Class: Divvy::Server

Inherits:
Object
  • Object
show all
Defined in:
lib/divvy/server.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(host, options = {}) ⇒ Server

Returns a new instance of Server.



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# File 'lib/divvy/server.rb', line 6

def initialize(host, options = {})
  @host = host
  @options = options
end

Instance Attribute Details

#host ⇒ Object (readonly)

Returns the value of attribute host.



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# File 'lib/divvy/server.rb', line 11

def host
  @host
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/divvy/server.rb', line 11

def options
  @options
end

Instance Method Details

#remote_command(command, options = {}) ⇒ Object 



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# File 'lib/divvy/server.rb', line 13

def remote_command(command, options = {})
  options = {
    :verbose => Divvy.verbose, 
    :raise_on_exit_code => true,
    :raise_errors => true
  }.merge(options)
  puts command if options[:verbose]
  response_data = ''
  begin
    key_path = File.expand_path(self.options[:key]) if self.options[:key]
    Net::SSH.start(host, self.options[:user], :password => self.options[:password], :keys => [key_path]) do |ssh|
      ssh.open_channel do |channel|
        channel.exec(command) do |ch, success|
          raise "FAILED: couldn't execute command (ssh.channel.exec failure)" unless success

          channel.on_data do |ch, data|  # stdout
            print data if options[:verbose]
            STDOUT.flush
            response_data << data
          end

          channel.on_extended_data do |ch, type, data|
            next unless type == 1  # only handle stderr
            $stderr.print data
          end

          channel.on_request("exit-status") do |ch, data|
            exit_code = data.read_long
            raise NonZeroExitCode.new(command, exit_code) if exit_code > 0 && options[:raise_on_exit_code]
          end

          channel.on_request("exit-signal") do |ch, data|
            puts "SIGNAL: #{data.read_long}"
          end
        end
      end
      ssh.loop
    end
  rescue Exception => err
    return false unless options[:raise_errors]
    raise
  end
  response_data
end

#scp(source, target, options = {}) ⇒ Object 



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# File 'lib/divvy/server.rb', line 58

def scp(source, target, options = {})
  key_path = File.expand_path(self.options[:key]) if self.options[:key]
  Net::SCP.start(host, self.options[:user], :password => self.options[:password], :keys => [key_path]) do |scp|
    scp.upload! source, target do |ch, name, sent, total|
      puts "#{name}: #{sent}/#{total}"
    end
  end
end