I am learning Rails 3 @ Ruby on Rails Tutorial by Michael Hartl. A very nice and detail tutorial with many examples for beginners. Highly recommended.

But i got some problems when i tried to setup the Autotest for the RSpec framework. Autotest is a continuous testing tool which run the test suite automatically based on the files you have changed. RSpec is a Behavior Driven Development (BDD) framework for Ruby. After a few hours of struggling, i finally made it work.

Why manually run your tests, when the computer can do it for you! Autotest is a great tool to speed up test-driven development with Ruby or Ruby on Rails.

Autotest makes your coding session even more productive as it automatically runs a subset of your test suite each time you change a file. Autotest is smart – it figures out which subset to run based on the files you’ve changed. Think of it as Continuous Testing.

Autotest source code is well-documented (rdoc) but finding a high level overview online is a little more challenging. This article will get you up and running in no time, so that you may concentrate on writing code. Let’s get Started!

RSpec is a Behaviour-Driven Development tool for Ruby programmers. BDD is an approach to software development that combines Test-Driven Development, Domain Driven Design, and Acceptance Test-Driven Planning. RSpec helps you do the TDD part of that equation, focusing on the documentation and design aspects of TDD.

Thin is a Ruby web server that glues together 3 of the best Ruby libraries in web history:

the Mongrel parser, the root of Mongrel speed and security
Event Machine, a network I/O library with extremely high scalability, performance and stability
Rack, a minimal interface between webservers and Ruby frameworks

Which makes it, with all humility, the most secure, stable, fast and extensible Ruby web server bundled in an easy to use gem for your own pleasure.

RVM allows users to deploy each project with its own completely self-contained and dedicated environment--from the specific version of ruby all the way down to the precise set of required gems to run the application. Having a precise set of gems also avoids the issue of version conflicts between projects, causing difficult-to-trace errors and hours of hair loss. With RVM, NO OTHER GEMS than those required are installed. This makes working with multiple complex applications where each has a long list of gem dependencies efficient. RVM allows us to easily test gem upgrades by switching to a new clean set of gems to test with while leaving our original set intact. It is flexible enough to even have a set of gems per environment or development branch--or even individual developer's taste!

Peter Cooper shows you how to easily and reliably install Ruby 1.9.2 and Rails 3.0 on Ubuntu 10.10. Based roughly around Ryan Bigg's written tutorial at http://ryanbigg.com/2010/12/ubuntu-ruby-rvm-rails-and-you

A simple script that, given a CSS stylesheet and either a .txt file listing URLs of HTML files, or a directory of HTML files, will iterate over them all and list the CSS statements in the stylesheet which are never called in the HTML.

You look around the web today and Ruby and its offspring Rails are the talk of everyone. You see former Java advocates moving over to Ruby. You see former Python developers checking it out. You see people who have never coded checking it out. On top of...

Rails engines are enhanced plugins — capable of sharing code, views and other aspects of your application in a clear and managed way. Engines can be shared publicly, but the real power comes when you use them to share code amongst your own applications.

The ruby-doc.org Ruby documentation project is an effort by the Ruby community to provide complete and accurate documentation for the Ruby programming language.

As I mentioned in my last post, RadRails 0.7.1 now supports Mongrel. So I decided to use Mongrel instead of Webrick for development on my notebook. But it was a bit tricky and took me a bit of googling to get it. As Joe wrote in his post about installi...

So, there are you. Logged into one of your production machines, staring at a rogue Ruby process, and wondering why it has been running away with 90% of the CPU for the last half hour. Sure, you can kill it, but you’d really like to know why it is stu...

RadRails is the Eclipse-based IDE for Ruby on Rails. Learn about installing RadRails, the structure and use of the application window, and the primary steps in developing an application. Ruby on Rails has hit the big time. With that popularity has come...

OK folks, I have finished my write up of an install of the perfect stack on a rimuhosting.com xen VPS. But keep in mind that you can use these instructions to install the rails stack on debian on a dedicated host or a box in your closet. It will work f...

This book is a tutorial and reference for the Ruby programming language. Use Ruby, and you'll write better code, be more productive, and enjoy programming more.

While at odeo we had a feature which i loved. We could release the application quickly, with a single command. We did it often, sometimes two dozen times a day. We optimized it to be super fast, it took about 3 minutes to release to the 4 servers we we...

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