Add compatibility for NPM long path names when using VirtualBox shared folders.

npm-windows-host-compat.js

var fs = require('fs');
var path = require('path');

function deleteFolderRecursive(path) {
    if (fs.existsSync(path)) {
        console.log('exists');
        fs.readdirSync(path).forEach(function(file, index){
            var curPath = path + "/" + file;
            if (fs.lstatSync(curPath).isDirectory()) {
                deleteFolderRecursive(curPath);
            } else {
                fs.unlinkSync(curPath);
            }
        });
        fs.rmdirSync(path);
    }
    // Remove any broken symlinks
    try {
        if (fs.lstatSync(path).isSymbolicLink()) {
            fs.unlinkSync(path);
        }
    } catch (e) { }
}

/**
 * Check if the current directory has a `package.json` file. Check if the
 * `node_modules` directory is symlinked into `/cached_node_modules/xxxxxxxx`.
 * If a symlink doesn't exist - delete `node_modules` and re-create a symlink
 * into the cached folder.
 */
function symlink() {
    var cwd = process.cwd();
    if (!fs.existsSync(path.join(cwd, 'package.json'))) {
        return false;
    }

    var modulesPath = path.join(cwd, 'node_modules');
    if (fs.existsSync(modulesPath) && fs.lstatSync(modulesPath).isSymbolicLink()) {
        return false;
    }

    console.log('Symlinking `node_modules` for Windows VirtualBox compatability...');
    deleteFolderRecursive(modulesPath);
    var cachePath = path.join('/cached_node_modules', (+new Date()).toString(36));
    fs.mkdirSync(cachePath);
    fs.symlinkSync(cachePath, modulesPath);
    return true;
}

module.exports = {
	symlink: symlink
};