check_format.yml

---
name: check_format

# yamllint disable-line rule:truthy
on:
  workflow_dispatch:
  push:
    branches:
      - main
  pull_request:

jobs:
  check_format:
    name: Check format
    runs-on: ubuntu-latest
    steps:
      - uses: julia-actions/setup-julia@v1
        with:
          version: 1.9
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Install JuliaFormatter
        run: |
          julia  -e 'using Pkg; Pkg.add(PackageSpec(name="JuliaFormatter"))'

      - name: Format code
        run: |
          git clean -f -x -d
          julia  -e 'using JuliaFormatter; format(".", verbose=true)'

      - name: Fail if needs reformatting
        run: |
          if [[ $(git status --porcelain) ]]; then
              echo "please reformat these files:"
              git status --porcelain=v1
              exit 1
          fi
...