User:Bugman/subsystems

Tracking down subsystems

Script

The following script is for finding all FlightGear dependencies:

Python script: Python script for finding all subsystems within the flightgear and simgear C++ code bases.

This script requires the grep Unix command, which can be installed on any OS. And it must be run with Python3.

#! /usr/bin/env python3

# Python module imports.
import operator
from re import search, split
from subprocess import PIPE, Popen
import sys


# Source code repository paths.
SIMGEAR_PATH = "/flightgear/src/flightgear-simgear"
FLIGHTGEAR_PATH = "/flightgear/src/flightgear-flightgear"


class FindSubsystems:
    """Class for finding all subsystems and subsystem groups."""

    def __init__(self):
        """Find all subsystems and subsystem groups."""

        # Command line options.
        self.xml = False
        if len(sys.argv) == 2 and sys.argv[1] == "--xml":
            self.xml = True

        # SGSubsystem storage lists.
        self.subsystems = [[], [], [], []]
        self.groups = [[], [], [], []]

        # The base objects.
        subsystem_base = Subsystem("SGSubsystem", xml=self.xml)
        group_base = Subsystem("SGSubsystemGroup", base_class=Subsystem("SGSubsystem"), xml=self.xml)

        # Add some problematic non-parsable classes.
        self.subsystems[1].append(Subsystem("FGAISim", base_class=Subsystem("FGInterface", base_class=Subsystem("SGSubsystem")), file_name="src/FDM/SP/AISim.hpp", xml=self.xml))

        # XML start.
        if self.xml:
            print("<subsystems>")

        # Find all SGSubsystem and SGSubsystemGroup derived classes.
        paths = [SIMGEAR_PATH, FLIGHTGEAR_PATH]
        printout = [False, True]
        for i in range(len(paths)):
            self.find_primary(path=paths[i], text="classes", primary=self.subsystems[0], base_name="SGSubsystem", base=subsystem_base, skip=["SGSubsystemGroup"], printout=printout[i])
            self.find_primary(path=paths[i], text="groups", primary=self.groups[0], base_name="SGSubsystemGroup", base=group_base, printout=printout[i])

            self.find_secondary(path=paths[i], text="classes", primary=self.subsystems[0], secondary=self.subsystems[1], printout=printout[i])
            self.find_secondary(path=paths[i], text="groups", primary=self.groups[0], secondary=self.groups[1], printout=printout[i])

            self.find_tertiary(path=paths[i], text="classes", secondary=self.subsystems[1], tertiary=self.subsystems[2], printout=printout[i])
            self.find_tertiary(path=paths[i], text="groups", secondary=self.groups[1], tertiary=self.groups[2], printout=printout[i])

            self.find_quaternary(path=paths[i], text="classes", tertiary=self.subsystems[2], quaternary=self.subsystems[3], printout=printout[i])
            self.find_quaternary(path=paths[i], text="groups", tertiary=self.groups[2], quaternary=self.groups[3], printout=printout[i])

        # Final summary.
        if self.xml:
            print("<total subsystem_classes=\"%i\" subsystem_groups=\"%i\"/>" % (len(self.subsystems[0] + self.subsystems[1] + self.subsystems[2] + self.subsystems[3]), len(self.groups[0] + self.groups[1] + self.groups[2] + self.groups[3])))
        else:
            print("\nTotal: %i subsystem classes." % len(self.subsystems[0] + self.subsystems[1] + self.subsystems[2] + self.subsystems[3]))
            print("Total: %i subsystem groups." % len(self.groups[0] + self.groups[1] + self.groups[2] + self.groups[3]))

        # XML end.
        if self.xml:
            print("</subsystems>")


    def count(self, storage_list):
        """Count the number of subsystems and subsystem groups.

