Ruby Weekly is a weekly newsletter covering the latest Ruby and Rails news.

David Heinemeier Hansson says No to Use of Rails Logo

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By Peter Cooper / July 24, 2007

Railsfingersup
(credit: yarrg)
This morning, Pete Forde of Unspace prodded me to write about a new book, “Beginning Rails” by Jeffrey Allan Hardy and Cloves Carneiro Jr. (with Hampton Catlin). And, when I receive my copy from Apress, I will be reviewing it here. Of more immediate interest to me, however, was a note that David Heinemeier Hansson, the creator of Ruby of Rails, had denied the authors the right to use the Rails logo on the front of their book:

Jeff wanted the Rails logo on the cover of the book but was informed by Apress that David Heinemeier Hansson has been “politely resisting” permission to use the logo, and has said in the future, it will only appear on his books. Read More

10 Great New Ruby / Rails Screencasts from July 2007

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By Peter Cooper / July 23, 2007

Randscrcast-1

Railscasts, maintained by Ryan Bates, continues to release one great free screencast after another, with 9 so far this month, although we’re going to include one from June 29 for good measure. We first looked at Railscasts a few months ago, so if you haven’t visited again since, it’s worth it. Here are the latest screencasts:

New Ruby Profiler Released: Supports Rails, threads, IRB, and more

By Peter Cooper / July 22, 2007

Call Graph

Charlie Savage has released the 0.5.x family of ruby-prof, a profiling library for Ruby. We last posted about ruby-prof over a year ago, but 0.5 is a major leap forward with improved or new-found support for:

  • recursive methods
  • Rails
  • threaded applications
  • calling from IRB
  • 64 bit support

Learn more in the release post. Read More

Capistrano 2.0: Flexible Automated Deployment System

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By Hendy Irawan / July 22, 2007

Capistrano is a deployment system written in Ruby by Jamis Buck. It has been the de facto standard for deploying Rails applications and automating remote tasks via SSH.

The recently released version 2.0 expands its usefulness not just for Rails developers, but for general automation tasks as well. New features include:

  • Namespaces. Tasks may be defined within namespaces, nested arbitrarily deep. No more worrying of task name collision.
  • Deployment strategies. Besides Subversion checkout, you can now specify other deployment strategies: export, copy, tar/gzip, etc.
  • Opt-in deployment tasks. Deployment tasks are now opt-in; you don’t get them, unless you ask for them.

    • Read More

Interview with André Ben Hamou, Author of “Practical Ruby For System Administration”

By Hendy Irawan / July 20, 2007

Prfsa

Practical Ruby For System Administration, a recently released Apress book authored by André Ben Hamou, will help you pick up practical tips on Ruby coding style, learn how to analyze and improve script performance, and make use of no-nonsense advice on scripting workflow, including testing and documentation.

In this book you’ll see why Ruby’s flexibility, superb feature set, and gentle learning curve make it a natural choice for system administration tasks, from the humblest server to the largest enterprise deployment.

André was kind enough to let Ruby Inside ask a few questions for this interview.

Ruby Inside: What is your background in the computer industry? Read More

Adhearsion: Ruby Framework for Sophisticated VoIP / Telecoms Applications

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By Peter Cooper / July 18, 2007

Adhearsion

Adhearsion is an open-source, telecommunications application framework that uses Ruby, coupled with Asterisk, the popular open source telephony platform. It lets you build telecommunications systems and scripts in a quick and powerful way:

Adhearsion2

Creator Jay Philips has written a chapter for O’Reilly forthcoming “Asterisk: The Future of Telephony” about Adhearsion, and O’Reilly have published an extended excerpt of it online. It covers the installation of Adhearsion, basic script writing, database integration, and how to put together “micromenus” that operate in a vendor-independent fashion.

Learn more about the framework at the official Adhearsion site, and enjoy twisting together your phone system with a little Ruby! Read More

god: Extensible Process Monitoring Framework

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By Hendy Irawan / July 18, 2007

god monitors your server processes and tasks to make sure they run smoothly, and performs maintenance tasks (such as restarting your application servers) as necessary. This Ruby application is written by Tom Preston-Werner and serves similar functionality to, and inspired by, a popular tool called monit.

Among the features god provides include:

  • Config file is written in Ruby
    Easily write your own custom conditions in Ruby
    Supports both poll and event based conditions
    Different poll conditions can have different intervals

Here’s a part of an example config file used to monitor mongrel instances: Read More

god.watch do |w|
w.name = “gravatar2-mongrel-#{port}”
w.interval = 30 # seconds
w.start = “mongrel_rails cluster::start –only #{port}
-C #{RAILS_ROOT}/config/mongrel_cluster.yml”
w.stop = “mongrel_rails cluster::stop –only #{port}
-C #{RAILS_ROOT}/config/mongrel_cluster.yml”
w.grace = 10 # seconds

…

Twitter4R 0.2.0: Twitter API for Ruby

By Hendy Irawan / July 17, 2007

Twitter4R is a Ruby library to access Twitter API functionality developed by Susan Potter. Twitter itself is sort of social network with a differentiation: it allows you to send to and receive updates from your friends instantly.

