Class: Buildr::Transports::SFTP

Inherits:
Transport show all
Defined in:
lib/core/transports.rb

Instance Attribute Summary collapse

Attributes inherited from Transport

#base_path, #options, #uri

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Transport

#download, perform

Constructor Details

#initialize(url, options) ⇒ SFTP

Returns a new instance of SFTP.



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# File 'lib/core/transports.rb', line 311

def initialize(url, options)
  super
  # SSH options are based on the username/password from the URI.
  ssh_options = { :port=>@uri.port, :username=>@uri.user }.merge(options || {})
  ssh_options[:password] ||= SFTP.passwords[@uri.host]
  begin
    puts "Connecting to #{@uri.host}" if Rake.application.options.trace
    session = Net::SSH.start(@uri.host, ssh_options)
    SFTP.passwords[@uri.host] = ssh_options[:password]
  rescue Net::SSH::AuthenticationFailed=>ex
    # Only if running with console, prompt for password.
    if !ssh_options[:password] && $stdout.isatty
      password = HighLine.new.ask("Password for #{@uri.host}:") { |q| q.echo = "*" }
      ssh_options[:password] = password
      retry
    end
    raise
  end
  @sftp = session.sftp.connect
  puts "connected" if Rake.application.options.trace
end

Instance Attribute Details

#sftp ⇒ Object (readonly)

Returns the value of attribute sftp.



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# File 'lib/core/transports.rb', line 309

def sftp
  @sftp
end

Class Method Details

.passwords ⇒ Object 



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# File 'lib/core/transports.rb', line 304

def passwords()
  @passwords ||= {}
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/core/transports.rb', line 375

def close()
  @sftp.close
  @sftp = nil
end

#mkpath(path) ⇒ Object 



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# File 'lib/core/transports.rb', line 364

def mkpath(path)
  # To create a path, we need to create all its parent.
  # We use realpath to determine if the path already exists,
  # otherwise mkdir fails.
  puts "Creating path #{@base_path}" if Rake.application.options.trace
  path.split("/").inject(@base_path) do |base, part|
    @sftp.realpath(base+part) rescue @sftp.mkdir base + part
    "#{base}#{part}/"
  end
end

#upload(source, path) ⇒ Object 



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# File 'lib/core/transports.rb', line 333

def upload(source, path)
  File.open(source) do |file|
    with_progress_bar path.split("/").last, File.size(source) do |progress|
      with_digests(@options[:digests]) do |digester|
        puts "Uploading to #{@base_path}#{path}" if Rake.application.options.trace
        @sftp.open_handle(@base_path + path, "w") do |handle|
          # Writing in chunks gives us the benefit of a progress bar,
          # but also require that we maintain a position in the file,
          # since write() with two arguments always writes at position 0.
          pos = 0
          while chunk = file.read(32 * 4096) 
            @sftp.write(handle, chunk, pos)
            pos += chunk.size
            digester << chunk
            progress << chunk
          end
        end

        # Upload all the digests.
        digester.each do |type, hexdigest|
          puts "Uploading signature to #{@base_path}#{path}.#{type}" if Rake.application.options.trace
          @sftp.open_handle("#{@base_path}#{path}.#{type}", "w") do |handle|
            @sftp.write(handle, "#{hexdigest}  #{path}")
          end
        end
      end

    end 
  end
end