name: Check formatting
on: 
  pull_request:
  push:
    branches:
      - master

# consider using docker: ocaml/opam2:4.06
# - sudo apt-get update && apt-get install -y m4
# - opam update && opam install reason
# - refmt # is new

jobs:
  # build:
  #   name: build project
  #   runs-on: ubuntu-latest
  #   steps:
  #     - uses: actions/checkout@master
  #       with:
  #         fetch-depth: 1
  #     - uses: actions/setup-node@v1
  #       with:
  #         node-version: '10.x'
  #     - run: npm install -g esy@latest
  #     - run: esy i
  #     - run: esy b
  #     - run: esy export-dependencies
  #     - run: tar -czf build.tar.gz _export
  #     - uses: actions/upload-artifact@master
  #       with:
  #         name: cache-linux-build-dependencies
  #         path: build.tar.gz

  test_refmt:
    name: run refmt
    runs-on: ubuntu-latest
    # needs: [build]
    steps:
      - uses: actions/checkout@master
        with:
          fetch-depth: 1
      - uses: actions/setup-node@v1
        with:
          node-version: '10.x'
      # - run: npm install -g esy@latest
      # - uses: actions/download-artifact@master
      #   with:
      #     name: cache-linux-build-dependencies
      # - run: tar -xzf cache-linux-build-dependencies/build.tar.gz
      # - run: esy import-build _export/*
      # - run: esy i
      # - run: esy fmt
      - run: npm i -g esy@latest
      - run: esy @fmt i
      - run: esy @fmt refmt --in-place */*.re
      # - run: ./scripts/fmt_all.sh
      #   name: refmt all the files
      - run: |
          if [ -n "$(git status --porcelain)" ]; then
            echo "There are differences:"
            git status --porcelain
            echo "----"
            echo ""
            echo 'Please run `esy fmt` locally to fix the issues.'
            exit 1
          fi
        name: "Throw if something changed"