* [PATCH] git: Pass prefix filter to ls-files even if it matches no files
@ 2013-03-17 12:35 Torstein Hegge
2013-04-20 19:00 ` Torstein Hegge
0 siblings, 1 reply; 4+ messages in thread
From: Torstein Hegge @ 2013-03-17 12:35 UTC (permalink / raw)
To: zsh-workers
When a branch or tag name is completed with zsh in a large git repo, the
completion is slow if the given prefix doesn't match a file or directory in
the current working directory. Testing with linux.git, which contains release
tags like v3.9 and a directory virt/:
git log v<tab>
takes about 0.5 seconds, while
git log v3<tab>
takes about 25 seconds.
(Timed using zsh 4.3.17, on a fairly slow cpu. zsh from git appears to be
quite a bit faster, but the difference between completing v and v3 is still
large.)
The difference between the two is that v<tab> passes the result of v* to git
ls-files while v3<tab> determines that v3* matches no files, and passes an
empty prefix to git ls-files. So git ls-files lists all files in the repo
and passes that on to _multi_parts.
Making git do the expansion of the * after the prefix lets git ls-files v3*
return an empty list, making _multi_parts job easier.
This does not affect the behavior of git log <tab>, but improves the
performance of partial tag and branch tab-completion in the common case where
file names and tag/branch names don't overlap.
---
Completion/Unix/Command/_git | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Completion/Unix/Command/_git b/Completion/Unix/Command/_git
index 2b6a369..d736367 100644
--- a/Completion/Unix/Command/_git
+++ b/Completion/Unix/Command/_git
@@ -5339,7 +5339,7 @@ __git_files () {
# TODO: --directory should probably be added to $opts when --others is given.
local pref=$gitcdup$gitprefix$PREFIX
- files=(${(0)"$(_call_program files git ls-files -z --exclude-standard $opts -- ${pref:+$pref\*} 2>/dev/null)"})
+ files=(${(0)"$(_call_program files git ls-files -z --exclude-standard $opts -- ${pref:+$pref\\\*} 2>/dev/null)"})
__git_command_successful $pipestatus || return
# _wanted $tag expl $description _files -g '{'${(j:,:)files}'}' $compadd_opts -
--
1.7.10.4
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] git: Pass prefix filter to ls-files even if it matches no files
2013-03-17 12:35 [PATCH] git: Pass prefix filter to ls-files even if it matches no files Torstein Hegge
@ 2013-04-20 19:00 ` Torstein Hegge
2013-04-20 20:31 ` Frank Terbeck
0 siblings, 1 reply; 4+ messages in thread
From: Torstein Hegge @ 2013-04-20 19:00 UTC (permalink / raw)
To: zsh-workers
On Sun, Mar 17, 2013 at 13:35:25 +0100, Torstein Hegge wrote:
> When a branch or tag name is completed with zsh in a large git repo, the
> completion is slow if the given prefix doesn't match a file or directory in
> the current working directory. Testing with linux.git, which contains release
> tags like v3.9 and a directory virt/:
>
> git log v<tab>
>
> takes about 0.5 seconds, while
>
> git log v3<tab>
>
> takes about 25 seconds.
>
> (Timed using zsh 4.3.17, on a fairly slow cpu. zsh from git appears to be
> quite a bit faster, but the difference between completing v and v3 is still
> large.)
>
> The difference between the two is that v<tab> passes the result of v* to git
> ls-files while v3<tab> determines that v3* matches no files, and passes an
> empty prefix to git ls-files. So git ls-files lists all files in the repo
> and passes that on to _multi_parts.
>
> Making git do the expansion of the * after the prefix lets git ls-files v3*
> return an empty list, making _multi_parts job easier.
>
> This does not affect the behavior of git log <tab>, but improves the
> performance of partial tag and branch tab-completion in the common case where
> file names and tag/branch names don't overlap.
> ---
No interest in this? Or did I miss something obvious?
> Completion/Unix/Command/_git | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/Completion/Unix/Command/_git b/Completion/Unix/Command/_git
> index 2b6a369..d736367 100644
> --- a/Completion/Unix/Command/_git
> +++ b/Completion/Unix/Command/_git
> @@ -5339,7 +5339,7 @@ __git_files () {
> # TODO: --directory should probably be added to $opts when --others is given.
>
> local pref=$gitcdup$gitprefix$PREFIX
> - files=(${(0)"$(_call_program files git ls-files -z --exclude-standard $opts -- ${pref:+$pref\*} 2>/dev/null)"})
> + files=(${(0)"$(_call_program files git ls-files -z --exclude-standard $opts -- ${pref:+$pref\\\*} 2>/dev/null)"})
> __git_command_successful $pipestatus || return
>
> # _wanted $tag expl $description _files -g '{'${(j:,:)files}'}' $compadd_opts -
> --
> 1.7.10.4
>
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] git: Pass prefix filter to ls-files even if it matches no files
2013-04-20 19:00 ` Torstein Hegge
@ 2013-04-20 20:31 ` Frank Terbeck
2013-04-21 6:09 ` Nikolai Weibull
0 siblings, 1 reply; 4+ messages in thread
From: Frank Terbeck @ 2013-04-20 20:31 UTC (permalink / raw)
To: zsh-workers
Torstein Hegge wrote:
[...]
> No interest in this? Or did I miss something obvious?
Probably just an oversight. I've pushed your commit to the central
repository. Thanks for the patch and the ping.
Regards, Frank
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] git: Pass prefix filter to ls-files even if it matches no files
2013-04-20 20:31 ` Frank Terbeck
@ 2013-04-21 6:09 ` Nikolai Weibull
0 siblings, 0 replies; 4+ messages in thread
From: Nikolai Weibull @ 2013-04-21 6:09 UTC (permalink / raw)
To: Frank Terbeck; +Cc: zsh-workers
On Sat, Apr 20, 2013 at 10:31 PM, Frank Terbeck <ft@bewatermyfriend.org> wrote:
> Torstein Hegge wrote:
> [...]
>> No interest in this? Or did I miss something obvious?
>
> Probably just an oversight. I've pushed your commit to the central
> repository. Thanks for the patch and the ping.
Yeah, sorry, I seem to have missed this completely.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2013-04-21 6:09 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2013-03-17 12:35 [PATCH] git: Pass prefix filter to ls-files even if it matches no files Torstein Hegge
2013-04-20 19:00 ` Torstein Hegge
2013-04-20 20:31 ` Frank Terbeck
2013-04-21 6:09 ` Nikolai Weibull
Code repositories for project(s) associated with this public inbox
https://git.vuxu.org/mirror/zsh/
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).