#!/bin/bash
#
# vhost-stack
# https://git.stack-source.com/msb/vhost-stack
# MIT License Copyright (c) 2021 Matthew Saunders Brown

# load include file
source $(dirname $0)/vhost.sh

help()
{
  thisfilename=$(basename -- "$0")
  echo "Updates all existing jails."
  echo ""
  echo "usage: $thisfilename"
  echo ""
  echo "  -h    Print this help."
  echo ""
  echo "        Cycles through all existing jails and runs jk_update"
  echo "        for each one. This updates all software installed in"
  echo "        the jails to match the latest versions installed on"
  echo "        the host server. e.g. if php-cli gets update on the"
  echo "        host this syncs that update to all the jails."
  exit
}

# check for -h
if [ -n "$1" ]; then
  if [ $1 == "-h" ]; then
    help
    exit
  fi
fi

# make sure jails dir exists
if [[ ! -e /usr/jails/ ]]; then
  echo "/usr/jails does not exist"
  exit 1
fi

# check if any jails exist
if [ ! "$(ls -A /usr/jails/)" ]; then
  echo "no jails exist"
  exit 1
fi

# check for /usr/sbin/jk_update
if [[ ! -x "/usr/sbin/jk_update" ]]; then
  echo "/usr/sbin/jk_update does not exist or is not executable"
  exit 1
fi

# get list of jails
cd /usr/jails/
jails=(*)

for jail in "${!jails[@]}"
do
  jail=${jails[$jail]}
  echo "updating $jail"
  /usr/sbin/jk_update -j /usr/jails/$jail
  /usr/sbin/jk_update -j /usr/jails/$jail /lib64/
  /usr/sbin/jk_update -s /etc/passwd -s /etc/group -s /etc/ld.so.cache -j /usr/jails/$jail /etc/
  /sbin/ldconfig.real -r /usr/jails/$jail
done