# This workflow will:
#
#   * install Python dependencies
#   * lint with a single version of Python
#
# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

name: Push-Checks

on:
  push:
    branches: [ develop ]

jobs:
  build:

    runs-on: ubuntu-22.04

    steps:
    - uses: actions/checkout@v3
      with:
        fetch-depth: 0
    - name: Set up Python
      uses: actions/setup-python@v4
      with:
        python-version-file: '.python-version'
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install wheel flake8 pytest
        if [ -f requirements-dev.txt ]; then pip install -r requirements-dev.txt; fi
    
    - name: Setup flake8 annotations
      uses: rbialon/flake8-annotations@v1
    
    - name: Lint with flake8
      env:
        ROOT_SHA: ${{github.base_ref}}
      run: |
        DATA=$(jq --raw-output .before $GITHUB_EVENT_PATH)

        echo "DATA: ${DATA}"
        #######################################################################
        # stop the build if there are Python syntax errors or undefined names, ignore existing 
        #######################################################################
        # We need to get just the *filenames* of only *python* files changed.
        # Using various -z/-Z/-0 to utilise NUL-terminated strings.
        git diff --name-only --diff-filter=d -z "$DATA" | \
          grep -E -z -Z '\.py$' | \
          xargs -0 flake8 --count --select=E9,F63,F7,F82 --show-source --statistics
        #######################################################################
          
        #######################################################################
        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
        #######################################################################
        git diff --name-only --diff-filter=d -z "$DATA" | \
          grep -E -z -Z '\.py$' | \
          xargs -0 flake8 . --count --statistics
        #######################################################################
