odlp

# EXAMPLE 1: Cascade
# Two modules happen to have the same method ('say').
# If we include the Shouting module last, the Shouting 'say' method overwrites the Talkable 'say' method.

module Talkable
  def say (str)
    puts str
  end
end

odlp

puts `clear`
exercises = ["How much wood can a woodchuck chuck?", "What's the time Mr.Wolf?", "Peter Piper picked a peck of pickled peppers."]
def check_diff text, input
  text.length.times.map{|i| 1 unless text.chars[i] == input.chars[i]}.count(1) + (input.length > text.length ? input.length - text.length : 0)
end
exercises.each do |exercise|
  puts "Type the following:\n---\n#{exercise}\n---\n\n"
  start_time, input, end_time = Time.now, gets.chomp, Time.now
  puts "Mistakes: #{check_diff(exercise, input)} characters. Time taken: #{(end_time - start_time).round(2)} seconds.\n\n"
end

odlp

# Convert file encoding for CSV in OS X:
iconv -f iso-8859-1 -t UTF-8 original.csv > utf-output.csv
 
# Where 
# -f is current encoding
# -t is target encoding
 
# Guestimate of original file encoding with:
file -I

odlp

result = ActiveRecord::Base.connection.execute("SELECT DISTINCT SUBSTRING(postcode, '[A-Z0-9]{3,} [0-9]{1}') FROM postcodes")

result.values.first
# => ['AB1 1']

odlp

# Export table to CSV from psql:
COPY table_name TO 'filepath' WITH DELIMITER AS ',' CSV HEADER;

odlp

def iso8601_string? datetime_str
 (datetime_str =~ /\A\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d:[0-5]\d([+-][0-2]\d:[0-5]\d|Z)\z/) == 0
end

odlp

before(:each) { @request.env["CONTENT_TYPE"] = "application/json" }

odlp

# Add support for 'options' request test. Place in /spec/support
# https://github.com/rspec/rspec-rails/issues/925#issuecomment-62527611

module ActionDispatch::Integration::RequestHelpers
  def options(path, parameters = nil, headers_or_env = nil)
    process :options, path, parameters, headers_or_env
  end
end

odlp

#!/usr/bin/env ruby
require 'yaml'

CONFIG_FILE_NAME          = 'brewstrap.yml'
COMMAND_INSTALL_CASK      = 'brew install caskroom/cask/brew-cask'
COMMAND_BREW_UPDATE       = 'brew update'
COMMAND_FORMULA_INSTALL   = 'brew install'
COMMAND_BREW_TAP          = 'brew tap'
COMMAND_BREW_CASK_INSTALL = 'brew cask install --appdir=/Applications'

odlp

#!/bin/sh

set -e

export LANG=en_US.UTF-8
export LC_ALL=en_US.UTF-8

# Ensure Jenkins is using rbenv
export PATH=/usr/local/bin:$PATH
if which rbenv > /dev/null; then eval "$(rbenv init -)"; fi