Method: Pssh::Pty#initialize

Defined in:
lib/pssh/pty.rb

#initialize ⇒ Pty

Returns a new instance of Pty.



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# File 'lib/pssh/pty.rb', line 12

def initialize
  @stream = ''
  set_command
  clear_environment
  Thread.new do
    begin
      @read, @write, @pid = PTY.spawn(@command)
      @write.winsize = $stdout.winsize
      if new?
        system("clear")
        pssh = "# [ pssh terminal ]\n# Type `exit` to terminate this terminal.\n"
        $stdout.puts pssh
        Signal.trap(:WINCH) do
          resize!
        end
        system("stty raw -echo")
      end

      begin
        io = [@read]
        io << $stdin if new?
        rs, ws = IO.select(io)
        r = rs[0]
        while (data = r.read_nonblock(2048)) do
          if new? && r == $stdin
            @write.write_nonblock data
          else
            $stdout.write_nonblock data if new?
            data.encode!('UTF-16', 'UTF-8', :invalid => :replace, :replace => '')
            data.encode!('UTF-8', 'UTF-16')
            if data.valid_encoding?
              store data
              Pssh.socket.write data
            end
          end
        end
      rescue Exception => e
        if e.is_a?(Errno::EAGAIN)
          retry
        else
          system("stty -raw echo") if new?
          puts 'Terminating Pssh.'
          Kernel.exit!
        end
      end
    end
  end
end