Do not index files starting with git:

src/message_handler.cc

@@ -146,4 +146,8 @@ void EmitSemanticHighlighting(QueryDatabase* db,
   for (auto& entry : grouped_symbols)
     out.params.symbols.push_back(entry.second);
   IpcManager::WriteStdout(IpcId::CqueryPublishSemanticHighlighting, out);
-}
+}
+
+bool ShouldIgnoreFileForIndexing(const std::string& path) {
+  return StartsWith(path, "git:");
+}

src/message_handler.h

@@ -77,4 +77,6 @@ void EmitInactiveLines(WorkingFile* working_file,
 void EmitSemanticHighlighting(QueryDatabase* db,
                               SemanticHighlightSymbolCache* semantic_cache,
                               WorkingFile* working_file,
-                              QueryFile* file);
+                              QueryFile* file);
+
+bool ShouldIgnoreFileForIndexing(const std::string& path);

src/messages/text_document_did_open.cc

@@ -24,6 +24,9 @@ struct TextDocumentDidOpenHandler
 
     Timer time;
     std::string path = request->params.textDocument.uri.GetPath();
+    if (ShouldIgnoreFileForIndexing(path))
+      return;
+
     WorkingFile* working_file =
         working_files->OnOpen(request->params.textDocument);
     optional<std::string> cached_file_contents =
@@ -54,4 +57,4 @@ struct TextDocumentDidOpenHandler
   }
 };
 REGISTER_MESSAGE_HANDLER(TextDocumentDidOpenHandler);
-}  // namespace
+}  // namespace

src/messages/text_document_did_save.cc

@@ -22,6 +22,9 @@ struct TextDocumentDidSaveHandler
     : BaseMessageHandler<Ipc_TextDocumentDidSave> {
   void Run(Ipc_TextDocumentDidSave* request) override {
     std::string path = request->params.textDocument.uri.GetPath();
+    if (ShouldIgnoreFileForIndexing(path))
+      return;
+
     // Send out an index request, and copy the current buffer state so we
     // can update the cached index contents when the index is done.
     //
@@ -43,4 +46,4 @@ struct TextDocumentDidSaveHandler
   }
 };
 REGISTER_MESSAGE_HANDLER(TextDocumentDidSaveHandler);
-}  // namespace
+}  // namespace