Re: Finding the repository

From: Phil Hord <phil.hord@gmail.com>
Date: Oct 25, 2013, 03:09 UTC
Message-ID: <CABURp0rFPYZEDC95+pL7bvnFuMpsiqp_YoQJ6f0DSFYWP=v4Gw@mail.gmail.com>
In-Reply-To: <CACsJy8AVdV8nPXFVdj37O1dgvcWh=tQ5C7iUE134Wk2yTD42Ug@mail.gmail.com>

On Thu, Oct 24, 2013 at 9:46 AM, Duy Nguyen <pclouds@gmail.com> wrote:

Show 6 quoted lines

> On Thu, Oct 24, 2013 at 2:49 PM, Perry Hutchison <perryh@pluto.rain.com> wrote:
>> Duy Nguyen <pclouds@gmail.com> wrote:
>>
>>> ... it's not easy to determine ambiguity here, especially when the
>>> repo finding code does not know anything about "bar/barz.c" (is it
>>> a pathname or an argument to an option?).

...

Show 15 quoted lines

>>> There are more cases to consider, like what if you do
>>> "git rm bar/baz.c and rab/zab.c" where bar and rab are
>>> two different repositories..
>>
>> So we remove baz.c from bar and zab.c from rab.  It's not clear
>> to me that there's anything wrong with that -- it's exactly what
>> I would expect to have happen (and also what the hackish script
>> I posted will do).
>
> For "git rm", maybe. Many other commands need repo information and it
> would not make sense to have paths from two different repositories.
> For example, commit, rev-list or log. And it may break more things as
> most of current commands are designed to work on one repo from a to z.
> Some may support multi-repo operations if they're part of submodule
> support.

I've done some preliminary work on extending this sort of behavior to submodule commands. For example,

  git grep --recurse-submodules foo

which would look in the current project path and also any submodules encountered. This usage also begs for this extension:

  git grep --recurse-submodules foo path/to/sub/bar.c

Where 'path/to/sub' is a submodule, and therefore a foreign git repo to this one. Solving this is a little bit easier than your case because git is already running inside a repo. Extending the reach to submodules only requires more odb's than our first one to be considered. Along the way, I have considered your case, but I haven't focused on it. Lately I haven't had time to focus on my case either, though. :-\

Phil