[PATCHv2 3/8] gitweb: Faster project search

[Jakub Narebski <jnareb@gmail.com>]

Before searching by some field the information we search for must be
filled in.  For this fill_project_list_info() was enhanced in previous
commit to take additional parameters which part of projects info to
fill.  This way we can limit doing expensive calculations (like
running git-for-each-ref to get 'age' / "Last changed" info) only to
projects which we will show as search results.

With this commit the number of git commands used to generate search
results is 2*<matched projects> + 1, and depends on number of matched
projects rather than number of all projects (all repositories).

Note: this is 'git for-each-ref' to find last activity, and 'git config'
for each project, and 'git --version' once.

Signed-off-by: Jakub Narebski <jnareb@gmail.com>
---
search_projects_list() now pre-fills required parts of project info by
itself, so running fill_project_list_info() before calling it is no
longer necessary and actually you should not do it.

No changes from v1

 gitweb/gitweb.perl |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index cae71f5..cc2bd6d 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -2987,6 +2987,10 @@ sub search_projects_list {
 	return @$projlist
 		unless ($tagfilter || $searchtext);
 
+	# searching projects require filling to be run before it;
+	fill_project_list_info($projlist,
+	                       $tagfilter  ? 'ctags' : (),
+	                       $searchtext ? ('path', 'descr') : ());
 	my @projects;
  PROJECT:
 	foreach my $pr (@$projlist) {
@@ -5390,12 +5394,13 @@ sub git_project_list_body {
 	# filtering out forks before filling info allows to do less work
 	@projects = filter_forks_from_projects_list(\@projects)
 		if ($check_forks);
-	@projects = fill_project_list_info(\@projects);
-	# searching projects require filling to be run before it
+	# search_projects_list pre-fills required info
 	@projects = search_projects_list(\@projects,
 	                                 'searchtext' => $searchtext,
 	                                 'tagfilter'  => $tagfilter)
 		if ($tagfilter || $searchtext);
+	# fill the rest
+	@projects = fill_project_list_info(\@projects);
 
 	$order ||= $default_projects_order;
 	$from = 0 unless defined $from;
-- 
1.7.9