Mini Shell

#!/usr/bin/sh

# This file is part of PipeWire.
# SPDX-FileCopyrightText: Copyright © 2020 Wim Taymans
# SPDX-License-Identifier: MIT

DEFAULT_SAMPLERATE=48000

while getopts 'hr:vs:p:' param ; do
	case $param in
		r)
			PIPEWIRE_REMOTE="$OPTARG"
			export PIPEWIRE_REMOTE
			;;
		v)
			if [ -z "$PIPEWIRE_DEBUG" ]; then
				PIPEWIRE_DEBUG=3
			else
				PIPEWIRE_DEBUG=$(( PIPEWIRE_DEBUG + 1 ))
			fi
			export PIPEWIRE_DEBUG
			;;
		s)
			SAMPLERATE="$OPTARG"
			;;
		p)
			PERIOD="$OPTARG"
			;;
		*)
			echo "$0 - run JACK applications on PipeWire"
			echo " "
			echo "$0 [options] application [arguments]"
			echo " "
			echo "options:"
			echo "	-h                  show brief help"
			echo "	-r <remote>         remote daemon name"
			echo "	-v                  verbose debug info"
			echo "	-s                  samplerate (default \"$DEFAULT_SAMPLERATE\")"
			echo "	-p                  period in samples"
			exit 0
			;;
	esac
done

shift $(( OPTIND - 1 ))

if [ -n "$PERIOD" ]; then
	if [ -n "$SAMPLERATE" ]; then
		PIPEWIRE_QUANTUM="$PERIOD/$SAMPLERATE"
	else
		PIPEWIRE_QUANTUM="$PERIOD/$DEFAULT_SAMPLERATE"
	fi
	export PIPEWIRE_QUANTUM
fi

# shellcheck disable=SC2016 # ${LIB} is interpreted by ld.so, not the shell
LD_LIBRARY_PATH='/usr/${LIB}/pipewire-0.3/jack'"${LD_LIBRARY_PATH+":$LD_LIBRARY_PATH"}"
export LD_LIBRARY_PATH

exec "$@"