Github action for consistent npm publishing

npm-publish.yml

name: Publish NPM package
on:
  push:
    branches:
      - master
jobs:
  version-check:
    runs-on: ubuntu-latest
    outputs:
      changed: ${{ steps.version-check.outputs.changed }}
      version: ${{ steps.version-check.outputs.version }}
      commit: ${{ steps.version-check.outputs.commit }}
    steps:
      - uses: actions/checkout@v2
      - uses: actions/setup-node@v1
        with:
          node-version: 12
      - id: version-check
        uses: EndBug/version-check@v1
        with:
          diff-search: true

  run-test:
    needs: version-check
    runs-on: ubuntu-latest
    if: needs.version-check.outputs.changed == 'true'
    steps:
      - uses: actions/checkout@v2
        with:
          ref: ${{ needs.version-check.outputs.commit }}
      - uses: actions/setup-node@v1
        with:
          node-version: 12
      - run: npm ci
      - run: npm test

  publish-npm:
    needs: [ version-check, run-test ]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
        with:
          ref: ${{ needs.version-check.outputs.commit }}
      - uses: actions/setup-node@v1
        with:
          node-version: 12
          registry-url: https://registry.npmjs.org/
      - run: npm ci
      - run: npm publish
        env:
          NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}

  create-tag:
    needs: [ version-check, publish-npm ]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/github-script@v3
        with:
          github-token: ${{secrets.GITHUB_TOKEN}}
          script: |
            github.git.createRef({
              owner: context.repo.owner,
              repo: context.repo.repo,
              ref: "refs/tags/v${{ needs.version-check.outputs.version }}",
              sha: "${{ needs.version-check.outputs.commit }}"
            })