#!/bin/bash
################################################################## 
#
# Date :  2016/07/15
# Email:  gengjie@outlook.com
# Proj :  xx java项目
#
# 主要功能是更新线上tomcat服务使用.
# 使用此脚本必须配置java用户免密码登录 
# 第一次必须手动将代码clone到BASE_CODE_PATH目录
################################################################## 
. /etc/profile

# 定义此项目所包含的主机,以空格隔开，必须严格遵守
inc_host=("192.168.24.50" "192.168.24.51")

##### *** 定义项目代码存放目录,必须定义正确 ***  ####
CODE_PATH="/app/code/xxxxxx"

# 定义tomcat实例目录
Tomcat_PATH="/usr/local/tomcat"

# 定义git分支,默认是master分支
CODE_BRANCH=‘master‘

# 定义编译配置文件,生产环境默认应是product,此处是pom.xml文件中定义
MVN_CONF="product"

# 获取需要更新的主机IP
U_host="$1"

# Define help
usage() {
    echo
    echo -e "   Usage : sh ./`basename $0` ipaddress"
    echo
}

code_pull() {

    echo "[Info] --->>> 项目开始更新代码... <<<---"

    cd $CODE_PATH
    git checkout $CODE_BRANCH
    git pull -u origin master:master 

    if [ $? -ne 0 ];then
        echo "Git Pull Code Error"
        exit 1
    fi

    echo "[Succ] --->>> 项目代码更新完成... <<<---"
    echo 
}


# Define build war
mvn_build() {
    cd $CODE_PATH
    echo "[Info] --->>> 项目开始编译... <<<---"
    mvn clean package -P $MVN_CONF

    if [ $? -ne 0 ];then
        echo "[Error] Compile Error,Please Check Your Code."
        exit 1
    fi
    echo "[Succ] --->>> 项目编译完成... <<<---"
    echo
}

# Define publish 
push_remote() {

    echo "[Info] --->>> 开始发布主机: $U_host  <<<---"

    ssh $U_host "/bin/rm -rf ${Tomcat_PATH}/webapps/ROOT*"
    scp ${CODE_PATH}/target/*.war $U_host:$Tomcat_PATH/webapps/ROOT.war
    ssh $U_host "/bin/sh /app/scripts/stop_tomcat.sh"
    sleep 3
    ssh $U_host "source /etc/profile;/bin/sh ${Tomcat_PATH}/bin/catalina.sh start"  

    echo "[Succ] --->>> 主机: $U_host 发布完成. <<<---"
    echo

}

# check host
check_host() {

    for host in  ${inc_host[@]};
    do
        if [[ "$U_host" == "$host" ]];then
            return 0
        fi
    done
    return 1
}

# Check user
check_user() {
    if [ `whoami` != ‘java‘ ]; then
        echo "---------------------------------------------------"
        echo "You must use the Java user to run this script !!!"
        echo "---------------------------------------------------"
        exit 3
    fi
}

check_user

#check args
if [ $# -ne 1 ];then
    usage;exit 1
fi
if [ $1 == "-h" -o $1 == "--help" ];then
    usage;exit 1
fi

check_host
if [ $? != 0 ];then
    echo "Please check the server ip address to be updated !"
    exit 64
fi

code_pull
mvn_build
push_remote