NPM (pre)version

README.md

Test (pre)version scripts

$ npm version 2.0.0

> test@2.0.0 preversion /tmp/test
> ./check.js

{ envVersion: '2.0.0', pkgVersion: '1.2.3' }
v2.0.0

> test@2.0.0 version /tmp/test
> ./check.js

{ envVersion: '2.0.0', pkgVersion: '2.0.0' }

check.js

#!/usr/bin/env node
console.log({
    envVersion: process.env.npm_package_version,
    pkgVersion: require('./package.json').version
});

package.json

{
  "name": "test",
  "version": "1.2.3",
  "scripts": {
    "preversion": "./check.js",
    "version": "./check.js"
  }
}