Re: git subtree error (just how do you expect me to merge 0 trees?)

From: greened@obbligato.org <greened@obbligato.org>
Date: Jan 1, 2013, 02:09 UTC
Message-ID: <87licd3b7w.fsf@waller.obbligato.org>
In-Reply-To: <FBE22FDC-5800-40C8-9778-82DFD27579F6@drewcrawfordapps.com>

Drew Crawford <drew@drewcrawfordapps.com> writes:

> Ideally it would be better to emit an error-message from a script
> higher up the calling chain that would be more descriptive about the
> problem (such as suggesting no branch is specified).--

I'm looking at implementing this but I need a bit of help from the git experts.

git-subtree add accepts either a refspec or a path to a repository and a refspec. With one positional option, git-subtree add simply assumes it's a refspec. Is there an easy way to check whether a string is a proper refspec? Even better would be a way to check if a string is a path to a git repository.

                         -David