wslpath fails when pointed to the current directory with the -u option.

[andrewparlane]

Version

Microsoft Windows [Version 10.0.19045.2486]

WSL Version

• WSL 2
• WSL 1

Kernel Version

Linux version 4.4.0-19041-Microsoft (Microsoft@Microsoft.com) (gcc version 5.4.0 (GCC) ) #2311-Microsoft Tue Nov 08 17:09:00 PST 2022

Distro Version

Ubuntu 18.04

Other Software

No response

Repro Steps

After a clean install of Ubuntu 18.04 run: wslpath -u .

Same thing for "wslpath -u ../this_dir", where this_dir is the directory you're currently in.

Expected Behavior

The result should be: "." on stdout.

Actual Behavior

The result is: "wslpath: .", output to stderr

Diagnostic Logs

andrewp@vanadium:~/foo$ mkdir foo bar
andrewp@vanadium:~/foo$ cd foo
andrewp@vanadium:~/foo$ wslpath -u .
wslpath: .
andrewp@vanadium:~/foo$ wslpath -u ..
/home/andrewp/
andrewp@vanadium:~/foo$ wslpath -u ../foo
wslpath: ../foo
andrewp@vanadium:~/foo$ wslpath -u ../bar
/home/andrewp/bar

For reference on another PC:
Microsoft Windows [Version 10.0.19044.2486] // note: this is slightly different
Linux version 4.4.0-19041-Microsoft (Microsoft@Microsoft.com) (gcc version 5.4.0 (GCC) ) #2311-Microsoft Tue Nov 08 17:09:00 PST 2022
This works fine:

andrewp@DESKTOP-8GH03GT:~$ mkdir foo bar
andrewp@DESKTOP-8GH03GT:~$ cd foo
andrewp@DESKTOP-8GH03GT:~/foo$ wslpath -u .
.
andrewp@DESKTOP-8GH03GT:~/foo$ wslpath -u ..
/home/andrewp/
andrewp@DESKTOP-8GH03GT:~/foo$ wslpath -u ../foo
.
andrewp@DESKTOP-8GH03GT:~/foo$ wslpath -u ../bar
/home/andrewp/bar

Another difference is that "wsl -v" is a (powershell) command that works on the PC with the broken behaviour, but is not recognised on the PC with wslpath working correctly. This suggests that this issue is due to a newer version of WSL. I tried installing v0.70.4 but the issue remains. I'm not sure how to find out what version of wsl I have installed on my other PC since the wsl -v option is not available. Windows "Apps & Features" lists "Windows Subsystem For Linux Update" as v5.10.16 if that helps.

This bug is a bit annoying because the Intel Quartus tools require WSL 1, and make heavy use of wslpath.

[benhillis]

I believe this issue is resolved with newer versions of WSL? (The store version)

[OneBlue]

I can reproduce the issue on latest Store WSL. I'll work on a fix.

[benhillis]

Fixed with https://github.com/microsoft/WSL/releases/tag/1.1.3.

[andrewparlane]

confirmed as fixed. Thanks a lot for the quick turnaround.