#!/bin/bash
basedir="/usr/local/mysql/"   # 必须是一个不存在的目录
datadir="/home/mysql/"   # 必须是一个不存在的目录
install_package="mysql-5.6.33-linux-glibc2.5-x86_64.tar.gz"
package=`echo $install_package | sed  's/.tar.gz//g'`
name="mysql" # service $name start 需要给一个可识别的名字
install_port=3306  # 大于0的整数
# 检查
[ "$basedir" == ""  ] || [ "$datadir"  == "" ] && echo -e "\033[31mERROR: BASEDIR OR DATADIR IS NULL\033[0m" && exit
ls $install_package | grep "5.6"  &> /dev/null
[ $? -ne 0  ] && echo  -e "\033[31mERROR: VERSION MUST 5.6\033[0m" && exit
[ -d  $basedir  ] || [ -d $datadir ] && echo -e "\033[31mERROR: PATH IS EXIST\033[0m" && exit
[ "$name" == ""  ] && echo -e "\033[31mERROR: SEVICE NAME IS NULL\033[0m" && exit
[ -f "/etc/init.d/$name" ]  && echo -e "\033[31mERROR: SERVICE NAME IS EXIST\033[0m" && exit
if [  $install_port -gt 0 ]
then
    echo "check success! install"
else
    echo -e "\033[31mERROR: PORT ERROR \033[0m" && exit
fi
id mysql &>/dev/null
[  $? -ne 0  ] && useradd -s /sbin/nologin mysql
# 安装
tar xf $install_package
mkdir $datadir -p

mv $package $basedir

cd $basedir/scripts/
chown mysql:mysql $basedir -R
chown mysql:mysql $datadir -R
yum install autoconf  libaio-devel -y

./mysql_install_db --user=mysql --datadir=$datadir --basedir=$basedir

# 生成启动脚本


cat << EOF > /etc/init.d/$name
#!/bin/bash
BASEDIR=$basedir
DATADIR=$datadir
CNF=\$BASEDIR/my.cnf
PASSWD=""
PORT=$install_port
case "\$1" in
"start")
    cd \$BASEDIR
    ./bin/mysqld_safe --defaults-file=\$CNF --user=mysql &
;;
"stop")
    \$BASEDIR/bin/mysqladmin -p\$PASSWD -h'127.0.0.1' -P\$PORT shutdown
;;
"connect")
    if [ "\$PASSWD" == ""   ]
    then
        \$BASEDIR/bin/mysql -h127.0.0.1 -P\$PORT
    else
        \$BASEDIR/bin/mysql -p\$PASSWD -h127.0.0.1 -P\$PORT
    fi
;;
*)
    echo "input start/stop/connect"
;;
esac
EOF
chmod +x /etc/init.d/$name
# 重写配置文件
cat << EOF > $basedir/my.cnf
[mysqld]
datadir=$datadir
basedir=$basedir
port=$install_port
socket=$datadir/mysql.sock
symbolic-links=0
server-id=1
log-bin=binlog
max_connections=200
# lower_case_table_names = 1
innodb_print_all_deadlocks = 1
slow_query_log
long_query_time=1
log_warnings = 0

[mysqld_safe]
log-error=$datadir/mariadb.log
pid-file=$datadir/mariadb.pid
EOF



echo -e "\033[32mINSTALL SUCCESS"
echo "INPUT  service $name start | stop | connect"
echo -e "\033[33mMUST MODIFY /etc/init.d/$name    \$PORT \$PASSWD\033[0m"