name: Lint Shell

on:
  pull_request:
  push:
    branches:
      - main
      - master

jobs:
  shell-syntax:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Bash Syntax Check
        run: |
          set -euo pipefail
          mapfile -t files < <(git ls-files '*.sh')
          if [ "${#files[@]}" -eq 0 ]; then
            echo "No shell scripts found"
            exit 0
          fi
          for f in "${files[@]}"; do
            bash -n "$f"
          done

      - name: ShellCheck
        run: |
          set -euo pipefail
          sudo apt-get -qq install -y shellcheck
          mapfile -t files < <(git ls-files '*.sh')
          if [ "${#files[@]}" -eq 0 ]; then
            echo "No shell scripts found"
            exit 0
          fi
          shellcheck -x -S warning "${files[@]}"