validate-config.yml

name: Validate configuration files

on:
  pull_request:
    types: [opened, synchronize, reopened]
    branches:
      - 'main'

jobs:
  validate_json_files:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          ref: main

      - name: Checkout main branch
        run: |
          echo "MAIN_SHA=$(git rev-parse HEAD)" >> $GITHUB_ENV

      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Save HEAD commit SHA
        run: |
          echo "HEAD_SHA=$(git rev-parse HEAD)" >> $GITHUB_ENV

      - name: Set up Node.js
        uses: actions/setup-node@v3
        with:
          node-version: '20' # Or your preferred version

      - name: Validate JSON files
        run: |
          echo $HEAD_SHA
          echo $MAIN_SHA
          echo $(git merge-base $MAIN_SHA $HEAD_SHA)
          git diff --quiet $(git merge-base $MAIN_SHA $HEAD_SHA) $HEAD_SHA -- config.json || (echo "config.json must not be changed" && exit 1) 
          CHANGED_PROTOCOLS=$(git diff --name-only $MAIN_SHA $HEAD_SHA -- 'protocols/*' | grep '^protocols/' | xargs -L1 dirname | sed 's|protocols/||' | sort -u) 
          CHANGED_PROTOCOLS=$CHANGED_PROTOCOLS node validate-config.js