        @param storage_list:    The data structure to count.
        @type storage_list:     list of Subsystem instances
        @return:                The number of subsystems and number of groups.
        @rtype:                 int, int
        """

        # Init.
        subsystems = 0
        groups = 0
        for element in storage_list:
            if element.is_group():
                groups += 1
            else:
                subsystems += 1

        # Return the counts.
        return subsystems, groups


    def find_primary(self, path=None, text=None, primary=None, base_name=None, base=None, skip=[], printout=False):
        """Find all primary subsystems and groups

        @keyword path:      The path to the repository to search through.
        @type path:         str
        @keyword text:      Text identifying subsystems vs. subsystem groups.
        @type text:         str
        @keyword primary:   The primary list of subsystems or groups.
        @type primary:      list of Subsystem instances
        @keyword base_name: The name of the base class.
        @type base_name:    str
        @keyword base:      The base class object.
        @type base:         Subsystem instance
        @keyword skip:      A list of class names to skip.
        @type skip:         list of str
        @keyword printout:  A flag which if True will activate the printout of subsystems.
        @type printout:     bool
        """

        # Find all subsystems or groups.
        for file_name, class_name in self.grep(path=path, base_name=base_name):
            if class_name in skip:
                continue
            primary.append(Subsystem(class_name, base_class=base, file_name=file_name, xml=self.xml))

        # Sort the subsystems by name.
        primary.sort(key=operator.attrgetter('name'))

        # Printout.
        if printout:
            counts = self.count(primary)
            if self.xml:
                print("  <primary_%s subsystems=\"%i\" groups=\"%i\">" % (text, counts[0], counts[1]))
            else:
                print("\nPrimary %s (%i subsystems, %i groups):" % (text, counts[0], counts[1]))
            for subsystem in primary:
                print("    %s" % subsystem)
            if self.xml:
                print("  </primary_%s>" % text)


    def find_secondary(self, path=None, text=None, primary=None, secondary=None, printout=False):
        """Find all secondary subsystems and groups

        @keyword path:      The path to the repository to search through.
        @type path:         str
        @keyword text:      Text identifying subsystems vs. subsystem groups.
        @type text:         str
        @keyword primary:   The primary list of subsystems or groups.
        @type primary:      list of Subsystem instances
        @keyword secondary: The secondary list of subsystems or groups.
        @type secondary:    list of Subsystem instances
        @keyword printout:  A flag which if True will activate the printout of subsystems.
        @type printout:     bool
        """

        # Loop over all primary subsystems.
        for subsystem in primary:
            for file_name, derived_class in self.grep(path=path, base_name=subsystem.name):
                secondary.append(Subsystem(derived_class, base_class=subsystem, file_name=file_name, xml=self.xml))

        # Sort the subsystems by name.
        secondary.sort(key=operator.attrgetter('name'))

        # Printout.
        if printout and secondary:
            counts = self.count(secondary)
            if self.xml:
                print("  <secondary_%s subsystems=\"%i\" groups=\"%i\">" % (text, counts[0], counts[1]))
            else:
                print("\nSecondary %s (%i subsystems, %i groups):" % (text, counts[0], counts[1]))
            for subsystem in secondary:
                print("    %s" % subsystem)
            if self.xml:
                print("  </secondary_%s>" % text)


    def find_tertiary(self, path=None, text=None, secondary=None, tertiary=None, printout=False):
        """Find all tertiary subsystems and groups

        @keyword path:      The path to the repository to search through.
        @type path:         str
        @keyword text:      Text identifying subsystems vs. subsystem groups.
        @type text:         str
        @keyword secondary: The secondary list of subsystems or groups.
        @type secondary:    list of Subsystem instances
        @keyword tertiary:  The tertiary list of subsystems or groups.
        @type tertiary:     list of Subsystem instances
        @keyword printout:  A flag which if True will activate the printout of subsystems.
        @type printout:     bool
        """

        # Loop over all secondary subsystems.
        for subsystem in secondary:
            for file_name, derived_class in self.grep(path=path, base_name=subsystem.name):
                tertiary.append(Subsystem(derived_class, base_class=subsystem, file_name=file_name, xml=self.xml))

