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polybar/scripts/lemonbuddy_wrapper
2016-06-14 12:20:18 +02:00

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#!/usr/bin/env bash
set -eu
set -o pipefail
[ $# -eq 0 ] && {
echo "No bar specified" ; exit 1
}
command -v lemonbar >/dev/null || {
echo "Lemonbar is not installed" ; exit 1
}
lemonbuddy="${LEMONBUDDY_EXECUTABLE:-lemonbuddy}"
command -v "$lemonbuddy" >/dev/null || {
echo "Lemonbuddy is not installed" ; exit 1
}
lemonbar="$($lemonbuddy "$@" -x)"
wmname="$($lemonbuddy "$@" -w)"
logfile="${XDG_CACHE_HOME:-$HOME/.cache}/lemonbuddy/${wmname}.log"
logdir="$(dirname "$logfile")"
pipe="$(mktemp -u /tmp/lemonbuddy.in.XXXXX)"
[ -d "$logdir" ] || mkdir -p "$logdir"
exec 2> >(tee "$logfile")
mkfifo "$pipe"
cleanup_proc() {
pid=$1
kill -0 "$pid" 2>/dev/null && {
echo "$pid is running (sending term signal)..."
kill -TERM "$pid" 2>/dev/null
}
}
# shellcheck disable=SC2094
{ $lemonbuddy "$@" -p "$pipe"; kill -TERM $$ 2>/dev/null; } | $lemonbar >"$pipe" &
trap 'cleanup_proc $!' TERM INT
while kill -0 $! 2>/dev/null; do
sleep 0.5s
done
[ -e "$pipe" ] && rm "$pipe"
kill 0; wait