Re: Restore a single file in the index back to HEAD

From: Andreas Ericsson <ae@op5.se>
Date: Oct 27, 2006, 08:08 UTC
Message-ID: <4541BE8E.5050605@op5.se>
In-Reply-To: <20061027073834.GC29057@spearce.org>

Shawn Pearce wrote:

Show 19 quoted lines

> Andy Parkins <andyparkins@gmail.com> wrote:
>> However, it led me to wonder what the inverse of git-update-index is.
> 
> git-update-index  :-)
> 
> You can use something like:
> 
>     git ls-tree HEAD oops/file1 | git update-index --index-info 
> 
> to restore the index state of oops/file1.
> 
> 
> Which leads us to the always interesting, fun and exciting:
> 
>     git ls-tree -r HEAD | git update-index --index-info 
> 
> which will undo everything except 'git add' from the index, as
> ls-tree -r is listing everything in the last commit.
>

... and also shows The Power of the Pipe, which Daniel@google was missing in recent versions of git. ;-)

Btw, this is most definitely not a documented thing and requires a bit of core git knowledge, so perhaps the "shell-scripts were good for hackers to learn what to pipe where" really *is* a very important point.

-- 
Andreas Ericsson                   andreas.ericsson@op5.se
OP5 AB                             www.op5.se