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From: Nguyen Thai Ngoc Duy <pclouds@gmail.com>
To: Jakub Narebski <jnareb@gmail.com>
Cc: Jonathan Nieder <jrnieder@gmail.com>,
	"Dmitry S. Kravtsov" <idkravitz@gmail.com>,
	git@vger.kernel.org, "Shawn O. Pearce" <spearce@spearce.org>
Subject: Re: Features from GitSurvey 2010
Date: Tue, 1 Feb 2011 22:52:34 +0700	[thread overview]
Message-ID: <AANLkTinJVa++tttPDav1g1+w128fWsouM=+gf14eUOOK@mail.gmail.com> (raw)
In-Reply-To: <201102011451.17456.jnareb@gmail.com>

On Tue, Feb 1, 2011 at 8:51 PM, Jakub Narebski <jnareb@gmail.com> wrote:
> On Sun, 30 Jan 2011, Jonathan Nieder wrote:
>> > support for tracking empty directories
>>
>> Tricky to get the UI right.  I am interested in and would be glad to
>> help with this one.
>
> Also one needs to remember that this would require adding extension
> to git index, because currently it tracks only files, and not
> directories.  Explicitly tracking directories in the index could be
> useful for other purposes...
>
> The major difficulty of this is IMHO not the UI, but tracking all those
> tricky corner cases (like directory/file conflict, etc.).

Sort order in index is quite special/strange and must be handled
correctly when dirs and files are mixed. There are already special
directories in index: the submodules. Current git code treats
S_ISDIR() and S_ISGITLINK() the same in ce_to_dtype() and some more
places. You need to decouple it somehow.

I tried this (for another purpose) and pulled back. I recall Shawn had
a tree-based index implementation, don't know if he still has it.
Could be a good point to start adding dirs to index.

Actually tree-based index with dictionary (something like trees in
packv4) is a good feature itself. It could shrink index size down a
lot. index is frequently read/written so small index helps (webkit's
index is 16M, 4M after gzipped).
-- 
Duy

  reply	other threads:[~2011-02-01 15:53 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-01-29 10:01 Features from GitSurvey 2010 Dmitry S. Kravtsov
2011-01-29 23:13 ` Jonathan Nieder
2011-02-01 13:51   ` Jakub Narebski
2011-02-01 15:52     ` Nguyen Thai Ngoc Duy [this message]
2011-02-01 16:33       ` Shawn Pearce
2011-02-01 16:27     ` Shawn Pearce
2011-02-01 17:05       ` Nguyen Thai Ngoc Duy
2011-02-01 21:27         ` Junio C Hamano
2011-02-01 21:44         ` Nicolas Pitre
2011-02-01 17:11       ` Nguyen Thai Ngoc Duy
2011-02-01 17:34         ` Shawn Pearce
2011-02-01 21:51           ` Nicolas Pitre
2011-02-02  0:26             ` Shawn Pearce
2011-02-02  2:11               ` Nicolas Pitre
2011-02-02  2:23                 ` david
2011-02-03 14:38             ` Geert Bosch
2011-02-03 17:39               ` Narrow clone (Re: features from GitSurvey 2010) Jonathan Nieder
2011-02-03 21:23                 ` Geert Bosch
2011-02-03 21:33                   ` Jonathan Nieder
2011-02-03 21:38                   ` Jonathan Nieder
2011-02-03 21:33               ` Features from GitSurvey 2010 Nicolas Pitre
2011-02-01 17:28     ` Tracking empty directories Jonathan Nieder
2011-02-01 17:54       ` Nguyen Thai Ngoc Duy
2011-02-01 18:15         ` Ilari Liusvaara
2011-02-01 18:31           ` Jakub Narebski
2011-02-01 19:09             ` Ilari Liusvaara
2011-02-01 18:35         ` Jonathan Nieder
2011-02-01 19:03           ` Jakub Narebski
2011-02-02  3:54             ` Nguyen Thai Ngoc Duy
2011-02-02 12:31               ` Kevin P. Fleming
2011-02-01 21:36     ` Features from GitSurvey 2010 Nicolas Pitre
2011-02-01 22:50     ` big files in git was: " david
2011-02-03  6:25       ` Nicolas Pitre
2011-02-01 17:44   ` Matthieu Moy
2011-02-01 18:42     ` Jonathan Nieder
2011-02-01 20:23       ` Matthieu Moy

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