mnt.sh

#!/bin/sh

NODE="web"
USER="fac"

REMOTE_DIRS=("/home/fac" "/")
REMOTE_DIRS_COUNT=${#REMOTE_DIRS[@]}

DST_DIRS=(./home ./root )
DST_DIRS_COUNT=${#DST_DIRS[@]}

if [ $DST_DIRS_COUNT -ne $REMOTE_DIRS_COUNT ]; then
	echo "err: num of REMOTE_DIRS is not equal to DST_DIRS"
	echo "REMOTE DIRS: ${REMOTE_DIRS[@]}"
	echo "MOUNTED TO:  ${DST_DIRS[@]}"
	exit 1
fi

function is_empty {
	local dir="$1"
	shopt -s nullglob
	local files=( "$dir"/* "$dir"/.* )
	[[ ${#files[@]} -eq 2 ]]
}

case $1 in

	"up"|"1"|"mount")
		i=0
		while [ $i -lt $REMOTE_DIRS_COUNT ]; do
			RD=${REMOTE_DIRS[$i]}
			DD=${DST_DIRS[$i]}
			if [ ! -d $DD ]; then
				mkdir $DD
			fi
			if is_empty $DD
			then
				sshfs $USER@$NODE:$RD $DD 
				if [ $? -ne 0 ]; then
					echo "sorry: smth wrong in sshfs mount $RD"
				else
					echo "OK: $RD at $NODE mounted to $DD"
				fi
			else
				echo "$DD is already mounted"
			fi
			i=$(( i+1 ))
		done
		;;

	"down"|"0"|"unmount")
		i=0
		while [ $i -lt $DST_DIRS_COUNT ]; do
			DD=${DST_DIRS[$i]}
			if is_empty $DD
			then
				echo "$DD is not mounted"
			else
				umount $DD
				if [ $? -eq 0 ]; then
					echo "OK: $DD unmounted"
				fi
			fi
			i=$(( i+1 ))
		done
		;;

	"status"|"s")
		i=0
		while [ $i -lt $DST_DIRS_COUNT ]; do
			DD=${DST_DIRS[$i]}
			if is_empty $DD 
			then
				echo "$DD is not mounted"
			else
				echo "$DD is mounted to ${REMOTE_DIRS[$i]} on $NODE"
			fi
			i=$(( i+1 ))
		done
		;;
	*)
		echo "up | down"
esac