name: publish

on:
  release:
    types: [published, created, edited]

jobs:
  release:
    name: publish
    runs-on: ubuntu-latest

    steps:
      - name: Begin CI...
        uses: actions/checkout@v2

      - name: Use Node 12
        uses: actions/setup-node@v1
        with:
          node-version: 12.x
          registry-url: https://npm.pkg.github.com
          scope: '@MaTeMaTuK'

      - name: NPM Publish
        run: |
          LATEST=`npm view . version`
          CURRENT=`cat package.json | jq -r .version`
          if [ "$LATEST" != "$CURRENT" ]
          then
            npm ci
            npm login --registry=https://npm.pkg.github.com/
            npm publish
          fi
        env:
          NODE_AUTH_TOKEN: ${{secrets.GITHUB_TOKEN}}