ matrix.pg-version }}

      - name: run tests
        run: |
          MIGRATIONS_TEST_MIGRATE=1 PYTEST_ADDOPTS="$PYTEST_ADDOPTS -m migrations" make test-python-ci

      # Upload coverage data even if running the tests step fails since
      # it reduces large coverage fluctuations
      - name: Handle artifacts
        if: ${{ always() }}
        uses: ./.github/actions/artifacts
        with:
          token: ${{ secrets.CODECOV_TOKEN }}

  cli:
    if: needs.files-changed.outputs.backend == 'true'
    needs: files-changed
    name: cli test
    runs-on: ubuntu-20.04
    timeout-minutes: 10
    strategy:
      matrix:
        pg-version: ['14']
    steps:
      - uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v3.1.0

      - name: Setup sentry env
        uses: ./.github/actions/setup-sentry
        id: setup
        with:
          pg-version: ${{ matrix.pg-version }}

      - name: Run test
        run: |
          make test-cli

      # Upload coverage data even if running the tests step fails since
      # it reduces large coverage fluctuations
      - name: Handle artifacts
        if: ${{ always() }}
        uses: ./.github/actions/artifacts
        with:
          token: ${{ secrets.CODECOV_TOKEN }}

  requirements:
    if: needs.files-changed.outputs.backend_dependencies == 'true'
    needs: files-changed
    name: requirements check
    runs-on: ubuntu-20.04
    timeout-minutes: 3
    steps:
      - uses: getsentry/action-github-app-token@97c9e23528286821f97fba885c1b1123284b29cc # v2.0.0
        id: token
        continue-on-error: true
        with:
          app_id: ${{ vars.SENTRY_INTERNAL_APP_ID }}
          private_key: ${{ secrets.SENTRY_INTERNAL_APP_PRIVATE_KEY }}
      - uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v3.1.0
      - uses: getsentry/action-setup-venv@9e3bbae3836b1b6f129955bf55a19e1d99a61c67 # v1.0.5
        with:
          python-version: 3.8.18
          cache-dependency-path: requirements-dev-frozen.txt
          install-cmd: python3 -m tools.hack_pip && pip install -q --constraint requirements-dev-frozen.txt pip-tools
      - name: check requirements
        run: |
          python -S -m tools.freeze_requirements
          if ! git diff --exit-code; then
            echo $'\n\nrun `make freeze-requirements` locally to update requirements'
            exit 1
          fi
      - name: apply any requirements changes
        if: steps.token.outcome == 'success' && github.ref != 'refs/heads/master' && always()
        uses: getsentry/action-github-commit@748c31dd78cffe76f51bef49a0be856b6effeda7 # v1.1.0
        with:
          github-token: ${{ steps.token.outputs.token }}
          message: ':snowflake: re-freeze requirements'

  migration:
    if: needs.files-changed.outputs.migration_lockfile == 'true'
    needs: files-changed
    name: check migration
    runs-on: ubuntu-20.04
    strategy:
      matrix:
        pg-version: ['14']

    steps:
      - name: Checkout sentry
        uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v3.1.0

      - name: Setup sentry env
        uses: ./.github/actions/setup-sentry
        id: setup
        with:
          pg-version: ${{ matrix.pg-version }}

      - name: Migration & lockfile checks
        env:
          SENTRY_LOG_LEVEL: ERROR
          PGPASSWORD: postgres
        run: |
          ./.github/workflows/scripts/migration-check.sh

  monolith-dbs:
    if: needs.files-changed.outputs.backend == 'true'
    needs: files-changed
    name: monolith-dbs test
    runs-on: ubuntu-20.04
    timeout-minutes: 20
    steps:
      - uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v3.1.0
        with:
          # Avoid codecov error message related to SHA resolution:
          # https://github.com/codecov/codecov-bash/blob/7100762afbc822b91806a6574658129fe0d23a7d/codecov#L891
          fetch-depth: '2'

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

      - name: Run test
        run: |
          make test-monolith-dbs

      # Upload coverage data even if running the tests step fails since
      # it reduces large coverage fluctuations
      - name: Handle artifacts
        if: ${{ always() }}
        uses: ./.github/actions/artifacts
        with:
          token: ${{ secrets.CODECOV_TOKEN }}

  typing:
    if: needs.files-changed.outputs.backend == 'true'
    needs: files-changed
    name: backend typing
    runs-on: ubuntu-20.04
    timeout-minutes: 20
    steps:
      - uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v3.1.0

      - uses: getsentry/action-setup-venv@9e3bbae3836b1b6f129955bf55a19e1d99a61c67 # v1.0.5
        with:
          python-version: 3.8.18
          cache-dependency-path: requirements-dev-frozen.txt
          install-cmd: python3 -m tools.hack_pip && pip install -r requirements-dev-frozen.txt

      - name: setup sentry (lite)
        run: |
          python3 -m tools.fast_editable --path .
          sentry init

      - run: mypy
        id: run

      - uses: getsentry/action-github-app-token@97c9e23528286821f97fba885c1b1123284b29cc # v2.0.0
        id: token
        continue-on-error: true
        with:
          app_id: ${{ vars.SENTRY_INTERNAL_APP_ID }}
          private_key: ${{ secrets.SENTRY_INTERNAL_APP_PRIVATE_KEY }}

      # only if `mypy` succeeds should we try and trim the blocklist
      - run: python3 -m tools.mypy_helpers.make_module_ignores
        id: regen-blocklist

      - run: git diff --exit-code

      - run: |
          # mypy does not have granular codes so don't allow specific messages to regress
          ! grep "'Settings' object has no attribute" .artifacts/mypy-all
          ! grep 'Cannot override class variable' .artifacts/mypy-all
          ! grep 'Exception type must be derived from BaseException' .artifacts/mypy-all
          ! grep 'Incompatible types in "yield"' .artifacts/mypy-all
          ! grep 'does not explicitly export attribute' .artifacts/mypy-all

      - name: apply blocklist changes
        if: |
          steps.token.outcome == 'success' &&
          steps.run.outcome == 'success' &&
          steps.regen-blocklist.outcome == 'success' &&
          github.ref != 'refs/heads/master' &&
          always()
        uses: getsentry/action-github-commit@748c31dd78cffe76f51bef49a0be856b6effeda7 # v1.1.0
        with:
          github-token: ${{ steps.token.outputs.token }}
          message: ':knife: regenerate mypy module blocklist'

  # This check runs once all dependent jobs have passed
  # It symbolizes that all required Backend checks have succesfully passed (Or skipped)
  # This step is the only required backend check
  backend-required-check:
    needs:
      [
        api-docs,
        backend-test,
        backend-migration-tests,
        cli,
        files-changed,
        requirements,
        migration,
        monolith-dbs,
        typing,
      ]
    name: Backend
    # This is necessary since a failed/skipped dependent job would cause this job to be skipped
    if: always()
    runs-on: ubuntu-20.04
    steps:
      # If any jobs we depend on fail, we will fail since this is a required check
      # NOTE: A timeout is considered a failure
      - name: Check for failures
        if: contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled')
        run: |
          echo "One of the dependent jobs have failed. You may need to re-run it." && exit 1