git submodule

Inspects, updates and manages submodules. Homepage: https://git-scm.com/docs/git-submodule.

Install a repository's specified submodules:

git submodule update --init --recursive

Add a git repository as a submodule:

git submodule add {{repository_url}}

Add a git repository as a submodule at the specified directory:

git submodule add {{repository_url}} {{path/to/directory}}

Update every submodule to its latest commit:

git submodule foreach git pull