npm-publish.yml

# This workflow will build a Node.js project, run tests, and publish an npm package when something is pushed to the main branch.

name: Publish to npm

on:
  push: 
    branches: 
      - main

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions/setup-node@v3
        with:
          node-version: 16
      - run: npm i
      - run: npm test

  publish-npm:
    needs: build
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Repository
        uses: actions/checkout@v3

      - name: Check version changes
        uses: EndBug/version-check@v2
        id: check

      - name: Version update detected
        if: steps.check.outputs.changed == 'true'
        run: 'echo "Version change found! New version: ${{ steps.check.outputs.version }} (${{ steps.check.outputs.type }})"'
      
      - name: Set up Node.js for NPM
        if: steps.check.outputs.changed == 'true'
        uses: actions/setup-node@v3
        with:
          node-version: 16
          registry-url: https://registry.npmjs.org/

      - name: Publish the package to NPM
        if: steps.check.outputs.changed == 'true'
        run: npm publish
        env:
          NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}