run

#!/usr/bin/env ruby -r rubygems -r thor
class Dotfiles < Thor
  desc "install", "install the dotfiles in your home"
  def install
    invoke :bootstrap
    Dir.glob(sources) do |file|
      target = expanded_target(file)
      if create_or_overwrite?(target)
        File.symlink(file, target)
      end
    end
  end
  
  desc "bootstrap", "make sure you have some cool gems"
  def bootstrap
    # This should check for our dependencies. Nothing to do for now.
  end
  
private

  def create_or_overwrite?(file)
    if File.exists?(file)
      overwrite?(file)
    else
      true
    end
  end
  
  def overwrite?(file)
    return false if our_symlink?(file)
    puts "#{File.basename(file)} already exists, what do you want to do? [s]kip, [o]verwrite, [k]eep both."
    case $stdin.getc
    when "s" then false
    when "k"
      File.rename(file, file + ".old")
      true
    when "o"
      File.delete(file)
      true
    else false
    end
  end
  
  def our_symlink?(file)
    # TODO: check that it is pointing to us
    File.symlink?(file)
  end
  
  def sources
    File.join(File.expand_path(File.dirname(__FILE__)), "source", "*")
  end
  
  def expanded_target(file)
    File.expand_path("~/.#{File.basename(file)}")
  end
end

Dotfiles.start