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#!/bin/sh

verbose=
dryrun=

usage="
$0 [OPTIONS] [source]\n
 -v  verbose\n
 -d  dryrun\n
 -l  list boot sources\n
 -h  help"

for i in /env/boot/*; do
	basename $i s
	sources="$sources$s "
done

while getopt "vdhl" opt; do
	if [ ${opt} = v ]; then
		if [ -n "$verbose" ]; then
			verbose="-v -v"
		else
			verbose="-v"
		fi
	elif [ ${opt} = d ]; then
		dryrun=1
	elif [ ${opt} = l ]; then
		echo -e "boot sources:\n$sources"
		exit 0
	elif [ ${opt} = h ]; then
		echo -e "$usage"
		exit 0
	fi
done

if [ $# = 0 ]; then
	scr="$global.boot.default"
else
	scr="$1"
fi

if [ -n "$scr" ]; then
	if [ ! -f /env/boot/$scr ]; then
		echo -e "/env/boot/$scr does not exist.Valid choices:\n$sources"
		exit
	fi
	/env/boot/$scr
fi

if [ -n "$dryrun" ]; then
	exit 0
fi

bootm $verbose