# Copyright      2021  Fangjun Kuang (csukuangfj@gmail.com)

# See ../../LICENSE for clarification regarding multiple authors
#
# 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
#
#     http://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: style_check

on:
  push:
    branches:
      - master
  pull_request:
    branches:
      - master

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

jobs:
  style_check:
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-latest]
        python-version: [3.8]
      fail-fast: false

    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0

      - name: Setup Python ${{ matrix.python-version }}
        uses: actions/setup-python@v1
        with:
          python-version: ${{ matrix.python-version }}

      - name: Install Python dependencies
        run: |
          python3 -m pip install --upgrade pip black==22.3.0 flake8==5.0.4 click==8.1.0 isort==5.10.1
          # Click issue fixed in https://github.com/psf/black/pull/2966

      - name: Run flake8
        shell: bash
        working-directory: ${{github.workspace}}
        run: |
          # stop the build if there are Python syntax errors or undefined names
          flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
          # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
          flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 \
            --statistics --extend-ignore=E203,E266,E501,F401,E402,F403,F841,W503

      - name: Run black
        shell: bash
        working-directory: ${{github.workspace}}
        run: |
          black --check --diff .
      
      - name: Run isort
        shell: bash
        working-directory: ${{github.workspace}}
        run: |
          isort --check --diff .