[Bf-extensions-cvs] [fe12f8b9] master: Fix T77022: node wranger error with texture files on different drives

[Iyad Ahmed]

Commit: fe12f8b97589baf56bf02a53cd73fc495a89909f
Author: Iyad Ahmed
Date:   Tue Aug 24 18:40:55 2021 +0200
Branches: master
https://developer.blender.org/rBAfe12f8b97589baf56bf02a53cd73fc495a89909f

Fix T77022: node wranger error with texture files on different drives

Principled texture setup with relative path option would lead to this,
silently use an absolute path instead like other Blender operators.

Differential Revision: https://developer.blender.org/D12221

===================================================================

M	node_wrangler.py

===================================================================

diff --git a/node_wrangler.py b/node_wrangler.py
index 09d9b06f..4b77d109 100644
--- a/node_wrangler.py
+++ b/node_wrangler.py
@@ -3176,7 +3176,7 @@ class NWAddPrincipledSetup(Operator, NWBase, ImportHelper):
 
     relative_path: BoolProperty(
         name='Relative Path',
-        description='Select the file relative to the blend file',
+        description='Set the file path relative to the blend file, when possible',
         default=True
     )
 
@@ -3276,10 +3276,10 @@ class NWAddPrincipledSetup(Operator, NWBase, ImportHelper):
         import_path = self.directory
         if self.relative_path:
             if bpy.data.filepath:
-                import_path = bpy.path.relpath(self.directory)
-            else:
-                self.report({'WARNING'}, 'Relative paths cannot be used with unsaved scenes!')
-                print('Relative paths cannot be used with unsaved scenes!')
+                try:
+                    import_path = bpy.path.relpath(self.directory)
+                except ValueError:
+                    pass
 
         # Add found images
         print('\nMatched Textures:')