name: Bash Lint

on: [push, pull_request]

jobs:
  lint:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        os: [ubuntu-latest, ubuntu-20.04]

    steps:
    - name: Checkout repository
      uses: actions/checkout@v4

    - name: Cache ShellCheck
      id: cache-shellcheck
      uses: actions/cache@v4
      with:
        path: /usr/local/bin/shellcheck
        key: ${{ runner.os }}-shellcheck
        restore-keys: |
          ${{ runner.os }}-shellcheck

    - name: Install ShellCheck
      if: steps.cache-shellcheck.outputs.cache-hit != 'true'
      run: sudo apt-get install -y shellcheck

    - name: Lint Bash scripts
      run: |
        echo "Running ShellCheck..."
        find . -name "*.sh" -print0 | xargs -0 shellcheck -f gcc | tee shellcheck.log
        if grep -q "error:" shellcheck.log; then
          echo "Linting errors found!"
          exit 1
        else
          echo "No linting errors found."
        fi