        # Sort all subsystems by name.
        tertiary.sort(key=operator.attrgetter('name'))

        # Printout.
        if printout and tertiary:
            counts = self.count(tertiary)
            if self.xml:
                print("  <tertiary_%s subsystems=\"%i\" groups=\"%i\">" % (text, counts[0], counts[1]))
            else:
                print("\nTertiary %s (%i subsystems, %i groups):" % (text, counts[0], counts[1]))
            for subsystem in tertiary:
                print("    %s" % subsystem)
            if self.xml:
                print("  </tertiary_%s>" % text)


    def find_quaternary(self, path=None, text=None, tertiary=None, quaternary=None, printout=False):
        """Find all tertiary subsystems and groups

        @keyword path:          The path to the repository to search through.
        @type path:             str
        @keyword text:          Text identifying subsystems vs. subsystem groups.
        @type text:             str
        @keyword tertiary:      The tertiary list of subsystems or groups.
        @type tertiary:         list of Subsystem instances
        @keyword quaternary:    The quaternary list of subsystems or groups.
        @type quaternary:       list of Subsystem instances
        @keyword printout:      A flag which if True will activate the printout of subsystems.
        @type printout:         bool
        """

        # Loop over all tertiary subsystems.
        for subsystem in tertiary:
            for file_name, derived_class in self.grep(path=path, base_name=subsystem.name):
                quaternary.append(Subsystem(derived_class, base_class=subsystem, file_name=file_name, xml=self.xml))

        # Sort all subsystems by name.
        quaternary.sort(key=operator.attrgetter('name'))

        # Printout.
        if printout and quaternary:
            counts = self.count(quaternary)
            if self.xml:
                print("  <quaternary_%s subsystems=\"%i\" groups=\"%i\">" % (text, counts[0], counts[1]))
            else:
                print("\nQuaternary %s (%i subsystems, %i groups):" % (text, counts[0], counts[1]))
            for subsystem in quaternary:
                print("    %s" % subsystem)
            if self.xml:
                print("  </quaternary_%s>" % text)


    def grep(self, path=None, base_name=None):
        """Generator method for finding all classes derived from the given base name and repository.

        @keyword path:      The path to the repository to search through.
        @type path:         str
        @keyword base_name: The name of the base class.
        @type base_name:    str
        @return:            The source file and the name of the derived class.
        @rtype:             str, str
        """

        # The Unix grep command to run.
        cmd = 'cd %s; grep -rI "public \<%s\>"

All subsystems

The result is:

XML output: A listing of all flightgear and simgear subsystems and subsystem groups.

XML output from the Python script for finding all subsystems within the flightgear and simgear C++ code bases. The error output from the script was redirected and hence not shown below.

