# NOTE: Everything test in this file should be in `tools/test-all`.  If there's a
# reason not to run it there, it should be there as a comment
# explaining why.

name: Zulip CI

on:
  push:
    branches: ["*.x", chat.zulip.org, main]
    tags: ["*"]
  pull_request:
  workflow_dispatch:

concurrency:
  group: "${{ github.workflow }}-${{ github.head_ref || github.run_id }}"
  cancel-in-progress: true

defaults:
  run:
    shell: bash

permissions:
  contents: read

jobs:
  tests:
    strategy:
      fail-fast: false
      matrix:
        include_documentation_tests: [false]
        include_frontend_tests: [false]
        include:
          # Base images are built using `tools/ci/Dockerfile.prod.template`.
          # The comments at the top explain how to build and upload these images.
          # Ubuntu 20.04 ships with Python 3.8.10.
          - docker_image: zulip/ci:focal
            name: Ubuntu 20.04 (Python 3.8, backend + frontend)
            os: focal
            include_frontend_tests: true
          # Debian 11 ships with Python 3.9.2.
          - docker_image: zulip/ci:bullseye
            name: Debian 11 (Python 3.9, backend + documentation)
            os: bullseye
            include_documentation_tests: true
          # Ubuntu 22.04 ships with Python 3.10.4.
          - docker_image: zulip/ci:jammy
            name: Ubuntu 22.04 (Python 3.10, backend)
            os: jammy

    runs-on: ubuntu-latest
    name: ${{ matrix.name }}
    container: ${{ matrix.docker_image }}
    env:
      # GitHub Actions sets HOME to /github/home which causes
      # problem later in provision and frontend test that runs
      # tools/setup/postgresql-init-dev-db because of the .pgpass
      # location. PostgreSQL (psql) expects .pgpass to be at
      # /home/github/.pgpass and setting home to `/home/github/`
      # ensures it written there because we write it to ~/.pgpass.
      HOME: /home/github/

    steps:
      - uses: actions/checkout@v3

      - name: Create cache directories
        run: |
          dirs=(/srv/zulip-{npm,venv,emoji}-cache)
          sudo mkdir -p "${dirs[@]}"
          sudo chown -R github "${dirs[@]}"

      - name: Restore node_modules cache
        uses: actions/cache@v3
        with:
          path: /srv/zulip-npm-cache
          key: v1-yarn-deps-${{ matrix.os }}-${{ hashFiles('package.json', 'yarn.lock') }}
          restore-keys: v1-yarn-deps-${{ matrix.os }}

      - name: Restore python cache
        uses: actions/cache@v3
        with:
          path: /srv/zulip-venv-cache
          key: v1-venv-${{ matrix.os }}-${{ hashFiles('requirements/dev.txt') }}
          restore-keys: v1-venv-${{ matrix.os }}

      - name: Restore emoji cache
        uses: actions/cache@v3
        with:
          path: /srv/zulip-emoji-cache
          key: v1-emoji-${{ matrix.os }}-${{ hashFiles('tools/setup/emoji/emoji_map.json', 'tools/setup/emoji/build_emoji', 'tools/setup/emoji/emoji_setup_utils.py', 'tools/setup/emoji/emoji_names.py', 'package.json') }}
          restore-keys: v1-emoji-${{ matrix.os }}

      - name: Install dependencies
        run: |
          # This is the main setup job for the test suite
          ./tools/ci/setup-backend --skip-dev-db-build

          # Cleaning caches is mostly unnecessary in GitHub Actions, because
          # most builds don't get to write to the cache.
          # scripts/lib/clean_unused_caches.py --verbose --threshold 0

      - name: Run tools test
        run: |
          source tools/ci/activate-venv
          ./tools/test-tools

      - name: Run Codespell lint
        run: |
          source tools/ci/activate-venv
          ./tools/run-codespell

      - name: Run backend lint
        run: |
          source tools/ci/activate-venv
          echo "Test suite is running under $(python --version)."
          ./tools/lint --groups=backend --skip=gitlint,mypy # gitlint disabled because flaky

