lint.yml

# Copyright 2021 ETH Zurich and University of Bologna.
# Licensed under the Apache License, Version 2.0, see LICENSE for details.
# SPDX-License-Identifier: Apache-2.0

# Lint the design
name: lint
on: [push, pull_request]

jobs:
  #################
  # Check License #
  #################
  check-license:
    runs-on: ubuntu-20.04
    steps:
    - uses: actions/checkout@v3
    - name: Install Python requirements
      run: pip install -r python-requirements.txt
    - name: Check license
      run: python scripts/license-checker.py --config scripts/license-checker.hjson

  ######################
  # Clang-Format Check #
  ######################
  # Check C/C++ files for correct formatting.
  clangfmt:
    name: C/C++ Sources
    runs-on: ubuntu-20.04
    steps:
    - uses: actions/checkout@v3
    - uses: DoozyX/clang-format-lint-action@v0.14
      with:
        clangFormatVersion: 14

  ########################
  # Check Python Sources #
  ########################
  python:
    name: Python Sources
    runs-on: ubuntu-20.04
    steps:
    - uses: actions/checkout@v3
    - name: Install Python requirements
      run: pip install flake8
    # Check that all python sources conform to the `pep8` standard
    - name: Check Python sources
      run: |
        flake8

  #########################
  # Check Trailing Spaces #
  #########################
  check-trailing-whitespaces:
    runs-on: ubuntu-20.04
    steps:
    - uses: actions/checkout@v3
      with:
        fetch-depth: 0
    - name: Determine base commit
      run: |
        if [[ -n $GITHUB_BASE_REF ]]; then
          # Make sure we have the latest version of the target branch
          git fetch origin $GITHUB_BASE_REF
          echo "base=origin/$GITHUB_BASE_REF" >> $GITHUB_ENV
        else
          echo "base=HEAD~1" >> $GITHUB_ENV
        fi
    - name: Check for trailing whitespaces and tabs
      run: |
        git diff --check $base HEAD --          \
            ':(exclude)**.def'                  \
            ':(exclude)**.patch'                \
            ':(exclude)toolchain/**'            \
            ':(exclude)software/riscv-tests/**'