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Maniphest T38924

wm.link_append() never appends despite link=False
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Description

System Information
Windows 7

Blender Version
Broken: 2.69 (and at least 2.67, 2.65, 2.57)

Short description of error
bpy.ops.wm.link_append() called from script ignores the link-argument and always links. If you try it with a scene, you can't even make it local in UI afterwards. It works fine via File / Link/Append

Exact steps for others to reproduce the error

Example code:

import bpy

bpy.ops.wm.link_append(
filepath= "//slave.blend",
filename= "Scene",
directory= "C:/Program Files/Blender Foundation/slave.blend/Scene/",
link=False,
relative_path=True)

Revisions and Commits

rB Blender
rB1eb13519768f Fix T38924: wm.link_append() could fail to append
rBAC Blender Add-ons Contrib
rBAC1eb13519768f Fix T38924: wm.link_append() could fail to append

Event Timeline

codemanx created this task.Mar 3 2014, 1:32 AM
codemanx raised the priority of this task from to 90.
codemanx updated the task description. (Show Details)
codemanx added projects: BF Blender, Add-ons (BF-Blender).
codemanx edited a custom field.
codemanx added a subscriber: codemanx.
codemanx added a comment.Mar 3 2014, 1:37 AM

This was actually reported earlier, but closed as invalid:

https://developer.blender.org/T30172

It might be platform-specific.

Campbell Barton (campbellbarton) added a subscriber: Campbell Barton (campbellbarton).EditedMar 3 2014, 5:53 AM

I tried this and link option is respect as it is from running the operator directly.

Could you upload sample blend files which fail?

Also possible (but unlikely) a bug for ms-windows, tested on 64bit Linux.

Not being able to make local looks like a real bug though, checking on that
*correction* - its not implemented. id_make_local

Campbell Barton (campbellbarton) added a comment.Mar 3 2014, 5:54 AM

Note that using bpy.ops.wm.link_append from python is quite limited, we have an API for linking which lets you inspect data in the blend file.

http://www.blender.org/documentation/blender_python_api_2_69_release/bpy.types.BlendDataLibraries.html

Campbell Barton (campbellbarton) lowered the priority of this task from 90 to Low.Mar 3 2014, 6:00 AM
codemanx added a comment.EditedMar 3 2014, 2:27 PM

It is indeed a Windows problem, it occurs if a Blender path with slashes is used:

 
# Fails to append
bpy.ops.wm.link_append(filepath="//Scene", directory="D:/append.blend/Scene/", filename="Scene", link=False)
  
# Appends successfully
bpy.ops.wm.link_append(filepath="//Scene", directory="D:\\append.blend/Scene/", filename="Scene", link=False)

A standard Windows path with backslashes works.

Campbell Barton (campbellbarton) added a comment.Mar 3 2014, 2:36 PM

This should be made to work (or at least give some error on invalid args),
but since theres already a python api for this and it only fails when called with incorrect args, Id postpone any changes here until after 2.70

Sergey Sharybin (sergey) assigned this task to Campbell Barton (campbellbarton).Apr 10 2014, 7:12 PM
Sergey Sharybin (sergey) added a subscriber: Sergey Sharybin (sergey).

@Campbell Barton (campbellbarton), mind looking into the fix?

Campbell Barton (campbellbarton) edited this Maniphest Task.Apr 25 2014, 10:44 AM
Campbell Barton (campbellbarton) changed the task status from Unknown Status to Resolved.Apr 25 2014, 10:44 AM

Closed by commit rB1eb13519768f.

Campbell Barton (campbellbarton) edited this Maniphest Task.May 12 2014, 4:49 PM