Added 'print_height' daemon command

src/daemon/command_parser_executor.cpp

@@ -99,6 +99,13 @@ bool t_command_parser_executor::set_log_level(const std::vector<std::string>& ar
   return m_executor.set_log_level(l);
 }
 
+bool t_command_parser_executor::print_height(const std::vector<std::string>& args) 
+{
+  if (!args.empty()) return false;
+
+  return m_executor.print_height();
+}
+
 bool t_command_parser_executor::print_block(const std::vector<std::string>& args)
 {
   if (args.empty())

src/daemon/command_parser_executor.h

@@ -30,6 +30,8 @@ public:
 
   bool set_log_level(const std::vector<std::string>& args);
 
+  bool print_height(const std::vector<std::string>& args);
+
   bool print_block(const std::vector<std::string>& args);
 
   bool print_transaction(const std::vector<std::string>& args);

src/daemon/command_server.cpp

@@ -18,6 +18,11 @@ t_command_server::t_command_server(
     , std::bind(&t_command_server::help, this, p::_1)
     , "Show this help"
     );
+  m_command_lookup.set_handler(
+      "print_height"
+    , std::bind(&t_command_parser_executor::print_height, &m_parser, p::_1)
+    , "Print local blockchain height"
+    );
   m_command_lookup.set_handler(
       "print_pl"
     , std::bind(&t_command_parser_executor::print_peer_list, &m_parser, p::_1)

src/daemon/rpc_command_executor.cpp

@@ -189,6 +189,18 @@ bool t_rpc_command_executor::set_log_level(int8_t level) {
   return true;
 }
 
+bool t_rpc_command_executor::print_height() {
+  cryptonote::COMMAND_RPC_GET_HEIGHT::request req;
+  cryptonote::COMMAND_RPC_GET_HEIGHT::response res;
+
+  if (rpc_request(req, res, "/getheight", "Unsuccessful"))
+  {
+    tools::success_msg_writer() << boost::lexical_cast<std::string>(res.height);
+  }
+
+  return true;
+}
+
 bool t_rpc_command_executor::print_block_by_hash(crypto::hash block_hash) {
   cryptonote::COMMAND_RPC_GET_BLOCK_HEADER_BY_HASH::request req;
   cryptonote::COMMAND_RPC_GET_BLOCK_HEADER_BY_HASH::response res;

src/daemon/rpc_command_executor.h

@@ -34,6 +34,8 @@ public:
   bool print_blockchain_info(uint64_t start_block_index, uint64_t end_block_index);
 
   bool set_log_level(int8_t level);
+  
+  bool print_height();
 
   bool print_block_by_hash(crypto::hash block_hash);
 
@@ -51,6 +53,7 @@ public:
 
   bool stop_daemon();
 
+
 private:
   template <typename T_req, typename T_res>
   bool json_rpc_request(