The "Open Recent" file list ignores external filename case changes #105881

New Issue

Aaron Eads · 2023-03-18T14:58:10+01:00

Aaron Eads commented

2023-03-18 14:58:10 +01:00

System Information
Operating system: Windows-10-10.0.22621-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3090/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 526.98

Blender Version
Broken: version: 3.4.1, branch: blender-v3.4-release, commit date: 2022-12-19 17:00, hash: rB55485cb379f7
Worked: (newest version of Blender that worked as expected)

Short description of error

When a .blend file is added to the "Open Recent" menu (i.e. upon saving), it seems the filename is stored with the menu entry. If only the casing in the .blend filename is changed (e.g. my_blend.blend -> MY_BLEND.blend), the "Open Recent" menu item still opens as expected. However, when the file is opened and re-saved, the original filename is written to disk. There is no way to fix the menu item, besides pushing it out of the "Open Recent" queue and re-saving the file.

Exact steps for others to reproduce the error

Upon startup, save the scene as "my_blend.blend"
Exit Blender
In the system file explorer, rename the blend file to "MY_BLEND.blend"
Open Blender
From the main menu, click (File > Open Recent > "my_blend.blend")
On Windows, observe that the window title reads "Blender [C://.../my_blend.blend]"
Save the scene

Actual behavior: The scene is saved as "my_blend.blend"
Expect behavior: The scene is saved as "MY_BLEND.blend"

**System Information** Operating system: Windows-10-10.0.22621-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3090/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 526.98 **Blender Version** Broken: version: 3.4.1, branch: blender-v3.4-release, commit date: 2022-12-19 17:00, hash: `rB55485cb379f7` Worked: (newest version of Blender that worked as expected) **Short description of error** When a .blend file is added to the "Open Recent" menu (i.e. upon saving), it seems the filename is stored with the menu entry. If only the casing in the .blend filename is changed (e.g. my_blend.blend -> MY_BLEND.blend), the "Open Recent" menu item still opens as expected. However, when the file is opened and re-saved, the original filename is written to disk. There is no way to fix the menu item, besides pushing it out of the "Open Recent" queue and re-saving the file. **Exact steps for others to reproduce the error** 1. Upon startup, save the scene as "my_blend.blend" 2. Exit Blender 3. In the system file explorer, rename the blend file to "MY_BLEND.blend" 4. Open Blender 5. From the main menu, click (File > Open Recent > "my_blend.blend") 6. On Windows, observe that the window title reads "Blender \[C://.../**my_blend.blend**]" 7. Save the scene Actual behavior: The scene is saved as "my_blend.blend" Expect behavior: The scene is saved as "MY_BLEND.blend"

Aaron Eads added the

labels 2023-03-18 14:58:11 +01:00

Alaska commented

2023-03-19 00:41:33 +01:00

I believe this is normal behaviour and has something to do with NTFS (the default file system for Windows).

NTFS is case insensitive, meaning my_blend.blend and MY_BLEND.blend are the exact same name according to NTFS. Hence why when you rename a project from my_blend.blend to MY_BLEND.blend, it still opens from the recent files menu in Blender. Because Blender is looking for my_blend.blend and NTFS thinks MY_BLEND.blend is the same as my_blend.blend and so it still opens it.

Then when you save the project, Blender saves the project with the old lower case name because it didn't know that the case had changed because according to Blenders interaction with the file system, the case hadn't changed.

If you run the same test with a different file system that is case sensitive, E.G. Apple File System on macOS or EXT4 on Linux, when you do step 5 of your instruction, an error pops up saying that the file doesn't exist. Because these file systems treat files with different cases as different files, unlike NTFS.

I'd like input from a developer, do you think you'll be able to detect if the case has changed on a file while using a case insensitive file system? And thus change the save name of files in these situations?

I believe this is normal behaviour and has something to do with NTFS (the default file system for Windows). NTFS is case insensitive, meaning `my_blend.blend` and `MY_BLEND.blend` are the exact same name according to NTFS. Hence why when you rename a project from `my_blend.blend` to `MY_BLEND.blend`, it still opens from the recent files menu in Blender. Because Blender is looking for `my_blend.blend` and NTFS thinks `MY_BLEND.blend` is the same as `my_blend.blend` and so it still opens it. Then when you save the project, Blender saves the project with the old lower case name because it didn't know that the case had changed because according to Blenders interaction with the file system, the case hadn't changed. If you run the same test with a different file system that is case sensitive, E.G. `Apple File System` on macOS or `EXT4` on Linux, when you do step 5 of your instruction, an error pops up saying that the file doesn't exist. Because these file systems treat files with different cases as different files, unlike NTFS. --- I'd like input from a developer, do you think you'll be able to detect if the case has changed on a file while using a case insensitive file system? And thus change the save name of files in these situations?

Alaska added

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The "Open Recent" file list ignores external filename case changes #105881