name: Shell Format & Lint

on:
  push:
    branches: [main]
    paths:
      - '**/*.sh'
      - mole
  pull_request:
    paths:
      - '**/*.sh'
      - mole

jobs:
  format-lint:
    runs-on: macos-latest

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

      - name: Install shfmt and shellcheck
        run: brew install shfmt shellcheck

      - name: Run shfmt in diff mode
        run: |
          set -euo pipefail
          files=()
          while IFS= read -r -d '' file; do
            files+=("$file")
          done < <(find . -type f \( -name '*.sh' -o -name 'mole' \) \
                                   ! -path './.git/*' ! -path './tests/tmp-*' -print0)
          if (( ${#files[@]} == 0 )); then
            echo "No shell files found; skipping shfmt"
            exit 0
          fi
          shfmt -i 4 -ci -sr -d "${files[@]}"

      - name: Run shellcheck
        run: |
          set -euo pipefail
          files=()
          while IFS= read -r -d '' file; do
            files+=("$file")
          done < <(find . -type f \( -name '*.sh' -o -name 'mole' \) \
                                   ! -path './.git/*' ! -path './tests/tmp-*' -print0)
          if (( ${#files[@]} == 0 )); then
            echo "No shell files found; skipping shellcheck"
            exit 0
          fi
          shellcheck --rcfile .shellcheckrc "${files[@]}"