loganhasson

/*
 * OpenSimplex Noise in Java.
 * by Kurt Spencer
 * 
 * v1.1 (October 5, 2014)
 * - Added 2D and 4D implementations.
 * - Proper gradient sets for all dimensions, from a
 *   dimensionally-generalizable scheme with an actual
 *   rhyme and reason behind it.
 * - Removed default permutation array in favor of

loganhasson

# Given a string of uppercase characters in the range A-Z, 
# replace runs of sequential characters with a single 
# instance of that value preceded by the number of items 
# in the run.
defmodule RunLengthEncoder do

  def encode(string) do
    encode_aux(String.codepoints(string), [])
  end

loganhasson

body {
  font-family: Helvetica, arial, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  padding-top: 10px;
  padding-bottom: 10px;
  background-color: white;
  padding: 30px; }

body > *:first-child {

loganhasson

require 'redcarpet'

# Custom handler that raises error.
# 
module Redcarpet
  module Render
    class Crasher < HTML
      def paragraph(text)
        raise "Error!"
      end

loganhasson

after "deploy:symlink", "deploy:restart_workers"

##
# Rake helper task.
# http://pastie.org/255489
# http://geminstallthat.wordpress.com/2008/01/27/rake-tasks-through-capistrano/
# http://ananelson.com/said/on/2007/12/30/remote-rake-tasks-with-capistrano/
def run_remote_rake(rake_cmd)
  rake_args = ENV['RAKE_ARGS'].to_s.split(',')
  cmd = "cd #{fetch(:latest_release)} && #{fetch(:rake, "rake")} RAILS_ENV=#{fetch(:rails_env, "production")} #{rake_cmd}"

loganhasson

# lib/tasks/deploy.rake
namespace :deploy do
  desc 'Deploy to staging environment'
  task :staging do
    exec 'mina deploy -f config/deploy/staging.rb'
  end
end

loganhasson

FROM ubuntu
MAINTAINER Eric Mill "eric@konklone.com"

# turn on universe packages
RUN echo "deb http://archive.ubuntu.com/ubuntu raring main universe" > /etc/apt/sources.list
RUN apt-get update

# basics
RUN apt-get install -y nginx openssh-server git-core openssh-client curl
RUN apt-get install -y nano

loganhasson

My issues with Modules

In researching topics for RailsCasts I often read code in Rails and other gems. This is a great exercise to do. Not only will you pick up some coding tips, but it can help you better understand what makes code readable.

A common practice to organize code in gems is to divide it into modules. When this is done extensively I find it becomes very difficult to read. Before I explain further, a quick detour on instance_eval.

You can find instance_eval used in many DSLs: from routes to state machines. Here's an example from Thinking Sphinx.

class Article < ActiveRecord::Base

loganhasson

=Navigating=
    visit('/projects')
    visit(post_comments_path(post))

=Clicking links and buttons=
    click_link('id-of-link')
    click_link('Link Text')
    click_button('Save')
    click('Link Text') # Click either a link or a button
    click('Button Value')