From: David Turner <dturner@twopensource.com>
To: Duy Nguyen <pclouds@gmail.com>
Cc: Git Mailing List <git@vger.kernel.org>
Subject: Re: Watchman support for git
Date: Tue, 13 May 2014 19:19:42 -0400 [thread overview]
Message-ID: <1400023182.14179.23.camel@stross> (raw)
In-Reply-To: <CACsJy8CVK1codmuSvUyeVYo1d-nQ6thoV8pn1WN_8D8doYXu5g@mail.gmail.com>
On Wed, 2014-05-14 at 05:54 +0700, Duy Nguyen wrote:
> On Wed, May 14, 2014 at 5:38 AM, David Turner <dturner@twopensource.com> wrote:
> > On Mon, 2014-05-12 at 17:45 +0700, Duy Nguyen wrote:
> >> This is your quote from above, moved down a bit:
> >>
> >> > update_fs_cache should only have to update based on what it has learned
> >> > from watchman. So if no .gitignore has been changed, it should not have
> >> > to do very much work.
> >> >
> >> > I could take the fe_excluded check and move it above the
> >> > last_exclude_matching check in fs_cache_is_excluded; it causes t7300 to
> >> > fail when run under watchman but presumably that's fixable
> >>
> >> So you exclude files early and make the real read_directory() pass do
> >> pretty much nothing. This is probably not a good idea. Assume that I
> >> touch $TOP/.gitignore then do something other than "git status" (or
> >> "git add") then I have to pay read_directory() cost.
> >
> > I'm not sure I understand this. read_directory does something: it checks
> > the fs_cache (instead of the filesystem) for untracked files.
>
> A lot of commands do read_cache() that that eventually calls
> update_fs_cache, which does part of read_directory's work (the
> fe_excluded thing). But not many of those commands actually call
> read_directory(). It'd better if there's a way to mark that "this
> .gitignore is changed", but delay the actual exclude processsing until
> we are sure read_directory() will be used.
OK, that would be straighforward, I think.
next prev parent reply other threads:[~2014-05-13 23:19 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-02 23:14 Watchman support for git dturner
2014-05-02 23:14 ` [PATCH 1/3] After chdir to run grep, return to old directory dturner
2014-05-06 22:24 ` Junio C Hamano
2014-05-07 0:06 ` David Turner
2014-05-07 3:00 ` Jeff King
2014-05-07 3:33 ` David Turner
2014-05-07 17:42 ` Junio C Hamano
2014-05-07 20:57 ` David Turner
2014-05-02 23:14 ` [PATCH 3/3] Watchman support dturner
2014-05-02 23:20 ` Watchman support for git Felipe Contreras
2014-05-03 2:24 ` David Turner
2014-05-03 3:40 ` Felipe Contreras
2014-05-05 18:08 ` David Turner
2014-05-05 18:14 ` Felipe Contreras
2014-05-08 19:17 ` Sebastian Schuberth
2014-05-09 7:08 ` David Lang
2014-05-09 17:17 ` David Turner
2014-05-09 18:08 ` David Lang
2014-05-09 18:17 ` David Turner
2014-05-09 18:27 ` David Lang
2014-05-09 18:47 ` David Turner
2014-05-03 0:52 ` Duy Nguyen
2014-05-03 4:39 ` David Turner
2014-05-03 8:49 ` Duy Nguyen
2014-05-03 20:49 ` David Turner
2014-05-04 0:15 ` Duy Nguyen
2014-05-06 3:13 ` David Turner
2014-05-06 0:26 ` Duy Nguyen
2014-05-06 0:30 ` Duy Nguyen
2014-05-10 5:26 ` Duy Nguyen
2014-05-10 18:38 ` David Turner
2014-05-11 0:21 ` Duy Nguyen
2014-05-11 22:56 ` David Turner
2014-05-12 10:45 ` Duy Nguyen
2014-05-13 22:38 ` David Turner
2014-05-13 22:54 ` Duy Nguyen
2014-05-13 23:19 ` David Turner [this message]
2014-05-10 8:16 ` Duy Nguyen
2014-05-13 23:44 ` David Turner
2014-05-14 10:36 ` Duy Nguyen
2014-05-14 10:52 ` Duy Nguyen
2014-05-15 19:42 ` David Turner
2014-05-19 10:10 ` Duy Nguyen
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