diff options
Diffstat (limited to 'scripts/svol')
| -rwxr-xr-x | scripts/svol | 67 |
1 files changed, 40 insertions, 27 deletions
diff --git a/scripts/svol b/scripts/svol index f973773..ac78040 100755 --- a/scripts/svol +++ b/scripts/svol @@ -1,10 +1,5 @@ #!/bin/sh -err() { - printf "${1} \n" - exit 1 -} - help() { cat << EOF $0: Wrapper script to change volume @@ -19,43 +14,61 @@ options: EOF } +err() { + echo "$*" >&2 + exit 1 +} + +run() { + if ! ${1} > /dev/null 2>&1; then + err "${2}" + fi +} + +if ! command -v pactl > /dev/null 2>&1; then + err "${0}: pulseaudio must be installed" +fi + if [ $# != 1 ] && [ $# != 2 ]; then - err "${0}: Invalid usage\nTry \'$0 -h\' for help." + err "${0}: Invalid usage +Try '$0 -h' for help." fi while getopts "i:d:s:pth" option; do case "${option}" in i) - pactl set-sink-volume @DEFAULT_SINK@ +"${OPTARG}"% \ - > /dev/null 2>&1 && exit 0 \ - || err "${0}: Failed to increase" + run "pactl set-sink-volume @DEFAULT_SINK@ +${OPTARG}%" \ + "${0}: Failed to increase volume" + exit 0 ;; d) - pactl set-sink-volume @DEFAULT_SINK@ -"${OPTARG}"% \ - > /dev/null 2>&1 && exit 0 \ - || err "${0}: Failed to decrease" + run "pactl set-sink-volume @DEFAULT_SINK@ -${OPTARG}%" \ + "${0}: Failed to decrease volume" + exit 0 ;; s) - pactl set-sink-volume @DEFAULT_SINK@ "${OPTARG}"% \ - > /dev/null 2>&1 && exit 0 \ - || err "${0}: Failed to set" - ;; - p) - pactl get-sink-volume @DEFAULT_SINK@ 2>/dev/null\ - || err "${0}: Failed" + run "pactl set-sink-volume @DEFAULT_SINK@ ${OPTARG}%" \ + "${0}: Failed to set volume" + exit 0 ;; t) - pactl set-sink-volume @DEFAULT_SINK@ toggle \ - > /dev/null 2>&1 && exit 0 \ - || err "${0}: Failed to toggle" - ;; - h) - help + run "set-sink-volume @DEFAULT_SINK@ toggle" \ + "${0}: Failed to toggle volume" exit 0 ;; - *) - err "Try \'${0} -h\' for help" + p) + if ! pactl get-sink-volume @DEFAULT_SINK@ 2>/dev/null; then + err "Failed to get current volume" + else + exit 0 + fi ;; + h) help; exit 0 ;; + + *) err "Try '${0} -h' for help" ;; esac done + +err "${0}: Invalid usage +Try '$0 -h' for help." |