Category Archives: Rails

Ubuntu Karmic Koala is here, time for a fresh install

Since my old Ubuntu lived a long live and saw numerous hacks, I chose to reinstall from scratch, here are the steps I took:

  1. install dotfiles
  2. Skype
  3. Multi-clipboard: sudo apt-get install glipper
  4. Application laucher: sudo apt-get install gnome-do + enable skype plugin
  5. Ruby enterprise
  6. Rubymine + Desktop icon+ Meta key for Rubymine
  7. Mysql: sudo apt-get install mysql-server mysql-client libmysql-ruby
  8. Apache:  sudo apt-get install apache2 apache2-mpm-prefork apache2-prefork-dev
  9. Passenger
  10. SSL for apache/passenger
  11. gem sources -a http://gems.github.com
  12. gems…
  13. Java: sudo apt-get install sun-java6-jre
  14. Git: sudo apt-get install git-core

No more hacks, everything works, very fast startup (~10s), faster graphics (for intel chips) 😀

My new desktop

My new desktop

SSL/HTTPS for Passenger in development on Ubuntu Jaunty

Making a certificate

sudo mkdir /etc/apache2/ssl
sudo /usr/sbin/make-ssl-cert /usr/share/ssl-cert/ssleay.cnf /etc/apache2/ssl/apache.pem
sudo a2dissite default-ssl
sudo a2enmod ssl
sudo /etc/init.d/apache2 restart

Configure passenger

<VirtualHost *:80>
 ServerAlias *.something.com
 RailsEnv development
 DocumentRoot /apps/something/public
</VirtualHost>
<VirtualHost *:443>
 SSLEngine on
 SSLCertificateFile /etc/apache2/ssl/apache.pem
 ServerAlias *.something.com
 RailsEnv development
 DocumentRoot /apps/something/public
</VirtualHost>

host

descriptive raise — tired of exception class/object expected ?

# descriptive raise
# normale: raise 1 == TypeError: exception class/object expected
# now: raise 1 == RuntimeError: 1
class Object
  def raise_with_helpfulness(*args)
    raise_without_helpfulness(*args)
  rescue TypeError => e
    raise_without_helpfulness args.first.inspect if ['exception class/object expected', 'exception object expected'].include?(e.to_s)
    raise_without_helpfulness e
  end
  alias_method_chain :raise, :helpfulness
end

Speeding up Slow Spork Startup for Rails 2.3+

If you noticed spork startup getting slower when switching to Rails 2.3, your not alone 😉

  • Views are eager loaded
  • app/ is eager loaded (when config.cache_classes is on)

Without hack: 18s startup
With hack: 2s startup 😀

Try it

#spec/spec_helper.rb
require 'spork/app_framework/rails'
Spork::AppFramework::Rails::NinjaPatcher.class_eval do
  # views are preloaded  spork must be restarted for view changes
  def delay_eager_view_loading
    puts "removed because i am too slow..."
  end

  # do not preload application files
  # alternatively urn off config.cache_classes
  def delay_app_preload
    ::Rails::Initializer.send(:define_method, :load_application_classes){}
  end
end


Spork.prefork do
  ...