A ruby script to change pairs

pair

#!/usr/bin/env ruby

def usage
  puts "./pair [name]: pair two people"
  puts "./pair       : switch to just steve"
  exit
end

def set_config(name, email)
  `git config user.name "#{name}"`

  `git config user.email #{email}`
end

usage && exit if ARGV.first == "help"

pairs = {
  "sk-ko" => {
    :left  => "Steve Klabnik",
    :right => "Katrina Owen",
    :email => "steve+katrina@steveklabnik.com",
  },
}

name = ""
email = ""

if ARGV.size == 0
  name = "Steve Klabnik"
  email = "steve@steveklabnik.com"

  puts "Moving to just Steve."
else
  pair = pairs[ARGV.first]
  name = "#{pair[:left]} + #{pair[:right]}"
  email = pair[:email]

  puts "Pairing #{name}"
end

set_config(name, email)