Fix: Make relative paths for UNC on Windows (#34)

* fix already relative paths

* added OSError exception for make relative path

* refactor for loops in one

* fix not statement with filepath.startswith

* refactor list concat with itertools chain

---------

Co-authored-by: kaamaurice <kaalium@gmail.com>

openpype/hosts/blender/utility_scripts/make_paths_relative.py

@@ -1,5 +1,7 @@
 """Make all paths relative."""
 
+from pathlib import Path
+from itertools import chain
 import bpy
 
 from openpype.lib.log import Logger
@@ -9,6 +11,20 @@
  log.debug(
  f"Blend file | All paths converted to relative: {bpy.data.filepath}"
  )
+ # Resolve path from source filepath with the relative filepath
+ for datablock in chain(bpy.data.libraries, bpy.data.images):
+ try:
+ if (
+ datablock
+ and not datablock.is_library_indirect
+ and not datablock.filepath.startswith("//")
+ ):
+ datablock.filepath = bpy.path.relpath(
+ str(Path(datablock.filepath).resolve()),
+ start=str(Path(bpy.data.filepath).parent.resolve()),
+ )
+ except (RuntimeError, ReferenceError, ValueError, OSError) as e:
+ log.error(e)
 
  bpy.ops.file.make_paths_relative()
  bpy.ops.wm.save_mainfile()