Waydroid in WSL2

0_waydroid-on-wsl2.md

This is to expand on onomatopellan's original tutorial here Waydroid in WSL2 with sound

We had a productive discussion and confirmed that Weston installation is optional. Since Weston is already part of WSLg and availible in WSL2, the guide is getting much simplified. Bottomline, if you prefer you can do this without second/separate Weston installtion.

To simplify it even further I use this startup script "android-startup.sh" (below) which automates the startup steps. But that comes after the installations and other preparations. For them just follow onomatopellan's guide.

android-startup.sh

#!/bin/bash

if [[ $(pgrep -u $UID -f "dbus-daemon --session") ]]; then
    echo "Found a running instance of 'dbus-daemon'"
else
    dbus-daemon --session --address=$DBUS_SESSION_BUS_ADDRESS --nofork --nopidfile --syslog-only &
    echo "Spawned a new instance of 'dbus-daemon'"
fi

export GALLIUM_DRIVER=d3d12
WAYDROID_SESS_LOG=/tmp/waydroid_session_start.out
waydroid session start >$WAYDROID_SESS_LOG 2>&1 &

WAYDROID_SESS_PID=$!
echo WAYDROID_SESS_PID=$WAYDROID_SESS_PID

while [[ true ]]; do
    echo "Waiting for 10s longer ..."
    sleep 10
    WAYDROID_SESS_ACTIVE=$(ps --no-headers -o pid -p $WAYDROID_SESS_PID)
    #echo "PID: [$WAYDROID_SESS_ACTIVE] is running"
    if [[ -z "$WAYDROID_SESS_ACTIVE" || "$WAYDROID_SESS_ACTIVE" -ne "$WAYDROID_SESS_PID" ]]; then
    	echo "Failed: Something went wrong with Waydroid's session."
        cat $WAYDROID_SESS_LOG
    	exit 99
    fi

    grep --quiet --no-messages --regexp 'Android.*is ready$' $WAYDROID_SESS_LOG
    if [[ "$?" -eq 0 ]]; then
    	waydroid show-full-ui
        exit 0
    fi
    #ps -p $WAYDROID_SESS_PID
done