sisyphus/scripts/notify.sh

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#!/usr/bin/env bash
# Show system status in notification, or your own message
# Syntaxis: notify [-vb] [-t <timeout>] [-p <value>] [<title> <message>]
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# Requirements/dependencies:
# - amixer
# - brightnessctl
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# - libnotify (notify-send)
panic () {
>&2 echo "Syntaxis: notify [-vb] [-t <timeout>] [-p <value>] [<title> <message>]"
exit 1
}
# Get options
while getopts ":bvt:p:" options; do
case "${options}" in
b)
value=$( brightnessctl | grep -o "[0-9]*%" | tr -d '%' )
title="Brightness: ${value}%"
category='sysinfo'
;;
v)
# Get volume (don't use pamixer because that is way slower)
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value=$( amixer sget 'Master' \
| grep -o '\[[0-9]*%\]' \
| tr -d '][%' \
| head -n1 )
title="Volume: ${value}%"
category='sysinfo'
# If audio disabled, set value to zero.
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if [ "$( amixer sget 'Master' | grep -o '\[\(on\|off\)\]' | head -n1 )" == "[off]" ] ; then
title="Volume: ${value}% (Disabled)"
value=0
fi
;;
t)
timeout="${OPTARG}"
;;
p)
value="${OPTARG}"
;;
*)
panic
;;
esac
done
shift $((OPTIND - 1))
# Check arguments
if [ $# -gt 2 ] ; then
panic
elif [ $# -gt 0 ] ; then
title="${1}"
message="${2:-}"
fi
# Build command string
arguments=""
if [[ ! -z "${category}" ]] ; then
arguments+=" -c ${category}"
fi
if [[ ! -z "${timeout}" ]] ; then
arguments+=" -t ${timeout}"
fi
if [[ ! -z "${value}" ]] ; then
arguments+=" -h int:value:${value}"
fi
notify-send "${title}" "${message}" ${arguments}