Module: Crew::Context::SSH

Included in:
Fusion, Vagrant
Defined in:
lib/crew/context/ssh.rb

Instance Method Summary collapse

Instance Method Details

#cd(target_dir) ⇒ Object 



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# File 'lib/crew/context/ssh.rb', line 12

def cd(target_dir)
  with_callbacks do
    previous_current_dir = current_dir
    @current_dir = File.expand_path(target_dir, previous_current_dir)
    @home.logger.cd @current_dir
    if block_given?
      begin
        yield
      ensure
        @home.logger.cd previous_current_dir
        cd previous_current_dir
      end
    end
  end
end

#current_dir ⇒ Object 



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# File 'lib/crew/context/ssh.rb', line 4

def current_dir
  @current_dir ||= begin
    result = sh_raw("pwd")
    raise unless result[2] == 0
    result[0].chomp
  end
end

#reconnect! ⇒ Object 



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# File 'lib/crew/context/ssh.rb', line 97

def reconnect!
  @_shell = nil
end

#save_data(data, target_path) ⇒ Object 



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# File 'lib/crew/context/ssh.rb', line 86

def save_data(data, target_path)
  sh "echo -n #{escape(data)} > #{escape(target_path)}", stdin_data: data
end

#save_file(local_path, target_path) ⇒ Object 



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# File 'lib/crew/context/ssh.rb', line 90

def save_file(local_path, target_path)
  with_callbacks do
    raise "#{local_path} does not exist" unless File.exist?(local_path)
    _shell.scp.upload! local_path, target_path
  end
end

#sh_raw(cmd, stdin = nil) ⇒ Object 



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# File 'lib/crew/context/ssh.rb', line 51

def sh_raw(cmd, stdin = nil)
  with_callbacks do
    stdout_data = ""
    stderr_data = ""
    exit_code = nil
    exit_signal = nil
    _shell.open_channel do |channel|
      channel.exec(cmd) do |ch, success|
        channel.on_data do |ch,data|
          stdout_data << data
        end

        channel.on_extended_data do |ch,type,data|
          stderr_data << data
        end

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

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

        if stdin
          channel.send_data stdin
          channel.eof!
        end
      end
    end
    _shell.loop
    [stdout_data, stderr_data, exit_code, exit_signal]
  end
end

#sh_with_code(cmd, sh_opts) ⇒ Object 



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# File 'lib/crew/context/ssh.rb', line 28

def sh_with_code(cmd, sh_opts)
  original_cmd = cmd
  runner = "bash -l -c %s"
  stdin = nil
  cmd = "cd #{escape(current_dir)} && #{cmd}"
  if sh_opts[:sudo]
    enter_sudo_password
    if @sudo_password && !opts[:dont_use_sudo_password]
      raw_cmd = cmd
      @home.logger.sh "SUDO (using password) #{original_cmd}"
      cmd = "sudo -S #{runner % escape(cmd)}"
      stdin = "#{@sudo_password}\n"
    else
      @home.logger.sh "SUDO (using not password) #{original_cmd}"
      cmd = "sudo #{runner % escape(cmd)}"
    end
  else
    @home.logger.sh original_cmd
    cmd = runner % escape(cmd)
  end
  sh_raw cmd, stdin
end