<subsystems>
  <primary_classes subsystems="91" groups="0">
    <ADF from="SGSubsystem" in="src/Instrumentation/adf.hxx"/>
    <AirportDynamicsManager from="SGSubsystem" in="src/Airports/airportdynamicsmanager.hxx"/>
    <AirspeedIndicator from="SGSubsystem" in="src/Instrumentation/airspeed_indicator.hxx"/>
    <Altimeter from="SGSubsystem" in="src/Instrumentation/altimeter.hxx"/>
    <AreaSampler from="SGSubsystem" in="src/Environment/terrainsampler.cxx"/>
    <AttitudeIndicator from="SGSubsystem" in="src/Instrumentation/attitude_indicator.hxx"/>
    <Clock from="SGSubsystem" in="src/Instrumentation/clock.hxx"/>
    <CommRadio from="SGSubsystem" in="src/Instrumentation/commradio.hxx"/>
    <Component from="SGSubsystem" in="src/Autopilot/component.hxx"/>
    <DCLGPS from="SGSubsystem" in="src/Instrumentation/dclgps.hxx"/>
    <DME from="SGSubsystem" in="src/Instrumentation/dme.hxx"/>
    <Ephemeris from="SGSubsystem" in="src/Environment/ephemeris.hxx"/>
    <FDMShell from="SGSubsystem" in="src/FDM/fdm_shell.hxx"/>
    <FGAIManager from="SGSubsystem" in="src/AIModel/AIManager.hxx"/>
    <FGATCManager from="SGSubsystem" in="src/ATC/atc_mgr.hxx"/>
    <FGAircraftModel from="SGSubsystem" in="src/Model/acmodel.hxx"/>
    <FGCom from="SGSubsystem" in="src/Network/fgcom.hxx"/>
    <FGControls from="SGSubsystem" in="src/Aircraft/controls.hxx"/>
    <FGDNSClient from="SGSubsystem" in="src/Network/DNSClient.hxx"/>
    <FGElectricalSystem from="SGSubsystem" in="src/Systems/electrical.hxx"/>
    <FGEventInput from="SGSubsystem" in="src/Input/FGEventInput.hxx"/>
    <FGFX from="SGSubsystem" in="docs-mini/README.introduction"/>
    <FGFlightHistory from="SGSubsystem" in="src/Aircraft/FlightHistory.hxx"/>
    <FGHTTPClient from="SGSubsystem" in="src/Network/HTTPClient.hxx"/>
    <FGHttpd from="SGSubsystem" in="src/Network/http/httpd.hxx"/>
    <FGIO from="SGSubsystem" in="src/Main/fg_io.hxx"/>
    <FGInterface from="SGSubsystem" in="src/FDM/flight.hxx"/>
    <FGJoystickInput from="SGSubsystem" in="src/Input/FGJoystickInput.hxx"/>
    <FGKR_87 from="SGSubsystem" in="src/Instrumentation/kr_87.hxx"/>
    <FGKeyboardInput from="SGSubsystem" in="src/Input/FGKeyboardInput.hxx"/>
    <FGLight from="SGSubsystem" in="src/Time/light.hxx"/>
    <FGLogger from="SGSubsystem" in="src/Main/logger.hxx"/>
    <FGMagVarManager from="SGSubsystem" in="src/Environment/magvarmanager.hxx"/>
    <FGMarkerBeacon from="SGSubsystem" in="src/Instrumentation/marker_beacon.hxx"/>
    <FGModelMgr from="SGSubsystem" in="src/Model/modelmgr.hxx"/>
    <FGMouseInput from="SGSubsystem" in="src/Input/FGMouseInput.hxx"/>
    <FGMultiplayMgr from="SGSubsystem" in="src/MultiPlayer/multiplaymgr.hxx"/>
    <FGNasalSys from="SGSubsystem" in="src/Scripting/NasalSys.hxx"/>
    <FGNavRadio from="SGSubsystem" in="src/Instrumentation/navradio.hxx"/>
    <FGPanel from="SGSubsystem" in="utils/fgpanel/FGPanel.hxx"/>
    <FGPanelProtocol from="SGSubsystem" in="utils/fgpanel/FGPanelProtocol.hxx"/>
    <FGPrecipitationMgr from="SGSubsystem" in="src/Environment/precipitation_mgr.hxx"/>
    <FGProperties from="SGSubsystem" in="src/Main/fg_props.hxx"/>
    <FGReplay from="SGSubsystem" in="src/Aircraft/replay.hxx"/>
