Class: Knife::Pkg::ShellCommand

Inherits:
Object
  • Object
show all
Defined in:
lib/knife-pkg/shell_command.rb

Class Method Summary collapse

Class Method Details

.exec(cmd, session) ⇒ Object 



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# File 'lib/knife-pkg/shell_command.rb', line 21

def self.exec(cmd, session)

  stdout_data, stderr_data = "", ""
  exit_code, exit_signal = nil, nil
  session.open_channel do |channel|
    channel.exec(cmd) do |_, success|
      raise RuntimeError, "Command \"#{@cmd}\" could not be executed!" if !success

      channel.on_data do |_, data|
        stdout_data += data
      end

      channel.on_extended_data do |_,_,data|
        stderr_data += data
      end

      channel.on_request("exit-status") do |_,data|
        exit_code = data.read_long
      end

      channel.on_request("exit-signal") do |_, data|
        exit_signal = data.read_long
      end
    end
  end
  session.loop

  result = ShellCommandResult.new(cmd, stdout_data, stderr_data, exit_code.to_i)

  raise_error!(result) unless result.succeeded?

  return result
end

.raise_error!(result) ⇒ Object

Raises:

  • (RuntimeError) 


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# File 'lib/knife-pkg/shell_command.rb', line 55

def self.raise_error!(result)
  raise RuntimeError, "Command failed! #{result.to_s}" 
end