Gem::Server and allows users to serve gems for consumption by `gem --remote-install`.
gem_server starts an HTTP server on the given port and serves the following:
“/” - Browsing of gem spec files for installed gems
“/specs.#{Gem.marshal_version}.gz” - specs name/version/platform index
“/latest_specs.#{Gem.marshal_version}.gz” - latest specs name/version/platform index
“/quick/” - Individual gemspecs
“/gems” - Direct access to download the installable gems
“/rdoc?q=” - Search for installed rdoc documentation
gem_server = Gem::Server.new Gem.dir, 8089, false gem_server.run
CSS is copy & paste from rdoc-style.css, RDoc V1.0.1 - 20041108
# File rubygems/server.rb, line 432 def initialize(gem_dirs, port, daemon, launch = nil, addresses = nil) Gem::RDoc.load_rdoc Socket.do_not_reverse_lookup = true @gem_dirs = Array gem_dirs @port = port @daemon = daemon @launch = launch @addresses = addresses logger = WEBrick::Log.new nil, WEBrick::BasicLog::FATAL @server = WEBrick::HTTPServer.new :DoNotListen => true, :Logger => logger @spec_dirs = @gem_dirs.map { |gem_dir| File.join gem_dir, 'specifications' } @spec_dirs.reject! { |spec_dir| !File.directory? spec_dir } reset_gems @have_rdoc_4_plus = nil end
# File rubygems/server.rb, line 453 def add_date(res) res['date'] = @spec_dirs.map do |spec_dir| File.stat(spec_dir).mtime end.max end
# File rubygems/server.rb, line 465 def doc_root(gem_name) if have_rdoc_4_plus? "/doc_root/#{u gem_name}/" else "/doc_root/#{u gem_name}/rdoc/index.html" end end
# File rubygems/server.rb, line 473 def have_rdoc_4_plus? @have_rdoc_4_plus ||= Gem::Requirement.new('>= 4.0.0.preview2').satisfied_by? Gem::RDoc.rdoc_version end
# File rubygems/server.rb, line 478 def latest_specs(req, res) reset_gems res['content-type'] = 'application/x-gzip' add_date res latest_specs = Gem::Specification.latest_specs specs = latest_specs.sort.map do |spec| platform = spec.original_platform || Gem::Platform::RUBY [spec.name, spec.version, platform] end specs = Marshal.dump specs if req.path =~ /\.gz$/ specs = Gem::Util.gzip specs res['content-type'] = 'application/x-gzip' else res['content-type'] = 'application/octet-stream' end if req.request_method == 'HEAD' res['content-length'] = specs.length else res.body << specs end end
# File rubygems/server.rb, line 868 def launch listeners = @server.listeners.map{|l| l.addr[2] } # TODO: 0.0.0.0 == any, not localhost. host = listeners.any?{|l| l == '0.0.0.0'} ? 'localhost' : listeners.first say "Launching browser to http://#{host}:#{@port}" system("#{@launch} http://#{host}:#{@port}") end
Creates server sockets based on the addresses option. If no addresses were given a server socket for all interfaces is created.