    <FGRidgeLift from="SGSubsystem" in="src/Environment/ridge_lift.hxx"/>
    <FGRouteMgr from="SGSubsystem" in="src/Autopilot/route_mgr.hxx"/>
    <FGScenery from="SGSubsystem" in="src/Scenery/scenery.hxx"/>
    <FGSoundManager from="SGSubsystem" in="src/Sound/soundmanager.hxx"/>
    <FGSubmodelMgr from="SGSubsystem" in="src/AIModel/submodel.hxx"/>
    <FGTrafficManager from="SGSubsystem" in="src/Traffic/TrafficMgr.hxx"/>
    <FGViewMgr from="SGSubsystem" in="src/Viewer/viewmgr.hxx"/>
    <FGVoiceMgr from="SGSubsystem" in="src/Sound/voice.hxx"/>
    <GPS from="SGSubsystem" in="src/Instrumentation/gps.hxx"/>
    <GSDI from="SGSubsystem" in="src/Instrumentation/gsdi.hxx"/>
    <GUIMgr from="SGSubsystem" in="src/Canvas/gui_mgr.hxx"/>
    <GroundRadar from="SGSubsystem" in="src/Cockpit/groundradar.hxx"/>
    <HUD from="SGSubsystem" in="src/Instrumentation/HUD/HUD.hxx"/>
    <HeadingIndicator from="SGSubsystem" in="src/Instrumentation/heading_indicator.hxx"/>
    <HeadingIndicatorDG from="SGSubsystem" in="src/Instrumentation/heading_indicator_dg.hxx"/>
    <HeadingIndicatorFG from="SGSubsystem" in="src/Instrumentation/heading_indicator_fg.hxx"/>
    <InstVerticalSpeedIndicator from="SGSubsystem" in="src/Instrumentation/inst_vertical_speed_indicator.hxx"/>
    <LayerInterpolateController from="SGSubsystem" in="src/Environment/environment_ctrl.hxx"/>
    <MK_VIII from="SGSubsystem" in="src/Instrumentation/mk_viii.hxx"/>
    <MagCompass from="SGSubsystem" in="src/Instrumentation/mag_compass.hxx"/>
    <MasterReferenceGyro from="SGSubsystem" in="src/Instrumentation/mrg.hxx"/>
    <NavDisplay from="SGSubsystem" in="src/Cockpit/NavDisplay.hxx"/>
    <NavRadio from="SGSubsystem" in="src/Instrumentation/newnavradio.hxx"/>
    <NewGUI from="SGSubsystem" in="src/GUI/new_gui.hxx"/>
    <PerformanceDB from="SGSubsystem" in="src/AIModel/performancedb.hxx"/>
    <PitotSystem from="SGSubsystem" in="src/Systems/pitot.hxx"/>
    <PropertyBasedMgr from="SGSubsystem" in="simgear/props/PropertyBasedMgr.hxx"/>
    <PropertyInterpolationMgr from="SGSubsystem" in="simgear/props/PropertyInterpolationMgr.hxx"/>
    <RadarAltimeter from="SGSubsystem" in="src/Instrumentation/rad_alt.hxx"/>
    <RealWxController from="SGSubsystem" in="src/Environment/realwx_ctrl.hxx"/>
    <SGEventMgr from="SGSubsystem" in="simgear/structure/event_mgr.hxx"/>
    <SGInterpolator from="SGSubsystem" in="simgear/misc/interpolator.hxx"/>
    <SGPerformanceMonitor from="SGSubsystem" in="simgear/structure/SGPerfMon.hxx"/>
    <SGSoundMgr from="SGSubsystem" in="simgear/sound/soundmgr.hxx"/>
    <SGSubsystemMgr from="SGSubsystem" in="simgear/structure/subsystem_mgr.hxx"/>
    <SGTerraSync from="SGSubsystem" in="simgear/scene/tsync/terrasync.hxx"/>
    <SlipSkidBall from="SGSubsystem" in="src/Instrumentation/slip_skid_ball.hxx"/>
    <StaticSystem from="SGSubsystem" in="src/Systems/static.hxx"/>
    <TACAN from="SGSubsystem" in="src/Instrumentation/tacan.hxx"/>
    <TCAS from="SGSubsystem" in="src/Instrumentation/tcas.hxx"/>
    <TimeManager from="SGSubsystem" in="src/Time/TimeManager.hxx"/>
    <Transponder from="SGSubsystem" in="src/Instrumentation/transponder.hxx"/>
