Re: How to replace a single corrupt, packed object?

["Shawn O. Pearce" <spearce@spearce.org>]

Pieter de Bie <pdebie@ai.rug.nl> wrote:
> On 8 aug 2008, at 18:19, Shawn O. Pearce wrote:
>
>> The unpack-objects process will
>> fail when it finds this bad object, and everything after that in
>> the pack file will be dropped on the floor and not get unpacked.
>
> Even with the -r switch?
>
>        -r     When unpacking a corrupt packfile, the command dies at the 
> first corruption. This flag tells it to keep going and make
>               the best effort to recover as many objects as possible.

Oh, thanks for reminding me.  I had forgotten that Linus added -r
when someone else had corruption in a packed object.  Yea, if you
use -r it may be able to resume and pick up where it left off.

I haven't studied the -r code so I'm not sure how it knows where
its safe to restart unpacking from.  But if you have a .idx file
we probably could make a really good guess based on the offsets
it stores.  I doubt unpack-objects makes use of the .idx.

-- 
Shawn.