Cainã Costa cfcosta

A software engineer from Brazil. I like Rust, Nix and Distributed Systems.

cfcosta / gist:3594499

Created September 2, 2012 03:18

cfcosta / gist:3594494

Created September 2, 2012 03:17

	//= require_tree ./vendor
	//= require_directory .

cfcosta / gist:3594463

Created September 2, 2012 03:11

	<!DOCTYPE html>
	<html>
	<head>
	<title>Shmup Game</title>

	<meta charset="utf-8">
	<meta name="description" content="">
	<meta name="viewport" content="width=device-width">

	<link rel="stylesheet" href="/assets/application.css">

cfcosta / gist:3594439

Created September 2, 2012 03:08

Gemfile for embedding

cfcosta / gist:3594414

Created September 2, 2012 03:05

Sinatra application for serving simple Single Page Applications

	require 'bundler/setup'
	Bundler.require

	class Application < Sinatra::Base
	get '/assets/:file' do
	env['PATH_INFO'].gsub!("/assets","")
	asset_handler.call(env)
	end

	get '/' do

cfcosta / gist:3418640

Created August 21, 2012 19:39

Monkeypatch to make Devise::Mailer to work with Resque::Mailer

	require "devise"

	module Devise
	module Mailers
	module Helpers
	include Resque::Mailer

	alias_method :old_initialize_from_record, :initialize_from_record

	protected

cfcosta / tree.rb

Created May 11, 2012 21:18

An implementation of Trees for PostgreSQL

	module Tree
	extend ActiveSupport::Concern

	module ClassMethods
	def leaves
	where("children = ?::integer[]", [].pg)
	end

	def roots
	where("ancestry = ?::integer[]", [].pg)

cfcosta / gist:2657452

Created May 11, 2012 04:01

	module Tree
	extend ActiveSupport::Concern

	module ClassMethods
	def leaves
	where("children = ?::integer[]", [].pg)
	end

	def roots
	where("ancestry = ?::integer[]", [].pg)

cfcosta / gist:2656342

Created May 10, 2012 22:35

	test_tree=# insert into tags (name, ancestry) values ('child', '{1}') returning id;
	id
	----
	4
	(1 row)

	INSERT 0 1

cfcosta / gist:2407670

Created April 17, 2012 17:33

	>> require "minitest/mock"
	=> true
	>> mock = MiniTest::Mock.new
	=> #<MiniTest::Mock:0x007fc48ca57d70 @expected_calls={}, @actual_calls={}>
	>> mock.respond_to? :abc
	=> false
	>> mock.expect(:abc, "123")
	=> #<MiniTest::Mock:0x007fc48ca57d70 @expected_calls={:abc=>{:retval=>"123", :args=>[]}}, @actual_calls={}>
	>> mock.respond_to? :abc
	=> true