format-source-code.yml

# Unique name for this workflow
name: Validate Source Code

# Definition when the workflow should run
on:
  workflow_dispatch:
  pull_request:
    types: [opened, synchronize]

# Jobs to be executed
jobs:
  validate-source-code-format:
    runs-on: ubuntu-latest
    steps:
      # Checkout the code in the PR
      - name: Checkout repository
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
          ref: ${{ github.event.pull_request.head.sha }}

      # Install Node JS
      - name: Install NodeJS
        uses: actions/setup-node@v2
        with:
          node-version: "14"
          cache: "npm"

      - name: Install dependencies
        run: npm ci --no-audit --prefer-offline

      # Verify Source Format with Prettier
      - name: Check format with Prettier
        run: |
          git diff -z --name-only --diff-filter=ACMRT ${{ github.event.pull_request.base.sha}}...${{ github.event.pull_request.head.sha }} | xargs -0 -I {} npx prettier --ignore-unknown --validate "{}"