!bin/bash

var $1; 

# centos install|unload redis
# 指令:安装[install],卸载[unload]
# 按照http://blog.csdn.net/ludonqin/article/details/47211109指导编写，配置完全和博客中描述一致,如果出现不成功，请根据博客灵活修改，本脚本认为您的Centos已安装gcc,tcl
#本脚本可以初步的实现安装和使用，但根据博客指导出现了redis-serve 命令以及 关闭停止redis相关的命令无法使用--这点会在后续的研究中改善，如果有好的意见可以通过博客中的联系方式找到我
#本脚本长期更新

echo $1;

if [[ "$1" != 'install' && "$1" != 'unload' ]];
then
   echo '请输入指令:安装[install],卸载[unload]';
   exit;
fi

rm -rf /usr/local/bin/redis-sentinel;
rm -rf /usr/local/bin/redis-check-aof;
rm -rf /usr/local/bin/redis-benchmark;
rm -rf /usr/local/bin/redis-cli;
rm -rf /usr/local/bin/redis-server;
rm -rf /usr/local/bin/redis-check-rdb;
rm -rf /etc/redis;
rm -rf /etc/init.d/redis_init_scripts;
rm -rf /etc/init.d/redis;
rm -rf /var/redis;

if [[ "$1" == 'unload' ]];
then
    echo '卸载成功'
    exit;			
fi

if [[ "$1" == 'install' ]];
then
	#下载redis安装包
	rm -rf redis-stable.tar.gz;
	wget http://download.redis.io/redis-stable.tar.gz;

	#解压
	rm -rf redis-stable;
	tar -zxvf redis-stable.tar.gz; 
	chmod -R 775 redis-stable;
	rm -rf redis-stable.tar.gz;

	#编译-安装
	cd redis-stable;
	make;
	make install;

	# 修改配置文件.conf
	##创建目录文件
	mkdir -m 775 /etc/redis;
	cp redis.conf /etc/redis/;
	cp utils/redis_init_script /etc/init.d/;
	mv /etc/init.d/redis_init_script /etc/init.d/redis;
	mkdir /var/redis;
	mkdir /var/redis/data;
	mkdir /var/redis/log;
	mkdir /var/redis/run;
	chmod -R 777 /var/redis/data;
	chmod -R 777 /var/redis/run;
	chmod -R 777 /var/redis/log;
	##修改配置文件，配置参数
	sed -i 's:appendonly no:appendonly yes:g' /etc/redis/redis.conf;
	sed -i 's:pidfile /var/run/redis_6379.pid:pidfile /var/redis/run/redis.pid:g' /etc/redis/redis.conf;
	sed -i 's:daemonize no:daemonize yes:g' /etc/redis/redis.conf;
	sed -i 's:logfile "":logfile /var/redis/log/redis.log:g' /etc/redis/redis.conf;
	sed -i 's:dir ./:dir /var/redis/data:g' /etc/redis/redis.conf;
	##服务器开机自启动配置
	sed -i 'N;2a\# description:  Redis is a persistent key-value database' /etc/init.d/redis;
	sed -i 'N;2a\# chkconfig:   2345 90 10' /etc/init.d/redis;
	sed -i 's:PIDFILE=/var/run/redis_${REDISPORT}.pid:PIDFILE=/var/redis/run/redis.pid:g' /etc/init.d/redis;
	sed -i 's:CONF="/etc/redis/${REDISPORT}.conf":CONF="/etc/redis/redis.conf":g' /etc/init.d/redis;
	##启动脚本权限
	chmod +x /etc/init.d/redis;
	##注册服务
	chkconfig --add redis;

	##删除文件
	rm -rf ../redis-stable;
	echo '安装成功';
fi