Class: URI::HTTP

Inherits:

Object

• Object
• URI::HTTP

Defined in:

lib/buildr/core/transports.rb

Overview

:nodoc:

Instance Method Summary

• #read(options = nil, &block) ⇒ Object

  See URI::Generic#read.

Instance Method Details

#read(options = nil, &block) ⇒ Object

See URI::Generic#read

# File 'lib/buildr/core/transports.rb', line 274

def read(options = nil, &block)
  options ||= {}
  
  user = self.user || options[:username]
  password = self.password || options[:password]
  
  connect do |http|
    trace "Requesting #{self}"
    headers = { 'If-Modified-Since' => CGI.rfc1123_date(options[:modified].utc) } if options[:modified]
    request = Net::HTTP::Get.new(request_uri.empty? ? '/' : request_uri, headers)
    request.basic_auth user, password if user
    
    http.request request do |response|
      case response
      when Net::HTTPNotModified
        # No modification, nothing to do.
        trace 'Not modified since last download'
        return nil
      when Net::HTTPRedirection
        # Try to download from the new URI, handle relative redirects.
        trace "Redirected to #{response['Location']}"
        rself = self + URI.parse(response['Location'])
        rself.user, rself.password = user, password
        return rself.read(options, &block)
      when Net::HTTPOK
        info "Downloading #{self}"
        result = nil
        with_progress_bar options[:progress], path.split('/').last, response.content_length do |progress|
          if block
            response.read_body do |chunk|
              block.call chunk
              progress << chunk
            end
          else
            result = ''
            response.read_body do |chunk|
              result << chunk
              progress << chunk
            end
          end
        end
        return result
      when Net::HTTPNotFound
        raise NotFoundError, "Looking for #{self} and all I got was a 404!"
      else
        raise RuntimeError, "Failed to download #{self}: #{response.message}"
      end
    end
  end
end