bpy.ops.wm.save_as_mainfile does not work as expected on MacOS when run from script #67118

New Issue

Oliver Dawes · 2019-07-17T13:11:28+02:00

Oliver Dawes commented

2019-07-17 13:11:28 +02:00

System Information
Operating system: MacOS

Blender Version
Blender 2.8 Candidate Release (didn't try 2.79 but I suspect the same problem)

Short description of error
On MacOS the operator bpy.ops.wm.save_as_mainfile(copy=True, filepath=path, relative_remap=True, compress=True) saves the current blend scene as a copy but does find external assets when run from a script however saving through the interface using "File > Save Copy... > " does work as intended (I was under the impression that the interface is just running this operator under the hood which is why I am surprised to see different results)

Exact steps for others to reproduce the error

open a new unsaved blender file
add a texture to the default cube to act as an external asset
run the following script from blenders text editor

import bpy

# feel free to change path (I am saving to a temporary directory)
path='/var/folders/94/tdrqyvln2_bfkdxctp3ktdr40000gn/T/gm-temp-dir-6fzcf_08/file_saved_through_script.blend'

bpy.ops.wm.save_as_mainfile(copy=True, filepath=path, relative_remap=True, compress=True)

You should see a similar messages in the system console:

Info: Total files 1 | Changed 1 | Failed 0`
Path /private/Users/<user name>/Pictures/test_texture.jpg does not exist for <BlockUsage name=b'IMartsoc5.jpg' type='Image' field='name[1024]' asset=BlendPath(b'//../../../../../../Users/<user name>/Pictures/test_texture.jpg')>```

However if you save a copy through the interface you just get:

Info: Total files 1 | Changed 1 | Failed 0

(no weird does not exist error)

Note - I have tested on Windows and Linux and it works as expected in both these environments. I encountered this issue as I am trying to write a blender add-on that requires packing the current blender scene before upload. I am using Blender Asset Tracer (BAT) to do this and it works well. I save a copy of the current scene to a temporary blend file and pack that file, however on MacOS this packed file never contains external assets and it appears to be because `bpy.ops.wm.save_as_mainfile` is not working correctly.

**System Information** Operating system: MacOS **Blender Version** Blender 2.8 Candidate Release (didn't try 2.79 but I suspect the same problem) **Short description of error** On MacOS the operator `bpy.ops.wm.save_as_mainfile(copy=True, filepath=path, relative_remap=True, compress=True)` saves the current blend scene as a copy but does find external assets when run from a script however saving through the interface using "File > Save Copy... > <same output location as script>" does work as intended (I was under the impression that the interface is just running this operator under the hood which is why I am surprised to see different results) **Exact steps for others to reproduce the error** - open a new unsaved blender file - add a texture to the default cube to act as an external asset - run the following script from blenders text editor ``` import bpy # feel free to change path (I am saving to a temporary directory) path='/var/folders/94/tdrqyvln2_bfkdxctp3ktdr40000gn/T/gm-temp-dir-6fzcf_08/file_saved_through_script.blend' bpy.ops.wm.save_as_mainfile(copy=True, filepath=path, relative_remap=True, compress=True) ``` You should see a similar messages in the system console: ``` Info: Total files 1 | Changed 1 | Failed 0` Path /private/Users/<user name>/Pictures/test_texture.jpg does not exist for <BlockUsage name=b'IMartsoc5.jpg' type='Image' field='name[1024]' asset=BlendPath(b'//../../../../../../Users/<user name>/Pictures/test_texture.jpg')>``` However if you save a copy through the interface you just get: ``` Info: Total files 1 | Changed 1 | Failed 0 ``` (no weird does not exist error) Note - I have tested on Windows and Linux and it works as expected in both these environments. I encountered this issue as I am trying to write a blender add-on that requires packing the current blender scene before upload. I am using Blender Asset Tracer (BAT) to do this and it works well. I save a copy of the current scene to a temporary blend file and pack that file, however on MacOS this packed file never contains external assets and it appears to be because `bpy.ops.wm.save_as_mainfile` is not working correctly.

Oliver Dawes commented

2019-07-17 13:11:28 +02:00

Added subscriber: @haiku

Philipp Oeser commented

2019-07-17 13:58:24 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2019-07-17 13:58:24 +02:00

Still unsure if this is related to BAT or plain blender?

That message you see is from BAT...

If you dont use BAT but just run the script you posted, if you then open the file just saved through the script, are the images showing up? (so the paths are still correct?)
If this is the case, then we might have to dig in BAT instead, no?

Still unsure if this is related to `BAT` or plain blender? That message you see is from `BAT`... If you dont use BAT but just run the script you posted, if you then open the file just saved through the script, are the images showing up? (so the paths are still correct?) If this is the case, then we might have to dig in BAT instead, no?

Philipp Oeser commented

2019-07-17 14:00:16 +02:00

btw., #62612 might be related... (still not sure though why these would actually report as "not existing"...)

Oliver Dawes commented

2019-07-17 16:38:21 +02:00

In #67118#725115, @lichtwerk wrote:
Still unsure if this is related to BAT or plain blender?

That message you see is from BAT...

If you dont use BAT but just run the script you posted, if you then open the file just saved through the script, are the images showing up? (so the paths are still correct?)
If this is the case, then we might have to dig in BAT instead, no?

Sorry I must have been running BAT trace after saving, however I still believe the issue is plain blender.

