fix: invalid feature_sets_path

Author: eigen-value

__init__.py

@@ -128,8 +128,7 @@ def update_external_rigs(self):
 
         feature_sets_path = os.path.join(bpy.utils.script_path_user(), 'rigify')
 
-        invalid_path = not os.path.exists(feature_sets_path)
-        if not invalid_path:
+        if os.path.exists(feature_sets_path):
             if feature_sets_path not in sys.path:
                 sys.path.append(feature_sets_path)
             # Reload rigs

feature_sets.py

@@ -27,8 +27,9 @@ def feature_set_items(scene, context):
     feature_sets_path = os.path.join(
         bpy.utils.script_path_user(), 'rigify')
     items = [('all',)*3, ('rigify',)*3, ]
-    for fs in os.listdir(feature_sets_path):
-        items.append((fs,)*3)
+    if os.path.exists(feature_sets_path):
+        for fs in os.listdir(feature_sets_path):
+            items.append((fs,)*3)
 
     return items
 
@@ -82,7 +83,8 @@ def execute(self, context):
         addon_prefs = context.user_preferences.addons[__package__].preferences
 
         rigify_config_path = os.path.join(bpy.utils.script_path_user(), 'rigify')
-        rmtree(os.path.join(rigify_config_path, self.featureset))
+        if os.path.exists(os.path.join(rigify_config_path, self.featureset)):
+            rmtree(os.path.join(rigify_config_path, self.featureset))
 
         addon_prefs.update_external_rigs()
         return {'FINISHED'}

ui.py

@@ -22,13 +22,12 @@
 from bpy.props import StringProperty
 from mathutils import Color
 
-from .utils import get_resource, MetarigError
+from .utils import MetarigError
 from .utils import write_metarig, write_widget
 from .utils import unique_name
 from .utils import upgradeMetarigTypes, outdated_types
 from .utils import get_keyed_frames, bones_in_frame
 from .utils import overwrite_prop_animation
-from .utils import RIG_DIR
 from .rigs.utils import get_limb_generated_names
 from . import rig_lists
 from . import template_list
@@ -129,7 +128,7 @@ def draw(self, context):
 
             col.separator()
             row = col.row()
-            row.active = len(context.object.data.rigify_templates) != 0 or len(template_list.template_list) == 1
+            row.active = len(context.object.data.rigify_templates) != 0 or len(template_list.templates) == 1
             row.operator("pose.rigify_generate", text="Generate Rig", icon='POSE_HLT')
 
             row.enabled = enable_generate_and_advanced