#!/bin/bash
# by newrain
# time 2019-11-28
# lv 2.0
level=5.7
password="QianFeng@123"
remote_user="remote"
remote_passwd="QianFeng@123"
unset c
color(){
    declare -A c=([Error]=31 [Success]=32 [Warning]=33 [Info]=34)
    #echo -e "\033[${c[$1]}m[`date +%T`]($1)  $2\033[0m"
    printf "\033[${c[$1]}m%-10s%-10s %-30s\033[0m\n" "[`date +%T`]" "($1)" "$2"
	sleep 0.5
}

color Info "此脚本用于yum 安装mysql"
color Warning "此脚本将删除所有mysql数据，如需备份请ctrl+c终止脚本，程序将在3秒后执行"
sleep 3
if [[ $UID -ne 0 ]];then
	color Warning "使用root 执行此脚本"
	exit 1
fi

color Warning "清理环境"
systemctl stop mysqld mariadb &>/dev/null
yum erase -y `rpm -qa |grep mariadb` 2>/dev/null
yum erase -y `rpm -qa |grep mysql`  2>/dev/null
rm -rvf /etc/my.cnf /var/lib/mysql /var/log/mysql*
userdel -rf mysql &>/dev/null
ping -c1 -w1 www.baidu.com &>/dev/null
if [[ $? -eq 0 ]];then
	if [ ! -f /tmp/.init ];then
		yum install -y https://dev.mysql.com/get/mysql80-community-release-el7-1.noarch.rpm
	fi
else
	color Error "网络错误"
	exit 22
fi
yum -y install mysql-community-server mysql-community-devel --disablerepo mysql80-community --enablerepo mysql57-community --nogpgcheck
systemctl start mysqld
color Warning "启动成功，初始密码如下(mysql5.7前版本没有初始密码)"
passwd=$(grep -o 'root@localhost.*' /var/log/mysqld.log | awk 'END{print $NF}')
mysqladmin -uroot -p$passwd password $password && \
mysql -uroot -p$password -e "grant all on *.* to \"$remote_user\"@'%' identified by \"$remote_passwd\"; flush privileges;"
color Success "安装完成 初始密码为$password"