solnic

require 'equalizer'

module Checkproc
  InvalidValueError = Class.new(StandardError) { include Equalizer.new(:message) }

  class Composite
    attr_reader :left
    attr_reader :right

    def initialize(left, right)

mxlje

These commands are needed every time you want to generate a new certificate signing request to give to an authority in order for them to generate and sign a certificate for you.

https://letsencrypt.org/ solves a lot of the pain involved with SSL certs, but sometimes you still need to go the "old school" route. I constantly forget how this stuff works, so I collected the most important commands (and what they do) here for easy copy & paste.

Generate new private key

zosiu

class InstagramRealTimeUpdatesController < ActionController::Base
  def callback
    case request.method_symbol
    when :get
      render text: Instagram.meet_challenge(params, ENV['INSTAGRAM_VERIFY_TOKEN'])
    when :post
      Instagram.process_subscription(request.body.read) do |handler|
        handler.on_user_changed do |user_id, data|
          media_id = (data['data'] || {})['media_id']
          InstagramJob.perform_later user_id, media_id

SamSaffron

# speed up pluck

class ActiveRecord::Relation

  class RailsDateTimeDecoder < PG::SimpleDecoder
    def decode(string, tuple=nil, field=nil)
      if Rails.version >= "4.2.0"
        @caster ||= ActiveRecord::Type::DateTime.new
        @caster.type_cast_from_database(string)
      else

trekdemo

# Usage:
#   foo('Near the intersection of Lexington Ave and E 40th St') 
#   # => ['Lexington Ave', 'E 40th St']
#   foo('Between Lexington Ave and E 40th St') 
#   # => ['Lexington Ave', 'E 40th St']
# 
def foo(value)
  case value
  when (re = /^Near the intersection of (.*) and (.*)$/)
  when (re = /^Between (.*) and (.*)$/)

addyosmani

CSS Layout Debugger

A tweet-sized debugger for visualizing your CSS layouts. Outlines every DOM element on your page a random (valid) CSS hex color.

One-line version to paste in your DevTools

Use $$ if your browser aliases it:

~ 108 byte version

jirutka

How to use terminal on Windows without going crazy…

Windows is really horrible system for developers and especially for devops. It doesn’t even have a usable terminal and shell, so working with command line is really pain in the ass. If you really don’t want to switch to any usable system (OS X, Linux, BSD…), then this guide should help you to setup somewhat reasonable environment – usable terminal, proper shell, ssh client, git and Sublime Text as a default editor for shell.

Install stuff

1. Download and install Git for Windows* with:
   • [✘] Use Git from the Windows Command Prompt

• [✘] Checkout as-is, commit Unix-style line endings

Filirom1

What happens when you create an application on OpenShift.

             __________                __________
            |          |     mco      |          |__
rhc ----->  |  Broker  |  --------->  |   Node   |  |__
            |__________| \            |__________|  |  |
                  /\     \  --------->   |__________|  |
                  |       \ --------->      |__________|
             _____|____ 

| |

smarterclayton

Moved to OpenShift PEP 013

lelandbatey

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

Results