From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Todd A. Jacobs" <tjacobs@si2services.com>
Subject: Re: How to query the version of a file?
Date: Wed, 25 Aug 2010 09:27:44 -0400
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To: Edmond Halley <halleyinvent@gmail.com>
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On Wed, Aug 25, 2010 at 2:33 AM, Edmond Halley <halleyinvent@gmail.com> wrote:
> I have a standalone repository.
> File a.cpp has 3 versions.
> For example, I checked out version2(HEAD^).
>> git checkout HEAD^ a.cpp
> After a few days, I forget which version I have checked out.
> Is there a git command that can query which version is checked out?

There may be an easier way to do this, but the way I do it is (sort
of) documented in
http://www.kernel.org/pub/software/scm/git/docs/user-manual.html#Finding-comments-With-given-Content
(should be "commits" instead of "comments", but oh well!) and can be
tweaked to suit yourself:

    git log --raw --abbrev=40 --pretty=oneline |
    grep -B 24 `git hash-object a.cpp`

There may be other, and possibly more efficient, ways to do this, but
it generally works for me.