Allow non drvfs on wsl environment

[y-hashida]

Hi Preact team!

I have been using vagrant-sshfs on a regular basis!

This time, I want to use this plugin in a wsl environment.

To do so, I need to set the wsl_allow_non_drvfs option to true, so I created this PR based on the official vagrant rsycn shared folder plugin example.

Official Example:

https://github.com/hashicorp/vagrant/blob/5b501a3fb05ed0ab16cf10991b3df9d231edb5cf/plugins/synced_folders/rsync/synced_folder.rb#L52-L56

Thank you.

[y-hashida]

@dcermak
Excuse me, could you please take a look at this?

[dcermak]

y-hashida ***@***.***> writes:

@dcermak Excuse me, could you please take a look at this?

The change looks good to me, but I have neither maintainer rights over this repo, nor a machine to test this. Did you maybe want to ping @dustymabe?

[y-hashida]

@dcermak
Sorry...
You are right, I made a mistake in the destination of the mentions.

[dustymabe]

Suggested change

	# Enable rsync synced folders within WSL when in use
	# Enable sshfs synced folders within WSL when in use

[dustymabe]

this still needs to happen

[y-hashida]

Thank you very much!
I have corrected that comment!

[dustymabe]

Is there more context for why this is needed? I don't really understand WSL too much so any context to fill in the gaps would be appreciated.

[y-hashida]

@dustymabe
Thank you for your reply

In fact, systemd is now supported in WSL2.
With it, libvirt is now available.
I use a plugin called vagrant-libvit to create a vagrant environment on WSL2.

I have tried various vagrant folder synchronization methods and found vagrant-sshfs to be easy to use.
(The mount_options built into vagrant-libvirt did not work correctly, whereas vagrant-sshfs did.)

So I prepared this PR so that vagrant-sshfs can be used with WSL2.