# File rubygems/server.rb, line 512 def listen(addresses = @addresses) addresses = [nil] unless addresses listeners = 0 addresses.each do |address| begin @server.listen address, @port @server.listeners[listeners..-1].each do |listener| host, port = listener.addr.values_at 2, 1 host = "[#{host}]" if host =~ /:/ # we don't reverse lookup say "Server started at http://#{host}:#{port}" end listeners = @server.listeners.length rescue SystemCallError next end end if @server.listeners.empty? say "Unable to start a server." say "Check for running servers or your --bind and --port arguments" terminate_interaction 1 end end
# File rubygems/server.rb, line 539 def prerelease_specs(req, res) reset_gems res['content-type'] = 'application/x-gzip' add_date res specs = Gem::Specification.select do |spec| spec.version.prerelease? end.sort.map do |spec| platform = spec.original_platform || Gem::Platform::RUBY [spec.name, spec.version, platform] end specs = Marshal.dump specs if req.path =~ /\.gz$/ specs = Gem::Util.gzip specs res['content-type'] = 'application/x-gzip' else res['content-type'] = 'application/octet-stream' end if req.request_method == 'HEAD' res['content-length'] = specs.length else res.body << specs end end
# File rubygems/server.rb, line 569 def quick(req, res) reset_gems res['content-type'] = 'text/plain' add_date res case req.request_uri.path when %r|^/quick/(Marshal.#{Regexp.escape Gem.marshal_version}/)?(.*?)\.gemspec\.rz$| then marshal_format, full_name = $1, $2 specs = Gem::Specification.find_all_by_full_name(full_name) selector = full_name.inspect if specs.empty? res.status = 404 res.body = "No gems found matching #{selector}" elsif specs.length > 1 res.status = 500 res.body = "Multiple gems found matching #{selector}" elsif marshal_format res['content-type'] = 'application/x-deflate' res.body << Gem.deflate(Marshal.dump(specs.first)) end else raise WEBrick::HTTPStatus::NotFound, "`#{req.path}' not found." end end
Can be used for quick navigation to the rdoc documentation. You can then define a search shortcut for your browser. E.g. in Firefox connect ‘shortcut:rdoc’ to localhost:8808/rdoc?q=%s template. Then you can directly open the ActionPack documentation by typing ‘rdoc actionp’. If there are multiple hits for the search term, they are presented as a list with links.
Search algorithm aims for an intuitive search:
first try to find the gems and documentation folders which name starts with the search term
search for entries, that contain the search term
show all the gems
If there is only one search hit, user is immediately redirected to the documentation for the particular gem, otherwise a list with results is shown.
Note: please adjust paths accordingly use for example ‘locate yaml.rb’ and ‘gem environment’ to identify directories, that are specific for your local installation
install Ruby sources
cd /usr/src sudo apt-get source ruby
generate documentation
rdoc -o /usr/lib/ruby/gems/1.8/doc/core/rdoc \ /usr/lib/ruby/1.8 ruby1.8-1.8.7.72
By typing ‘rdoc core’ you can now access the core documentation
# File rubygems/server.rb, line 730 def rdoc(req, res) query = req.query['q'] show_rdoc_for_pattern("#{query}*", res) && return show_rdoc_for_pattern("*#{query}*", res) && return template = ERB.new RDOC_NO_DOCUMENTATION res['content-type'] = 'text/html' res.body = template.result binding end
# File rubygems/server.rb, line 597 def root(req, res) reset_gems add_date res raise WEBrick::HTTPStatus::NotFound, "`#{req.path}' not found." unless req.path == '/' specs = [] total_file_count = 0 Gem::Specification.each do |spec| total_file_count += spec.files.size deps = spec.dependencies.map do |dep| { "name" => dep.name, "type" => dep.type, "version" => dep.requirement.to_s, } end deps = deps.sort_by { |dep| [dep["name"].downcase, dep["version"]] } deps.last["is_last"] = true unless deps.empty? # executables executables = spec.executables.sort.collect { |exec| {"executable" => exec} } executables = nil if executables.empty? executables.last["is_last"] = true if executables # Pre-process spec homepage for safety reasons begin homepage_uri = URI.parse(spec.homepage) if [URI::HTTP, URI::HTTPS].member? homepage_uri.class homepage_uri = spec.homepage else homepage_uri = "." end rescue URI::InvalidURIError homepage_uri = "." end specs << { "authors" => spec.authors.sort.join(", "), "date" => spec.date.to_s, "dependencies" => deps, "doc_path" => doc_root(spec.full_name), "executables" => executables, "only_one_executable" => (executables && executables.size == 1), "full_name" => spec.full_name, "has_deps" => !deps.empty?, "homepage" => homepage_uri, "name" => spec.name, "rdoc_installed" => Gem::RDoc.new(spec).rdoc_installed?, "ri_installed" => Gem::RDoc.new(spec).ri_installed?, "summary" => spec.summary, "version" => spec.version.to_s, } end specs << { "authors" => "Chad Fowler, Rich Kilmer, Jim Weirich, Eric Hodel and others", "dependencies" => [], "doc_path" => doc_root("rubygems-#{Gem::VERSION}"), "executables" => [{"executable" => 'gem', "is_last" => true}], "only_one_executable" => true, "full_name" => "rubygems-#{Gem::VERSION}", "has_deps" => false, "homepage" => "https://guides.rubygems.org/", "name" => 'rubygems', "ri_installed" => true, "summary" => "RubyGems itself", "version" => Gem::VERSION, } specs = specs.sort_by { |spec| [spec["name"].downcase, spec["version"]] } specs.last["is_last"] = true # tag all specs with first_name_entry last_spec = nil specs.each do |spec| is_first = last_spec.nil? || (last_spec["name"].downcase != spec["name"].downcase) spec["first_name_entry"] = is_first last_spec = spec end # create page from template template = ERB.new(DOC_TEMPLATE) res['content-type'] = 'text/html' values = { "gem_count" => specs.size.to_s, "specs" => specs, "total_file_count" => total_file_count.to_s } # suppress 1.9.3dev warning about unused variable values = values result = template.result binding res.body = result end
# File rubygems/server.rb, line 787 def run listen WEBrick::Daemon.start if @daemon @server.mount_proc "/specs.#{Gem.marshal_version}", method(:specs) @server.mount_proc "/specs.#{Gem.marshal_version}.gz", method(:specs) @server.mount_proc "/latest_specs.#{Gem.marshal_version}", method(:latest_specs) @server.mount_proc "/latest_specs.#{Gem.marshal_version}.gz", method(:latest_specs) @server.mount_proc "/prerelease_specs.#{Gem.marshal_version}", method(:prerelease_specs) @server.mount_proc "/prerelease_specs.#{Gem.marshal_version}.gz", method(:prerelease_specs) @server.mount_proc "/quick/", method(:quick) @server.mount_proc("/gem-server-rdoc-style.css") do |req, res| res['content-type'] = 'text/css' add_date res res.body << RDOC_CSS end @server.mount_proc "/", method(:root) @server.mount_proc "/rdoc", method(:rdoc) file_handlers = { '/gems' => '/cache/', } if have_rdoc_4_plus? @server.mount '/doc_root', RDoc::Servlet, '/doc_root' else file_handlers['/doc_root'] = '/doc/' end @gem_dirs.each do |gem_dir| file_handlers.each do |mount_point, mount_dir| @server.mount(mount_point, WEBrick::HTTPServlet::FileHandler, File.join(gem_dir, mount_dir), true) end end trap("INT") { @server.shutdown; exit! } trap("TERM") { @server.shutdown; exit! } launch if @launch @server.start end
Returns true and prepares http response, if rdoc for the requested gem name pattern was found.
The search is based on the file system content, not on the gems metadata. This allows additional documentation folders like ‘core’ for the Ruby core documentation - just put it underneath the main doc folder.
# File rubygems/server.rb, line 756 def show_rdoc_for_pattern(pattern, res) found_gems = Dir.glob("{#{@gem_dirs.join ','}}/doc/#{pattern}").select do |path| File.exist? File.join(path, 'rdoc/index.html') end case found_gems.length when 0 return false when 1 new_path = File.basename(found_gems[0]) res.status = 302 res['Location'] = doc_root new_path return true else doc_items = [] found_gems.each do |file_name| base_name = File.basename(file_name) doc_items << { :name => base_name, :url => doc_root(new_path), :summary => '' } end template = ERB.new(RDOC_SEARCH_TEMPLATE) res['content-type'] = 'text/html' result = template.result binding res.body = result return true end end
# File rubygems/server.rb, line 842 def specs(req, res) reset_gems add_date res specs = Gem::Specification.sort_by(&:sort_obj).map do |spec| platform = spec.original_platform || Gem::Platform::RUBY [spec.name, spec.version, platform] end specs = Marshal.dump specs if req.path =~ /\.gz$/ specs = Gem::Util.gzip specs res['content-type'] = 'application/x-gzip' else res['content-type'] = 'application/octet-stream' end if req.request_method == 'HEAD' res['content-length'] = specs.length else res.body << specs end end