The recently released major upgrade Twitter4R 0.2.0 offers significant improvements:

  • 100% coverage of official Twitter REST API
  • RSpec specifications with 100% code coverage
  • Cleaning and removal of previously inconsistent API

Here’s a simplified example Twitter4R usage:

gem(‘twitter4r’, ‘>=0.2.0′)
require(‘twitter’)

client = Twitter::Client.new(:login => ‘mylogin’,
:password => ‘mypassword’)
new_message = client.message(:post,
‘I am addicted to Twitter’, ‘myfriendslogin’)

To install it:

gem install twitter4r

Note: As an alternative, Twitter gem, as covered previously at Ruby Inside, is also available. Read More

JRuby Inside: It’s like Ruby Inside, for JRuby!

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By Peter Cooper / July 16, 2007

Jrubyinside

I’m proud to announce the tentative launch of.. JRuby Inside, the latest addition to the Ruby Inside media empire (if two sites counts as an ‘empire’!). JRuby Inside is like Ruby Inside, but for JRuby, the Ruby implementation that runs on the Java Virtual Machine.

Like Ruby Inside it has editorial direction. It’s not just a bunch of links submitted by thousands of people, as you’d find on fine sites like DZone, Digg, Reddit, or del.icio.us. It features links from lots of different sources, but I choose which ones make it to the RSS feed (so you don’t get overwhelmed with junk, repeat stories or spam), which to delete, and which I want to edit the titles of. Read More

Joyent Slingshot and Connector Go Open Source

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By Peter Cooper / July 13, 2007

Slingshot-1

Remember when we first announced Joyent Slingshot, the technology that lets you run Rails apps within a native Windows and OS X client, a few months ago? Well, both Slingshot and Joyent Connector have just been open sourced, and they’re yours to play with now. For those unfamiliar with Slingshot, here’s what Joyent have to say:

Joyent Slingshot allows developers to deploy Rails applications like a standard desktop application, which work online and offline (with synchronization), have drag and drop, and interact with all the other desktop applications.

With Joyent Slingshot:

* Create a hybrid Web/desktop application
* Synchronize online and offline data
* Use the same code for online and offline application(s)
* Deploy and update your application easily
* Drag into and out of application

Joyent Connector, a suite of collaboration and communication applications for small businesses, has also been open sourced. Read More

Amazon Web Services Introduction for Ruby Coders

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By Peter Cooper / July 12, 2007

Awsdc-1

Robert Dempsey, of Atlantic Dominion Solutions, has put together a comprehensive introduction to Amazon’s Web Services for Ruby developers. AWS has a lot to offer, from e-commerce services through to the EC2 “Elastic Compute Cloud” and the popular S3 “Simple Storage Service”. Robert looks at how Ruby can access AWS using RESTful techniques, demonstrates how to use S3 from Ruby, and provides a batch of links to further resources. Read More

Profligacy: Easier Swing GUI layouts with JRuby

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By Peter Cooper / July 11, 2007

Profligacy

Profligacy is a new library by *** ****, the mastermind behind Mongrel:

Profligacy is a JRuby library that makes building Swing Graphical User Interface much easier than with raw code. It’s not a builder as with many other projects, but instead a simple Ruby way to structure the UI for the 80% common cases you’ll encounter.

Profligacy features some clever magic, such as LEL, a “Layout Expression Language” that lets you build layouts from basic ASCII representations.

Check out the official homepage and look at a whole collection of examples *** has put together (as seen in the screenshot above). Read More

Haml 1.7 Released: Now 16 Times Faster Than Markaby

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By Peter Cooper / July 10, 2007

Hamlagain

Ruby Inside has mentioned Haml, a couple of times before. It’s a template language for Rails developed by Hampton Catlin, and it acts as a high-level, highly semantic alternative to RHTML. It relies on indentation for structure (a la Python) and includes a CSS meta-language (Sass) to make it super easy to dynamically produce XHTML-compliant pages that are easy to tweak later on.

Hampton has just released Haml 1.7, a major revision that boosts Haml’s speed to merely 30% less than that of raw Erb (which RHTML templates rely on), which, supposedly, makes it 16 times faster than Markaby, another alternative page generation library. Read More

The Beauty of Ruby: A 54 Minute Presentation

By Peter Cooper / July 9, 2007

Glennv Eddquote

The Beauty of Ruby is a 54 minute presentation by Glenn Vanderburg that looks at Ruby’s idioms, syntax, and “subtle beauty” such as mixins, open classes, metaprogramming, the syntax of case, and the beauty of ===. Read More

How and Why Companies are Using Ruby on Rails: The Thesis!

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By Peter Cooper / July 9, 2007

Thesis

Michel Barbosa is a bachelor student at the Erasmus Universiteit Rotterdam in the Netherlands and has just completed his thesis: “Delivery of the Key Adoption Factors and Key Characteristics of Companies Using Ruby on Rails.” Or, in layman’s terms, he’s produced a document that goes into the hows and whys of how companies have migrated over to using Ruby on Rails.

Thesis2

There are lots of graphs, charts, and tables, so enjoy!

(first seen at Riding Rails) Read More

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