Add a script to handle pulseaudio.

i3/i3/scripts/pa-volume.bash

@@ -0,0 +1,79 @@
+#!/bin/bash
+
+# index of the sink. execute pactl list sinks to get a list
+SINK=1
+
+getvol() {
+    echo $(pactl list sinks | grep "^[[:space:]]*Volume" | head -n $(( $SINK + 1 )) | tail -n 1 | grep -o "[[:digit:]]*%" | head -n 1 | cut -d "%" -f 1)
+}
+
+setvol() {
+    pactl set-sink-volume $SINK $(( $1 * 65536 / 100 ))
+}
+
+ismuted() {
+    muted=$(pactl list sinks | grep "^[[:space:]]*Mute" | head -n $(( $SINK + 1 )) | tail -n 1 | cut -d " " -f 2)
+    if [[ $muted == "no" ]]; then
+        echo 0
+    else
+        echo 1
+    fi
+}
+
+mute() {
+    pactl set-sink-mute $SINK 1
+}
+
+unmute() {
+    pactl set-sink-mute $SINK 0
+}
+
+mute-toggle() {
+    pactl set-sink-mute $SINK toggle
+}
+
+status() {
+    if [[ $(ismuted) == "1" ]] ; then
+        echo "mute"
+        return
+    fi
+    echo "$(getvol)%"
+}
+
+usage() {
+    echo "Usage:"
+    echo
+    echo "$0 get-vol"
+    echo "$0 set-vol VOL_PERC"
+}
+
+case "$1" in
+    "get-vol")
+        echo $(getvol)
+        ;;
+    "set-vol")
+        if [[ -z "$2" ]] ; then
+            usage
+        else
+            setvol "$2"
+        fi
+        ;;
+    "mute")
+        mute
+        ;;
+    "unmute")
+        unmute
+        ;;
+    "mute-toggle")
+        mute-toggle
+        ;;
+    "is-muted")
+        echo $(ismuted)
+        ;;
+    "status")
+        echo $(status)
+        ;;
+    *)
+        echo "wrong usage"
+        ;;
+esac