require "bundler/gem_tasks"
task :build => :init
task :default => :init

def jekyll_version
  ENV.fetch('JEKYLL_VERSION')
end

task :init do
  sh "git clone git://github.com/jekyll/jekyll.git jekyll" unless Dir.exist? "jekyll/.git"
  Dir.chdir("jekyll") { sh "git checkout v#{jekyll_version}" }
  rm_rf "site"
  cp_r "jekyll/site", "site"
end

task :teardown do
  rm_rf "site"
  rm_rf "jekyll"
end