#!/bin/sh
#
# FUSE mount helper
# Petr Klima <qaxi@seznam.cz>
# Thanks to Miklos Szeredi <miklos@szeredi.hu>
# to kick me to the right way
#

VERSION="0.0.2"
PRGNAME=`basename $0`

if [ -z "$HOME" ]; then
    HOME=/root
fi
export HOME

USAGE="${PRGNAME} version ${VERSION}
usage: ${PRGNAME} fusefs_type#[mountpath] mountpoint [FUSE options]

	example: ${PRGNAME} sshfs#root@tux:/ /mnt/tuxssh -o rw
"

function die {
	echo -e "$PRGNAME# $1" >&2
	[ -z "$2" ] && exit 128
	exit "$2"
}

[ "$#" -ge 2 ] || die "${USAGE}"

# for now i have to be same as FUSE mount binary
# should be configurable
eval `echo "$1" | sed -n 's,\(^[^#][^#]*\)\(#\(.*\)\)*,FSTYPE="\1" MOUNTPATH="\3",p'`

export PATH
FSBIN=`which ${FSTYPE} 2>/dev/null` \
	|| die "Can not find FUSE mount binary for FS ${FSTYPE}" 1

# was there an # in $1
[ "$1" = "$MOUNTPATH" ] && MOUNTPATH=""

MOUNTPOINT="$2"
[ -d "${MOUNTPOINT}" ] || die "Directory ${MOUNTPOINT} does not exist"

shift
shift

eval `echo $@ | sed -n "s/\([^,]*,\)*setuid=\([^,]*\).*/SETUID=\2/p"`

ignore_opts='\(-o\|user\|nouser\|users\|auto\|noauto\|_netdev\|setuid=[^,]*\)'

# loop over each mount option and skip all that should be ignored
IFS=","
for OPT in $@; do
	OPT=`echo $OPT | sed "s/^$ignore_opts$/IGNORE/"`
	if [ "$OPT" == "IGNORE" ]; then continue; fi
	OPTIONS="$OPTIONS$OPT,"
done
IFS=" "

# add "-o " and remove trailing comma
OPTIONS="-o `echo $OPTIONS | sed "s/,$//"`"

if test -z "$SETUID"; then
    ${FSTYPE} ${MOUNTPATH} ${MOUNTPOINT} ${OPTIONS}
else
    su - "$SETUID" -c "${FSTYPE} ${MOUNTPATH} ${MOUNTPOINT} ${OPTIONS}"
fi