StorageCommands: expose the "mount" command

src/command/StorageCommands.cxx

@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2003-2014 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "StorageCommands.hxx"
+#include "CommandError.hxx"
+#include "protocol/Result.hxx"
+#include "util/Error.hxx"
+#include "client/Client.hxx"
+#include "Partition.hxx"
+#include "Instance.hxx"
+#include "storage/Registry.hxx"
+#include "storage/CompositeStorage.hxx"
+
+CommandResult
+handle_mount(Client &client, gcc_unused int argc, char *argv[])
+{
+	Storage *_composite = client.partition.instance.storage;
+	if (_composite == nullptr) {
+		command_error(client, ACK_ERROR_NO_EXIST, "No database");
+		return CommandResult::ERROR;
+	}
+
+	CompositeStorage &composite = *(CompositeStorage *)_composite;
+
+	const char *const local_uri = argv[1];
+	const char *const remote_uri = argv[2];
+
+	if (*local_uri == 0) {
+		command_error(client, ACK_ERROR_ARG, "Bad mount point");
+		return CommandResult::ERROR;
+	}
+
+	Error error;
+	Storage *storage = CreateStorageURI(remote_uri, error);
+	if (storage == nullptr) {
+		if (error.IsDefined())
+			return print_error(client, error);
+
+		command_error(client, ACK_ERROR_ARG,
+			      "Unrecognized storage URI");
+		return CommandResult::ERROR;
+	}
+
+	composite.Mount(local_uri, storage);
+	return CommandResult::OK;
+}