Add AdhocCommandHandlers::add_command to simplify the usage of this class

And make things a little bit clearer

louloulibs/xmpp/adhoc_commands_handler.cpp

@@ -15,9 +15,9 @@ const std::map<const std::string, const AdhocCommand>& AdhocCommandsHandler::get
   return this->commands;
 }
 
-std::map<const std::string, const AdhocCommand>& AdhocCommandsHandler::get_commands()
+void AdhocCommandsHandler::add_command(std::string name, AdhocCommand command)
 {
-  return this->commands;
+  this->commands.emplace(std::make_pair(std::move(name), std::move(command)));
 }
 
 XmlNode AdhocCommandsHandler::handle_request(const std::string& executor_jid, const std::string& to, XmlNode command_node)

louloulibs/xmpp/adhoc_commands_handler.hpp

@@ -31,9 +31,9 @@ public:
    */
   const std::map<const std::string, const AdhocCommand>& get_commands() const;
   /**
-   * This one can be used to add new commands.
+   * Add a command into the list, associated with the given name
    */
-  std::map<const std::string, const AdhocCommand>& get_commands();
+  void add_command(std::string name, AdhocCommand command);
   /**
    * Find the requested command, create a new session or use an existing
    * one, and process the request (provide a new form, an error, or a

src/xmpp/biboumi_component.cpp

@@ -56,35 +56,24 @@ BiboumiComponent::BiboumiComponent(std::shared_ptr<Poller> poller, const std::st
   this->stanza_handlers.emplace("iq",
                                 std::bind(&BiboumiComponent::handle_iq, this,std::placeholders::_1));
 
-  this->adhoc_commands_handler.get_commands() = {
-    {"ping", AdhocCommand({&PingStep1}, "Do a ping", false)},
-    {"hello", AdhocCommand({&HelloStep1, &HelloStep2}, "Receive a custom greeting", false)},
-    {"disconnect-user", AdhocCommand({&DisconnectUserStep1, &DisconnectUserStep2}, "Disconnect selected users from the gateway", true)},
-    {"disconnect-from-irc-servers", AdhocCommand({&DisconnectUserFromServerStep1, &DisconnectUserFromServerStep2, &DisconnectUserFromServerStep3}, "Disconnect from the selected IRC servers", false)},
-    {"reload", AdhocCommand({&Reload}, "Reload biboumi’s configuration", true)}
-  };
+  this->adhoc_commands_handler.add_command("ping", {{&PingStep1}, "Do a ping", false});
+  this->adhoc_commands_handler.add_command("hello", {{&HelloStep1, &HelloStep2}, "Receive a custom greeting", false});
+  this->adhoc_commands_handler.add_command("disconnect-user", {{&DisconnectUserStep1, &DisconnectUserStep2}, "Disconnect selected users from the gateway", true});
+  this->adhoc_commands_handler.add_command("hello", {{&HelloStep1, &HelloStep2}, "Receive a custom greeting", false});
+  this->adhoc_commands_handler.add_command("reload", {{&Reload}, "Reload biboumi’s configuration", true});
 
 #ifdef USE_DATABASE
   AdhocCommand configure_server_command({&ConfigureIrcServerStep1, &ConfigureIrcServerStep2}, "Configure a few settings for that IRC server", false);
   AdhocCommand configure_global_command({&ConfigureGlobalStep1, &ConfigureGlobalStep2}, "Configure a few settings", false);
+
   if (!Config::get("fixed_irc_server", "").empty())
-    this->adhoc_commands_handler.get_commands().emplace(std::make_pair("configure",
-                                                                       configure_server_command));
+    this->adhoc_commands_handler.add_command("configure", configure_server_command);
   else
-    this->adhoc_commands_handler.get_commands().emplace(std::make_pair("configure",
-                                                                       configure_global_command));
-#endif
+    this->adhoc_commands_handler.add_command("configure", configure_global_command);
 
-  this->irc_server_adhoc_commands_handler.get_commands() = {
-#ifdef USE_DATABASE
-    {"configure", configure_server_command},
-#endif
-  };
-  this->irc_channel_adhoc_commands_handler.get_commands() = {
-#ifdef USE_DATABASE
-    {"configure", AdhocCommand({&ConfigureIrcChannelStep1, &ConfigureIrcChannelStep2}, "Configure a few settings for that IRC channel", false)},
+  this->irc_server_adhoc_commands_handler.add_command("configure", configure_server_command);
+  this->irc_channel_adhoc_commands_handler.add_command("configure", {{&ConfigureIrcChannelStep1, &ConfigureIrcChannelStep2}, "Configure a few settings for that IRC channel", false});
 #endif
-  };
 }
 
 void BiboumiComponent::shutdown()