name: ShellCheck

on:
  push:
  pull_request:

jobs:
  lint:
    runs-on: ubuntu-latest
    steps:
      - name: Check out the repo
        uses: actions/checkout@v4

      - name: Install ShellCheck
        run: |
          if ! command -v shellcheck >/dev/null; then
            SUDO=""
            command -v sudo >/dev/null && SUDO=sudo
            $SUDO apt-get update -qq
            $SUDO apt-get install -y -qq shellcheck
          fi
          shellcheck --version

      - name: Syntax check
        run: |
          for f in *.sh; do
            echo "bash -n $f"
            bash -n "$f"
          done

      - name: ShellCheck
        run: shellcheck --severity=warning *.sh