mysqlコマンドラインクライアントの改変と社内LT

社内LT用にmysqlコマンドラインクライアントをネタ改変したものの、たぶん他所でやることもないと思うのでこっちに書いてみる。



やってることはシンプルに単なるネタ。
書き上げたパッチをMySQL 5.6.12に適用してやると、mysqlコマンドラインクライアントに"さん"をつけないと怒る様にできます。

ここから

$ cd mysql-5.6.12

$ wget https://gist.github.com/yoku0825/5932320/raw/d715a496707357a220e5ebde34866cc2af656686/decosuke.patch

$ patch -p0 < decosuke.patch
patching file client/mysql.cc

$ cmake .
..

$ make mysql
..
Scanning dependencies of target mysql
[100%] Building CXX object client/CMakeFiles/mysql.dir/mysql.cc.o
Linking CXX executable mysql
[100%] Built target mysql

使い方。
"さん"をつけずにログインすると(mysqldは何でも良い)「さんをつけろよデコ助野郎！」と言われます。
exitくらいは通すようにしとくべきでしたが、exitですら言われます。

mv, cp, ln(ハードリンクでもシンボリックリンクでも)で"さん"をつけて、実行ファイル名を"mysql-san"にするとまともに動きます。

ただし、"さん"を間違って"mysql-sun"にするとやっぱり怒られます。

$ client/mysql -uroot -p -S /usr/mysql/5.6.12/data/mysql.sock
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 46
Server version: 5.6.12-log Source distribution

Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> status
＿人人人人人人人人人人人人人人人＿
＞　さんをつけろよデコ助野郎！　＜
￣Y^Y^Y^Y^Y^Y^Y^Y^Y^Y^Y^Y^Y^Y￣
mysql> 
mysql> ^DBye

$ cp -ip client/mysql client/mysql-sun

$ client/mysql-sun -uroot -p -S /usr/mysql/5.6.12/data/mysql.sock
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 47
Server version: 5.6.12-log Source distribution

Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> status
＿人人人人人人人人人人人人人人人人人人＿
＞　黙れ小僧！ お前にSunを救えるか！　＜
￣Y^Y^Y^Y^Y^Y^Y^Y^Y^Y^Y^Y^Y^Y^Y^Y^Y￣
mysql> ^DBye

$ cp -ip client/mysql client/mysql-san

$ client/mysql-san -uroot -p -S /usr/mysql/5.6.12/data/mysql.sock
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 48
Server version: 5.6.12-log Source distribution

Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> status
--------------
client/mysql-san  Ver 14.14 Distrib 5.6.12, for Linux (x86_64) using  EditLine wrapper

Connection id:          48
Current database:
Current user:           root@localhost
SSL:                    Not in use
Current pager:          stdout
Using outfile:          ''
Using delimiter:        ;
Server version:         5.6.12-log Source distribution
Protocol version:       10
Connection:             Localhost via UNIX socket
Server characterset:    utf8
Db     characterset:    utf8
Client characterset:    utf8
Conn.  characterset:    utf8
UNIX socket:            /usr/mysql/5.6.12/data/mysql.sock
Uptime:                 3 days 5 hours 27 min 13 sec

Threads: 1  Questions: 599170  Slow queries: 0  Opens: 121  Flush tables: 1  Open tables: 72  Queries per second avg: 2.148
--------------

楽しんでください。
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