Re: [WISH] Store also tag dereferences in packed-refs

> Time needed to execute git-peek-remote in my box with cold cache currently is:
>
> - git tree 2.347 ms
> - linux tree 2.144 ms
>
> And refs are *already* packed in both repos.
>
> Looking at packed-refs file, it contains something like:
>
> d9b0f913ce0508fcc83e642e0241f373428368e5 refs/tags/v1.4.3
> 4314f5982d2aac08001a977fc0b1b611e858e025 refs/tags/v1.4.3-rc1
>
> while I would need something like git-peek-remote output,
>
> d9b0f913ce0508fcc83e642e0241f373428368e5        refs/tags/v1.4.3
> e0b0830726286287744cc9e1a629a534bbe75452        refs/tags/v1.4.3^{}
> 4314f5982d2aac08001a977fc0b1b611e858e025        refs/tags/v1.4.3-rc1
> 1965efb1599f59b8e3380335d1fa395e2008a30b        refs/tags/v1.4.3-rc1^{}
>
> Because the sha value a tag points to is needed to match against
> git-rev-list output so to identify tagged revisions.
>
> Would be possible to store in packed-refs also the dereferenced tag
> info, so that cold opening of a repository would be much faster?
>
> Just to give an idea, with warmed up cache, refs reading times are:
>
> - git tree 43 ms
> - linux tree 28 ms
>
> Thanks
> Marco
>
> P.S: In case it's not clear I don't suggest to read directly the
> packed-refs file with the added info, but always to use
> git-peek-remote that _would_ became much faster.