gitweb: Allow forks with project list file

Make it possible to use the forks feature even when
reading the list of projects from a file, by creating
a list of known prefixes as we go. Forks have to be
listed after the main project in order to be recognised
as such.

Signed-off-by: Frank Lichtenheld <frank@lichtenheld.de>
Acked-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index e49eb91d69c2344163ab9477883777476c789bc7..01a10b320e4a6b29bed70b40e2166a06496ac70c 100755 (executable)
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -176,8 +176,8 @@ our %feature = (
        # projects matching $projname/*.git will not be shown in the main
        # projects list, instead a '+' mark will be added to $projname
        # there and a 'forks' view will be enabled for the project, listing
-       # all the forks. This feature is supported only if project list
-       # is taken from a directory, not file.
+       # all the forks. If project list is taken from a file, forks have
+       # to be listed after the main project.
 
        # To enable system wide have in $GITWEB_CONFIG
        # $feature{'forks'}{'default'} = [1];
@@ -1047,6 +1047,8 @@ sub git_get_projects_list {
        $filter ||= '';
        $filter =~ s/\.git$//;
 
+       my ($check_forks) = gitweb_check_feature('forks');
+
        if (-d $projects_list) {
                # search in directory
                my $dir = $projects_list . ($filter ? "/$filter" : '');
@@ -1054,8 +1056,6 @@ sub git_get_projects_list {
                $dir =~ s!/+$!!;
                my $pfxlen = length("$dir");
 
-               my ($check_forks) = gitweb_check_feature('forks');
-
                File::Find::find({
                        follow_fast => 1, # follow symbolic links
                        dangling_symlinks => 0, # ignore dangling symlinks, silently
@@ -1081,7 +1081,9 @@ sub git_get_projects_list {
                # 'git%2Fgit.git Linus+Torvalds'
                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
+               my %paths;
                open my ($fd), $projects_list or return;
+       PROJECT:
                while (my $line = <$fd>) {
                        chomp $line;
                        my ($path, $owner) = split ' ', $line;
@@ -1094,11 +1096,27 @@ sub git_get_projects_list {
                                # looking for forks;
                                my $pfx = substr($path, 0, length($filter));
                                if ($pfx ne $filter) {
-                                       next;
+                                       next PROJECT;
                                }
                                my $sfx = substr($path, length($filter));
                                if ($sfx !~ /^\/.*\.git$/) {
-                                       next;
+                                       next PROJECT;
+                               }
+                       } elsif ($check_forks) {
+                       PATH:
+                               foreach my $filter (keys %paths) {
+                                       # looking for forks;
+                                       my $pfx = substr($path, 0, length($filter));
+                                       if ($pfx ne $filter) {
+                                               next PATH;
+                                       }
+                                       my $sfx = substr($path, length($filter));
+                                       if ($sfx !~ /^\/.*\.git$/) {
+                                               next PATH;
+                                       }
+                                       # is a fork, don't include it in
+                                       # the list
+                                       next PROJECT;
                                }
                        }
                        if (check_export_ok("$projectroot/$path")) {
@@ -1106,7 +1124,9 @@ sub git_get_projects_list {
                                        path => $path,
                                        owner => to_utf8($owner),
                                };
-                               push @list, $pr
+                               push @list, $pr;
+                               (my $forks_path = $path) =~ s/\.git$//;
+                               $paths{$forks_path}++;
                        }
                }
                close $fd;