Tristan parasquid

RedDotRubyConf 2013 links & resources

June 7-8, 2013

Web site: http://reddotrubyconf.com/ Twitter: http://twitter.com/reddotrubyconf

Ping me @cheeaun on Twitter if you found some awesome stuff for #rdrc. This gist will be updated whenever there's new stuff.

Previously, on RedDotRubyConf 2012

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

Pretty prompt

Add this into ~/.bash_profile

parse_git_dirty() {
  [[ $(git status 2> /dev/null | tail -n1) != "nothing to commit (working directory clean)" ]] && echo -en "⸕"  
}
parse_git_info() {
   git branch 2> /dev/null | sed -e '/^[^*]/d' -e "s/* \(.*\)/ (\1)$(parse_git_dirty)/"

A slightly updated version of this doc is here on my website.

Why I Like Go

I visited with PagerDuty yesterday for a little Friday beer and pizza. While there I got started talking about Go. I was asked by Alex, their CEO, why I liked it. Several other people have asked me the same question recently, so I figured it was worth posting.

Goroutines

The first 1/2 of Go's concurrency story. Lightweight, concurrent function execution. You can spawn tons of these if needed and the Go runtime multiplexes them onto the configured number of CPUs/Threads as needed. They start with a super small stack that can grow (and shrink) via dynamic allocation (and freeing). They are as simple as go f(x), where f() is a function.

	module ActiveRecord
	module Querying
	delegate :group_date, :to => :scoped
	end

	module QueryMethods
	def group_date(column_name = nil)
	return self if column_name.blank?

	# Rails uses a non standard time zone naming.

	var scales = {
	'natural major': [0,2,4,5,7,9,11,12],
	'ionian': [0,2,4,5,7,9,11,12],
	'major': [0,2,4,5,7,9,11,12],
	'chromatic': [0,1,2,3,4,5,6,7,8,9,10,11,12],
	'spanish 8 tone': [0,1,3,4,5,6,8,10,12],
	'flamenco': [0,1,3,4,5,7,8,10,12],
	'symmetrical': [0,1,3,4,6,7,9,10,12],
	'inverted diminished': [0,1,3,4,6,7,9,10,12],
	'diminished': [0,2,3,5,6,8,9,11,12],

	require "active_record"

	namespace :db do

	db_config = YAML::load(File.open('config/database.yml'))
	db_config_admin = db_config.merge({'database' => 'postgres', 'schema_search_path' => 'public'})

	desc "Create the database"
	task :create do
	ActiveRecord::Base.establish_connection(db_config_admin)

	h = {
	'a' => :a_value,
	'b' => nil,
	'c' => false
	}

	h.fetch('a', :default_value) #=> :a_value
	h.fetch('b', :default_value) #=> nil
	h.fetch('c', :default_value) #=> false
	h.fetch('d', :default_value) #=> :default_value

	Step 1:
	Go to: C:\Windows\System32\Drivers\etc\hosts
	And add this to the bottom of the file:

	=============
	127.0.0.1 your.domain.com
	=============

	Step 2:
	Go to [your XAMPP directory]/apache/conf/httpd-xampp.conf

	// String utils
	//
	// resources:
	// -- mout, https://github.com/mout/mout/tree/master/src/string

	/**
	* "Safer" String.toLowerCase()
	*/
	function lowerCase(str) {
	return str.toLowerCase();