Class: LSync::Methods::RSync

Inherits:
LSync::Method show all
Defined in:
lib/lsync/methods/rsync.rb

Direct Known Subclasses

RSyncSnapshot

Instance Attribute Summary

Attributes inherited from LSync::Method

#logger

Instance Method Summary collapse

Methods included from EventHandler

#abort!, #fire, #on, #try

Constructor Details

#initialize(direction, options = {}) ⇒ RSync

Returns a new instance of RSync.



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# File 'lib/lsync/methods/rsync.rb', line 25

def initialize(direction, options = {})
  super(options)
  @direction = direction
  @command = options[:command] || "rsync"
  
  @options = options
  @connection = nil
end

Instance Method Details

#run(master_server, target_server, directory) ⇒ Object 



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# File 'lib/lsync/methods/rsync.rb', line 34

def run(master_server, target_server, directory)
  arguments = (@options[:arguments] || ["--archive"]) + (directory.options[:arguments] || [])

  local_server = nil
  remote_server = nil

  if @direction == :push
    local_server = master_server
    remote_server = target_server

    dst = remote_server.connection_string(directory)
    src = local_server.full_path(directory)
  else
    local_server = target_server
    remote_server = master_server

    src = remote_server.connection_string(directory)
    dst = local_server.full_path(directory)
  end

  arguments += connect_arguments(local_server, remote_server)

  # Create the destination backup directory
  @connection = target_server.connect
  @connection.send_object([:mkdir_p, target_server.full_path(directory)])

  @logger.info "In directory #{Dir.getwd}..."
  Dir.chdir(local_server.root) do
    if run_handler(src, dst, arguments) == false
      raise BackupMethodError.new("Backup from #{src.dump} to #{dst.dump} failed.", :method => self)
    end
  end
end

#run_command(cmd) ⇒ Object 



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# File 'lib/lsync/methods/rsync.rb', line 82

def run_command(cmd)
  return LSync.run_command(cmd, @logger) == 0
end

#run_handler(src, dst, arguments) ⇒ Object 



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# File 'lib/lsync/methods/rsync.rb', line 68

def run_handler(src, dst, arguments)
  run_command([@command] + arguments + [src, dst])
end

#should_run?(master_server, current_server, target_server) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/lsync/methods/rsync.rb', line 72

def should_run?(master_server, current_server, target_server)
  if @direction == :push
    return current_server == master_server
  elsif @direction == :pull
    return target_server.is_local?
  else
    return false
  end
end