Re: Creating objects manually and repack

From: Linus Torvalds <torvalds@osdl.org>
Date: Aug 4, 2006, 04:01 UTC
Message-ID: <Pine.LNX.4.64.0608032052210.4168@g5.osdl.org>
In-Reply-To: <9e4733910608032043u689f431rc5408c6d89398142@mail.gmail.com>

On Thu, 3 Aug 2006, Jon Smirl wrote:

Show 5 quoted lines

>
> I've made 500K object files with my cvs2svn front end. This is 500K of
> revision files and no tree files. Now I run get-repack. It says done
> counting zero objects. What needs to be update so that repack will
> find all of my objects?

Just enumerate them by hand, and pass the list off to git-pack-objects.

IOW, you can _literally_ do something like this

	(cd .git/objects ; find . -type f -name '[0-9a-f]*' | tr -d '\./') |
		git-pack-objects tmp-pack

and it will generate a pack-file and index (called "tmp-pack-*.pack" and "tmp-pack-*.idx" respectively) that contains all your lose objects.

Now, that said, pack-file will generally _suck_ if you actually do it like the above. You actually want to pass in the object names _together_ with the filenames they were generated from, so that git-pack-objects can use its heuristics for finding good delta candidates.

So what you actually want to do is pass in a set of object names with the name of the file they came with (space in between). See for example

	git-rev-list --objects HEAD^..

output for how something like that might look (git-pack-objects is designed to take the "git-rev-list --objects" output as its input).

> git-fsck isn't happy either since I have no HEAD.

Yeah, you cannot (and mustn't) run anything like git-fsck-objects or "git prune" until you've connected them all up somehow.

		Linus