#!/bin/bash
#
# script to translate keys (user names) into automount rules.
#

[ "$#" = "1" ] || { echo bad args; exit 1; }

KEYFILE=.ssh/authorized_keys
eval "HOMEDIR=~$1"  # the way that ~ substitution works

#
# if this user has a file .ssh/authorized_keys within their real homedir
# then return that, otherwise use the corresponding file from the vserver.
#
if [ -r "$HOMEDIR/$KEYFILE" ]; then
    OUT=$HOMEDIR/.ssh
elif [ -r "/vservers/$1/home/$1/$KEYFILE" ]; then
    OUT=/vservers/$1/home/$1/.ssh
else
    echo $1 not found in /vservers or /home >&2
    exit 1
fi

echo --bind,-r :$OUT