joshuaflanagan

class ActiveRecord::Base
  # Find a record by UUID primary key prefix
  #
  # Example:
  # > User.fish "1245"
  # # User Load (0.3ms)  SELECT  "users".* FROM "users" WHERE ("users"."id" BETWEEN '12450000000000000000000000000000' AND '1245ffffffffffffffffffffffffffff') LIMIT $1  [["LIMIT", 2]]
  # => #<User id: "12451304-761d-4e1d-8281-40aa6213b633", name: "josh">
  def self.fish(partial_id)
    return find(partial_id) unless partial_id.is_a?(String)
    scrubbed = partial_id.gsub(/[^a-fA-F0-9]/,  "")

joshuaflanagan

# Ruby 2.1.2

2.1.2 :173 > x = BigDecimal.new(1.0, 1)
 => #<BigDecimal:7ffcee09bb98,'0.1E1',9(27)>
2.1.2 :174 > y = Marshal.load Marshal.dump x
 => #<BigDecimal:7ffcec5d9ee0,'0.1E1',9(18)>
2.1.2 :175 > x == y
 => true
2.1.2 :176 > Marshal.dump(x) == Marshal.dump(y)
 => false

joshuaflanagan

  def no_surprises!
    ActiveRecord::Base.class_eval do
      include SkipsValidations
      include SkipsCallbacks
    end
  end

  module SkipsValidations
    def perform_validations(*)
      true

joshuaflanagan

# http://www.w3.org/TR/PNG/#5DataRep
class PNGCheck
  def initialize(path)
    @path = path
  end

  def check_all!
    expected_signature = [137, 80, 78, 71, 13, 10, 26, 10]
    file.seek 0
    signature_data = file.read(8)

joshuaflanagan

http -v -a username:password POST https://api.github.com/repos/owner/repo/git/refs ref="refs/heads/recovered_branch" sha="290b2090a741d35edd67f15c74b2d43299df8995"
git fetch
git checkout recovered_branch

joshuaflanagan

          name          | default_version | installed_version |                               comment                               
------------------------+-----------------+-------------------+---------------------------------------------------------------------
 pg_buffercache         | 1.0             |                   | examine the shared buffer cache
 earthdistance          | 1.0             |                   | calculate great-circle distances on the surface of the Earth
 pg_freespacemap        | 1.0             |                   | examine the free space map (FSM)
 intagg                 | 1.0             |                   | integer aggregator and enumerator (obsolete)
 plperl                 | 1.0             |                   | PL/Perl procedural language
 sslinfo                | 1.0             |                   | information about SSL certificates
 btree_gist             | 1.0             |                   | support for indexing common datatypes in GiST
 fuzzystrmatch          | 1.0 

joshuaflanagan

// ==UserScript==
// @name        Pull Request Labels
// @namespace   http://joshuaflanagan.com
// @include     https://github.com/*/*/pulls
// @version     1
// @require  http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js
// ==/UserScript==
$(function(){
  var $pull_requests = $(".pulls-list .list-browser-item h3");
  $pull_requests.each(function(){

joshuaflanagan

# I used this to monitor changes to the .git folder during
# my Austin on Rails lightning talk on Understanding Git.
#
# I ignore any changes to the .git/logs folder, because they are
# noisy and don't add a lot to understanding.
# If you want "the whole truth", remove the :ignore parameter below.
#
# ruby listen.rb <path to .git folder>
#
# gem install listen # its the foundation of Guard

joshuaflanagan

require 'test/unit'
require 'delegate'

# These tests demonstrate some unexpected (to me)
# behavior of a class created by DelegateClass.
# An instance of a DelegateClass created class does not eql? itself.
#
# The WidgetTests all pass.
# The comparison and eql WidgetWrapperTests fail.
# ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin11.2.0]

joshuaflanagan

SmartUrlHelper.configure do |url|
  url.for ->model{ model.is_a?(Comment) } do |helpers, model|
    helpers.post_comment_path(model.post, model)
  end

  # TODO: Add a convenience method for matching on type:
  # url.for(Comment) do |helpers, model|
  #   helpers.post_comment_path(model.post, model)
  # end
end