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Re: [PATCH] gitweb: speed up project listing on large work trees by limiting find depth

From
Shawn O. Pearce <spearce@spearce.org>
Date
Oct 17, 2007, 04:00 UTC
Message-ID
<20071017040028.GT13801@spearce.org>
In-Reply-To
<1192592725-28143-1-git-send-email-git@vicaya.com>
Luke Lu <git@vicaya.com> wrote:
> Resubmitting patch after passing gitweb regression tests.
...
Show 9 quoted lines
> @@ -1519,6 +1524,11 @@ sub git_get_projects_list {
>  				return if (m!^[/.]$!);
>  				# only directories can be git repositories
>  				return unless (-d $_);
> +				# don't traverse too deep (Find is super slow on os x)
> +				if (($File::Find::name =~ tr!/!!) - $pfxdepth > $project_maxdepth) {
> +					$File::Find::prune = 1;
> +					return;
> +				}

Thanks. I'm squashing this into your patch. I'm not sure what the impact is of altering $File::Find::name in the middle of the find algorithm and I'm not sure we want to figure that out later. We found out the hard way today that altering a non-local'd $_ in the function is what was causing the breakage.

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 48e21da..9f47c3f 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -1525,7 +1525,8 @@ sub git_get_projects_list {
 				# only directories can be git repositories
 				return unless (-d $_);
 				# don't traverse too deep (Find is super slow on os x)
-				if (($File::Find::name =~ tr!/!!) - $pfxdepth > $project_maxdepth) {
+				local $_ = $File::Find::name;
+				if (tr!/!! - $pfxdepth > $project_maxdepth) {
 					$File::Find::prune = 1;
 					return;
 				}
-- 
Shawn.
Previous: Luke LuNext: Luke Lu
Message 2 of 5 in “gitweb: speed up project listing on large work trees by limiting find depth”
  1. gitweb: speed up project listing on large work trees by limiting find depthLuke Lu, Oct 17, 2007
  2. Shawn O. PearceOct 17, 2007
  3. Luke LuOct 17, 2007
  4. Shawn O. PearceOct 17, 2007
  5. Shawn O. PearceOct 17, 2007

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