npm script to automatically uninstall globally installed packages

npm-clean.js

var npm = require('npm');

// simple npm script to automatically uninstall globally installed package
//
// Usage: [sudo] node npm-clean.js
// Or, maybe: npm start
//
// edit protecteds array below to disable uninstall on these packages

var protecteds = ['npm'];

npm.load({global: true}, function() {

  npm.commands.ls([], true, function(e, data) {
    if(e) throw e;

    var deps = Object.keys(data.dependencies),
      protecteds = ['npm'];

    deps = deps.filter(function(dep) {
      return !~protecteds.indexOf(dep);
    });

    npm.commands.uninstall(deps, function(e) {
      if(e) throw e;
    });
  });
});

package.json

{
  "author": "mklabs",
  "name": "npm-clean",
  "description": "npm script to clean out globally installed package",
  "version": "0.0.0",
  "engines": {
    "node": "~v0.4.12"
  },
  "dependencies": {
    "npm": "~1.0.99"
  },
  "scripts": {
    "start": "node npm-clean.js"
  }
}