Class: Train::Extras::LinuxCommand
- Inherits:
-
CommandWrapperBase
- Object
- CommandWrapperBase
- Train::Extras::LinuxCommand
- Defined in:
- lib/train/extras/command_wrapper.rb
Overview
Wrap linux commands and add functionality like sudo.
Class Method Summary collapse
Instance Method Summary collapse
-
#initialize(backend, options) ⇒ LinuxCommand
constructor
A new instance of LinuxCommand.
- #run(command) ⇒ Object
- #verify ⇒ Object
Constructor Details
#initialize(backend, options) ⇒ LinuxCommand
Returns a new instance of LinuxCommand.
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# File 'lib/train/extras/command_wrapper.rb', line 40 def initialize(backend, ) @backend = backend () @shell = [:shell] @shell_options = [:shell_options] # e.g. '--login' @shell_command = [:shell_command] # e.g. '/bin/sh' @sudo = [:sudo] @sudo_options = [:sudo_options] @sudo_password = [:sudo_password] @sudo_command = [:sudo_command] @user = [:user] end |
Class Method Details
.active?(options) ⇒ Boolean
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# File 'lib/train/extras/command_wrapper.rb', line 83 def self.active?() .is_a?(Hash) && ( [:sudo] || [:shell] ) end |
Instance Method Details
#run(command) ⇒ Object
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# File 'lib/train/extras/command_wrapper.rb', line 79 def run(command) shell_wrap(sudo_wrap(command)) end |
#verify ⇒ Object
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# File 'lib/train/extras/command_wrapper.rb', line 55 def verify res = @backend.run_command(run("echo")) return nil if res.exit_status == 0 rawerr = res.stdout + " " + res.stderr { "Sorry, try again" => ["Wrong sudo password.", :bad_sudo_password], "sudo: no tty present and no askpass program specified" => ["Sudo requires a password, please configure it.", :sudo_password_required], "sudo: command not found" => ["Can't find sudo command. Please either install and "\ "configure it on the target or deactivate sudo.", :sudo_command_not_found], "sudo: sorry, you must have a tty to run sudo" => ["Sudo requires a TTY. Please see the README on how to configure "\ "sudo to allow for non-interactive usage.", :sudo_no_tty], }.each do |sudo, human| rawerr = human if rawerr.include? sudo end rawerr end |