Darky

yet another shell wrapper....

Syntax

 # Block
 Darky.new do |shell|
  shell['/usr/local'] do
    shell.exec "pwd" # "/usr/local"
  end
  shell.exec "pwd" # "/home/shuki"

  shell = shell['/usr/local']
  shell.exec "pwd" # "/usr/local"

  shell.chdir "/tmp" do
    shell.exec "pwd" # "/tmp"
  end
  shell.exec "pwd" # "/usr/local"

  shell.chdir! "/tmp"
  shell.exec "pwd" # "/tmp"
 end

 # Instance
 shell = Darky.new(:dir => '/tmp')
 shell.exec "pwd" # /tmp

 # By using shell.async, you can make calls asynchronously.
 obj = shell.async.ln_lrth # run `ls -lrth`
 obj.on_success { |resp| STDOUT.puts resp.out }
 obj.on_failure { |resp| STDOUT.puts response.err }

TODO

• use send method to send commands + think about arguments
• can be included to any class
• support environment variables (sticky or non-sticky)
• support eventmachine
• support threads
• support celluloid.io
• support threads
• support callbacks success, failure, or just .callback
• exec without fork
• support sudo prompt
• exceptions - failure, permission denied
• internal / external logger
• logger should support filters, like ignore /shuki.*/
• open4/3
• timeout + handler
• kill when using proxy object
• save the state when using custom client
• can be included into class - to describe a service