Subject: Re: Fetch by SHA missing

From: Johannes Sixt <[email-masked]>
Date: Wed, 06 Oct 2010 08:02:52 +0200

Am 10/5/2010 21:37, schrieb Jan Engelhardt:
> Hi,
> 
> 
> it is possible to select single heads/tags for download, but this does 
> not work with SHA IDs as of 1.7.1.
> 
> $ git fetch linus 3c06806e690885ce978ef180c8f8b6f8c17fb4b4:x
> fatal: Couldn't find remote ref 3c06806e690885ce978ef180c8f8b6f8c17fb4b4
> $ git fetch linus refs/heads/master
> remote: Counting objects: 1254, done.
> remote: Compressing objects: 100% (234/234), done.
> remote: Total 709 (delta 562), reused 602 (delta 475)
> Receiving objects: 100% (709/709), 112.41 KiB, done.
> Resolving deltas: 100% (562/562), completed with 212 local objects.
> From git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
>  * branch            master     -> FETCH_HEAD

That's by design:

http://thread.gmane.org/gmane.comp.version-control.git/73368/focus=73994

That is, when you accidentally push secret data, you can rewind your refs
on the server. Even though the objects still live on the server (until
they are garbage-collected) nobody will be able to fetch your secret stuff
even if they happen to know the SHA1.