thiagoa

RSpec.shared_examples_for "check interface against canonical" do |canonical_interface, classes_to_check|
  classes_to_check.each do |class_to_check|
    example "#{class_to_check} conforms to the required interface", :aggregate_failures do
      interface_methods = canonical_interface.public_instance_methods(false)

      methods_to_check = class_to_check.public_instance_methods(false)
      diff = interface_methods - methods_to_check

      expect(diff).to be_empty, (<<~MESSAGE).split("\n").join(" ")
        Expected #{class_to_check} to be polymorphic with

thiagoa

RSpec.shared_examples_for "interface checker" do
  def diff_for(array_1, array_2)
    (array_1 - array_2) + (array_2 - array_1)
  end

  def arities_for(object)
    object.public_methods.map do |m|
      arity = object.method(m).arity
      [m, arity == -1 ? anything : arity]
    end

thiagoa

If your running a x64 bit Ubuntu or other Linux and find USB transfers hang at the end apply this fix:

echo $((16*1024*1024)) > /proc/sys/vm/dirty_background_bytes
echo $((48*1024*1024)) > /proc/sys/vm/dirty_bytes

I suggest you edit your /etc/rc.local file to make this change persistant across reboots.

sudo nano /etc/rc.local

thiagoa

# Using these pry gems -- copy to your Gemfile
# group :development, :test do
  # gem 'pry', '>= 0.14.1' # Console with powerful introspection capabilities
  # # Need to use master of pry-byebug to use latest pry version
  # gem 'pry-byebug', github: 'deivid-rodriguez/pry-byebug' # Integrates pry with byebug
  # gem 'pry-doc' # Provide MRI Core documentation
  # gem 'pry-rails' # Causes rails console to open pry. `DISABLE_PRY_RAILS=1 rails c` can still open with IRB
  # gem 'pry-rescue' # Start a pry session whenever something goes wrong.
  # gem 'pry-theme' # An easy way to customize Pry colors via theme files
  #

thiagoa

;; - unmix1 is my go-to solution
;; - unmix2 is 21% faster than unmix1
;; - unmix3 is 212% faster than unmix1
;; - unmix3 is a classic car-cdr lispy solution
;;
;; Benchmarked with criterium

(defn unmix1 [s]
  (reduce (fn [memo [a b]] (str memo b a))
          ""

thiagoa

For each Ruby module/class, we have Ruby methods on the left and the equivalent
Clojure functions and/or relevant notes are on the right.

For clojure functions, symbols indicate existing method definitions, in the 
clojure namespace if none is explicitly given.  clojure.contrib.*/* functions can
be obtained from http://github.com/kevinoneill/clojure-contrib/tree/master,
ruby-to-clojure.*/* functions can be obtained from the source files in this
gist.

If no method symbol is given, we use the following notation:

thiagoa

#!/usr/local/bin/sbcl --script

(load (merge-pathnames ".sbclrc" (user-homedir-pathname)))

(ql:quickload "cl-json" :silent t)
(require "inferior-shell")

(defparameter *ssh-user* "ec2-user")
(defparameter *ssh-key-path* "~/.ssh/us-east-1-platform-key.pem")

thiagoa

defmodule BinarySearch do
  def find(item, _left, [i | _right]) when i == item, do: true
  def find(item, _left, [i | right]) when i < item, do: find(item, right)
  def find(item, left, [i | _right]) when i > item, do: find(item, left)
  def find(_item, _left, []), do: false

  def find(item, list) do
    {left, right} = split(list)
    find(item, left, right)
  end

thiagoa

;; Align command !!!

;; from http://stackoverflow.com/questions/3633120/emacs-hotkey-to-align-equal-signs
;; another information: https://gist.github.com/700416
;; use rx function http://www.emacswiki.org/emacs/rx


(defun align-to-colon (begin end)
  "Align region to colon (:) signs"
  (interactive "r")

thiagoa

class HStruct
  def self.new(*members, defaults: {}, &block)
    invalid_defaults = defaults.keys - members
    fail "Invalid defaults #{invalid_defaults}" if invalid_defaults.any?

    klass = Class.new do
      @members = members
      @defaults = defaults

      class << self