name: Tests

on:
  push:
    branches: ["develop", "release-*"]
  pull_request:

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  check-sampleconfig:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: actions/setup-python@v2
      - run: pip install -e .
      - run: scripts-dev/generate_sample_config.sh --check
      - run: scripts-dev/config-lint.sh

  lint:
    # This does a vanilla `poetry install` - no extras. I'm slightly anxious
    # that we might skip some typechecks on code that uses extras. However,
    # I think the right way to fix this is to mark any extras needed for
    # typechecking as development dependencies. To detect this, we ought to
    # turn up mypy's strictness: disallow unknown imports and be accept fewer
    # uses of `Any`.
    uses: "matrix-org/backend-meta/.github/workflows/python-poetry-ci.yml@v1"

  lint-crlf:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Check line endings
        run: scripts-dev/check_line_terminators.sh

  lint-newsfile:
    if: ${{ github.base_ref == 'develop'  || contains(github.base_ref, 'release-') }}
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
        with:
          ref: ${{ github.event.pull_request.head.sha }}
          fetch-depth: 0
      - uses: actions/setup-python@v2
      - run: "pip install 'towncrier>=18.6.0rc1'"
      - run: scripts-dev/check-newsfragment.sh
        env:
          PULL_REQUEST_NUMBER: ${{ github.event.number }}

  # Dummy step to gate other tests on without repeating the whole list
  linting-done:
    if: ${{ !cancelled() }} # Run this even if prior jobs were skipped
    needs: [lint, lint-crlf, lint-newsfile, check-sampleconfig]
    runs-on: ubuntu-latest
    steps:
      - run: "true"

  trial:
    if: ${{ !cancelled() && !failure() }} # Allow previous steps to be skipped, but not fail
    needs: linting-done
    runs-on: ubuntu-latest
    strategy:
      matrix:
        python-version: ["3.7", "3.8", "3.9", "3.10"]
        database: ["sqlite"]
        toxenv: ["py"]
        include:
          # Newest Python without optional deps
          - python-version: "3.10"
            toxenv: "py-noextras"

          # Oldest Python with PostgreSQL
          - python-version: "3.7"
            database: "postgres"
            postgres-version: "10"
            toxenv: "py"

          # Newest Python with newest PostgreSQL
          - python-version: "3.10"
            database: "postgres"
            postgres-version: "14"
            toxenv: "py"

    steps:
      - uses: actions/checkout@v2
      - run: sudo apt-get -qq install xmlsec1
      - name: Set up PostgreSQL ${{ matrix.postgres-version }}
        if: ${{ matrix.postgres-version }}
        run: |
          docker run -d -p 5432:5432 \
            -e POSTGRES_PASSWORD=postgres \
            -e POSTGRES_INITDB_ARGS="--lc-collate C --lc-ctype C --encoding UTF8" \
            postgres:${{ matrix.postgres-version }}
      - uses: actions/setup-python@v2
        with:
          python-version: ${{ matrix.python-version }}
      - run: pip install tox
      - name: Await PostgreSQL
        if: ${{ matrix.postgres-version }}
        timeout-minutes: 2
        run: until pg_isready -h localhost; do sleep 1; done
      - run: tox -e ${{ matrix.toxenv }}
        env:
          TRIAL_FLAGS: "--jobs=2"
          SYNAPSE_POSTGRES: ${{ matrix.database == 'postgres' || '' }}
          SYNAPSE_POSTGRES_HOST: localhost
          SYNAPSE_POSTGRES_USER: postgres
          SYNAPSE_POSTGRES_PASSWORD: postgres
      - name: Dump logs
        # Logs are most useful when the command fails, always include them.
        if: ${{ always() }}
        # Note: Dumps to workflow logs instead of using actions/upload-artifact
        #       This keeps logs colocated with failing jobs
        #       It also ignores find's exit code; this is a best effort affair
        run: >-
          find _trial_temp -name '*.log'
          -exec echo "::group::{}" \;
          -exec cat {} \;
          -exec echo "::endgroup::" \;
          || true

