jacobo

class Opencv < Formula
  desc "Open source computer vision library"
  homepage "http://opencv.org/"
  url "https://github.com/opencv/opencv/archive/2.4.13.2.tar.gz"
  sha256 "4b00c110e6c54943cbbb7cf0d35c5bc148133ab2095ee4aaa0ac0a4f67c58080"
  revision 2

  bottle do
    sha256 "db402b1fbfc0ae68dd024fc78f63ad4232a64300a8c40b32cb39668d1c8637b2" => :high_sierra
    sha256 "53cfcc3c43d671f32a7723e369c3501d65218f4084d9d2fa633671cf14c8381b" => :sierra

jacobo

def json_pretty(obj)
  str = StringIO.new
  Pry::ColorPrinter.pp(JSON.parse(obj.to_json), str, (`tput cols` || "200").strip.to_i)
  str.rewind
  puts str.read.gsub("=>", ": ")
end

def pretty(obj)
  str = StringIO.new
  Pry::ColorPrinter.pp(JSON.parse(obj.to_json), str, (`tput cols` || "200").strip.to_i)

jacobo

  class CaptureThings
    attr_reader :things
    def initialize(&block)
      @things = []
      instance_eval(&block)
    end
    def method_missing(thing)
      @things << thing.to_s
    end
  end

jacobo

class RedisLock
  class << self
    def with_lock(name, wait: false)
      key = "LOCK:#{name}"
      until fetch_lock(key)
        if wait
          sleep(1)
        else
          return
        end