Fix AutoSave conflicts with BackupManager

 - Move AutoSave out of the plugins. It's a built-in module now.
 - Add enable/disable saving data on CuraApplication.
 - Avoid saving data in backup restore

plugins/AutoSave/AutoSave.py → cura/AutoSave.py

@@ -3,17 +3,13 @@
 
 from PyQt5.QtCore import QTimer
 
-from UM.Extension import Extension
 from UM.Preferences import Preferences
-from UM.Application import Application
-from UM.Resources import Resources
 from UM.Logger import Logger
 
 
-class AutoSave(Extension):
-    def __init__(self):
-        super().__init__()
-
+class AutoSave:
+    def __init__(self, application):
+        self._application = application
         Preferences.getInstance().preferenceChanged.connect(self._triggerTimer)
 
         self._global_stack = None
@@ -26,29 +22,11 @@ class AutoSave(Extension):
 
         self._saving = False
 
-        # At this point, the Application instance has not finished its constructor call yet, so directly using something
-        # like Application.getInstance() is not correct. The initialisation now will only gets triggered after the
-        # application finishes its start up successfully.
-        self._init_timer = QTimer()
-        self._init_timer.setInterval(1000)
-        self._init_timer.setSingleShot(True)
-        self._init_timer.timeout.connect(self.initialize)
-        self._init_timer.start()
-
     def initialize(self):
         # only initialise if the application is created and has started
-        from cura.CuraApplication import CuraApplication
-        if not CuraApplication.Created:
-            self._init_timer.start()
-            return
-        if not CuraApplication.getInstance().started:
-            self._init_timer.start()
-            return
-
         self._change_timer.timeout.connect(self._onTimeout)
-        Application.getInstance().globalContainerStackChanged.connect(self._onGlobalStackChanged)
+        self._application.globalContainerStackChanged.connect(self._onGlobalStackChanged)
         self._onGlobalStackChanged()
-
         self._triggerTimer()
 
     def _triggerTimer(self, *args):
@@ -60,7 +38,7 @@ class AutoSave(Extension):
             self._global_stack.propertyChanged.disconnect(self._triggerTimer)
             self._global_stack.containersChanged.disconnect(self._triggerTimer)
 
-        self._global_stack = Application.getInstance().getGlobalContainerStack()
+        self._global_stack = self._application.getGlobalContainerStack()
 
         if self._global_stack:
             self._global_stack.propertyChanged.connect(self._triggerTimer)
@@ -70,6 +48,6 @@ class AutoSave(Extension):
         self._saving = True # To prevent the save process from triggering another autosave.
         Logger.log("d", "Autosaving preferences, instances and profiles")
 
-        Application.getInstance().saveSettings()
+        self._application.saveSettings()
 
         self._saving = False

cura/Backups/BackupsManager.py

@@ -48,7 +48,9 @@ class BackupsManager:
     def _disableAutoSave(self):
         """Here we try to disable the auto-save plugin as it might interfere with restoring a backup."""
         # TODO: Disable auto-save if possible.
+        CuraApplication.getInstance().setSaveDataEnabled(False)
 
     def _enableAutoSave(self):
         """Re-enable auto-save after we're done."""
         # TODO: Enable auto-save if possible.
+        CuraApplication.getInstance().setSaveDataEnabled(True)

cura/CuraApplication.py

@@ -74,6 +74,7 @@ from cura.Settings.SimpleModeSettingsManager import SimpleModeSettingsManager
 
 from cura.Machines.VariantManager import VariantManager
 
+from .AutoSave import AutoSave
 from . import PlatformPhysics
 from . import BuildVolume
 from . import CameraAnimation
@@ -234,6 +235,8 @@ class CuraApplication(QtApplication):
         self._simple_mode_settings_manager = None
         self._cura_scene_controller = None
         self._machine_error_checker = None
+        self._auto_save = None
+        self._save_data_enabled = True
 
         self._additional_components = {} # Components to add to certain areas in the interface
 
@@ -496,11 +499,14 @@ class CuraApplication(QtApplication):
 
     showPrintMonitor = pyqtSignal(bool, arguments = ["show"])
 
+    def setSaveDataEnabled(self, enabled: bool) -> None:
+        self._save_data_enabled = enabled
+
     ##  Cura has multiple locations where instance containers need to be saved, so we need to handle this differently.
     #
     #   Note that the AutoSave plugin also calls this method.
-    def saveSettings(self, safe_data: bool = True):
-        if not self.started or not safe_data:
+    def saveSettings(self):
+        if not self.started or not self._save_data_enabled:
             # Do not do saving during application start or when data should not be safed on quit.
             return
         ContainerRegistry.getInstance().saveDirtyContainers()
@@ -728,6 +734,9 @@ class CuraApplication(QtApplication):
         self._post_start_timer.timeout.connect(self._onPostStart)
         self._post_start_timer.start()
 
+        self._auto_save = AutoSave(self)
+        self._auto_save.initialize()
+
         self.exec_()
 
     def _onPostStart(self):
@@ -879,6 +888,9 @@ class CuraApplication(QtApplication):
 
         return super().event(event)
 
+    def getAutoSave(self):
+        return self._auto_save
+
     ##  Get print information (duration / material used)
     def getPrintInformation(self):
         return self._print_information

plugins/AutoSave/__init__.py

@@ -1,13 +0,0 @@
-# Copyright (c) 2016 Ultimaker B.V.
-# Cura is released under the terms of the LGPLv3 or higher.
-
-from . import AutoSave
-
-from UM.i18n import i18nCatalog
-catalog = i18nCatalog("cura")
-
-def getMetaData():
-    return {}
-
-def register(app):
-    return { "extension": AutoSave.AutoSave() }

plugins/AutoSave/plugin.json

@@ -1,8 +0,0 @@
-{
-    "name": "Auto Save",
-    "author": "Ultimaker B.V.",
-    "version": "1.0.0",
-    "description": "Automatically saves Preferences, Machines and Profiles after changes.",
-    "api": 4,
-    "i18n-catalog": "cura"
-}