Fix issues in the client.

client.d

@@ -57,6 +57,8 @@ int main(string[] args)
 		return 1;
 	}
 
+	AutocompleteRequest request;
+
 	if (help)
 	{
 		printHelp(args[0]);
@@ -64,7 +66,6 @@ int main(string[] args)
 	}
 	else if (shutdown || clearCache)
 	{
-		AutocompleteRequest request;
 		if (shutdown)
 		request.kind = RequestKind.shutdown;
 		else if (clearCache)
@@ -73,6 +74,19 @@ int main(string[] args)
 		scope (exit) { socket.shutdown(SocketShutdown.BOTH); socket.close(); }
 		return sendRequest(socket, request) ? 0 : 1;
 	}
+	else if (importPaths.length > 0)
+	{
+		request.kind |= RequestKind.addImport;
+		request.importPaths = importPaths.map!(a => absolutePath(a)).array;
+		if (cursorPos == size_t.max)
+		{
+			TcpSocket socket = createSocket(port);
+			scope (exit) { socket.shutdown(SocketShutdown.BOTH); socket.close(); }
+			if (!sendRequest(socket, request))
+				return 1;
+			return 0;
+		}
+	}
 	else if (cursorPos == size_t.max)
 	{
 		// cursor position is a required argument
@@ -107,19 +121,11 @@ int main(string[] args)
 		f.rawRead(sourceCode);
 	}
 
-	// Create message
-	AutocompleteRequest request;
 	request.fileName = fileName;
 	request.importPaths = importPaths;
 	request.sourceCode = sourceCode;
 	request.cursorPosition = cursorPos;
 
-	if (importPaths.length > 0)
-	{
-		request.kind |= RequestKind.addImport;
-		request.importPaths = importPaths.map!(a => absolutePath(a)).array;
-	}
-
 	if (symbolLocation)
 		request.kind |= RequestKind.symbolLocation;
 	else if (doc)

modulecache.d

@@ -141,7 +141,10 @@ struct ModuleCache
 			import std.stdio;
 			import std.typecons;
 			File f = File(cachedLocation);
-			ubyte[] source = cast(ubyte[]) Mallocator.it.allocate(cast(size_t)f.size);
+			immutable fileSize = cast(size_t)f.size;
+			if (fileSize == 0)
+				return symbols;
+			ubyte[] source = cast(ubyte[]) Mallocator.it.allocate(fileSize);
 			f.rawRead(source);
 			LexerConfig config;
 			config.fileName = cachedLocation;

server.d

@@ -145,8 +145,6 @@ int main(string[] args)
 
 		AutocompleteRequest request;
 		msgpack.unpack(buffer[size_t.sizeof .. bytesReceived], request);
-		if (request.kind & RequestKind.addImport)
-			ModuleCache.addImportPaths(request.importPaths);
 		if (request.kind & RequestKind.clearCache)
 		{
 			Log.info("Clearing cache.");
@@ -157,6 +155,8 @@ int main(string[] args)
 			Log.info("Shutting down.");
 			break serverLoop;
 		}
+		if (request.kind & RequestKind.addImport)
+			ModuleCache.addImportPaths(request.importPaths);
 		else if (request.kind & RequestKind.autocomplete)
 		{
 			Log.info("Getting completions");