classroom.yml

name: GitHub Classroom Workflow

on: 
  push:
    branches:
    - '*'
    - '!badges'

jobs:
  build:
    name: Autograding
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
        with:
          persist-credentials: false # otherwise, the token used is the GITHUB_TOKEN, instead of your personal token 
          fetch-depth: 0             # otherwise, you will failed to push refs to dest repo

      # add id to step so outputs can be referenced
      - uses: education/autograding@v1
        id: autograder
        continue-on-error: true
        env:
           MPLBACKEND: agg

      # make dir for badges
      - name: badges branch and make dir
        run: |
          git checkout badges || git checkout -b badges
          mkdir -p .github/badges

      # store points in badges branch for automatic retrieval
      - name: points.csv file
        run: echo "${{ steps.autograder.outputs.Points }}" | tr / , > .github/badges/points.csv

      # make points badge
      - name: points badge
        uses: emibcn/badge-action@v1
        with:
          LABEL: 'Points'
          STATUS: ${{ steps.autograder.outputs.Points }}
          COLOR: cyan
          path: '.github/badges/points.svg'

      # commit and push badge if score has changed
      - name: Commit badge and points.csv
        run: |
          git config --local user.email "github-actions[bot]@users.noreply.github.com"
          git config --local user.name "GitHub Action[bot]"       
          git add '.github/badges/points.svg'
          git add '.github/badges/points.csv'         
          git commit -m "Add/Update badge and points.csv"
        continue-on-error: true
      - name: Push badge commit
        uses: ad-m/github-push-action@master
        if: ${{ success() }}
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          branch: badges
          force: true

      # fail job if autograder returns failed
      - name: check autograder pass fail
        if: ${{ steps.autograder.outcome != 'success' }}
        run: exit 1