aalin

# This is not the best example, but imagine a Rails project with lots of complex logic and methods and stuff...
# Imagine that Base is an 500 line ActiveRecord model... :)

require 'rubygems'
require 'active_support/core_ext'
Customer = Struct.new(:id, :first_name, :last_name, :company_name)

## Implementation directly in the class

# Pros:

aalin

#!/usr/bin/env ruby

`git diff --cached --name-only --diff-filter=AM`.lines.each do |filename|
  path = File.join(Dir.pwd, filename.strip)
  puts "Checking syntax of #{ filename.strip }"
  case filename
  when /.haml$/
    exit 1 unless system('haml', '--check', path)
  when /.scss$/
    exit 1 unless system('scss', '--check', path)

aalin

class CaseComparator
  def initialize(object, operator)
    @object = object
    @operator = operator
  end

  def ===(other)
    other.send(@operator, @object)
  end
end

aalin

require 'formula'

class Vim < Formula
  homepage 'http://www.vim.org/'
  url 'ftp://ftp.vim.org/pub/vim/unix/vim-7.3.tar.bz2'
  head 'https://vim.googlecode.com/hg/'
  sha256 '5c5d5d6e07f1bbc49b6fe3906ff8a7e39b049928b68195b38e3e3d347100221d'
  version '7.3.294'

  def features; %w(tiny small normal big huge) end

aalin

ZSH_THEME_GIT_PROMPT_PREFIX=" %F{208}❨%F{220}"
ZSH_THEME_GIT_PROMPT_SUFFIX="%F{208}❩%{$reset_color%}"
ZSH_THEME_GIT_PROMPT_DIRTY="%F{196}✻%{$reset_color%}"
ZSH_THEME_GIT_PROMPT_CLEAN=""

PROMPT=$'%F{196}%M %F{202}%~%{$reset_color%}$(git_prompt_info)%{\e[%(?.32.31);1m%} ➔%{$reset_color%} '

aalin

require 'rspec-expectations'

class RSpec::Expectations::Differ
  def diff_as_object(a, b)
    if a.is_a?(Time) && b.is_a?(Time)
      minutes, seconds = (b - a).divmod(60)
      hours, minutes = minutes.divmod(60)
      Kernel.format(" %dh %dm %ds \nactual:   %s\nexpected: %s", hours, minutes, seconds % 60, b.utc.to_s, a.utc.to_s)
    else
      super

aalin

#!/usr/bin/env ruby

if match = `git symbolic-ref HEAD 2> /dev/null`.split('/').last.to_s.match(/^(?:t|s)-?(\d+)$/)
  message = File.read(ARGV.first)
  message.gsub!("STORYID", "[##{ match[1] }]")
  File.open(ARGV.first, 'w') do |f|
    f.puts(message)
  end
end

aalin

#!/usr/bin/env ruby

require 'rubygems'
require 'pivotal-tracker'

class String
  ANSI_COLORS = [:black, :red, :green, :yellow, :blue, :magenta, :cyan, :white]
  def colorize(color)
    num = ANSI_COLORS.index(color) or raise("Bad color #{ color }")
    "\e[3#{ num }m" + self + "\e[0m"

aalin

class Multibench
  def initialize
    @benches = Hash.new { 0 } 
  end 

  def bench(title)
    start = Time.now
    yield.tap do
      @benches[title] += Time.now - start
    end 

aalin

#!/usr/bin/env ruby

# Usage:
#   runonupdate "spec spec/models/cat_spec.rb -O spec/spec.opts" app/models/cat.rb app/models/dog.rb
#
# This will run cat-specs whenever cat.rb or dog.rb is updated.

class RunOnUpdate
  attr_reader :cmd
  attr_reader :files