name: ShellCheck
on:
  push:
    tags:
      - v*
    branches:
      - master
      - release-*
  pull_request:
    branches:
      - master
      - release-*

# cancel the in-progress workflow when PR is refreshed.
concurrency:
  group: ${{ github.workflow }}-${{ github.event_name == 'pull_request' && github.head_ref || github.sha }}
  cancel-in-progress: true

permissions:
  contents: read

jobs:
  shellcheck:
    name: Shellcheck
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
      - name: Lint shell scripts
        run: make lint.shell