#!/bin/bash
#
# FILENAME: Upgrade_OS.sh
# AUTHOR: WhiteStar Magic @ OSGrid
# DATE: October 24, 2010 
# REVISION: 0.4 (4th prototype)
#
# R.0.3 corrected syntax and added some improvements as suggested by Dene Sparta @ OSG
# NOTE! This is untested 
#
# DESCRIPTION: 
# Based on an initial script by Dene Sparta @ OSG and expanded / modularized.
# Upgrades OpenSim Instances from SOURCE Website.
# Creates a bin_NEW with the upgraded version and leave original bin intact to allow for review
# and mods prior to startup. 
# INI`s change so they MUST be reviewed prior to initializing
#
# An Option was added to AUTO-START the Instance AFTER UPGRADE 
# !! WARNING !! This would start the instance with the Original INI Files from the previous version.
# !! The INI files change constantly and should always be reviewed / compared PRIOR to Startup
# !! See bottom of === PROCESS Upgrades === section
#
# INSTALLATION:
# save this script into a convenient folder
# if you have OpenSim Instances, for example /opensim/instanceA & /opensim/instanceB
# I suggest installing it in /opensim
#
# RUNNING:
# Note that BEFORE RUNNING THIS, the Instances MUST BE SHUTDOWN !
# Run with the following command bash Upgrade_OS.sh
# can be installed in another directory, Adjust the script accordingly
#
# ======================================================================================
#
# GENERAL VARIABLES THAT MUST BE SET:
#
# where to store your upgrade repository
OS_UPD_REPO="/AUTO_UPDATE"
# website source path
OS_WEB_SRC="http://download.osgrid.org/autowin" 
# filename to get from website
#
# http://download.osgrid.org/ shows LATEST Zip File available
# ======================================================================================
#
# ================
# === ROUTINES ===
# ================
# ======================
# === PROCESS UPDATE ===
# ======================
GET_update()
{
# --- test to see if backup folders exist, if not make them
if [ ! -e "${OS_UPD_REPO}" ]; then mkdir -v ${OS_UPD_REPO}; fi
#
# change to the UPDATE REPOSITORY, get the source ZIP file from the web 
cd ${OS_UPD_REPO}
#
#get the latest current rev ZIP line from OSGrid and write to file cur_rev
wget -Ocur_rev ${OS_WEB_SRC}
#
wget -nc -icur_rev
#
}
# ========================
# === PROCESS Upgrades ===
# ========================
DO_update()
{
# change dir to OpenSim Instance & CREATE bin_NEW for Updated version
cd ${OS_Instance}
if [ ! -e "${OS_Instance}/bin_NEW" ] 
then 
mkdir -v ${OS_Instance}/bin_NEW
else
rm -rf ${OS_Instance}/bin_NEW
mkdir -v ${OS_Instance}/bin_NEW
fi
#
# unpack the new rev to /bin_NEW and move to correct position
unzip ${OS_UPD_REPO}/${OS_UPD_NAME} -d ${OS_Instance}/bin_NEW
mv -f ${OS_Instance}/bin_NEW/bin ${OS_Instance}/bin_NEW
#
# rename the NEW FILES (ini`s etc) files to preserve them for review
mv -f ${OS_Instance}/bin_NEW/OpenSim.ini ${OS_Instance}/bin_NEW/UPG_OpenSim.ini
mv -f ${OS_Instance}/bin_NEW/config-include/FlotsamCache.ini ${OS_Instance}/bin_NEW/config-include/UPG_FlotsamCache.ini
mv -f ${OS_Instance}/bin_NEW/config-include/Grid.ini ${OS_Instance}/bin_NEW/config-include/UPG_Grid.ini
mv -f ${OS_Instance}/bin_NEW/config-include/GridCommon.ini ${OS_Instance}/bin_NEW/config-include/UPG_GridCommon.ini
mv -f ${OS_Instance}/bin_NEW/config-include/GridHypergrid.ini ${OS_Instance}/bin_NEW/config-include/UPG_GridHypergrid.ini
mv -f ${OS_Instance}/bin_NEW/config-include/Standalone.ini ${OS_Instance}/bin_NEW/config-include/UPG_Standalone.ini
mv -f ${OS_Instance}/bin_NEW/config-include/StandaloneHypergrid.ini ${OS_Instance}/bin_NEW/config-include/UPG_StandaloneHypergrid.ini
echo "RENAMED the NEW /bin_NEW/config-include/*.INI files to UPG_filename.ini for review"
#
# copy the original ini files from previous version
cp -r -u -p ${OS_Instance}/bin/config-include/*.ini ${OS_Instance}/bin/config-include
echo "Transfered the ORIGINAL /bin/config-include/*.INI files to /bin_NEW/config-include"
#
# Transfer the appropriate files over to ready it for operation
cp -r -u -p ${OS_Instance}/bin/Regions/*.* ${OS_Instance}/bin_NEW/Regions
cp ${OS_Instance}/bin/OpenSim.ini ${OS_Instance}/bin_NEW/OpenSim.ini
cp ${OS_Instance}/bin/*.db ${OS_Instance}/bin_NEW/*.db
echo "Transfered the ORIGINAL Critical files to /bin_NEW"
#
# Now we TAR.GZ the Original bin folder
tar --create --gzip --file=${OS_Instance}/${Instance_Name}_OLD_`date +"%Y-%m-%d"`.tar.gz ${OS_Instance}/bin
#
# == ATTENTION == SPECIAL NOTE HERE FOR OPTIONAL COMPLETION ==
# ============================================================
# !!! UNCOMMENT FOLLOWING LINES IF INSTANCES ARE SHUTDOWN AND YOU WISH TO COMPLETE THE SWITCH OVER !!!
# ============================================================
#rm -rf ${OS_Instance}/bin
#mv -f ${OS_Instance}/bin_NEW ${OS_Instance}/bin
#echo "The New Version prepared to start with UN-REVIEWED INI files"
#
#echo we are are starting up the OPENSIM Instance in ${OS_Instance}/bin 
## Uncomment either line below to start appropriate version of OpenSim in screen.
#screen -S ${Instance_Name} -d -m mono OpenSim.exe -gui=true
#screen -S ${Instance_Name} -d -m mono OpenSim.32BitLaunch.exe -gui=true
# ============================================================
}
#
# ##################################
# === PERFORM THE UPGRADE/UPDATE ===
# ==================================
#
GET_update 
# 
# -------------------------
# --- Upgrade Instances ---
# -------------------------
#
Instance_Name=TEST
OS_Instance="/opensim/TEST"
DO_update
#
# !! Repeat and edit as needed !!
#
#Instance_Name=instanceB
#OS_Instance="/opensim/instanceB"
#DO_update
#
#Instance_Name=instanceC
#OS_Instance="/opensim/instanceC"
#DO_update
#
#Instance_Name=instanceD
#OS_Instance="/opensim/instanceD"
#DO_update
#
#################################