Re: [PATCH] pack.indexversion config option now defaults to 2

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On Tue, 24 Jun 2008, Junio C Hamano wrote:

> For the other "usedeltabaseoffset" change, I think the insn in the
> documentation Nico added is reasonable:
> 
> +	By default, linkgit:git-repack[1] creates packs that use
> +	delta-base offset. If you need to share your repository with
> +	git older than version 1.4.4, either directly or via a dumb
> +	protocol such as http, then you need to set this option to
> +	"false" and repack. Access from old git versions over the
> +	native protocol are unaffected by this option.
> 
> except perhaps that the "set false and repack" should be clarified
> further, perhaps like:
> 
> 	... then you need to set this option to "false" and repack using
> 	git that is newer than (and including) v1.5.0.

Actually the first release to support this is v1.4.4 not v1.5.0.

> I am basing the above 1.5.0 on description of b6945f5 (git-repack:
> repo.usedeltabaseoffset, 2006-10-13).

$ git describe --contains b6945f5
v1.4.4-rc1~77^2~2

> On the "indexVersion" change, the documentation reads:
> 
> pack.indexVersion::
> 	Specify the default pack index version.  Valid values are 1 for
>  	legacy pack index used by Git versions prior to 1.5.2, and 2 for
>  	the new pack index with capabilities for packs larger than 4 GB
>  	as well as proper protection against the repacking of corrupted
> +	packs.  Version 2 is the default.  Note that version 2 is enforced
> +	and this config option ignored whenever the corresponding pack is
> +	larger than 2 GB.
> 
> which lacks the recovery insn (and it is int strictly the fault of this
> patch, but we should have done this when we introduced the v2 idx).  I
> think a separate paragraph after the above would be necessary and
> sufficient:
> 
> 	If you have an ancient git that does not understand the version 2
> 	`*.idx` file, cloning or fetching over a non native protocol
> 	(e.g. "http" and "rsync") which will copy both `*.pack` file and
> 	corresponding `*.idx` file from the other side may give you a
> 	repository that cannot be accessed with your old git.  If the
> 	`*.pack` file is smaller than 2 GB, however, you can use
> 	`git-index-pack` on the `*.pack` to regenerate the `*.idx` file.

Looks fine to me.  Will you amend the patches or do you want me to 
repost them?


Nicolas
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