From: Kalle Olavi Niemitalo <kon@iki.fi>
Date: Wed, 16 Jul 2008 19:15:26 GMT
Subject: Re: [PATCHv2] Documentation/git-submodule.txt: Add Description section
Message-ID: <87d4ldvdwx.fsf@Astalo.kon.iki.fi>
In-Reply-To: <20080716184248.6524.38463.stgit@localhost>

Petr Baudis <pasky@suse.cz> writes:

> +Submodules are a special kind of tree entries which refer to a particular tree
> +in another repository (living at a given URL).  The tree entry describes
> +the existence of a submodule with the given name and the exact revision that
> +should be used, while the location of the repository is described in the
> +`/.gitmodules` file.

I was surprised to learn that a commit ID in a tree does not
prevent Git from pruning the corresponding commit object if
one happens to exist in the same repository.  That might be
best documented under "Tree Object" in user-manual.txt though,
rather than in git-submodule.txt.