kde-projects: Improve error message somewhat.

This improves the error message encountered with mal-formed XML in the
kde-projects database, at least a little bit.

BUG:304813
FIXED-IN:1.16

kdesrc-build

@@ -860,9 +860,14 @@ sub expandXMLModules
         return @xmlResults;
     };
 
-    my @results = map { &$filter($_) } (@modules);
+    # eval in case the XML processor throws an exception.
+    undef $@;
+    my @results = eval { map { &$filter($_) } (@modules) };
 
-    if ($repositoryMetadataRequired) {
+    if ($@) {
+        croak_runtime("The XML for the KDE Project database could not be understood: $@");
+    }
+    elsif ($repositoryMetadataRequired) {
         my $repoMetadataModule = ksb::Module->new($ctx, 'kde-build-metadata');
         $repoMetadataModule->setScmType('metadata');
 

modules/ksb/KDEXMLReader.pm

@@ -70,7 +70,9 @@ sub getModulesForProject
             },
     );
 
-    my $result = $parser->parse($self->inputHandle());
+    # Will die if the XML is not well-formed.
+    $parser->parse($self->inputHandle());
+
     return @modules;
 }