Adjust pre-pretense backup strategy

game/persistency.py

@@ -154,6 +154,10 @@ def save_dir() -> Path:
     return base_path() / "Retribution" / "Saves"
 
 
+def pre_pretense_backups_dir() -> Path:
+    return save_dir() / "PrePretenseBackups"
+
+
 def server_port() -> int:
     global _server_port
     return _server_port

game/pretense/pretensemissiongenerator.py

@@ -1,6 +1,5 @@
 from __future__ import annotations
 
-import copy
 import logging
 import pickle
 from datetime import datetime
@@ -20,7 +19,6 @@
 from game.lasercodes.lasercoderegistry import LaserCodeRegistry
 from game.missiongenerator.convoygenerator import ConvoyGenerator
 from game.missiongenerator.environmentgenerator import EnvironmentGenerator
-from game.missiongenerator.flotgenerator import FlotGenerator
 from game.missiongenerator.forcedoptionsgenerator import ForcedOptionsGenerator
 from game.missiongenerator.frontlineconflictdescription import (
     FrontLineConflictDescription,
@@ -29,6 +27,7 @@
 from game.missiongenerator.tgogenerator import TgoGenerator
 from game.missiongenerator.visualsgenerator import VisualsGenerator
 from game.naming import namegen
+from game.persistency import pre_pretense_backups_dir
 from game.pretense.pretenseaircraftgenerator import PretenseAircraftGenerator
 from game.radio.radios import RadioRegistry
 from game.radio.tacan import TacanRegistry
@@ -74,17 +73,16 @@ def __init__(self, game: Game, time: datetime) -> None:
             self.mission.options.load_from_dict(options)
 
     def generate_miz(self, output: Path) -> UnitMap:
-        now = datetime.now()
-        date_time = now.strftime("%Y-%d-%mT%H_%M_%S")
         game_backup_pickle = pickle.dumps(self.game)
+        path = pre_pretense_backups_dir()
+        path.mkdir(parents=True, exist_ok=True)
+        path /= f".pre-pretense-backup.retribution"
         try:
-            with open(
-                self.game.savepath + ".pre-pretense-backup." + date_time, "wb"
-            ) as f:
+            with open(path, "wb") as f:
                 pickle.dump(self.game, f)
         except:
             logging.error(
-                f"Unable to save Pretense pre-generation backup to {self.game.savepath}.pre-pretense-backup.{date_time}"
+                f"Unable to save Pretense pre-generation backup to {path}"
             )
 
         if self.generation_started:

qt_ui/windows/QLiberationWindow.py

@@ -1,6 +1,7 @@
 import logging
 import traceback
 import webbrowser
+from datetime import datetime
 from pathlib import Path
 from typing import Optional
 
@@ -21,6 +22,7 @@
 from game.debriefing import Debriefing
 from game.game import TurnState
 from game.layout import LAYOUTS
+from game.persistency import pre_pretense_backups_dir
 from game.pretense.pretensemissiongenerator import PretenseMissionGenerator
 from game.server import EventStream, GameContext
 from game.server.dependencies import QtCallbacks, QtContext
@@ -322,9 +324,23 @@ def newGame(self):
 
     def newPretenseCampaign(self):
         output = persistency.mission_path_for("pretense_campaign.miz")
-        PretenseMissionGenerator(
-            self.game, self.game.conditions.start_time
-        ).generate_miz(output)
+        try:
+            PretenseMissionGenerator(
+                self.game, self.game.conditions.start_time
+            ).generate_miz(output)
+        except Exception as e:
+            now = datetime.now()
+            date_time = now.strftime("%Y-%d-%mT%H_%M_%S")
+            path = pre_pretense_backups_dir()
+            path.mkdir(parents=True, exist_ok=True)
+            tgt = path / f"pre-pretense-backup_{date_time}.retribution"
+            path /= f".pre-pretense-backup.retribution"
+            if path.exists():
+                with open(path, "rb") as source:
+                    with open(tgt, "wb") as target:
+                        target.write(source.read())
+            raise e
+
         title = "Pretense campaign generated"
         msg = f"A Pretense campaign mission has been successfully generated in {output}"
         QMessageBox.information(QApplication.focusWidget(), title, msg, QMessageBox.Ok)