Add volume script

.config/polybar/scripts/volume.sh

@@ -0,0 +1,62 @@
+#!/usr/bin/env bash
+
+# # Switch to headphone jack
+# amixer set 'Headphone' 100% && amixer set 'Speaker' 0%
+# 
+# # Switch to speaker
+# amixer set 'Headphone' 0% && amixer set 'Speaker' 100%
+
+MODE_FILE=/tmp/pulse_mode
+
+function get_mode() {
+    if test -f "$MODE_FILE"; then
+        cat "${MODE_FILE}";
+    else
+        echo 0;
+    fi
+}
+
+function change_mode() {
+    if [ "$mode" -lt "3" ]; then
+        ((mode++))
+    else
+        mode=0
+    fi
+    echo $mode > $MODE_FILE;
+}
+
+function update_feed() {
+    while true; do
+        echo "$(get_mode)";
+    done
+}
+
+function vol_inc() {
+    amixer set 'Master' 5%+ >> /dev/null
+    amixer -c 2 set 'PCM' 5%+ >> /dev/null
+}
+
+function vol_dec() {
+    amixer set 'Master' 5%- >> /dev/null
+    amixer -c 2 set 'PCM' 5%- >> /dev/null
+}
+
+mode=$(get_mode)
+
+case "$1" in
+    up)
+        vol_inc
+        ;;
+    down)
+        vol_dec;
+        ;;
+    next_sink)
+        next_sink
+        ;;
+    feed)
+        update_feed
+        ;;
+    change_mode)
+        change_mode
+        ;;
+esac