api_dump_remove_refs: prepare API tree for use with to_json($tree)

[pve-common.git] / src / PVE / RESTHandler.pm

diff --git a/src/PVE/RESTHandler.pm b/src/PVE/RESTHandler.pm
index 3f5c7325add04856e9ead8069063a9392c6821a4..5e70503d81d8965f081b2cae9cfee773201cfe8e 100644 (file)
--- a/src/PVE/RESTHandler.pm
+++ b/src/PVE/RESTHandler.pm
@@ -139,6 +139,39 @@ sub api_dump_cleanup_tree {
 
 }
 
+# api_dump_remove_refs: prepare API tree for use with to_json($tree)
+sub api_dump_remove_refs {
+    my ($tree) = @_;
+
+    my $class = ref($tree);
+    return $tree if !$class;
+
+    if ($class eq 'ARRAY') {
+       my $res = [];
+       foreach my $el (@$tree) {
+           push @$res, api_dump_remove_refs($el);
+       }
+       return $res;
+    } elsif ($class eq 'HASH') {
+       my $res = {};
+       foreach my $k (keys %$tree) {
+           if (my $itemclass = ref($tree->{$k})) {
+               if ($itemclass eq 'CODE') {
+                   next if $k eq 'completion';
+               }
+               $res->{$k} = api_dump_remove_refs($tree->{$k});
+           } else {
+               $res->{$k} = $tree->{$k};
+           }
+       }
+       return $res;
+    } elsif ($class eq 'Regexp') {
+       return "$tree"; # return string representation
+    } else {
+       die "unknown class '$class'\n";
+    }
+}
+
 sub api_dump {
     my ($class, $prefix) = @_;