I just tried running the script with a variety of save locations (No BAT) and here's the result:

Saved to /var/folders/94/tdrqyvln2_bfkdxctp3ktdr40000gn/T/file_saved_through_script.blend and when opened in blender the cube was missing it's texture (showed as pink)
Saved to /var/folders/94/tdrqyvln2_bfkdxctp3ktdr40000gn/T/gm-temp-dir-6fzcf_08/file_saved_through_script.blend (pink cube again)
Saved to /tmp/file_saved_through_script.blend (pink cube again)
Saved to /Applications/file_saved_through_script.blend This time the cube had it's texture
Saved to /Users/<user name>/file_saved_through_script.blend cube had it's texture
Saved to /Users/<user name>/Desktop/file_saved_through_script.blend cube had it's texture

The cube texture was located on the desktop so it looks to me like the paths are correctly re-mapped so long as your saving the file to a location with the same root as the texture. I'm guessing the /Applications folder maps to the /Users/<user name>/Applications folder? I'm not used to MacOS so I may be wrong on that.

I need to be able to save the current blender scene (that may contain relative and absolute paths) as a copy to to some arbitary location in a way that BAT will then be able to pack that copy for distribution.

> In #67118#725115, @lichtwerk wrote: > Still unsure if this is related to `BAT` or plain blender? > > That message you see is from `BAT`... > > If you dont use BAT but just run the script you posted, if you then open the file just saved through the script, are the images showing up? (so the paths are still correct?) > If this is the case, then we might have to dig in BAT instead, no? Sorry I must have been running BAT trace after saving, however I still believe the issue is plain blender. I just tried running the script with a variety of save locations (No BAT) and here's the result: - Saved to `/var/folders/94/tdrqyvln2_bfkdxctp3ktdr40000gn/T/file_saved_through_script.blend` and when opened in blender the cube was missing it's texture (showed as pink) - Saved to `/var/folders/94/tdrqyvln2_bfkdxctp3ktdr40000gn/T/gm-temp-dir-6fzcf_08/file_saved_through_script.blend` (pink cube again) - Saved to `/tmp/file_saved_through_script.blend` (pink cube again) - Saved to `/Applications/file_saved_through_script.blend` This time the cube had it's texture - Saved to `/Users/<user name>/file_saved_through_script.blend` cube had it's texture - Saved to `/Users/<user name>/Desktop/file_saved_through_script.blend` cube had it's texture The cube texture was located on the desktop so it looks to me like the paths are correctly re-mapped so long as your saving the file to a location with the same root as the texture. I'm guessing the `/Applications` folder maps to the `/Users/<user name>/Applications` folder? I'm not used to MacOS so I may be wrong on that. I need to be able to save the current blender scene (that may contain relative and absolute paths) as a copy to to some arbitary location in a way that BAT will then be able to pack that copy for distribution.

Demeter Dzadik commented

2019-07-28 02:32:25 +02:00

Added subscriber: @Mets

Demeter Dzadik commented

2019-07-28 02:32:25 +02:00

Looks like this no longer needs information.

I tested it but... Blender actually just closed for me when running the script, with no message in the console. Is that... what's supposed to happen? It also does not save a file in the path I specified.

Win10 v1607, GTX 1070, 79ce2054d4

Looks like this no longer needs information. I tested it but... Blender actually just closed for me when running the script, with no message in the console. Is that... what's supposed to happen? It also does not save a file in the path I specified. Win10 v1607, GTX 1070, 79ce2054d4

Oliver Dawes commented

2019-07-28 14:31:06 +02:00

@Mets - Blender shouldn't close, how are you running the script and which line of the script is causing blender to close for you? I was just using blender's internal text editor to run it btw, I didn't try running the script as a command line argument or anything.

Demeter Dzadik commented

2019-07-28 14:40:22 +02:00

Welp, today it works fine... Same build, same file, same path. I don't know why it was doing that yesterday... Oh well, I guess what matters is I can't reproduce.

Oliver Dawes commented

2019-07-28 17:38:11 +02:00

@Mets What OS were you using?

Demeter Dzadik commented

2019-07-28 18:09:16 +02:00

Windoze, mentioned in my first comment.

Oliver Dawes commented

2019-07-28 19:44:53 +02:00

@Mets Ah I see, I only get the bug on Mac so that makes sense.

Jean First commented

2020-05-16 20:00:17 +02:00

Added subscriber: @robbott

Jean First commented

2020-05-16 20:00:17 +02:00

I cannot reproduce this on OSX 10.14.6 . Are you still able to reproduce this on the latest version ?

Operating system: Darwin-18.7.0-x86_64-i386-64bit 64 Bits
Graphics card: AMD Radeon Pro 560X OpenGL Engine ATI Technologies Inc. 4.1 ATI-2.11.20
2.90 (sub 0), branch: master, commit date: 2020-05-09 15:17, hash: 633fee72d5

I cannot reproduce this on OSX 10.14.6 . Are you still able to reproduce this on the latest version ? Operating system: Darwin-18.7.0-x86_64-i386-64bit 64 Bits Graphics card: AMD Radeon Pro 560X OpenGL Engine ATI Technologies Inc. 4.1 ATI-2.11.20 2.90 (sub 0), branch: master, commit date: 2020-05-09 15:17, hash: `633fee72d5`

Bastien Montagne commented

2020-05-27 15:51:47 +02:00

Added subscriber: @mont29

Bastien Montagne commented

2020-05-27 15:51:47 +02:00

Changed status from 'Needs Developer To Reproduce' to: 'Resolved'

Bastien Montagne closed this issue

2020-05-27 15:51:47 +02:00

Bastien Montagne self-assigned this 2020-05-27 15:51:47 +02:00

Bastien Montagne commented

2020-05-27 15:51:47 +02:00

Cannot reproduce that with current blender either (on linux), so for now will consider it fixed, feel free to reopen if you can still reproduce.

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bpy.ops.wm.save_as_mainfile does not work as expected on MacOS when run from script #67118