Import existing ext4 disk if present next to Arch.exe

[julianxhokaxhiu]

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Describe the issue
Two days ago I had to wipe my own Laptop because Windows started to behave weird. So as I'm using this distro on WSL2 all I did was backupping the directory where i extracted the Arch folder as contained in your zip ( which inside has the Arch.exe, the rootfs.tar.gz and the ext4 file created once installing once the distro ).

Once I finished to wipe my Laptop and re-enabled WSL2, all i did was copying back the folder, and double clicking Arch.exe. To my surprise the ext4 file contained already was overridden like it never existed before.

Would be nice if the ext4 file is considered and used, if present, in order to ease migrations.

To Reproduce
Steps to reproduce the behavior:
0. Set your WSL version to v2

1. Install the Arch OS by running Arch.exe
2. Copy the Arch folder into another Windows machine with WSL2
3. Double click Arch.exe
4. Proof-it

Expected behavior
Arch is added to WSL using the existing ext4 disk.

Screenshots
N/A

Enviroment:

• Windows build number: 10.0.19043.1110
• Security Software: Windows Defender
• WSL version 1/2: WSL2
• ArchWSL version: 21.7.16.0
• ArchWSL Installer type: zip
• Launcher version: wsldl2, version 21071600 (amd64)

Additional context
N/A

[sarahkittyy]

This actually happened to me too once, luckily I made a backup.

[yuk7]

Ok, Thank you for creating issue.
Treat this as a feature request and I'll work on it.

[yuk7]

I have implemented the feature of launcher to import ext4.vhdx if it already exists. (in c94af3e)
It will be included in the next release.

[yuk7]

I have released a version that contains a fix for this issue.

[julianxhokaxhiu]

Thank you very much, really appreciated!