Prevent Accidental NPM Publish

By disallowing publishing in your package.json and allowing it only in your CI build.

Usage

1. Set "private": true in your NPM package's package.json. You won't be able to publish your package to NPM without removing that.
2. Add the following steps to your CI build:

npm install allow-publish
$(npm bin)/allow-publish ./package.json

Packages produced by npm pack on your build machine will be publishable now.