#!/bin/bash

#a simple backup script that uses rsync

#arg 1: source path: the path to backup. 
#arg 2 (optional): destination path: absolute path on host to put src
#arg 3: rsync args
#if no destination given, src will be pushed to the given src inside of path described by ${HB_BACKUP_DIR} env var, if it exists, otherwise it will be inside of remote user's home dir

d=`date +%Y-%m-%d_%H:%M:%S`

if [[ -z $1 ]]; then
	echo 'you must at least provide a source dir'
	exit 0
fi

src_path="$1"
#dest='hb:/var/stor/personal/backup/'
dest_host="hb"
if [[ $HB_BACKUP_DIR ]]; then
    dest_path=$HB_BACKUP_DIR"/"${src_path}
else
    dest_path="~/"${src_path}
fi

rsargs=''

if [[ $2 ]]; then
	echo 'using destination '${2}
	dest_path=${2}
fi

if [[ $3 ]]; then
	shift 2
	rsargs=${@}	
fi

dest=$dest_host":"$dest_path
if [[ ${dest_path: -1} == "/" ]]; then
    ssh hb mkdir -p ${dest_path}    
else
    dest_parent_dir=`echo $dest_path | rev | cut -d'/' -f2- | rev`
    ssh hb mkdir -p ${dest_parent_dir}
fi
echo "NEW BACKUP $d ${src_path} -> ${dest}" >> /var/log/datasync.log
rsync -arvzP --protect-args -e ssh --update ${src_path} ${dest} ${rsargs} >> /var/log/datasync.log
echo "" >> /var/log/datasync.log


#if [[ TODO "%"` ]]; then
#	echo "Complete."
#else
#	echo "!! ${src} not uploaded. Server version is newer."
#fi