--- a/lib/CrashTest/Plugin/StackFilter/FileLink.pm	Mon Jul 17 22:51:43 2023 +0200
+++ b/lib/CrashTest/Plugin/StackFilter/FileLink.pm	Mon Jul 17 22:52:42 2023 +0200
@@ -36,21 +36,36 @@
     my ($self, $scm, $repo) = @_;
 
     my $linkconf = "$scm:$repo";
-    if(defined($self->{_template_cache}->{$linkconf})) {
+    if(exists($self->{_template_cache}->{$linkconf})) {
         return $self->{_template_cache}->{$linkconf};
     }
-    my $template = $self->config->{WebInterface}->{ScmLinks}->{$linkconf};
+    my $template = $self->config->{WebInterface}->{ScmLinks}->{$linkconf} // undef;
+
+    # try striping repo path elements until a match
+    if(!defined($template)) {
+        my $rpath = $repo;
+        while($rpath =~ m:^(.+)/[^/]+[/]?$:xms) {
+            $rpath = $1;
+            $linkconf = "$scm:$rpath";
+            $template = $self->config->{WebInterface}->{ScmLinks}->{$linkconf} // undef;
+            if(defined($template)) {
+                # keep full repo in cache (avoid loop)
+                $linkconf = "$scm:$repo";
+                break;
+            }
+        }
+    }
 
     # try the generic repository type
     if(!defined($template)) {
         $linkconf = $scm;
-        if(defined($self->{_template_cache}->{$linkconf})) {
+        if(exists($self->{_template_cache}->{$linkconf})) {
             return $self->{_template_cache}->{$linkconf};
         }
-        $template = $self->config->{WebInterface}->{ScmLinks}->{$linkconf};
+        $template = $self->config->{WebInterface}->{ScmLinks}->{$linkconf} // undef;
     }
 
-    return undef if !defined($template);
+    return if !defined($template);
 
     $self->app->log->debug("Building template for $linkconf");