Getting the Most out of Bundler Groups - iain.nl
Did you know you can create as many groups in Bundler as you like? You can and I think you should! Let me show you some ways I use groups to clean up my Gemfile. Why groups? Speed: Requiring gems can get slow, even more so when you have a lot of them. Groups help you require the gems only when they are needed. This is especially true if you use Ruby 1.9.2. In this version of Ruby, the require stat
Never create Ruby strings longer than 23 characters - Pat Shaughnessy
Looking at things through a microscope sometimes leads to surprising discoveries Obviously this is an utterly preposterous statement: it’s hard to think of a more ridiculous and esoteric coding requirement. I can just imagine all sorts of amusing conversations with designers and business sponsors: “No... the size of this <input> field should be 23... 24 is just too long!” Or: “We need to explain t
Practicing Ruby - Issue #11: Uses for Modules (4 of 4)
Originally published as part of the Practicing Ruby newsletter on December 21, 2010. Most of these issues draw inspiration from discussions and teaching sessions at my free online school, Ruby Mendicant University. You should follow @seacreature on twitter if you want to keep up with my more recent projects. Today we’re going to wrap up this series on modules by looking at how mixins can be useful
Practicing Ruby - Issue #10: Uses for Modules (3 of 4)
Originally published as part of the Practicing Ruby newsletter on December 14, 2010. Most of these issues draw inspiration from discussions and teaching sessions at my free online school, Ruby Mendicant University. You should follow @seacreature on twitter if you want to keep up with my more recent projects. In the last two issues, we covered mixins and namespacing, two of the most common uses for
Practicing Ruby - Issue #9: Uses for Modules (2 of 4)
Originally published as part of the Practicing Ruby newsletter on December 10, 2010. Most of these issues draw inspiration from discussions and teaching sessions at my free online school, Ruby Mendicant University. You should follow @seacreature on twitter if you want to keep up with my more recent projects. Using Mix-ins to Augment Class Definitions Although knowing how to use modules for namespa
Practicing Ruby - Issue #8: Uses for Modules (1 of 4)
Originally published as part of the Practicing Ruby newsletter on December 8, 2010. Most of these issues draw inspiration from discussions and teaching sessions at my free online school, Ruby Mendicant University. You should follow @seacreature on twitter if you want to keep up with my more recent projects. Modules are part of what makes Ruby’s design beautiful. However, since they do not have a d
Demonstration of the effect on data safety when removing Ruby/Python GIL | Merbist
After my recent RubyConf talk and follow up post addressing the Ruby & Python’s Global Interpreter Lock (aka GVL/Global VM Lock). a lot of people asked me to explain what I meant by “data safety”. While my point isn’t to defend one approach or the other, I spent a lot of time explaining why C Ruby and C Python use a GIL and where it matters and where it matters less. As a reminder and as mentioned
How to Add CSS Customization to a WordPress Widget | Merbist
Merbist.com is a web that contains a collection of tutorials for making simple applications, android development, and programming languages. Most sidebar widgets on WordPress usually have the same style according to the theme. It’s okay if all the widgets that appear have the same priority or level of importance. However, in reality, some widgets are of higher importance than other widgets, so we
Merbist
Creativity is a characteristic that we possess all, to values more or less high. And as with everything, the more you stimulate it, the more it evolves. Be and to become creative is not a question of the genome. In effect, we can consider creativity like a sense in it even though we must stimulate on a daily basis to be as effective as possible. The profession of advertising, more than in others f
A Unit Testing Framework In 44 Lines Of Ruby
Late last year I attended some workshops which were being run as part of the YOW Melbourne developer conference. Since the workshops were run by @coreyhaines and @jbrains, TDD was a prominent part. Normally this would not be an issue, but in a spectacular display of fail (considering it was a developer conference in 2010), the internet was hard to come by, which left me and my freshly installed Li
How to Marshal Procs Using Rubinius
The primary reason I enjoy working with Rubinius is that it exposes, to Ruby, much of the internal machinery that controls the runtime semantics of the language. Further, it exposes that machinery primarily in order to enable user-facing semantics that are typically implemented in the host language (C for MRI, C and C++ for MacRuby, Java for JRuby) to be implemented in Ruby itself. There is, of co
Don’t be terrified of building native extensions! - Pat Shaughnessy
It's time for all Ruby developers to confront their worst fear... One of the scariest moments in the life of a Ruby developer is seeing that dreaded message appear as you try to install a new gem: Building native extensions. This could take a while.... As the console output suddenly hangs, you feel a horrible, sinking sensation of fear in your stomach: something truly bad is about to happen! Then
Besides being faster, what else is new in Bundler 1.1? - Pat Shaughnessy
Besides being faster, what else is new in Bundler 1.1? Three weeks ago I explained why Bundler 1.1 will be much faster than Bundler 1.0, which is clearly its most important new feature. However, there are a few new commands and options the Bundler team implemented in version 1.1 that can help you better manage and sort through the gems you have installed on your development computer and servers. B
Bundler’s Best Kept Secret - Pat Shaughnessy
This week I just discovered Bundler’s best kept secret: the bundle viz command will generate a network graph showing the dependencies among all the different gems used by your Ruby app. For example, the image on the left is a portion of the gem dependency graph for a vanilla Rails 3.1 app. Click here to see the entire, uncropped dependency graph. The gems actually called out in your Gemfile are di
Why Bundler 1.1 will be much faster - Pat Shaughnessy
If you’ve worked on a Rails 3 application during the past year or so you’ve probably noticed that running bundle install or bundle update can often take a long, long time to finish. The terminal seems to hang for 30 seconds or more after displaying “Fetching source index for http://rubygems.org/.” Well I have some good news for you: the smart people behind Bundler and RubyGems.org have come up wit
How Ruby is beating Python in the battle for the Soul of System Administration
Roughly three years ago I purchased the book "Python for Unix and Linux System Administration" and it convinced me that Python would be the default scripting language for linux system administrators for the foreseeable future. I was working on the One Laptop Per Child project at the time, where Python was the lingua franca. It seemed that Red Hat was using Python for almost every new project. Furt
What Ruby’s ||= (Double Pipe / Or Equals) Really Does
Ruby Weekly is a weekly newsletter covering the latest Ruby and Rails news. In Rubyists Already Use Monadic Patterns, Dave Fayram made a passing reference to using ||= to set a variable's value if its value were 'Nothing' (false or nil in Ruby). The resulting Reddit quickly picked up on his definition (which was fixed later) and argued about ||='s true meaning which isn't as obvious as many Rubyis
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Practicing Ruby - Issue #10.5: Addendum to Uses For Modules, Part 3
Let Isaac help you build IRC bots
How does Bundler bundle? - Pat Shaughnessy