Provided by: npm_1.3.10~dfsg-1_all 

NAME
npm-submodule - Add a package as a git submodule
SYNOPSIS
npm.commands.submodule(packages, callback)
DESCRIPTION
For each package specified, npm will check if it has a git repository url in its package.json description
then add it as a git submodule at node_modules/<pkg name>.
This is a convenience only. From then on, it´s up to you to manage updates by using the appropriate git
commands. npm will stubbornly refuse to update, modify, or remove anything with a .git subfolder in it.
This command also does not install missing dependencies, if the package does not include them in its git
repository. If npm ls reports that things are missing, you can either install, link, or submodule them
yourself, or you can do npm explore <pkgname> -- npm install to install the dependencies into the
submodule folder.
SEE ALSO
• npm help json
• git help submodule
October 2013 NPM-SUBMODULE(3)