Ruby

Basics

• WP: Ruby_(programming_language)

• Ruby is a dynamic, open source programming language with a focus on simplicity and productivity. It has an elegant syntax that is natural to read and easy to write.

• Why's (Poignant) Guide to Ruby - [1]

Syntax

# The Greeter class
class Greeter
  def initialize(name)
    @name = name.capitalize
  end
 
  def salute
    puts "Hello #{@name}!"
  end
end
 
# Create a new object
g = Greeter.new("world")
 
# Output "Hello World!"
g.salute

Installing

rbenv

• https://github.com/sstephenson/rbenv

ruby-install

• https://github.com/postmodern/ruby-install

installing

wget -O ruby-install-0.3.0.tar.gz https://github.com/postmodern/ruby-install/archive/v0.3.0.tar.gz
tar -xzvf ruby-install-0.3.0.tar.gz
cd ruby-install-0.3.0/
sudo make install

usage

Install the current stable version of Ruby:

ruby-install ruby

Install a latest version of Ruby:

ruby-install ruby 1.9

Install a specific version of Ruby:

ruby-install ruby 1.9.3-p429

Install a Ruby into a specific directory:

ruby-install -i /usr/local/ ruby 1.9.3-p429

Install a Ruby from a mirror:

ruby-install -M http://www.mirrorservice.org/sites/ftp.ruby-lang.org/pub/ruby ruby 2.0.0-p247

Install a Ruby with a specific patch:

ruby-install -p https://raw.github.com/gist/4136373/falcon-gc.diff ruby 1.9.3-p429

Install a Ruby with specific configuration:

ruby-install ruby 2.0.0 -- --enable-shared --enable-dtrace CFLAGS="-O3"

Guides

• Ruby Documentation
• Arch Wiki: Ruby

• WP: Why%27s_(poignant)_Guide_to_Ruby
• The Bastards Book of Ruby
• https://practicingruby.com/

• http://www.foodfightshow.org/2012/02/episode-3-usrbinruby-for-sysadmins-with.html

• http://guides.rubyonrails.org/asset_pipeline.html
• http://rubykoans.com/

RubyGems

Guides

• http://docs.rubygems.org/
• http://guides.rubygems.org/

• isitruby1.9 Community-powered gem compatibility for ruby 1.9]

Installing

• http://docs.rubygems.org/read/chapter/3
• http://rubyforge.org/frs/?group_id=126

ruby setup.rb

Usage

gem update --system

gem install [rubygem]
  install a gem
gem upgrade
  upgrade installed gems
gem env

As user, goes into .gem. As root, goes into /usr/lib/ruby/gems/1.9.1/gems/compass-0.11.7/frameworks/compass/stylesheets/compass or suchlike.

ruby -r rubygems -e "p Gem.path"   
  display ruby gem path[s]

to sort

• http://lettersrb.com/

• http://rubyforge.org/

• https://gemcanary.com/

• http://home.gna.org/xmpp4r/

Tools

• RVM is a command-line tool which allows you to easily install, manage, and work with multiple ruby environments from interpreters to sets of gems.
  • http://screencasts.org/episodes/how-to-use-rvm

• The Ruby Toolbox

• http://rubyfiddle.com/

• http://jasonseifer.com/2010/04/06/rake-tutorial

• Pry is a powerful alternative to the standard IRB shell for Ruby. It features syntax highlighting, a flexible plugin architecture, runtime invocation and source and documentation browsing.

• Sprockets is a Ruby library for compiling and serving web assets. It features declarative dependency management for JavaScript and CSS assets, as well as a powerful preprocessor pipeline that allows you to write assets in languages like CoffeeScript, Sass, SCSS and LESS.

Rails

• http://railsforzombies.org/

Shoes

• http://shoesrb.com/
  • https://github.com/shoes/shoes/wiki

• http://hackety.com/

Development

• http://rubygems.org/gems/css_parser - stats on css output from sass, etc.

• https://github.com/jphastings/thimblr - not working
• https://github.com/proxylocal/proxylocal-gem

• jim - jim is your friendly javascript library manager. He downloads, stores, bundles, vendors and compresses.

• https://github.com/guard/guard-livereload

Sinatra

• http://www.sinatrarb.com/

require 'sinatra'

get '/hi' do
  "Hello World!"
end

gem install sinatra
ruby hi.rb

CMS/F

• http://radiantcms.org/

• http://refinerycms.com/

• https://github.com/hmans/happy/

• http://pow.cx/

• http://hanamirb.org/

Mobile apps

• http://www.willprater.me/blog/2012/08/21/using-rubymotion-to-build-javaScript-based-ios-apps/

Other

• http://docs.topazruby.com/en/latest/ - ruby on python

• http://www.fancy-lang.org/
• http://rubby-lang.org/

JavaScript

• http://skilldrick.co.uk/2011/01/ruby-vs-javascript-functions-procs-blocks-and-lambdas/

• Opal is a ruby to javascript compiler. It is source-to-source, making it fast as a runtime. Opal includes a compiler (which can be run in any browser), a corelib and runtime implementation. The corelib/runtime is also very small (10.8kb gzipped).

• http://rb2js.rubyforge.org/

• RubyJS is a JavaScript implementation of all methods from Ruby classes like Array, String, Numbers, Time and more.