Re: Moving a directory with history from one repository to another while renaming

From: Johannes Schindelin <johannes.schindelin@gmx.de>
Date: Jun 21, 2007, 14:05 UTC
Message-ID: <Pine.LNX.4.64.0706211504060.4059@racer.site>
In-Reply-To: <200706211457.29030.andyparkins@gmail.com>

Hi,

On Thu, 21 Jun 2007, Andy Parkins wrote:

Show 14 quoted lines

> On Thursday 2007 June 21, Jeff King wrote:
> 
> > You can do this much more efficiently by just operating on the index.
> > Something like:
> >
> > git-filter-branch --index-filter \
> >  'git-ls-files -s | sed -n 's/change/paths/p' | git-update-index
> > --index-info' \ directorymoved
> 
> :-D  Even better.  I am definitely in the "fan of git-filter-branch" camp.
> 
> Thanks for sharing that line; I've actually found it instructive for more than 
> just git-filter-branch.  I definitely hadn't appreciated the fact that the 
> index can be so easily manipulated.

You have to adapt the line minimally: As is, it will possibly catch the wrong names, and it does not _move_ the directory, but rather _copy_ it.

So I think something like

git-ls-files -s | sed "s-\t-&newsubdir/-" |
  GIT_INDEX_FILE="$GIT_INDEX_FILE".new git-update-index --index-info &&
mv "$GIT_INDEX_FILE".new "$GIT_INDEX_FILE"

is needed.

Ciao, Dscho