kerryb

module DynamicSetup
  def dynamic_setup_complete?
    @dynamic_setup_complete
  end

  def method_missing name, *args, &block
    if dynamic_setup_complete?
      super
    else
      perform_dynamic_setup

kerryb

data = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
chunk_size = 3
chunked_averages = (0...data.length).zip(data).group_by{|a| a.first / chunk_size}.values.map{|a| a.map(&:last).reduce(&:+) / a.size}

kerryb

$ gem -v
<internal:lib/rubygems/custom_require>:32:in `rescue in require': undefined method `try_activate' for Gem:Module (NoMethodError)
	from <internal:lib/rubygems/custom_require>:29:in `require'
	from /usr/local/lib/ruby/site_ruby/1.9.1/rubygems.rb:32:in `<top (required)>'
	from <internal:lib/rubygems/custom_require>:29:in `require'
	from <internal:lib/rubygems/custom_require>:29:in `require'
	from /usr/local/bin/gem:8:in `<main>'


$ ruby -d -rubygems -e 'puts 42'

kerryb

Erlang R15B (erts-5.9) [source] [64-bit] [smp:4:4] [async-threads:0] [hipe] [kernel-poll:false]

Eshell V5.9  (abort with ^G)
1> c(doubler).
{ok,doubler}
2> c(monitor).
{ok,monitor}
3> 
3> monitor:start().
new

kerryb

Verifying that +kerryb is my blockchain ID. No, me neither. https://onename.com/kerryb

kerryb

class RomanNumerals
  NUMBERS = {
    1000 => "M",
    900 => "CM",
    500 => "D",
    400 => "CD",
    100 => "C",
    90 => "XC",
    50 => "L",
    40 => "XL",

kerryb

ytd() {
  ytd=$(find ~/Dropbox/Apps/tapiriik -name $(date +%Y)-*_Running*.tcx -print0 | xargs -0 -n1 awk '/DistanceMeters/ {a=$0} END {gsub(/\s*<[^>]*>/, "", a); print a}' | paste -sd+ - | sed 's/\(.*\)/0.000621371 * (\1)/' | bc | sed 's/\(\..\).*/\1/')
  proj=$(echo "$ytd * 365 / $(date +%j)" | bc)
  echo "YTD: $ytd. Projected: $proj"
}

kerryb

defmodule Child do
  def task(parent) do
    Process.sleep(:timer.seconds(2))
    send(parent, :finished)
  end
end

kerryb

README

A spike looking at adding basic given-when-then steps to ExUnit tests.

Features

• define tests as sequences of calls to given_, when_ and then_ (unfortunately when is a reserved word)
• match steps by calling defwhen etc with a string matching the one used in the step
• interpolate values into step descriptions using {braces}
• placeholder variable names are available as methods on the magic args variable

kerryb

defmodule MyApp.Repo do
  require Logger
  alias Ecto.Association.NotLoaded
  alias Ecto.{Changeset, Schema}
  alias MyApp.Auth.User

  ...

  @doc """
  Wrapper round `Ecto.Repo.insert/2`, which logs the fields of the inserted