  trial-olddeps:
    # Note: sqlite only; no postgres
    if: ${{ !cancelled() && !failure() }} # Allow previous steps to be skipped, but not fail
    needs: linting-done
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Test with old deps
        uses: docker://ubuntu:focal # For old python and sqlite
        # Note: focal seems to be using 3.8, but the oldest is 3.7?
        # See https://github.com/matrix-org/synapse/issues/12343
        with:
          workdir: /github/workspace
          entrypoint: .ci/scripts/test_old_deps.sh
      - name: Dump logs
        # Logs are most useful when the command fails, always include them.
        if: ${{ always() }}
        # Note: Dumps to workflow logs instead of using actions/upload-artifact
        #       This keeps logs colocated with failing jobs
        #       It also ignores find's exit code; this is a best effort affair
        run: >-
          find _trial_temp -name '*.log'
          -exec echo "::group::{}" \;
          -exec cat {} \;
          -exec echo "::endgroup::" \;
          || true

  trial-pypy:
    # Very slow; only run if the branch name includes 'pypy'
    if: ${{ contains(github.ref, 'pypy') && !failure() && !cancelled() }}
    needs: linting-done
    runs-on: ubuntu-latest
    strategy:
      matrix:
        python-version: ["pypy-3.7"]

    steps:
      - uses: actions/checkout@v2
      - run: sudo apt-get -qq install xmlsec1 libxml2-dev libxslt-dev
      - uses: actions/setup-python@v2
        with:
          python-version: ${{ matrix.python-version }}
      - run: pip install tox
      - run: tox -e py
        env:
          TRIAL_FLAGS: "--jobs=2"
      - name: Dump logs
        # Logs are most useful when the command fails, always include them.
        if: ${{ always() }}
        # Note: Dumps to workflow logs instead of using actions/upload-artifact
        #       This keeps logs colocated with failing jobs
        #       It also ignores find's exit code; this is a best effort affair
        run: >-
          find _trial_temp -name '*.log'
          -exec echo "::group::{}" \;
          -exec cat {} \;
          -exec echo "::endgroup::" \;
          || true

  sytest:
    if: ${{ !failure() && !cancelled() }}
    needs: linting-done
    runs-on: ubuntu-latest
    container:
      image: matrixdotorg/sytest-synapse:${{ matrix.sytest-tag }}
      volumes:
        - ${{ github.workspace }}:/src
      env:
        SYTEST_BRANCH: ${{ github.head_ref }}
        POSTGRES: ${{ matrix.postgres && 1}}
        MULTI_POSTGRES: ${{ (matrix.postgres == 'multi-postgres') && 1}}
        WORKERS: ${{ matrix.workers && 1 }}
        REDIS: ${{ matrix.redis && 1 }}
        BLACKLIST: ${{ matrix.workers && 'synapse-blacklist-with-workers' }}
        TOP: ${{ github.workspace }}

    strategy:
      fail-fast: false
      matrix:
        include:
          - sytest-tag: focal

          - sytest-tag: focal
            postgres: postgres

          - sytest-tag: testing
            postgres: postgres

          - sytest-tag: focal
            postgres: multi-postgres
            workers: workers

          - sytest-tag: buster
            postgres: multi-postgres
            workers: workers

          - sytest-tag: buster
            postgres: postgres
            workers: workers
            redis: redis

    steps:
      - uses: actions/checkout@v2
      - name: Prepare test blacklist
        run: cat sytest-blacklist .ci/worker-blacklist > synapse-blacklist-with-workers
      - name: Run SyTest
        run: /bootstrap.sh synapse
        working-directory: /src
      - name: Summarise results.tap
        if: ${{ always() }}
        run: /sytest/scripts/tap_to_gha.pl /logs/results.tap
      - name: Upload SyTest logs
        uses: actions/upload-artifact@v2
        if: ${{ always() }}
        with:
          name: Sytest Logs - ${{ job.status }} - (${{ join(matrix.*, ', ') }})
          path: |
            /logs/results.tap
            /logs/**/*.log*

  export-data:
    if: ${{ !failure() && !cancelled() }} # Allow previous steps to be skipped, but not fail
    needs: [linting-done, portdb]
    runs-on: ubuntu-latest
    env:
      TOP: ${{ github.workspace }}

    services:
      postgres:
        image: postgres
        ports:
          - 5432:5432
        env:
          POSTGRES_PASSWORD: "postgres"
          POSTGRES_INITDB_ARGS: "--lc-collate C --lc-ctype C --encoding UTF8"
        options: >-
          --health-cmd pg_isready
          --health-interval 10s
          --health-timeout 5s
          --health-retries 5

    steps:
      - uses: actions/checkout@v2
      - run: sudo apt-get -qq install xmlsec1
      - uses: matrix-org/setup-python-poetry@v1
        with:
          python-version: ${{ matrix.python-version }}
          extras: "postgres"
      - run: .ci/scripts/test_export_data_command.sh

  portdb:
    if: ${{ !failure() && !cancelled() }} # Allow previous steps to be skipped, but not fail
    needs: linting-done
    runs-on: ubuntu-latest
    env:
      TOP: ${{ github.workspace }}
    strategy:
      matrix:
        include:
          - python-version: "3.7"
            postgres-version: "10"

