name: Shellcheck
on:
  push:
    branches:
      - main
  pull_request:

# Abort runs of *this* workflow, if a new commit with the same ref is pushed.
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}

jobs:
  shellcheck:
    name: Shellcheck
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b
      - name: Run ShellCheck
        uses: ludeeus/action-shellcheck@94e0aab03ca135d11a35e5bfc14e6746dc56e7e9
        with:
          severity: error
          ignore_names: merge_config.sh