added pactl-next-output-dev.sh

sound/pactl-next-output-dev.sh

@@ -0,0 +1,81 @@
+#/bin/bash
+
+#
+# author: arian
+# date: 2024-05-06
+#
+# purpose:
+#   use this script on a keyboard shortcut to automatically
+#   change your output device to the next one using 'pactl'
+#
+# usage:
+#   ./pactl-next-output-dev.sh /path/to/log
+#
+
+#region run in debug if $DEBUG
+[ "$DEBUG" = 'true' ] && set -x
+#endregion
+
+#region globals
+CYAN='\e[0;36m'
+PURPLE='\e[0;35m'
+NORMAL='\e[0m'
+LOGFILE=${1:-'/var/log/arian/pactl-next-output-dev.sh.log'}
+LOGDIR="$(dirname "${LOGFILE}")"
+#endregion
+
+#region functions
+function log() {
+  # logs strings to both the terminal and a file
+  # usage: log [1-3] 'String'
+  #   1 => INFORMATION
+  #   2 => ERROR
+  #   3 => DEBUG
+
+  case $1 in
+    1)
+      msg_type="INFORMATION"
+      ;;
+
+    2)
+      msg_type="ERROR"
+      ;;
+
+    3)
+      msg_type="DEBUG"
+      ;;
+
+    *)
+      echo "Wrong input; exiting"
+      exit 1
+  esac
+
+  msg="[${PURPLE}$(date -Ins)${NORMAL}] [${CYAN}${msg_type}${NORMAL}]:  $2"
+  # tee command from https://unix.stackexchange.com/questions/694671/leave-color-in-stdout-but-remove-from-tee
+  # (omits coloring in logfile)
+  echo -e "${msg}" | tee >(sed $'s/\033[[][^A-Za-z]*[A-Za-z]//g' >> ${LOGFILE})
+}
+#endregion
+
+#region main
+[ -d "${LOGDIR}" ] || mkdir -p "${LOGDIR}"
+
+ALL_SINKS=($(pactl list short sinks | awk '{ print $2 }'))
+CURR_SINK=$(pactl get-default-sink)
+CURR_INDEX=-1
+
+log 1 "Using current sink [${CURR_SINK}]"
+
+for i in "${!ALL_SINKS[@]}"; do
+  if [[ "${ALL_SINKS[$i]}" = "${CURR_SINK}" ]]; then
+    CURR_INDEX="$i"
+  fi
+done
+
+NEXT_INDEX=$(($((CURR_INDEX + 1))%(${#ALL_SINKS[@]})))
+
+NEXT_SINK="${ALL_SINKS[$NEXT_INDEX]}"
+log 1 "Switching to sink [${NEXT_SINK}]"
+pactl set-default-sink "${ALL_SINKS[$NEXT_INDEX]}"
+
+#endregion