When you’ve got lots of temporary files on a unix server and you never clean them out this might help. Remove files that were created more than 14 days ago like so…
1find . -mtime +14 -exec rm {} \;
“www.” for the most part is a pointless idea. We all know what a web page is. The “www.” prefix is outdated although necessary evil. I guess the same could be said of http:// and https:// for web requests …we all know what it means.
Here’s a quick snippet of my apache config to push all traffic from www.loathso.me to loathso.me
1<VirtualHost *> 2 ServerName www.loathso.me 3 ServerAlias loathso.me 4 DocumentRoot /var/www/loathsome/current/public/ 5 RackEnv production 6 RewriteEngine on 7 RewriteCond %{HTTP_HOST} ^www\.loathso\.me 8 RewriteRule ^/(.*)$ http://loathso.me/$1 [R=permanent,L] 9 CustomLog /var/log/apache2/loathsome-access.log common 10 ErrorLog /var/log/apache2/loathsome-error.log 11</VirtualHost>
MySQL doesn’t have a built in type for an IP Address, PostgreSQL does though. You’ll find that ip addresses are often stored as an integer. You can translate between an integer and ip address and vice versa with a built in MySQL functions. In a recent piece of work we had to detect a user’s country code based on their incoming IP via against a range of IPs (stored as integers).
1mysql> SELECT INET_ATON('192.168.0.1'); 2+--------------------------+ 3| INET_ATON('192.168.0.1') | 4+--------------------------+ 5| 3232235521 | 6+--------------------------+ 71 row in set (0.00 sec) 8 9mysql> SELECT INET_NTOA('3232235521'); 10+-------------------------+ 11| INET_NTOA('3232235521') | 12+-------------------------+ 13| 192.168.0.1 | 14+-------------------------+ 151 row in set (0.00 sec)
Wouldn’t it be nice to get a Rails model to accept an ip address and store it as an integer. Well its basically serializing the ip address and using Rails 3.1’s new serialization api we can do the following.
Basicially a class with two methods IpEncoder#load encodes its input, and IpEncoder#dump decodes it. Then you simply add the following to your model.
And there you have it.
I was mulling at the end of last year that while I’ve been programming for far too many years now its been for the most part web development and databases. But I don’t know how to build a GUI, and least of all one that would be cross platform. Time to learn.
I’ve just picked myself up a copy of O’Reilly Java Swing 2nd Edition which, while its old, should help me get to grips with building my first GUIs.
As an interesting learning process I’ve decided that while of course this is all about Java that I am going to read the book in Java, I shall translate it all into JRuby since I use Ruby as my programming language of choice. So I’ll learn three skills in one;
I think the best way to pick it up is to go through every last example until it becomes second nature so all the Java AWT and Swing examples I come across in the book I shall be adding in a new jruby-swing github repository are here as JRuby.
https://github.com/braindeaf/jruby-swing
In fact here’s the first example
https://raw.github.com/braindeaf/jruby-swing/master/chapter2/ToolbarFrame1.rb
Desktop app here I come.
Needed to get rid of PostegreSQL on start up. That’s freeing up 8Mb of memory….its better than nothing.
1rails@cool-server-name-001:~$ sudo update-rc.d -f postgresql-8.3 remove 2 Removing any system startup links for /etc/init.d/postgresql-8.3 ... 3 /etc/rc0.d/K21postgresql-8.3 4 /etc/rc1.d/K21postgresql-8.3 5 /etc/rc3.d/S19postgresql-8.3 6 /etc/rc4.d/S19postgresql-8.3 7 /etc/rc5.d/S19postgresql-8.3 8 /etc/rc6.d/K21postgresql-8.3
Just signed up to a new New Relic account today for a client and got a free t-shirt to book. Now its not that I’m without clothes but I do like grey and I’m not afraid to admit I am a nerd. So why the hell not. All you need to do is sign up and deploy your first app which isn’t that much of a bother really and I was going to do it anyway.
Sign up for New Relic and get your free t-shirt and that also gives you 10% off your first bill which is nothing if you use the free version and $50 off my own bill that I am not paying anyway because I’m using the free version :)
Its all about the FREE.
Just a few resources for the almighty JRuby Desktop app I will one day build, maybe.
Installed latest Rubygems which broken my dev environment.
1Rob-Laceys-MacBook-Pro:app roblacey$ ./script/rails s 2/Library/Ruby/Site/1.8/rubygems/specification.rb:990:in `date=': invalid date format in specification: "2011-9-23" (Gem::InvalidSpecificationException) 3 Â Â from /Users/roblacey/repos/app/ruby/1.8/bundler/gems/compass-cb709350942f/compass.gemspec:7 4 Â Â from /Library/Ruby/Site/1.8/rubygems/specification.rb:1346:in `initialize' 5 Â Â from /Users/roblacey/repos/app/ruby/1.8/bundler/gems/compass-cb709350942f/compass.gemspec:4:in `new' 6 Â Â from /Users/roblacey/repos/app/ruby/1.8/bundler/gems/compass-cb709350942f/compass.gemspec:4
One to remember next time something screwy happens, and I am to lazy to use rvm
In order to start moving with building Warcraft AddOns you might want to extract the Blizzard UI Code and Art bundles. A little bit fiddly but…
1/Applications/World\ of\ Warcraft/World\ of\ Warcraft.app/Contents/MacOS/World\ of\ Warcraft -console
On the login screen hit /~ to open the console and type

You should now have two new directories in your World Of Warcraft (/Applications/World of Warcraft/) BlizzardInterfaceArt and BlizzardInterfaceCode directory.
1Rob-Laceys-MacBook-Pro:World of Warcraft roblacey$ ls -la 2total 3944 3drwxrwxrwx 21 roblacey admin 714 24 May 08:59 . 4drwxrwxr-x+ 71 root admin 2414 22 May 11:45 .. 5-rw-r--r--@ 1 rl admin 12292 24 May 08:59 .DS_Store 6drwxrwxrwx 3 rl admin 102 3 May 18:35 Background Downloader.app 7drwxrwxrwx 3 rl admin 102 3 May 18:35 Blizzard Updater.app 8drwxrwxrwx 3 rl admin 102 24 May 08:59 BlizzardInterfaceArt 9drwxrwxrwx 3 rl admin 102 24 May 08:59 BlizzardInterfaceCode 10drwxrwxrwx 4 rl admin 136 21 Apr 23:50 Cache 11drwxrwxrwx 30 rl admin 1020 24 May 08:59 Data 12drwxrwxrwx 2 rl admin 68 18 Apr 22:19 Errors 13drwxrwxrwx 3 rl admin 102 22 Apr 00:03 Interface 14drwxrwxrwx 11 rl admin 374 22 May 11:45 Logs 15drwxrwxrwx 2 rl admin 68 3 May 21:02 Movies 16-rwxrwxrwx 1 rl admin 67140 22 May 11:45 Patch.html 17drwxrwxrwx 11 rl admin 374 22 May 11:50 Updates 18drwxrwxrwx 5 rl admin 170 22 May 11:56 WTF 19-rwxrwxrwx 1 rl admin 177 24 May 08:59 WoW.mfil 20-rwxrwxrwx 1 rl admin 1927052 22 May 11:45 WoW.tfil 21drwxrwxrwx 3 rl admin 102 3 May 18:35 World of Warcraft Launcher.app 22drwxrwxrwx 3 rl admin 102 3 May 18:35 World of Warcraft Repair.app 23drwxrwxrwx 3 rl admin 102 22 May 11:45 World of Warcraft.app