Windows: Launching via `code` with different folder casing causes "Could not find any workspace folder for ..."

[Ziemowit-LH]

This may or may not happen for different sessions inside the same repository.

The tree is empty, shows GIT TREE COMPARE: NONE.

When refreshing inside a repository the following can be seen in output tab:

Using git from C:\Program Files\Git\cmd\git.exe
Ignoring irrelevant change: c:\repos\REPO\.git\objects
Ignoring irrelevant change: c:\repos\repo\.git\logs\refs\remotes\origin\main
Ignoring irrelevant change: c:\repos\repo\.git\FETCH_HEAD
Updating the git tree failed: The "path" argument must be of type string. Received undefined

Finally figured out why this happens!

Turns out Git Tree Compare is case-sensitive on Windows.
The repository is in c:\repos\REPO.
If I launch with code c:\repos\REPO, it works.
When I launch with code c:\repos\repo, it doesn't.

If this can't be worked around, perhaps the error message could hint to this behaviour?

[letmaik]

I can reproduce this when launching with a casing that doesn't match the actual casing on Windows.
The first error I get is "Changing the repository failed: Could not find any workspace folder for c:...". Pressing the refresh button it then outputs "Updating the git tree failed: The "path" argument must be of type string. Received undefined" as in your case.

I'll have a look what the best way is to fix this but it's definitely an edge case. The tricky part is that Linux is case-sensitive, so two folders foo and FOO can actually co-exist, even though it's unusual.

[Ziemowit-LH]

For me it would be enough that the error hinted at the possibility the error may be caused by incorrect casing in path.

[StephenHillAtViaivi]

This also happens when using VsCode from Windows to remote Linux repo now ... this used to work, but has recently broken.
In Output I see:
Updating the git tree failed: The "path" argument must be of type string. Received undefined