Class: Vx::Lib::Shell::SSH

Inherits:
Object
  • Object
show all
Defined in:
lib/vx/lib/shell/ssh.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(ssh) ⇒ SSH

Returns a new instance of SSH.



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# File 'lib/vx/lib/shell/ssh.rb', line 12

def initialize(ssh)
  @connection = ssh
end

Instance Attribute Details

#connection ⇒ Object (readonly)

Returns the value of attribute connection.



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# File 'lib/vx/lib/shell/ssh.rb', line 10

def connection
  @connection
end

#host ⇒ Object (readonly)

Returns the value of attribute host.



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# File 'lib/vx/lib/shell/ssh.rb', line 10

def host
  @host
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/vx/lib/shell/ssh.rb', line 10

def options
  @options
end

#user ⇒ Object (readonly)

Returns the value of attribute user.



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# File 'lib/vx/lib/shell/ssh.rb', line 10

def user
  @user
end

Instance Method Details

#exec(*args, &block) ⇒ Object 



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# File 'lib/vx/lib/shell/ssh.rb', line 16

def exec(*args, &block)
  options       = args.last.is_a?(Hash) ? args.pop : {}
  command       = args.first
  home          = options[:home] || "$HOME"

  exit_code     = nil
  timeout       = Shell::Timeout.new options.delete(:timeout)
  read_timeout  = Shell::ReadTimeout.new options.delete(:read_timeout)

  prefix = "/usr/bin/env - TERM=ansi USER=$USER HOME=#{home} SHELL=/bin/bash /bin/bash -l"
  if command
    command = "#{prefix} -c #{Shellwords.escape command}"
  else
    command = prefix
  end

  channel = spawn_channel command, read_timeout, options, &block

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

  channel.on_request("exit-signal") do |_,data|
    exit_code = data.read_long * -1
  end

  pool channel, timeout, read_timeout

  compute_exit_code command, exit_code, timeout, read_timeout
end