gistfile1.builder

#!/usr/bin/env ruby
url = `git config --get remote.origin.url`.chomp
url.gsub!(%r|git://github.com/(.*\.git)|, 'git@github.com:\1')
if url =~ /^git@github/
  puts "git remote rm writeable"
  puts `git remote rm writeable`
  puts "git remote add writeable #{url}"
  puts `git remote add writeable #{url}`
else
  raise "only supports github URLs"
end