Add script for toggling between available audio sources (inputs)

Author: Donien

switch_audio_source.sh

@@ -0,0 +1,36 @@
+#!/usr/bin/bash
+
+# REQUIRES COMMAND `pactl` (PULSEAUDIO RELATED)
+
+
+
+# Get available sources and active default source + the amount of sources
+# Also exclude monitors
+source_list=($(pactl list sources short | grep -v '.monitor' | awk '{print $2}'))
+source_num=$(pactl list sources short | grep -v '.monitor' | wc -l)
+source_current=$(pactl info | grep -e 'Default Source' | awk '{print $3}')
+
+
+# Get index of current default source
+for i in "${!source_list[@]}";
+do
+    if [[ "${source_list[$i]}" = "$source_current" ]]
+    then
+        index="$i"
+    fi
+done
+
+
+# Decrement source_num by 1 (zero-indexed)
+((source_num="$source_num"-1))
+
+# Increment index or set to 0 if index==source_num ("overflow" back to 0)
+if [[ "$index" = "$source_num" ]]
+then
+    index=0
+else
+    ((index="$index"+1))
+fi
+
+# Set default source to the next available in array
+pactl set-default-source "${source_list[$index]}"