dotfiles/network/NAS_mounts/fix_mounts.sh

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#!/bin/sh
#
# fix_mounts.sh - ensures autofs mounts are mounted by a user and not 'root'
#
# copyright 2016 scot.mcphee@gmail.com
#
# GPL 3.0 LICENCE https://www.gnu.org/licenses/gpl.txt
#
# This file should be run by 'root' as the 'sudo' should execute without stopping
# to ask for your password, unless you run this manually. See the
# org.autonomous.fixmounts.plist file which accompanies it. This plist executes
# the script every 15 seconds. I put mine in /Library/LaunchDaemons where it will
# be run as root whether there is a user logged in or not.
#
# autofsname - the name of the file in /etc/ that is specified in auto_master
# e.g.
# /- auto_nas -nosuid
# then it's 'auto_nas'
#
# mnt_usr - the userid of the user (you) that you want the mounts for
# mnt_pnt - the directory in the user dir where the mounts are
# t_mnt - using $mnt_usr and $mnt_pnt; the full path to the mounts
# mounts - space-separated list of mounts expected in $t_mnt
autofsname=auto_nas
mnt_usr=[[USERNAME]]
mnt_pnt=mnt
t_mnt=/Users/${mnt_usr}/${mnt_pnt}
mounts="music photo video NAS"
# don't change below here unless you know what you are doing with shell scripts.
all_mounts=`/sbin/mount | /usr/bin/grep $t_mnt | /usr/bin/grep -v "map $autofsname on $t_mnt"`
d=`/bin/date`
echo "fix_mounts [$d] checking $t_mnt for $mounts"
for mt in $mounts;
do
full_mount=${t_mnt}/${mt}
if [[ $all_mounts == *"$full_mount"* ]];
then
# it is mounted, let us see if it mounted by the user.
mm=`/bin/echo "$all_mounts" | /usr/bin/grep $full_mount`
if [[ ! $mm =~ on.$full_mount.*mounted.by.$mnt_usr ]]; then
echo "fix_mounts [$d] Remounting: $full_mount - because $mnt_usr not mounted $mm"
ps -e | grep automounted
if ps -e | grep automounted | grep -v grep; then
echo "Automount in progress. Aborting!"
exit 0
fi
/usr/bin/sudo /sbin/umount $full_mount
# if resource is busy force unmount with diskutil DANGER
if [ ! $? ]; then /usr/sbin/diskutil unmount force $full_mount; fi
/usr/bin/sudo -u $mnt_usr cd $full_mount
fi
else
echo "fix_mounts [$d] Not mounted: $full_mount - ignoring"
fi
done