#!/bin/bash
# 0.1 2012 install elasticsearch VERSION on Ubuntu 12.04 (precise) @tomondev
# 0.2 2013-06-18 upgrade to es 0.90.1 @tomondev
# 0.3 2013-06-27 upgrade to es 0.90.2 @tomondev

VERSION=0.90.2

# Check for dependencies 
check_deps () {
	DEPS="curl unzip"
	echo ".. check deps: $DEPS"
	for i in $DEPS ; do
		dpkg-query -W -f='${Package}\n' | grep ^$i$ > /dev/null
		if [ $? != 0 ] ; then
			echo ".. installing package: $i"
			sudo apt-get install $i -y
		fi
	done  
}

# download configured elasticsearch version, unzip
download_init_elasticsearch () {
	echo ".. download and initialize elasticsearch $VERSION" 
	cd /tmp
	curl -OL -k https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-$VERSION.zip
	unzip elasticsearch-$VERSION.zip
	rm elasticsearch-$VERSION.zip

	sudo mv elasticsearch-$VERSION /usr/local/

	if [ -L /usr/local/elasticsearch ] ; then
		sudo rm /usr/local/elasticsearch
	fi

	sudo ln -s /usr/local/elasticsearch-$VERSION /usr/local/elasticsearch

	# fix wrong permission from the original zip
	sudo find /usr/local/elasticsearch/ -type d -exec chmod 755 {} \;
}

download_init_servicewrapper () {
	echo ".. download and install elasticsearch servicewrapper"
	curl -L https://github.com/elasticsearch/elasticsearch-servicewrapper/tarball/master | tar -xz
	sudo mv *servicewrapper*/service /usr/local/elasticsearch/bin/
	rm -Rf *servicewrapper*

	sudo chown -R root:root /usr/local/elasticsearch-$VERSION

	# install init.d
	if [ -L /etc/init.d/elasticsearch ] ; then
		sudo rm /etc/init.d/elasticsearch
	fi

	sudo /usr/local/elasticsearch/bin/service/elasticsearch install

	if [ -L /usr/local/bin/elasticsearch ]
	then sudo rm /usr/local/bin/elasticsearch
	fi
	sudo ln -s `readlink -f /usr/local/elasticsearch/bin/service/elasticsearch`  /usr/local/bin/elasticsearch

}

### MAIN program
check_deps
download_init_elasticsearch
download_init_servicewrapper

# fix missing logs dir for first wrapper start
sudo mkdir /usr/local/elasticsearch/logs

# eof