dotnet-format for github actions (on push) - C#

main.yml

# This workflow ensures all code being pushed to your repo. is formatted
name: Auto-Format

# Controls when the action will run. 
on:
  push:
    branches: 
      - "**"

# A workflow run is made up of one or more jobs that can run sequentially or in parallel
jobs:
  dotnet-format:
    runs-on: ubuntu-latest
    steps:
      - name: Get Branch Info
        shell: bash
        run: echo "##[set-output name=ref;]$(echo ${GITHUB_REF#refs/heads/})"
        id: comment-branch

      - name: Checkout repo
        uses: actions/checkout@v2.3.2
        with:
          ref: ${{ steps.comment-branch.outputs.ref }}
          persist-credentials: false

      - name: Check latest commit message
        id: log
        run: echo "::set-output name=message::$(git log --no-merges -1 --oneline)"

      - name: Check Assets/Scripts folder existence
        id: check_folder
        uses: andstor/file-existence-action@v1.0.1
        with:
          files: "./Assets/Scripts/"

      - name: Install dotnet-format
        if: "!contains(steps.log.outputs.message, 'skip ci') && steps.check_folder.outputs.files_exists == 'true'"
        run: dotnet tool install -g dotnet-format

      - name: Check format
        if: "!contains(steps.log.outputs.message, 'skip ci') && steps.check_folder.outputs.files_exists == 'true'"
        id: check
        uses: brmenchl/dotnet-format@v1.0.2
        with:
          repo-token: ${{ secrets.GITHUB_TOKEN }}
          action: "check"
          folder: ./Assets/Scripts
          fail-fast: false

      - name: Run format
        if: steps.check.outputs.has-changes == 'true'
        uses: brmenchl/dotnet-format@v1.0.2
        with:
          repo-token: ${{ secrets.GITHUB_TOKEN }}
          action: "fix"
          folder: ./Assets/Scripts

      - name: Commit files
        if: steps.check.outputs.has-changes == 'true'
        run: |
          git config --local user.name "github-actions[bot]"
          git config --local user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git commit -a -m 'Automated dotnet-format update [skip ci]' -m 'Co-authored-by: ${{ github.event.pull_request.user.login }} <${{ github.event.pull_request.user.id }}+${{ github.event.pull_request.user.login }}@users.noreply.github.com>'
          
      - name: Push changes
        if: steps.check.outputs.has-changes == 'true'
        uses: ad-m/github-push-action@v0.6.0
        with:
          branch: ${{ steps.comment-branch.outputs.ref }}
          github_token: ${{ secrets.PERSONAL_ACCESS_TOKEN }}

I wasn't using this with pull requests so needed a different way to find branch info. Thankfully this stackoverflow post saved the day for me!

https://stackoverflow.com/questions/58033366/how-to-get-current-branch-within-github-actions