shellcheck.yml

---
name: ShellCheck

'on':
  pull_request:
  push:
    branches: [main]

permissions:
  contents: read

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  shellcheck:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install ShellCheck
        run: |
          sudo apt-get update
          sudo apt-get install -y shellcheck
      - name: Run ShellCheck
        shell: bash
        run: |
          set -euo pipefail
          mapfile -t files < <(git ls-files -- \
            ':(glob)**/*.sh' \
            ':(glob)**/*.bash' \
            ':(glob)**/*.zsh' \
            ':(glob)**/.bashrc' \
            ':(glob)**/.bash_aliases' \
            ':(glob)**/.zshrc' \
            ':(glob)**/.profile')
          if [ "${#files[@]}" -eq 0 ]; then
            echo "No shell files to check."
            exit 0
          fi
          echo "Checking ${#files[@]} file(s) with ShellCheck..."
          shellcheck -S error -x "${files[@]}"