Update volume script to proper standard

2020-04-10 12:54:55 +02:00
parent 3cf6fb84d9
commit 220281b59c
5 changed files with 113 additions and 60 deletions
@@ -1,56 +0,0 @@
-#!/bin/sh
-
-# General audio management
-
-RELOAD="$HOME/.scripts/panel/volume.sh"
-
-[ -z "$2" ] && NUM="2" || NUM="$2"
-
-help() {
-	B=$(tput bold)
-	N=$(tput sgr0)
-
-	cat << EOF
-${B}NAME${N}
-	mediacontrol - control the volume of the system
-
-${B}SYNOPSIS${N}
-	./mediacontrol.sh <command> [<arg1>]
-
-${B}DESCRIPTION${N}
-	Commands can be truncated, i.e.
-	\`${B}mediacontrol.sh t${N}\` for \`${B}mediacontrol.sh toggle${N}\`
-
-	Arguments need to be of numeric value.
-
-${B}COMMANDS${N}
-	${B}u*, up <amount>${N}
-
-	${B}d*, down <amount>${N}
-
-	${B}s*, set <volume>${N}
-
-	${B}t*, toggle${N}
-
-	${B}m*, mute${N}
-
-	${B}n*, notmute${N}
-
-	${B}getv*, getvolume${N}
-
-	${B}getm*, getmute${N}
-EOF
-}
-
-case "$1" in
-	u*)    pamixer --increase "$NUM" ; $RELOAD ;;
-	d*)    pamixer --decrease "$NUM" ; $RELOAD ;;
-	s*)    pamixer --set-volume "$NUM" ; $RELOAD ;;
-	t*)    [ "$(pamixer --get-mute)" = "false" ] && \
-	           pamixer --mute || pamixer --unmute ; $RELOAD ;;
-	m*)    pamixer --mute ; $RELOAD ;;
-	n*)    pamixer --unmute ; $RELOAD ;;
-	getv*) pamixer --get-volume ;;
-	getm*) pamixer --get-mute ;;
-	*)     help ;;
-esac
@@ -0,0 +1,109 @@
+#!/bin/sh
+
+# Control the volume
+# Depends: pamixer
+
+help() {
+	B=$(tput bold)
+	U=$(tput smul)
+	N=$(tput sgr0)
+
+	cat << EOF
+${B}NAME${N}
+	volctl.sh - control the volume
+
+${B}SYNOPSIS${N}
+	${B}volctl.sh${N} [${U}OPTION${N}] [${U}COMMAND${N}] [<${U}ARG${N}>]
+
+${B}DESCRIPTION${N}
+	${B}volctl.sh${N} uses pamixer to change the volume of the system.
+
+	Commands can be truncated, i.e. "${B}volctl.sh t${N}" for "${B}volctl.sh toggle${N}"
+	Arguments need to be of numeric value.
+
+${B}OPTIONS${N}
+	${B}-h${N}	Display usage message and exit.
+
+${B}COMMANDS${N}
+	${B}i${N} <${U}AMOUNT${N}>, ${B}inc${N} <${U}AMOUNT${N}>
+		Increase volume by ${U}AMOUNT${N}, default of 2.
+
+	${B}d${N} <${U}AMOUNT${N}>, ${B}dec${N} <${U}AMOUNT${N}>
+		Decrease volume by ${U}AMOUNT${N}, default of 2.
+
+	${B}s${N} <${U}LEVEL${N}>, ${B}set${N} <${U}LEVEL${N}>
+		Set volume to ${U}LEVEL${N}, default of 0.
+
+	${B}t${N}, ${B}toggle${N}
+		Toggle mute.
+
+	${B}m${N}, ${B}mute${N}
+		Mute volume.
+
+	${B}u${N}, ${B}unmute${N}
+		Unmute volume.
+
+	${B}getv${N}, ${B}getvolume${N}
+		Get volume level.
+
+	${B}getm${N}, ${B}getmute${N}
+		Get mute status.
+EOF
+}
+
+# Exit if no option is provided
+[ "$#" -eq 0 ] && help && exit 1
+
+SCRIPT="$(basename "$0")"
+
+# Option handling
+while getopts ':h?' opt; do
+	case $opt in
+		h)
+			help
+			exit 0
+			;;
+		\?)
+			echo "$SCRIPT: invalid option '$OPTARG'"
+			echo "Try '$SCRIPT -h' for more information."
+			exit 1
+			;;
+	esac
+done
+
+# Command handling
+shift $((OPTIND - 1))
+case "$1" in
+	i*)
+		NUM=${2:-2}
+		pamixer --increase "$NUM"
+		;;
+	d*)
+		NUM=${2:-2}
+		pamixer --decrease "$NUM"
+		;;
+	s*)
+		NUM=${2:-0}
+		pamixer --set-volume "$NUM"
+		;;
+	t*)
+		pamixer --toggle-mute
+		;;
+	m*)
+		pamixer --mute
+		;;
+	n*)
+		pamixer --unmute
+		;;
+	getv*)
+		pamixer --get-volume
+		;;
+	getm*)
+		pamixer --get-mute
+		;;
+	*)
+		echo "$SCRIPT: invalid command '$1'"
+		echo "Try '$SCRIPT -h' for more information."
+		exit 1
+		;;
+esac