sculpt: allow for dynamic managed/system state

Until now, the /config/system ROM was not handled by the sculpt manager
but solely managed by the user. Its main purpose was the ability to
reset or power-down the machine by manually modifying the 'state'
attribute. However, down the road, we'd like to enable the sculpt
manager to drive this state, e.g., to implement the multi-staged
loading of drivers, or to drive suspend-resume states.

The support such scenarios, the 'system' state has been moved from
/config/system to /config/managed/system.

repos/gems/run/sculpt.run

@@ -388,7 +388,7 @@ install_config {
 			<service name="ROM" label_last="usb_policy">
 				<child name="config_fs_rom" label="usb"/> </service>
 			<service name="ROM" label_last="system">
-				<child name="config_fs_rom" label="system"/> </service>
+				<child name="config_fs_rom" label="managed/system"/> </service>
 			<service name="ROM" label_last="modem.config">
 				<child name="config_fs_rom" label="managed/modem"/> </service>
 			<service name="ROM" label_last="audio.config">
@@ -720,7 +720,7 @@ set fd [open [managed_config_path depot_query] w]
 puts $fd "<query/>"
 close $fd
 
-foreach config { fonts wifi runtime event_filter } {
+foreach config { fonts wifi runtime event_filter system } {
 	set ingredient [single_ingredient $config "default"]
 	if {$ingredient != ""} {
 		set from [ingredient_path $config $ingredient]

repos/gems/sculpt/leitzentrale/default

@@ -239,6 +239,8 @@
 						<child name="config_fs_report" label="managed -> nic_router"/> </service>
 					<service name="Report" label="fb_drv_config">
 						<child name="config_fs_report" label="managed -> fb_drv"/> </service>
+					<service name="Report" label="system_config">
+						<child name="config_fs_report" label="managed -> system"/> </service>
 					<service name="Report" label="event_filter_config">
 						<child name="config_fs_report" label="managed -> event_filter"/> </service>
 					<service name="Report" label="installation_config">

repos/gems/src/app/sculpt_manager/main.cc

@@ -91,6 +91,14 @@ struct Sculpt::Main : Input_event_handler,
 			handle_input_event(ev); });
 	}
 
+	Managed_config<Main> _system_config {
+		_env, "system", "system", *this, &Main::_handle_system_config };
+
+	void _handle_system_config(Xml_node)
+	{
+		_system_config.try_generate_manually_managed();
+	}
+
 	Signal_handler<Main> _gui_mode_handler {
 		_env.ep(), *this, &Main::_handle_gui_mode };
 

repos/gems/src/app/sculpt_manager/model/runtime_config.h

@@ -340,7 +340,7 @@ class Sculpt::Runtime_config
 				_vimrc     { _r, Type::ROM,         "default vim configuration",      "config -> vimrc" },
 				_fonts     { _r, Type::ROM,         "system font configuration",      "config -> managed/fonts" },
 				_pf_info   { _r, Type::ROM,         "platform information",           "platform_info" },
-				_system    { _r, Type::ROM,         "system status",                  "config -> system" },
+				_system    { _r, Type::ROM,         "system status",                  "config -> managed/system" },
 				_report    { _r, Type::REPORT,      "system reports" },
 				_shape     { _r, Type::REPORT,      "pointer shape",    "shape",     Service::Match_label::LAST },
 				_copy      { _r, Type::REPORT,      "global clipboard", "clipboard", Service::Match_label::LAST },