      - name: Run frontend lint
        if: ${{ matrix.include_frontend_tests }}
        run: |
          source tools/ci/activate-venv
          ./tools/lint --groups=frontend --skip=gitlint # gitlint disabled because flaky

      - name: Run backend tests
        run: |
          source tools/ci/activate-venv
          ./tools/test-backend --coverage --include-webhooks --no-cov-cleanup --ban-console-output

      - name: Run mypy
        run: |
          source tools/ci/activate-venv
          # We run mypy after the backend tests so we get output from the
          # backend tests, which tend to uncover more serious problems, first.
          ./tools/run-mypy --version
          ./tools/run-mypy

      - name: Run miscellaneous tests
        run: |
          source tools/ci/activate-venv

          # Currently our compiled requirements files will differ for different
          # Python versions, so we will run test-locked-requirements only on the
          # platform with the oldest one.
          # ./tools/test-locked-requirements
          # ./tools/test-run-dev  # https://github.com/zulip/zulip/pull/14233
          #
          # This test has been persistently flaky at like 1% frequency, is slow,
          # and is for a very specific single feature, so we don't run it by default:
          # ./tools/test-queue-worker-reload

          ./tools/test-migrations
          ./tools/setup/optimize-svg --check
          ./tools/setup/generate_integration_bots_avatars.py --check-missing

          # Ban check-database-compatibility.py from transitively
          # relying on static/generated, because it might not be
          # up-to-date at that point in upgrade-zulip-stage-2.
          chmod 000 static/generated
          ./scripts/lib/check-database-compatibility.py
          chmod 755 static/generated

      - name: Run documentation and api tests
        if: ${{ matrix.include_documentation_tests }}
        run: |
          source tools/ci/activate-venv
          # In CI, we only test links we control in test-documentation to avoid flakes
          ./tools/test-documentation --skip-external-links
          ./tools/test-help-documentation --skip-external-links
          ./tools/test-api

      - name: Run node tests
        if: ${{ matrix.include_frontend_tests }}
        run: |
          source tools/ci/activate-venv
          # Run the node tests first, since they're fast and deterministic
          ./tools/test-js-with-node --coverage --parallel=1

      - name: Check schemas
        if: ${{ matrix.include_frontend_tests }}
        run: |
          source tools/ci/activate-venv
          # Check that various schemas are consistent. (is fast)
          ./tools/check-schemas

      - name: Check capitalization of strings
        if: ${{ matrix.include_frontend_tests }}
        run: |
          source tools/ci/activate-venv
          ./manage.py makemessages --locale en
          PYTHONWARNINGS=ignore ./tools/check-capitalization --no-generate
          PYTHONWARNINGS=ignore ./tools/check-frontend-i18n --no-generate

      - name: Run puppeteer tests
        if: ${{ matrix.include_frontend_tests }}
        run: |
          source tools/ci/activate-venv
          ./tools/test-js-with-puppeteer

      - name: Check for untracked files
        run: |
          source tools/ci/activate-venv
          # This final check looks for untracked files that may have been
          # created by test-backend or provision.
          untracked="$(git ls-files --exclude-standard --others)"
          if [ -n "$untracked" ]; then
              printf >&2 "Error: untracked files:\n%s\n" "$untracked"
              exit 1
          fi

      - name: Test locked requirements
        if: ${{ matrix.os == 'focal' }}
        run: |
          . /srv/zulip-py3-venv/bin/activate && \
          ./tools/test-locked-requirements

      - name: Upload coverage reports

        # Only upload coverage when both frontend and backend
        # tests are run.
        if: ${{ matrix.include_frontend_tests }}
        uses: codecov/codecov-action@v3
        with:
          files: var/coverage.xml,var/node-coverage/lcov.info

      - name: Store Puppeteer artifacts
        # Upload these on failure, as well
        if: ${{ always() && matrix.include_frontend_tests }}
        uses: actions/upload-artifact@v3
        with:
          name: puppeteer
          path: ./var/puppeteer
          retention-days: 60

      - name: Check development database build
        run: ./tools/ci/setup-backend

      - name: Report status
        if: failure()
        env:
          ZULIP_BOT_KEY: ${{ secrets.ZULIP_BOT_KEY }}
        run: tools/ci/send-failure-message