Confirm removal of packages when uninstalling an application (Bug #29273)
Index: umc/python/appcenter/__init__.py
===================================================================
--- umc/python/appcenter/__init__.py	(Revision 37849)
+++ umc/python/appcenter/__init__.py	(Arbeitskopie)
@@ -172,6 +172,9 @@
 					self.component_manager.remove_app(application)
 					self.package_manager.update()
 					can_continue = False
+			elif can_continue and function in ('uninstall',) and not force:
+				result['remove'] = application.uninstall_dry_run(self.package_manager)
+				can_continue = False
 			result['can_continue'] = can_continue
 			self.finished(request.id, result)
 
Index: umc/python/appcenter/app_center.py
===================================================================
--- umc/python/appcenter/app_center.py	(Revision 37849)
+++ umc/python/appcenter/app_center.py	(Arbeitskopie)
@@ -481,6 +482,16 @@
 
 		return result
 
+	def uninstall_dry_run(self, package_manager):
+		MODULE.info('Invoke uninstall_dry_run')
+		package_manager.reopen_cache()
+		to_uninstall = package_manager.get_packages(self.get('defaultpackages'))
+		for package in to_uninstall:
+			package.mark_delete()
+		packages = [pkg.name for pkg in package_manager.packages() if pkg.is_auto_removable]
+		package_manager.reopen_cache()
+		return packages
+
 	def install(self, package_manager, component_manager, add_component=True):
 		try:
 			# remove all existing component versions