          - python-version: "3.10"
            postgres-version: "14"

    services:
      postgres:
        image: postgres:${{ matrix.postgres-version }}
        ports:
          - 5432:5432
        env:
          POSTGRES_PASSWORD: "postgres"
          POSTGRES_INITDB_ARGS: "--lc-collate C --lc-ctype C --encoding UTF8"
        options: >-
          --health-cmd pg_isready
          --health-interval 10s
          --health-timeout 5s
          --health-retries 5

    steps:
      - uses: actions/checkout@v2
      - run: sudo apt-get -qq install xmlsec1
      - uses: matrix-org/setup-python-poetry@v1
        with:
          python-version: ${{ matrix.python-version }}
          extras: "postgres"
      - run: .ci/scripts/test_synapse_port_db.sh

  complement:
    if: ${{ !failure() && !cancelled() }}
    needs: linting-done
    runs-on: ubuntu-latest

    steps:
      # The path is set via a file given by $GITHUB_PATH. We need both Go 1.17 and GOPATH on the path to run Complement.
      # See https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#adding-a-system-path
      - name: "Set Go Version"
        run: |
          # Add Go 1.17 to the PATH: see https://github.com/actions/virtual-environments/blob/main/images/linux/Ubuntu2004-Readme.md#environment-variables-2
          echo "$GOROOT_1_17_X64/bin" >> $GITHUB_PATH
          # Add the Go path to the PATH: We need this so we can call gotestfmt
          echo "~/go/bin" >> $GITHUB_PATH

      - name: "Install Complement Dependencies"
        run: |
          sudo apt-get update && sudo apt-get install -y libolm3 libolm-dev
          go get -v github.com/haveyoudebuggedit/gotestfmt/v2/cmd/gotestfmt@latest

      - name: Run actions/checkout@v2 for synapse
        uses: actions/checkout@v2
        with:
          path: synapse

      # Attempt to check out the same branch of Complement as the PR. If it
      # doesn't exist, fallback to HEAD.
      - name: Checkout complement
        shell: bash
        run: |
          mkdir -p complement
          # Attempt to use the version of complement which best matches the current
          # build. Depending on whether this is a PR or release, etc. we need to
          # use different fallbacks.
          #
          # 1. First check if there's a similarly named branch (GITHUB_HEAD_REF
          #    for pull requests, otherwise GITHUB_REF).
          # 2. Attempt to use the base branch, e.g. when merging into release-vX.Y
          #    (GITHUB_BASE_REF for pull requests).
          # 3. Use the default complement branch ("HEAD").
          for BRANCH_NAME in "$GITHUB_HEAD_REF" "$GITHUB_BASE_REF" "${GITHUB_REF#refs/heads/}" "HEAD"; do
            # Skip empty branch names and merge commits.
            if [[ -z "$BRANCH_NAME" || $BRANCH_NAME =~ ^refs/pull/.* ]]; then
              continue
            fi

            (wget -O - "https://github.com/matrix-org/complement/archive/$BRANCH_NAME.tar.gz" | tar -xz --strip-components=1 -C complement) && break
          done

      - run: |
          set -o pipefail
          COMPLEMENT_DIR=`pwd`/complement synapse/scripts-dev/complement.sh -json 2>&1 | gotestfmt
        shell: bash
        name: Run Complement Tests

  # a job which marks all the other jobs as complete, thus allowing PRs to be merged.
  tests-done:
    if: ${{ always() }}
    needs:
      - check-sampleconfig
      - lint
      - lint-crlf
      - lint-newsfile
      - trial
      - trial-olddeps
      - sytest
      - export-data
      - portdb
      - complement
    runs-on: ubuntu-latest
    steps:
      - uses: matrix-org/done-action@v2
        with:
          needs: ${{ toJSON(needs) }}

          # The newsfile lint may be skipped on non PR builds
          skippable:
            lint-newsfile