export.rb

module Rip
  module Commands
    x "Exports an environment into a self-contained compressed archive, using tar and gzip."
    o "export [ENVIRONMENT]"
    def export(options={}, env=Rip::Env.active)
      `tar c --file=#{env}.tar -C #{File.join(Rip.dir, env)} . && gzip #{env}.tar`
    end
    
    x "Imports an exported environment."
    o "Specify --as=ENVIRONMENT to change the environment name"
    def import(options={}, file=nil, *args)
      ui.abort "Please provide a compressed environment to import" unless file
      ui.abort "Cannot read #{file}" unless File.exist?(file)
      original_env = File.basename(file).split(".").first
      env = options[:as] || original_env
      destination = File.join(Rip.dir, env)
      ui.abort "Environment '#{env}' already exists!" if File.exist?(destination)
      `mkdir -p #{destination} && tar xzf #{file} -C #{destination}`
      `mv #{File.join(destination, original_env)}.ripenv #{File.join(destination, env)}.ripenv` unless env == original_env
      ui.puts "Imported #{file} as #{env}"
    end
    
    x "Exports an environment into the vendor directory of the current project"
    x "This is suitable for freezing a particular dependency set into the project for"
    x "distribution to users who might not have rip installed."
    o "vendor [env [directory]] (defaults to current env and 'vendor')"
    def vendor(options={}, env=Rip::Env.active, dir='vendor')
      `cp -r #{File.join(Rip.dir, env)} #{dir} && rm #{File.join(dir, env)}.ripenv`
      ui.puts "Environment '#{env}' has been copied into #{dir}."
      ui.puts "Be sure to add #{File.join(dir, 'lib')} to your application's $LOAD_PATH."
    end
  end
end