Rakefile

# from http://github.com/ryanb/dotfiles/tree/master
#
# Copyright (c) 2008 Ryan Bates
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

require 'rake'
require 'fileutils'

task :default => :install

desc "install the dot files into user's home directory"
task :install do
  Dir.glob('**/*', File::FNM_DOTMATCH ).reject { |f| File.directory?(f) || f =~ /\.git/ }.each do |file|
    next if %w[. .. Rakefile README LICENSE .git].include? file
    next if FileTest.symlink?( File.join(ENV['HOME'], file) )

    process_file(file)
  end
end

def process_file(file)
  @replace_all = false
  
  dir = File.dirname( file )
  system %Q{mkdir -p ~/#{dir}/ } unless dir == '.'

  # handle normal dotfiles
  if File.exist?(File.join(ENV['HOME'], file))
    if @replace_all
      replace_file(file)
    else
      print "overwrite ~/#{file}? [ynaq] "
      case $stdin.gets.chomp
      when 'a'
        @replace_all = true
        replace_file(file)
      when 'y'
        replace_file(file)
      when 'q'
        exit
      else
        puts "skipping ~/#{file}"
      end
    end
  else
    link_file(file)
  end
end

def replace_file(file)
  system %Q{rm "$HOME/#{file}" }
  link_file(file)
end

def link_file(file)
  puts "linking ~/#{file}"
  system %Q{ln -s "$PWD/#{file}" "$HOME/#{file}"}
end