[common] Check for PulseAudio on WSL2

tests/bats/sound.bats

@@ -37,6 +37,18 @@ function setup() {
     unset pgrep command
 }
 
+@test "function_detect_sound_pulseaudio_wsl2" {
+    PULSE_SOCKET_WSL2=/tmp/PulseServer
+    run touch "$PULSE_SOCKET_WSL2"
+    function pactl() {
+        echo "Server Name: pulseaudio"
+    }
+    export -f pactl
+    detect_sound
+    assert_equal "$SOUND_SERVER" "pulseaudio"
+    unset pactl
+}
+
 @test "function_detect_sound_pipewire" {
     function pgrep() {
         echo "pipewire"
@@ -59,5 +71,5 @@ function setup() {
 }
 
 function teardown() {
-    rm -f "$LOG_FILE"
+    rm -f "$LOG_FILE" "$PULSE_SOCKET_WSL2"
 }

utils/common.sh

@@ -63,6 +63,13 @@ function detect_sound() {
             SOUND_SERVER="PulseAudio (on PipeWire)"
         fi
         export SOUND_SERVER
+    elif [ -f "$PULSE_SOCKET_WSL2" ]; then
+        # This condition is only related to WSL2 as PulseServer socket will be under
+        # /mnt/wslg/  directory.
+        if command -v pactl &>>"$LOG_FILE"; then
+            SOUND_SERVER="$(pactl info | awk -F":" '$1 ~ /Server Name/ { print $2 }' | sed 's/^ *//')"\
+            export SOUND_SERVER
+        fi
     # Looking for strictly for pipepire process
     elif [ "$(pgrep -a -f "pipewire$" | awk -F"/" '{ print $NF }' 2>>"$LOG_FILE")" == "pipewire" ]; then
         export SOUND_SERVER="PipeWire"

utils/constants.sh

@@ -29,4 +29,5 @@ export NEWT_COLORS="
     roottext=lightgrey,black
 "
 export OS_RELEASE=/etc/os-release
+export PULSE_SOCKET_WSL2=/mnt/wslg/PulseServer
 export USER_ID="$EUID"