    <TurnIndicator from="SGSubsystem" in="src/Instrumentation/turn_indicator.hxx"/>
    <VacuumSystem from="SGSubsystem" in="src/Systems/vacuum.hxx"/>
    <VerticalSpeedIndicator from="SGSubsystem" in="src/Instrumentation/vertical_speed_indicator.hxx"/>
    <View from="SGSubsystem" in="src/Viewer/view.hxx"/>
    <wxRadarBg from="SGSubsystem" in="src/Cockpit/wxradar.hxx"/>
  </primary_classes>
  <primary_groups subsystems="0" groups="8">
    <Autopilot from="SGSubsystemGroup : SGSubsystem" in="src/Autopilot/autopilot.hxx"/>
    <CockpitDisplayManager from="SGSubsystemGroup : SGSubsystem" in="src/Cockpit/cockpitDisplayManager.hxx"/>
    <FGEnvironmentMgr from="SGSubsystemGroup : SGSubsystem" in="src/Environment/environment_mgr.hxx"/>
    <FGInput from="SGSubsystemGroup : SGSubsystem" in="src/Input/input.hxx"/>
    <FGInstrumentMgr from="SGSubsystemGroup : SGSubsystem" in="src/Instrumentation/instrument_mgr.hxx"/>
    <FGSystemMgr from="SGSubsystemGroup : SGSubsystem" in="src/Systems/system_mgr.hxx"/>
    <FGXMLAutopilotGroup from="SGSubsystemGroup : SGSubsystem" in="src/Autopilot/autopilotgroup.hxx"/>
    <TerrainSampler from="SGSubsystemGroup : SGSubsystem" in="src/Environment/terrainsampler.hxx"/>
  </primary_groups>
  <secondary_classes subsystems="28" groups="0">
    <AnalogComponent from="Component : SGSubsystem" in="src/Autopilot/analogcomponent.hxx"/>
    <BasicRealWxController from="RealWxController : SGSubsystem" in="src/Environment/realwx_ctrl.cxx"/>
    <CanvasMgr from="PropertyBasedMgr : SGSubsystem" in="simgear/canvas/CanvasMgr.hxx"/>
    <CommRadioImpl from="CommRadio : SGSubsystem" in="src/Instrumentation/commradio.cxx"/>
    <DigitalComponent from="Component : SGSubsystem" in="src/Autopilot/digitalcomponent.hxx"/>
    <FGACMS from="FGInterface : SGSubsystem" in="src/FDM/SP/ACMS.hxx"/>
    <FGADA from="FGInterface : SGSubsystem" in="src/FDM/SP/ADA.hxx"/>
    <FGAISim from="FGInterface : SGSubsystem" in="src/FDM/SP/AISim.hpp"/>
    <FGBalloonSim from="FGInterface : SGSubsystem" in="src/FDM/SP/Balloon.h"/>
    <FGExternalNet from="FGInterface : SGSubsystem" in="src/FDM/ExternalNet/ExternalNet.hxx"/>
    <FGExternalPipe from="FGInterface : SGSubsystem" in="src/FDM/ExternalPipe/ExternalPipe.hxx"/>
    <FGHIDEventInput from="FGEventInput : SGSubsystem" in="src/Input/FGHIDEventInput.hxx"/>
    <FGJSBsim from="FGInterface : SGSubsystem" in="src/FDM/JSBSim/JSBSim.hxx"/>
    <FGLaRCsim from="FGInterface : SGSubsystem" in="src/FDM/LaRCsim/LaRCsim.hxx"/>
    <FGLinuxEventInput from="FGEventInput : SGSubsystem" in="src/Input/FGLinuxEventInput.hxx"/>
    <FGMacOSXEventInput from="FGEventInput : SGSubsystem" in="src/Input/FGMacOSXEventInput.hxx"/>
    <FGMagicCarpet from="FGInterface : SGSubsystem" in="src/FDM/SP/MagicCarpet.hxx"/>
    <FGNullFDM from="FGInterface : SGSubsystem" in="src/FDM/NullFDM.hxx"/>
    <FGReadablePanel from="FGPanel : SGSubsystem" in="utils/fgpanel/panel_io.hxx"/>
    <FGSoundManager from="SGSoundMgr : SGSubsystem" in="src/Sound/soundmanager.hxx"/>
    <FGUFO from="FGInterface : SGSubsystem" in="src/FDM/UFO.hxx"/>
    <KLN89 from="DCLGPS : SGSubsystem" in="src/Instrumentation/KLN89/kln89.hxx"/>
