# Copyright 2019 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

name: Lint

on: [pull_request]

jobs:
  bazel_to_cmake:
    runs-on: ubuntu-18.04
    steps:
      - name: Checking out repository
        uses: actions/checkout@v2
      - name: Running bazel_to_cmake
        run: ./build_tools/bazel_to_cmake/bazel_to_cmake.py --verbosity=2
      - name: Checking Diff
        run: git diff --exit-code

  buildifier:
    runs-on: ubuntu-18.04
    steps:
      - name: Checking out repository
        uses: actions/checkout@v2
      - name: Running Buildifier
        # TODO(gcmn): Look into only running on changed files.
        uses: thompsonja/bazel-buildifier@v0.2.1
        with:
          excludes: "*/third_party/*"
          # For compatibility with Google's internal source repository, we still
          # use this.
          warnings: "-native-cc"

  yapf:
    runs-on: ubuntu-18.04
    env:
      BASE_REF: ${{ github.base_ref }}
    steps:
      - name: Checking out repository
        uses: actions/checkout@v2
      - name: Setting up python
        uses: actions/setup-python@v2
      - name: Fetching Base Branch
        # We have to explicitly fetch the base branch as well
        run: git fetch --no-tags --prune --depth=1 origin "${BASE_REF?}:${BASE_REF?}"
      - name: Install yapf
        run: python3 -m pip install yapf
      - name: Run format_diff.py with yapf
        run: |
          git diff -U0 "${BASE_REF?}" | python3 third_party/format_diff/format_diff.py yapf -i
          git diff --exit-code
      - name: Instructions for fixing the above linting errors
        if: ${{ failure() }}
        run: |
          printf "You can fix the lint errors above by running\n"
          printf "  git diff -U0 "${BASE_REF?}" | python3 third_party/format_diff/format_diff.py yapf -i\n"

  pytype:
    runs-on: ubuntu-18.04
    env:
      BASE_REF: ${{ github.base_ref }}
    steps:
      - name: Checking out repository
        uses: actions/checkout@v2
      - name: Setting up python
        uses: actions/setup-python@v2
        with:
          # Pytype does not support python3.9, which this action defaults to.
          python-version: '3.8'
      - name: Fetching Base Branch
        # We have to explicitly fetch the base branch as well
        run: git fetch --no-tags --prune --depth=1 origin "${BASE_REF?}:${BASE_REF?}"
      - name: Install pytype
        run: python3 -m pip install pytype
      - name: Run pytype on changed files
        run: ./build_tools/pytype/check_diff.sh "${BASE_REF?}"

  clang-format:
    runs-on: ubuntu-18.04
    env:
      BASE_REF: ${{ github.base_ref }}
    steps:
      - name: Installing dependencies
        run: |
          sudo apt-get update -qq
          sudo DEBIAN_FRONTEND=noninteractive apt-get install -qq -y --no-install-recommends clang-format-9
          wget https://raw.githubusercontent.com/llvm-mirror/clang/master/tools/clang-format/git-clang-format -O /tmp/git-clang-format
          chmod +x /tmp/git-clang-format
      - name: Checking out repository
        uses: actions/checkout@v2
      - name: Fetching Base Branch
        # We have to explicitly fetch the base branch as well
        run: git fetch --no-tags --prune --depth=1 origin "${BASE_REF?}:${BASE_REF?}"
      - name: Running clang-format on changed source files
        run: |
          /tmp/git-clang-format "${BASE_REF?}" --binary=clang-format-9 --style=file
          git diff --exit-code

  submodules:
    runs-on: ubuntu-18.04
    steps:
      - name: Checking out repository
        uses: actions/checkout@v2
      - name: Checking submodules
        run: ./scripts/git/submodule_versions.py check

  tabs:
    runs-on: ubuntu-18.04
    env:
      BASE_REF: ${{ github.base_ref }}
    steps:
      - name: Checking out repository
        uses: actions/checkout@v2
      - name: Fetching Base Branch
        # We have to explicitly fetch the base branch as well
        run: git fetch --no-tags --prune --depth=1 origin "${BASE_REF?}:${BASE_REF?}"
      - name: Checking tabs
        run: ./scripts/check_tabs.sh "${BASE_REF?}"

  yamllint:
    runs-on: ubuntu-18.04
    steps:
      - uses: actions/checkout@v2
      - name: yaml-lint
        uses: ibiqlik/action-yamllint@v1
        with:
          strict: true