Corrupt pack file using older versions of git on a newer repo..

Corrupt pack file using older versions of git on a newer repo..

[Sean]

This is probably expected behavior, but when bisecting another Git
issue[1], i found that after a fresh clone of the git repository using
1.4.4.2 I got the following corrupt pack file when accessing that repo
with an old version of git:

$ git --version
git version 1.4.2

$ git log
fatal: corrupted pack file .git/objects/pack/pack-d75f6a8307f8d8ce9727fe27107486839c54aef6.pack

When reverting to 1.4.3 instead, a git reset triggered the corrupt pack
error.  Anyway, just a heads up in case it actually matters.

Sean

[1]  The "Git" issue turned out not to be Git at all but rather the
Beagle search daemon which seems to touch file stat information as
it scans files in a git repo causing strange git status and diff

Re: Corrupt pack file using older versions of git on a newer repo..

[Nicolas Pitre]

On Wed, 20 Dec 2006, Sean wrote:

> 
> This is probably expected behavior, but when bisecting another Git
> issue[1], i found that after a fresh clone of the git repository using
> 1.4.4.2 I got the following corrupt pack file when accessing that repo
> with an old version of git:
> 
> $ git --version
> git version 1.4.2
> 
> $ git log
> fatal: corrupted pack file .git/objects/pack/pack-d75f6a8307f8d8ce9727fe27107486839c54aef6.pack

To make that repository accessible with older git versions simply run 
git-repack -a -d using version 1.4.4.2.

The clone with version 1.4.4.2 added OBJ_OFS_DELTA objects to the pack 
which older git versions don't know about.  Those objects are used for 
pack transport when both ends know about them as they take less space.  
But the repack doesn't use them by default so a full repack will get rid 
of them automatically.