Class: Chrysalis::VCS::HTTP::Repository

Inherits:
Repository show all
Defined in:
lib/chrysalis/vcs/http/repository.rb

Overview

Implements support for downloading dependencies from a web server.

Repositories of this type are identified by http:// URLs.

Example:

- http://www.example.com/dist/libfoo-1.2.8.tar.gz

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Repository

inherited, retrieve

Constructor Details

#initialize(url, params = {}) ⇒ Repository

Returns a new instance of Repository.



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# File 'lib/chrysalis/vcs/http/repository.rb', line 26

def initialize(url, params = {})
  @url = url
  @params = params
end

Class Method Details

.retrieves?(url, params = {}) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chrysalis/vcs/http/repository.rb', line 20

def self.retrieves?(url, params = {})
  uri = URI::parse(url)
  return (uri.scheme == 'http' || uri.scheme == 'https')
end

Instance Method Details

#retrieve(to = '.') ⇒ Object

Raises:

  • (IOError) 


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# File 'lib/chrysalis/vcs/http/repository.rb', line 31

def retrieve(to = '.')
  path = Pathname.new(to).join(download_to)
  raise IOError, "Refusing to overwrite existing path. (path: #{path})" if path.exist?

  unless @params[:noop]
    puts ""
    puts "Downloading #{@url} ..."

    location = URI::parse(@url)
    Net::HTTP.start(location.host, location.port) do |http|
      mode = (RUBY_PLATFORM.match(/mswin/) ? 'wb' : 'w')
      
      ::File.open(path, mode) do |f|
        http.get(location.path) do |stream|
          f.write stream
        end
      end
    end
  end
  
  extract_path = Archive.extract(path.to_s, to, @params)
  WorkingCopy.new(:url => @url,
                  :path => extract_path)
end