main.yml

name: CI

on: [push]

jobs:
  build:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v1
    - name: Install and build
      run: yarn
    - name: Run Tests
      run: yarn test >> coverage.txt
    - name: Extract coverage percentage
      id: extract_coverage
      run: |
        # Extract the "Statements" percentage from the Coverage summary
        COVERAGE=$(awk '/Statements/ {print $3}' coverage.txt | tr -d '%')
        echo "COVERAGE=$COVERAGE" >> $GITHUB_ENV
    - name: Create coverage badge
      run: |
        curl -X POST -d '{"schemaVersion": 1, "label": "coverage", "message": "'"${{ env.COVERAGE }}"'%'", "color": "brightgreen"}' https://img.shields.io/endpoint > coverage-badge.json
    - name: Commit coverage badge
      run: |
        git config --global user.name 'GitHub Action'
        git config --global user.email 'action@github.com'
        mv coverage-badge.json ./coverage.json
        git add coverage.json
        git commit -m "Update coverage badge"
        git push