acme.sh/.github/workflows/shellcheck.yml

name: shellcheck
on: [push, pull_request]

jobs:
  formatCheck:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - name: Install Shellcheck
      run: sudo apt-get install -y shellcheck
    - name: DoShellcheck
      run: shellcheck -V  && shellcheck -e SC2181 **/*.sh && echo "shellcheck OK"
    - name: Install shfmt
      run: curl -sSL https://github.com/mvdan/sh/releases/download/v3.1.2/shfmt_v3.1.2_linux_amd64 -o ~/shfmt && chmod +x ~/shfmt
    - name: shfmt
      run: ~/shfmt -l -w -i 2 . ; git diff --exit-code && echo "shfmt OK"