Class: Backup::RemoteData

Inherits:
Archive
  • Object
show all
Includes:
Utilities::Helpers, SSHKit::DSL
Defined in:
lib/backup/remote_data.rb

Defined Under Namespace

Classes: DSL, Error

Instance Attribute Summary collapse

Attributes inherited from Archive

#name, #options

Instance Method Summary collapse

Constructor Details

#initialize(model, name, &block) ⇒ RemoteData

Returns a new instance of RemoteData.



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# File 'lib/backup/remote_data.rb', line 31

def initialize(model, name, &block)
  @model   = model
  @name    = name.to_s
  @options = {
    :sudo        => false,
    :root        => false,
    :paths       => [],
    :excludes    => [],
    :tar_options => ''
  }

  DSL.new(@options).instance_eval(&block)

  #
  self.server_host = @options[:server_host]
  self.server_ssh_user = @options[:server_ssh_user]
  self.server_ssh_password = @options[:server_ssh_password]
  self.server_path = @options[:server_path]
  self.server_command = @options[:server_command]
end

Instance Attribute Details

#server_command ⇒ Object

Returns the value of attribute server_command.



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# File 'lib/backup/remote_data.rb', line 25

def server_command
  @server_command
end

#server_host ⇒ Object

server options



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# File 'lib/backup/remote_data.rb', line 20

def server_host
  @server_host
end

#server_path ⇒ Object

Returns the value of attribute server_path.



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# File 'lib/backup/remote_data.rb', line 24

def server_path
  @server_path
end

#server_ssh_key ⇒ Object

Returns the value of attribute server_ssh_key.



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# File 'lib/backup/remote_data.rb', line 23

def server_ssh_key
  @server_ssh_key
end

#server_ssh_password ⇒ Object

Returns the value of attribute server_ssh_password.



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# File 'lib/backup/remote_data.rb', line 22

def server_ssh_password
  @server_ssh_password
end

#server_ssh_user ⇒ Object

Returns the value of attribute server_ssh_user.



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# File 'lib/backup/remote_data.rb', line 21

def server_ssh_user
  @server_ssh_user
end

Instance Method Details

#perform! ⇒ Object 



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# File 'lib/backup/remote_data.rb', line 52

def perform!
  Logger.info "Creating Archive '#{ name }'..."

  # local archive
  path = File.join(Config.tmp_path, @model.trigger, 'archives')
  FileUtils.mkdir_p(path)

  extension = 'tar'
  #temp_archive_file = File.join(path, "#{ name }.#{ extension }")

  remote = Backup::Remote::Command.new


  Dir.mktmpdir do |temp_dir|
    temp_local_file = File.join("#{temp_dir}", File.basename(server_path))
    #temp_local_file = File.join(path, File.basename(server_path))
    #temp_local_file = Tempfile.new("").path+"."+File.extname(server_path)

    remote_archive_file = server_path

    # generate backup on remote server
    cmd_remote = server_command
    res_generate = remote.run_ssh_cmd(
        server_host, server_ssh_user, server_ssh_password,
        cmd_remote)

    if res_generate[:res]==0
      raise 'Cannot create backup on server'
    end

    # download backup
    res_download = remote.ssh_download_file(
        server_host, server_ssh_user, server_ssh_password,
        remote_archive_file, temp_local_file)

    if res_download[:res]==0
      raise 'Cannot download file from server'
    end

    # delete archive on server
    res_delete = remote.run_ssh_cmd(
        server_host, server_ssh_user, server_ssh_password,
        "rm #{remote_archive_file}")


    # process archive locally

    pipeline = Pipeline.new

    #temp_tar_root= tar_root
    temp_tar_root= temp_dir
    pipeline.add(
        "#{ tar_command } #{ tar_options } -cPf - -C #{temp_tar_root } #{ File.basename(temp_local_file) }",
        tar_success_codes
    )

    extension = 'tar'
    @model.compressor.compress_with do |command, ext|
      pipeline << command
      extension << ext
    end if @model.compressor

    pipeline << "#{ utility(:cat) } > '#{ File.join(path, "#{ name }.#{ extension }") }'"

    #puts "commands: #{pipeline.commands}"
    #exit

    pipeline.run


    if pipeline.success?
      Logger.info "Archive '#{ name }' Complete!"
    else
      raise Error, "Failed to Create Archive '#{ name }'\n" +
          pipeline.error_messages
    end

  end
end