code_style_check.yml

name: Code style check

on:
  workflow_call:

permissions: {}

jobs:
  style:
    name: Code style check
    runs-on: ubuntu-latest
    timeout-minutes: 10
    defaults:
      run:
        shell: bash
    steps:
    - uses: actions/checkout@v6
      with:
        fetch-depth: 50
    - name: Install shellcheck
      run: |
        sudo apt-get -y update
        sudo apt-get -y install shellcheck
    - name: Setup clang-format
      run: |
        sudo update-alternatives --install /usr/bin/clang-format clang-format /usr/bin/clang-format-17 100
        sudo update-alternatives --install /usr/bin/clang-format-diff clang-format-diff /usr/bin/clang-format-diff-17 100
    - name: Check code format
      run: |
        FILES_TO_CHECK=$(git diff --name-only HEAD^ | (grep -E ".*\.(c|h)$" || true))
        if [ -z "$FILES_TO_CHECK" ]; then
          echo "There is no source code to check the formatting."
          exit 0
        fi
        if FORMAT_DIFF=$(git diff -U0 HEAD^ -- $FILES_TO_CHECK | clang-format-diff -p1 -style=file) && [ -z "$FORMAT_DIFF" ]; then
          echo "All the source code in the PR is formatted correctly."
          exit 0
        else
          echo "Formatting errors found!"
          echo "$FORMAT_DIFF"
          exit 1
        fi
    - name: Check format of shell scripts
      run: |
        shellcheck tests/*
    - name: Check format of markdown files
      uses: DavidAnson/markdownlint-cli2-action@v22