fix(auto_export): first draft, working ! but horribly convoluted solution to the correct reseting of change detection state

tools/gltf_auto_export/__init__.py

@@ -15,7 +15,7 @@ from pathlib import Path
 import json
 import bpy
 from bpy.types import Context
-from bpy.props import (StringProperty, BoolProperty, PointerProperty)
+from bpy.props import (StringProperty, BoolProperty, IntProperty, PointerProperty)
 
 # from .extension import ExampleExtensionProperties, GLTF_PT_UserExtensionPanel, unregister_panel
 
@@ -133,6 +133,8 @@ def cleanup_file():
 
 def glTF2_post_export_callback(data):
     #print("post_export", data)
+    bpy.context.window_manager.auto_export_tracker.export_finished()
+
     gltf_settings_backup = bpy.context.window_manager.gltf_settings_backup
     gltf_filepath = data["gltf_filepath"]
     gltf_export_id = data['gltf_export_id']
@@ -189,6 +191,10 @@ def register():
     bpy.types.TOPBAR_MT_file_export.append(menu_func_import)
     bpy.types.WindowManager.gltf_settings_backup = StringProperty(default="")
 
+    # FIXME: perhaps move this to tracker
+    bpy.types.WindowManager.exports_count = IntProperty(default=0)
+
+
     """bpy.utils.register_class(AutoExportExtensionProperties)
     bpy.types.Scene.AutoExportExtensionProperties = bpy.props.PointerProperty(type=AutoExportExtensionProperties)"""
 
@@ -201,6 +207,7 @@ def unregister():
     bpy.app.handlers.save_post.remove(post_save)
 
     """bpy.utils.unregister_class(AutoExportExtensionProperties)"""
+    del bpy.types.WindowManager.exports_count
 
 if "gltf_auto_export" == "__main__":
     register()

tools/gltf_auto_export/auto_export/auto_export.py

@@ -107,6 +107,13 @@ def auto_export(changes_per_scene, changed_export_parameters, addon_prefs):
                 export_materials(collections, library_scenes, folder_path, addon_prefs)
 
 
+            main_scenes_to_export = [scene_name for scene_name in main_scene_names if not export_change_detection or changed_export_parameters or scene_name in changes_per_scene.keys() or not check_if_blueprint_on_disk(scene_name, export_levels_path, gltf_extension)]
+
+            bpy.context.window_manager.exports_count = len(collections_to_export)
+            bpy.context.window_manager.exports_count += len(main_scenes_to_export)
+            if export_materials_library:
+                bpy.context.window_manager.exports_count += 1
+
             print("--------------")
             print("collections:               all:", collections)
             print("collections:           changed:", changed_collections)
@@ -114,6 +121,9 @@ def auto_export(changes_per_scene, changed_export_parameters, addon_prefs):
             print("collections:        in library:", library_collections)
             print("collections:         to export:", collections_to_export)
             print("collections:         per_scene:", collections_per_scene)
+            print("--------------")
+            print("MAIN SCENES TO EXPORT", main_scenes_to_export)
+
 
             # backup current active scene
             old_current_scene = bpy.context.scene

tools/gltf_auto_export/auto_export/operators.py

@@ -206,6 +206,9 @@ class AutoExportGLTF(Operator, AutoExportGltfAddonPreferences, ExportHelper):
                 params_changed = self.did_export_settings_change()
                 auto_export(changes_per_scene, params_changed, self)
             # cleanup
+            if bpy.context.window_manager.exports_count == 0: # we need this in case there was nothing to export, to make sure change detection is enabled again
+                print("YOLOOO")
+                bpy.context.window_manager.auto_export_tracker.enable_change_detection()
             #bpy.context.window_manager.auto_export_tracker.enable_change_detection()
             # FIXME: wrong logic, this should be called only in an glTF2_post_export_callback
             bpy.app.timers.register(bpy.context.window_manager.auto_export_tracker.enable_change_detection, first_interval=1)

tools/gltf_auto_export/auto_export/tracker.py

@@ -53,7 +53,7 @@ class AutoExportTracker(PropertyGroup):
 
     @classmethod
     def deps_update_handler(cls, scene, depsgraph):
-        # print("change detection enabled", cls.change_detection_enabled)
+        print("change detection enabled", cls.change_detection_enabled)
         active_operator = bpy.context.active_operator
         if active_operator:
             # print("Operator", active_operator.bl_label, active_operator.bl_idname)
@@ -124,3 +124,9 @@ class AutoExportTracker(PropertyGroup):
         self.__class__.change_detection_enabled = True
         return None
 
+    def export_finished(self):
+        print("AAAAAAAAAAAAAAAAAAAAAAAAAAAAAHHHHHHHH export_finished")
+        bpy.context.window_manager.exports_count -= 1
+        if bpy.context.window_manager.exports_count == 0:
+            print("YOLOOO")
+            self.enable_change_detection()

tools/gltf_auto_export/tests/test_change_tracking.py

@@ -133,8 +133,8 @@ def test_export_changed_parameters(setup_data):
     models_library_path = os.path.join(models_path, "library")
     model_library_file_paths = list(map(lambda file_name: os.path.join(models_library_path, file_name), sorted(os.listdir(models_library_path))))
     modification_times_first = list(map(lambda file_path: os.path.getmtime(file_path), model_library_file_paths + [world_file_path]))
-    print("files", model_library_file_paths)
-    print("mod times", modification_times_first)
+    #print("files", model_library_file_paths)
+    #print("mod times", modification_times_first)
 
     auto_export_operator(
         auto_export=True,
@@ -150,7 +150,11 @@ def test_export_changed_parameters(setup_data):
     assert modification_times_no_change == modification_times_first
 
     # now move the main cube & export again
-    bpy.context.window_manager.auto_export_tracker.enable_change_detection() # FIXME: should not be needed, but ..
+    print("----------------")
+    print("main scene change")
+    print("----------------")
+
+    #py.context.window_manager.auto_export_tracker.enable_change_detection() # FIXME: should not be needed, but ..
     bpy.data.objects["Cube"].location = [1, 0, 0]
     
     auto_export_operator(
@@ -169,7 +173,10 @@ def test_export_changed_parameters(setup_data):
 
 
     # now same, but move the cube in the library
+    print("----------------")
     print("library change")
+    print("----------------")
+
     bpy.data.objects["Blueprint1_mesh"].location = [1, 2, 1]
     auto_export_operator(
         auto_export=True,
@@ -186,7 +193,11 @@ def test_export_changed_parameters(setup_data):
     modification_times_first = modification_times
 
     # now same, but using an operator
-    """ bpy.ops.transform.translate(value=(20.0, 0.0, 0.0))
+    print("----------------")
+    print("change using operator")
+    print("----------------")
+
+    bpy.ops.transform.translate(value=(20.0, 0.0, 0.0))
 
     auto_export_operator(
         auto_export=True,
@@ -200,7 +211,7 @@ def test_export_changed_parameters(setup_data):
 
     modification_times = list(map(lambda file_path: os.path.getmtime(file_path), model_library_file_paths + [world_file_path]))
     assert modification_times != modification_times_first
-    modification_times_first = modification_times"""
+    modification_times_first = modification_times