name: publish

on: push

jobs:
  publish:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Setup Node
        uses: actions/setup-node@v1
        with:
          node-version: '12.x'
          registry-url: 'https://registry.npmjs.org'
      - name: Build Package
        run: |
          npm install -g json ts-node
          npm install
      - name: Publish
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
        run: |
          pkgname=$(json name < package.json)
          localversion=$(json version < package.json)
          remoteversion=$(npm view ${pkgname} version)

          echo ${localversion}
          echo ${remoteversion}

          if [ ${localversion} \> ${remoteversion} ]
          then
            npm publish
            git config user.name github-actions
            git config user.email github-actions@github.com
            git tag -a ${localversion} -m v${localversion}
            git push --tags
          fi