name: C/Fortran - Style

on:
  push:

jobs:
  test:
    strategy:
      matrix:
        os: [ubuntu-latest]
        compiler: [clang]

    runs-on: ${{ matrix.os }}

    steps:
    - name: Environment setup
      uses: actions/checkout@v2
    - name: Install astyle
      run: sudo apt-get install astyle
    - name: C style
      env:
        CC: ${{ matrix.compiler }}
        FC: gfortran-9
      run: |
        make info
        make style-c -j2 && git diff --exit-code