dan-manges

require "tmpdir"
require "securerandom"
require "set"

REPO = ARGV[0] || raise("need repo")
EMAILS = ARGV[1...]

EMAIL_MAP = {
  "old-email@example.com" => "new-email@example.com"
}

dan-manges

Ruby Pub/Sub

This is an implementation of in-process pub/sub in Ruby with type checking at runtime.

It only allows subscribing to events with jobs to ensure that the subscriber blocks are fully asynchronous and cannot cause runtime exceptions.

This is the approach we use in production at rwx

dan-manges

#!/usr/bin/env ruby

def output_config
  puts <<-END
graph_category App
graph_title passenger status
graph_vlabel count

sessions.label sessions
max.label max processes

dan-manges

Testing

def foo
end

dan-manges

http = require 'http'
m2node = require 'm2node'

server = http.createServer((req, res) ->
  console.log("#{req.method} #{req.url}")
  sendResponse = ->
    res.writeHead(200, {'Content-Type': 'text/plain'})
    res.end('Hello World\n')
  match = req.url.match(/sleep.(\d+)/)
  if match

dan-manges

def fib(n)
  if n <= 2
    1
  else
    fib(n-1) + fib(n-2)
  end
end

def fibsum(n)
  sum = 0

dan-manges

def mask(x)x[0,6]+'*'*(x.size-10)+x[-4..-1]end

dan-manges

  def self.luhn_valid?(number)
    return false unless number.to_s =~ /\A\d+\z/
    digits = number.scan(/\d/).map(&:to_i).reverse
    digits.each_with_index do |digit, index|
      if index.odd?
        digits[index] = (digit >= 5 ? digit * 2 - 9 : digit * 2)
      end
    end
    digits.sum % 10 == 0
  end

dan-manges

def luhn?(number)
  digits = number.scan(/\d/).map { |d| d.to_i }.reverse
  digits.each_with_index do |digit, index|
    if index % 2 == 1
      digits[index] = (digit >= 5 ? digit * 2 - 9 : digit * 2)
    end
  end
  digits.inject(0) { |a,b| a + b } % 10 == 0
end

dan-manges

  def luhn10?(number)
    return false unless number.to_s =~ /\A\d+\z/
    digits = number.scan(/\d/).map(&:to_i).reverse
    digits.each_with_index do |digit, index|
      if index.odd?
        digits[index] = (digit >= 5 ? digit * 2 - 9 : digit * 2)
      end
    end
    digits.sum % 10 == 0
  end