problem with opening files from OneDrive folder

[Alexey-T]

private msg:
I run on Windows10 and have a folder (with lots of subfolders) synced with Microsoft OneDrive.

In CudaText I cannot open any of these files. In "file open" dialog I can see them as normal, but when I select "open" I get an error message saying
"Path must exist"
"The path (and then path to folder) does not exist."

Almost the same happens when I right mouse click on the file and select "open with cudatext"
Then I get a Windows error with
"CudaText"
"File not found: (path to file)"
"Create it?"

If I select Cancel an empty CudaText opens. If I select OK the file is overwritten with an empty file.

Opening files on other locations than the OneDrive synced folders works just fine.

[Alexey-T]

I cannot reproduce it on Win10 x64 OneDrive. @kvichans @iRamSoft @dinkumoil Maybe you see the issue?

[dinkumoil]

Sorry, I do not use OneDrive, don't have an account.

[JairoMartinezA]

Hi @Alexey-T

I am testing with some scenarios using OneDrive, but I couldn't repro at the end. My comments:

1. I suppose there are more settings in OneDrive, but basically with my test I could figure out when I try to open a file using OneDrive folder and the file is available on-line, when Cud open the file, the file is downloaded first, in other cases if the file is not downloaded first, Cud doesn't enable the Open button.
2. I think the issue is more related with this: Maximum path limit. What I really can see is if I try to copy a long path from file explorer like this:
   C:\Users\Jairo Martinez\Documents\Nested Folder 1\Nested Folder 2\Nested Folder 3\Nested Folder 4\Nested Folder 5\Nested Folder 6\Nested Folder 7\Nested Folder 8\Nested Folder 9\Nested Folder 10\Nested Folder 11\Nested Folder 12\Nested Folder 13\Nested Folder 14\Nested Folder 15\Nested Folder 16\Nested Folder 17\Nested Folder 18\Nested Folder 19\Nested Folder 20\TestFile.txt

And if I want to paste this value in Open File Dialog, Windows truncate automatically to fit only 260 chars:

And in this case after click on Open button, Cud show the "error" (because the truncated path not exists):

[Alexey-T]

It's FPC bug
https://forum.lazarus.freepascal.org/index.php?topic=42155.new#new

[Alexey-T]

fixed in FPC 3.3 trunk.