REPL tools for NodeJS

injs.js

#!/usr/bin/env node
/*jshint strict:true node:true es5:true
onevar:true laxcomma:true laxbreak:true eqeqeq:true immed:true latedef:true*/
(function () {
  "use strict";

  var repl = require("repl")
    , context = repl.start("injs> ").context
    , path = require('path')
    , fs = require('fs')
    , rcPath
    , noderc
    ;
  
  // http://stackoverflow.com/questions/9080085/node-js-find-home-directory-in-platform-agnostic-way
  function getUserHome() {
    return process.env[/^win/.test(process.platform) ? 'USERPROFILE' : 'HOME'];
  }
  
  rcPath = path.join(getUserHome(), '.noderc.js');
  
  if (!fs.existsSync(rcPath)) { return; }
  try {
    noderc = require(rcPath);
    Object.keys(noderc).forEach(function (key) {
      context[key] = noderc[key];
    });
  } catch(e) {
    console.error("failed to load '" + rcPath + "'");
  }
}());