Re: Git completion slowness

[Frank Terbeck <ft@xxxxxxxxxxxxxxxxxxx>]

Nikolai Weibull wrote:
> On Fri, Dec 10, 2010 at 12:07, Frank Terbeck <ft@xxxxxxxxxxxxxxxxxxx> wrote:
>> We've heard people complaining about _git performance on IRC for a while
>> now. I have started to rewrite the _git file related completions some
>> time ago, but have since been swamped at work. So that has slowed down
>> to a halt.
>>
>> I'll attach the code to this mail though; maybe it'll be useful to
>> someone (search for "Git file listing helpers" to find the helper
>> functions). It doesn't have a helper for pathspecs yet, which the
>> git-checkout completion (and others) may need.
>>
>> Also, it's something I experimented with for only a short while. The
>> completions did work for me in my limited set of use-cases - they are
>> probably not perfect, yet. But they scaled well even on huge
>> repositories with many *many* files (like the linux kernel's git
>> repository).

(The ML software ate my mail, due to my attaching the code...)

> Iâve been rewriting _git for a while now.  Iâve updated all the Main
> Porcelain Commands.  Iâm currently stuck on something as unimportant
> as git-config, but I want to get everything right and Iâm doing it all
> in man page order.  Iâll hopefully have a delayed Christmas gift for
> you all at the beginning of 2011.  Iâll take a look at your changes
> and integrate them if they are still applicable.

Yay! :)

> My main problem right now is that Iâm working off of the Debian Zsh
> Git repository where I donât have write permissions.  Iâd like to set
> up a Zsh Git repository at GitHub so that I can more easily distribute
> my changes, but I havenât had time to look into setting this up.
> Perhaps someone can explain how you set up a CVS-to-Git mirror on
> GitHub?

There's already a regularly updated git mirror of the zsh CVS sources at
sourceforge:

    git://zsh.git.sf.net/gitroot/zsh/zsh

When I was working on a larger update of `vcs_info', I cloned that one
and published the result at github. That worked rather smoothly.

> Iâll also try to set up zstyles to the effect of allowing you to
> disable potentially costly completions.

That was something I wanted to do, too. We'll need those properly
documented to be able to point people to how to workaround problems with
costly actions.

Regards, Frank

-- 
In protocol design, perfection has been reached not when there is
nothing left to add, but when there is nothing left to take away.
                                                  -- RFC 1925