rustfmt.yml

name: Rustfmt

# Runs `cargo fmt` whenever code is pushed or pr'd into master. 

on: 
  push:
    branches: 
      - master
  pull_request:
    branches:
      - master
    types: 
      - closed

jobs:
  format:
    name: Rustfmt
    runs-on: ubuntu-latest
    
    steps:
      - uses: actions/checkout@v2
      - uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: nightly
          override: true
          components: rustfmt
      - run: rustup component add rustfmt
      - uses: actions-rs/cargo@v1
        with:
          command: fmt
          args: --all
      - name: Commit files # only runs if something actually changed
        run: |
          if [[ -n "$(git status -s)" ]]; then
            git config --local user.email "action@github.com"
            git config --local user.name "GitHub Action"
            git commit -m "CI: Automatic Rustfmt" -a
          fi
      - name: Push changes
        uses: ad-m/github-push-action@master
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}