Meta: Automatically use WSL paths on Windows

Author: https://github.com/gunnarbeutner
Commit: https://github.com/SerenityOS/serenity/commit/ee7e9f05a8a
Pull-request: https://github.com/SerenityOS/serenity/pull/8594
Reviewed-by: https://github.com/ADKaster
Reviewed-by: https://github.com/awesomekling ✅
Reviewed-by: https://github.com/nico

Documentation/BuildInstructionsWindows.md

@@ -27,17 +27,10 @@ By default this will be located at `/mnt/c/Program Files/qemu/qemu-system-i386.e
 - Set the `SERENITY_QEMU_BIN` environment variable to the location above. For example: \
 `export SERENITY_QEMU_BIN='/mnt/c/Program Files/qemu/qemu-system-i386.exe'`
 
-- Locate the _Windows_ path to the SerenityOS disk image, as native QEMU will be accessing it via the Windows filesystem.
-  If your build tree is located in the WSL2 partition, this will be accessible under the `\\wsl$` network file share
-  (see [notes below](#note-on-filesystems)).
-
 - Set the `SERENITY_KERNEL_CMDLINE` environment variable to disable VirtIO support (Because it is currently broken on
   native windows QEMU):
 `export SERENITY_KERNEL_CMDLINE="disable_virtio"`
 
-- Set the `SERENITY_DISK_IMAGE` environment variable to the full path of the SerenityOS disk image file from above.
-  For example: `export SERENITY_DISK_IMAGE='\\wsl$\Ubuntu-20.04\home\username\serenity\Build\i686\_disk_image'`
-
 - `ninja run` as usual.
 
 ### Hardware acceleration

Meta/run.sh

@@ -57,6 +57,13 @@ fi
     else
         SERENITY_DISK_IMAGE="_disk_image"
     fi
+    if command -v wslpath >/dev/null; then
+        case "$SERENITY_QEMU_BIN" in
+            /mnt/c/*)
+                SERENITY_DISK_IMAGE=$(wslpath -w "$SERENITY_DISK_IMAGE")
+                ;;
+        esac
+    fi
 }
 
 if ! command -v "$SERENITY_QEMU_BIN" >/dev/null 2>&1 ; then