Re: Truncating and cleaning a imported git repositary to make it more usable

From: Alex Bennee <kernel-hacker@bennee.com>
Date: Mar 28, 2008, 15:52 UTC
Message-ID: <b2cdc9f30803280852y4f160bb2tda1e688ddf7213e7@mail.gmail.com>
In-Reply-To: <32541b130803280550u2ed23b5auc84bf935d5344e84@mail.gmail.com>

On Fri, Mar 28, 2008 at 12:50 PM, Avery Pennarun <apenwarr@gmail.com> wrote:

Show 15 quoted lines

> On 3/28/08, Alex Bennee <kernel-hacker@bennee.com> wrote:
>  >  2. Create a new repo, starting at the common ancestor point
>  >
>  >   2(a). I'd need to remove the orphaned old CVS modules which are still
>  >  around but not referenced any more.
>  >
>  >  3. Create the product branches and import ANCESTOR..BRANCH_HEAD into
>  >  them
>
>  You probably want to look at git-filter-branch, particularly the
>  --parent-filter option.
>
>  Note that 2(a) would be easiest if you just did it before importing
>  from CVS at all, since it's easy to remove old modules from CVS just
>  by moving the files out of the way.

Ahh, having investigated further it seems the repo contains two CVS modules which account for about 1/3 of the checkout and are not needed (as they are standalone and separate). When I do the final import from CVS I can skip them. Having said that I'll need to run that over the weekend as cvsps takes up so much memory and swaps a lot.

I tried what I think is the correct usage of git-filter-branch but I get:

ajb@pitcairn:/export/git/fresh.git$ git-filter-branch --tree-filter 'rm -rf big_dira big_dirb' dev-branch warning: refname 'dev-branch' is ambiguous. Which ref do you want to rewrite?

Any ideas?

-- 
Alex, homepage: http://www.bennee.com/~alex/