Run bower from root user, it's possible? How?

I've a local development server where I test a lot of things, now I'm playing with bower for manages libraries dependencies in my Symfony2 project. After get NodeJS (v0.10.31) installed and also bower (1.3.9) I tried to run the command sp:bower:install which belongs to Symfony2 SpBowerBundle from console as root user:

Symfony > sp:bower:install
Installing bower dependencies for "TemplateBundle" into "/var/www/html/tanane/src/Tanane/TemplateBundle/Resources/config/bower/../../public/components"

bower ESUDO         Cannot be run with sudo

Additional error details:
Since bower is a user command, there is no need to execute it with superuser permissions.
If you're having permission errors when using bower without sudo, please spend a few minutes learning more about how your system should work and make any necessary repairs.

http://www.joyent.com/blog/installing-node-and-npm
https://gist.github.com/isaacs/579814

You can however run a command with sudo using --allow-root option

I know that adding --allow-root works since I tested directly from bash and works but apparently isn't allowed from bundle command line. Now, the only way to run bower as root is by adding --allow-root or exists another way to go?

below answer is for symfony framework's bundle, but if you come here from google using phrase "bower root" you have two options to solve that:

  1. add --allow-root to command
  2. set global bower config that will allow running bower as root

Option 1: you can run bower as root by typing:

bower install --allow-root

root is allowed by setting --allow-root command parameter

Option 2: is using global setting that allows root, by creating file: /root/.bowerrc which have inside following configuration:

{ "allow_root": true }

how to do this in SpBowerBundle symfony bundle:
probably you haven't set sp_bower.allow_root to true in SpBowerBundle config

in bundle config, by default you have set something like this:

allow_root: false # optional

but you should have:

allow_root: true

so in app/config/config.yml add this bundle config

sp_bower:
    allow_root: false # optional

bundle config reference (all settings): https://github.com/Spea/SpBowerBundle/blob/master/Resources/doc/configuration_reference.md