    <LayerInterpolateControllerImplementation from="LayerInterpolateController : SGSubsystem" in="src/Environment/environment_ctrl.cxx"/>
    <MongooseHttpd from="FGHttpd : SGSubsystem" in="src/Network/http/httpd.cxx"/>
    <NavRadioImpl from="NavRadio : SGSubsystem" in="src/Instrumentation/newnavradio.cxx"/>
    <StateMachineComponent from="Component : SGSubsystem" in="src/Autopilot/autopilot.cxx"/>
    <YASim from="FGInterface : SGSubsystem" in="src/FDM/YASim/YASim.hxx"/>
    <agRadar from="wxRadarBg : SGSubsystem" in="src/Cockpit/agradar.hxx"/>
  </secondary_classes>
  <secondary_groups subsystems="0" groups="2">
    <FGXMLAutopilotGroupImplementation from="FGXMLAutopilotGroup : SGSubsystemGroup : SGSubsystem" in="src/Autopilot/autopilotgroup.cxx"/>
    <TerrainSamplerImplementation from="TerrainSampler : SGSubsystemGroup : SGSubsystem" in="src/Environment/terrainsampler.cxx"/>
  </secondary_groups>
  <tertiary_classes subsystems="6" groups="0">
    <DigitalFilter from="AnalogComponent : Component : SGSubsystem" in="src/Autopilot/digitalfilter.hxx"/>
    <Logic from="DigitalComponent : Component : SGSubsystem" in="src/Autopilot/logic.hxx"/>
    <NoaaMetarRealWxController from="BasicRealWxController : RealWxController : SGSubsystem" in="src/Environment/realwx_ctrl.cxx"/>
    <PIDController from="AnalogComponent : Component : SGSubsystem" in="src/Autopilot/pidcontroller.hxx"/>
    <PISimpleController from="AnalogComponent : Component : SGSubsystem" in="src/Autopilot/pisimplecontroller.hxx"/>
    <Predictor from="AnalogComponent : Component : SGSubsystem" in="src/Autopilot/predictor.hxx"/>
  </tertiary_classes>
  <quaternary_classes subsystems="1" groups="0">
    <FlipFlop from="Logic : DigitalComponent : Component : SGSubsystem" in="src/Autopilot/flipflop.hxx"/>
  </quaternary_classes>
<total subsystem_classes="126" subsystem_groups="10"/>
</subsystems>

Refactoring

To check that all subsystems on a branch have been updated or refactored:

Python script: Python script verifying if all subsystems have been updated.

#! /usr/bin/env python3

# Python module imports.
from subprocess import PIPE, Popen

# Other module imports.
from find_subsystems import FindSubsystems


class ToUpdate:
    """Class for finding all files yet to be updated."""

    def __init__(self):
        """Find all files to be updated."""

        # First find all subsystems.
        subsystems = FindSubsystems()

        # Generate a list of files to skip.
        pipe = Popen("git diff --name-only ..next", shell=True, stdout=PIPE)
        blacklist = []
        for line in pipe.stdout.readlines():
            file_name = line.decode()
            file_name = file_name.strip()
            blacklist.append(file_name)

        # Loop over all derived classes.
        print("\nYet to be updated:")
        for storage_list in subsystems.subsystems + subsystems.groups:
            for subsystem in storage_list:
                if subsystem.file_name not in blacklist:
                    print("    %s: %s" % (subsystem.file_name, subsystem))



# Instantiate the class if run as a script.
if __name__ == "__main__":
    ToUpdate()