ghost.backup

#! /bin/bash
# -----
# Ghost.org blogging platform backup script
# This script is a part of SCI Ghost Toolkit
#
# Usage: ghost.backup /path/to/ghost /way/to/backup 
#        ghost.backup /path/to/ghost
# 
# Note: By default, script backups ghost to /var/backups/ghost
# -----
# Author: Adanos Flamel, SCI
#         adanos@stormcage.ru
# -----

# ----- Checking run mode ----- Begin -----
if [[ $(echo $* | grep -e "--chain") ]]; then
	backupmode=0
else
	backupmode=1
fi
# ----- Checking run mode -----  End  -----

# ----- Checks for standalone mode ----- Begin -----
if [[ backupmode -eq 1 ]]; then
	# Some configuration things
	PATH=$PATH:.

	# ----- Print usage message----- Begin -----
	if [[ $(echo $* | grep -e "--help") ]]; then
		. ghost.assets backup_help
		exit $?
	fi
	# ----- Print usage message -----  End  -----

	# ----- Require arguments ----- Begin -----
	if [[ $* == "" || $# < 1 ]]; then
	    echo -e "[Ghost Backup]: Missing arguments.\n" \
	            "Usage: ghost.backup /path/to/ghost \n" \ 
	            "       ghost.backup /path/to/ghost /way/to/backup \n"
	    exit 2
	fi
	# ----- Require arguments -----  End  -----

	# ----- Require root access ----- Begin -----
	if [[ $UID != 0 ]]; then
	    echo "[Ghost Backup]: Please run this script with sudo:"
	    echo "sudo $0 $*"
	    exit 3
	fi
	# ----- Require root access -----  End  -----

	# ----- Setup paths ----- Begin -----
	ghostpath=$1 # Path to ghost installation
	if [[ -z $2 ]]; then
		ghostbackuppath="/var/backups/ghost"
	else
		ghostbackuppath=$2
	fi

	if [[ -z $ghostworkpath ]]; then
		ghostworkpath="/tmp/ghosttemp"
		mkdir -p $ghostworkpath
	fi
	# ----- Setup paths -----  End  -----
fi
# ----- Checks for standalone mode -----  End  -----

# ----- The script itself ----- Begin -----
ghostbackupdate=`date +"%Y%m%d"`

# Checking backup path is specified
if [[ ! -z $(echo $* | grep -e "--chain") && -z $2 ]]; then
	ghostbackuppath="/var/backups/ghost"
fi

echo "[Ghost Backup]: Copying files to $ghostworkpath"
rsync -Aax $ghostpath/content         $ghostworkpath/

if [[ $? -ne 0 ]]; then
	echo "[Ghost Backup]: Failed copying content."
	exit 6
fi

rsync -Aax $ghostpath/config.js       $ghostworkpath/

if [[ $? -ne 0 ]]; then
	echo "[Ghost Backup]: Failed copying config."
	exit 7
fi

echo "[Ghost Backup]: Archiving files to $ghostbackuppath"
if [[ ! -d $ghostbackuppath ]]; then
	mkdir -p $ghostbackuppath
fi

tar -caf $ghostbackuppath/ghost-`basename $ghostpath`-backup-$ghostbackupdate.tar.bz2 $ghostworkpath

if [[ $? -ne 0 ]]; then
	echo "[Ghost Backup]: Archiving failed."
	exit 8
else
	echo "[Ghost Backup]: Backup successfull."
fi
# ----- The script itself -----  End  -----

# Clear working folder case standalone
if [[ backupmode -eq 1 ]]; then
	echo "[Ghost Backup]: Removing working directory."
	rm -rf $ghostworkpath
fi