gitweb: Show '...' links in "summary" view only if there are more items

Show "..." links in "summary" view to shortlog, heads (if there are
any), and tags (if there are any) only if there are more items to show
than shown already.

This means that "..." link is shown below shortened shortlog if there
are more than 16 commits, "..." link below shortened heads list if
there are more than 16 heads refs (16 branches), "..." link below
shortened tags list if there are more than 16 tags.

Modified patch from Jakub to to apply cleanly to master, also preform
the same "..." link logic to the forks list.

Signed-off-by: Jakub Narebski <redacted>
Signed-off-by: Robert Fitzsimons <redacted>
Signed-off-by: Junio C Hamano <redacted>

diff --git a/gitweb.perl b/gitweb.perl
index 4ddda471bae6efde3ac9a499829f9e2a80bd578a4c2361347caaa23c54e13a2e..d58d4013d6fceb6fa86d0377cf7905b451993ec4785db4208a6c5c77443a9021 100755 (executable)
--- a/gitweb.perl
+++ b/gitweb.perl
@@ -2916,8 +2916,10 @@ sub git_summary {
        my $owner = git_get_project_owner($project);
 
        my $refs = git_get_references();
-       my @taglist  = git_get_tags_list(15);
-       my @headlist = git_get_heads_list(15);
+       # These get_*_list functions return one more to allow us to see if
+       # there are more ...
+       my @taglist  = git_get_tags_list(16);
+       my @headlist = git_get_heads_list(16);
        my @forklist;
        my ($check_forks) = gitweb_check_feature('forks');
 
@@ -2953,6 +2955,8 @@ sub git_summary {
                }
        }
 
+       # we need to request one more than 16 (0..15) to check if
+       # those 16 are all
        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
                git_get_head_hash($project), "--"
                or die_error(undef, "Open git-rev-list failed");
@@ -2960,17 +2964,20 @@ sub git_summary {
        close $fd;
        git_print_header_div('shortlog');
        git_shortlog_body(\@revlist, 0, 15, $refs,
+                         $#revlist <=  15 ? undef :
                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
 
        if (@taglist) {
                git_print_header_div('tags');
                git_tags_body(\@taglist, 0, 15,
+                             $#taglist <=  15 ? undef :
                              $cgi->a({-href => href(action=>"tags")}, "..."));
        }
 
        if (@headlist) {
                git_print_header_div('heads');
                git_heads_body(\@headlist, $head, 0, 15,
+                              $#headlist <= 15 ? undef :
                               $cgi->a({-href => href(action=>"heads")}, "..."));
        }