name: Shell Script Linter

permissions:
  contents: read

on:
  push:
    branches: [ "main", "test" ]
  pull_request:
    branches: [ "main" ]

jobs:
  shellcheck:
    name: Shellcheck
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Install ShellCheck
        run: sudo apt-get update && sudo apt-get install -y shellcheck
      - name: Run Shellcheck (Show All Issues & Fail on Errors)
        run: |
          set -o pipefail

          echo "--- Checking for all warnings and style issues ---"
          shellcheck -f gcc ./du_setup.sh | while IFS= read -r line; do
            file=$(echo "$line" | cut -d: -f1)
            line_no=$(echo "$line" | cut -d: -f2)
            message=$(echo "$line" | cut -d: -f4-)
            echo "::warning file=$file,line=$line_no::$message"
          done || true

          echo "--- Checking for critical errors ---"
          shellcheck --severity=error ./du_setup.sh