marksim

xcode-select --install

# homebrew / cask / util
ruby -e "$(curl -fsSL https://raw.github.com/mxcl/homebrew/go)"
brew doctor
brew tap phinze/homebrew-cask
brew install brew-cask
brew cask install alfred
brew cask install iterm2

marksim

My script for pair sessions on my box.

What it does

• downloads the appropriate ssh keys from github
• copies the appropriate 'ssh pair@your-external-ip' command to your clipboard (see Note #1)
• sets up the tmux session
• cleans up the session, and the keys after it's done

How to use

marksim

I'm not sure how to remove the dependency on VerificationMailer without pushing it into the profile model and making the model suddenly care about how to mail verifications.

I WANT to remove it so I don't have any need to load up rails when running the tests, but also want to keep my models sensible and without a lot of knowledge of business logic.

Example usage:

profile = Profile.find(1)
profile.extend Verifier

profile.verify(email: 'myemail@example.com')

marksim

The Erlang VM only allows a limited set of expressions as guards:

• comparison operators (==, !=, ===, !==, >, <, <=, >=);
• boolean operators (and, or) and negation operators (not, !);
• arithmetic operators (+, -, *, /);
• <> and ++ as long as the left side is a literal;
• the in operator;
• all the following type check functions:
  • is_atom/1

• is_binary/1

marksim

Keybase proof

I hereby claim:

• I am marksim on github.
• I am marksim (https://keybase.io/marksim) on keybase.
• I have a public key whose fingerprint is 351B AEFF 19E6 F01A 283F E0E6 FB4A 9F3A 2F2C B718

To claim this, I am signing this object:

marksim

require 'rspec'
require 'date'

class EmploymentEvent < Struct.new(:date, :status)
  def <=> (b)
    date <=> b.date
  end

  def as_start
    date + 1

marksim

Github Questions

Q1:

Knowing what you know about GitHub, how would you design the high level infrastructure for github.com? What sequence of steps would happen when loading http://www.github.com in a browser? Don't worry about describing the specific libraries and services that handle each step.

A1:

Assumptions

Well, let's start with a few assumptions so we're on the same page:

marksim

require 'rspec'

def next_server_number(server_numbers)
  server_numbers.sort.each.with_index do |s, i|
    return i+1 if s > i+1
  end
  return server_numbers.count + 1
end

describe 'next_server_number' do

marksim

# Automatically exports all variables in .env files
export $(cat .env)

marksim

require 'rspec'

class GameOfLife
  def initialize(generation)
    @generation = generation
  end

  attr_reader :generation

  def is_alive?(x, y)