require 'rubygems' require 'rubygems/format' require 'time' begin gem 'builder' require 'builder/xchar' rescue LoadError end ## # Top level class for building the gem repository index. class Gem::Indexer include Gem::UserInteraction ## # Build indexes for RubyGems older than 1.2.0 when true attr_accessor :build_legacy ## # Build indexes for RubyGems 1.2.0 and newer when true attr_accessor :build_modern ## # Index install location attr_reader :dest_directory ## # Specs index install location attr_reader :dest_specs_index ## # Latest specs index install location attr_reader :dest_latest_specs_index ## # Prerelease specs index install location attr_reader :dest_prerelease_specs_index ## # Index build directory attr_reader :directory ## # Create an indexer that will index the gems in +directory+. def initialize(directory, options = {}) require 'fileutils' require 'tmpdir' require 'zlib' unless defined?(Builder::XChar) then raise "Gem::Indexer requires that the XML Builder library be installed:" \ "\n\tgem install builder" end options = { :build_legacy => true, :build_modern => true }.merge options @build_legacy = options[:build_legacy] @build_modern = options[:build_modern] @rss_title = options[:rss_title] @rss_host = options[:rss_host] @rss_gems_host = options[:rss_gems_host] @dest_directory = directory @directory = File.join(Dir.tmpdir, "gem_generate_index_#{$$}") marshal_name = "Marshal.#{Gem.marshal_version}" @master_index = File.join @directory, 'yaml' @marshal_index = File.join @directory, marshal_name @quick_dir = File.join @directory, 'quick' @quick_marshal_dir = File.join @quick_dir, marshal_name @quick_marshal_dir_base = File.join "quick", marshal_name # FIX: UGH @quick_index = File.join @quick_dir, 'index' @latest_index = File.join @quick_dir, 'latest_index' @specs_index = File.join @directory, "specs.#{Gem.marshal_version}" @latest_specs_index = File.join(@directory, "latest_specs.#{Gem.marshal_version}") @prerelease_specs_index = File.join(@directory, "prerelease_specs.#{Gem.marshal_version}") @dest_specs_index = File.join(@dest_directory, "specs.#{Gem.marshal_version}") @dest_latest_specs_index = File.join(@dest_directory, "latest_specs.#{Gem.marshal_version}") @dest_prerelease_specs_index = File.join(@dest_directory, "prerelease_specs.#{Gem.marshal_version}") @rss_index = File.join @directory, 'index.rss' @files = [] end ## # Abbreviate the spec for downloading. Abbreviated specs are only used for # searching, downloading and related activities and do not need deployment # specific information (e.g. list of files). So we abbreviate the spec, # making it much smaller for quicker downloads. def abbreviate(spec) spec.files = [] spec.test_files = [] spec.rdoc_options = [] spec.extra_rdoc_files = [] spec.cert_chain = [] spec end ## # Build various indicies def build_indicies # Marshal gemspecs are used by both modern and legacy RubyGems Gem::Specification.dirs = [] Gem::Specification.add_specs(*map_gems_to_specs(gem_file_list)) build_marshal_gemspecs build_legacy_indicies if @build_legacy build_modern_indicies if @build_modern build_rss compress_indicies end ## # Builds indicies for RubyGems older than 1.2.x def build_legacy_indicies index = collect_specs say "Generating Marshal master index" Gem.time 'Generated Marshal master index' do open @marshal_index, 'wb' do |io| io.write index.dump end end @files << @marshal_index @files << "#{@marshal_index}.Z" end ## # Builds Marshal quick index gemspecs. def build_marshal_gemspecs count = Gem::Specification.count progress = ui.progress_reporter count, "Generating Marshal quick index gemspecs for #{count} gems", "Complete" files = [] Gem.time 'Generated Marshal quick index gemspecs' do Gem::Specification.each do |spec| spec_file_name = "#{spec.original_name}.gemspec.rz" marshal_name = File.join @quick_marshal_dir, spec_file_name marshal_zipped = Gem.deflate Marshal.dump(spec) open marshal_name, 'wb' do |io| io.write marshal_zipped end files << marshal_name progress.updated spec.original_name end progress.done end @files << @quick_marshal_dir files end ## # Build a single index for RubyGems 1.2 and newer def build_modern_index(index, file, name) say "Generating #{name} index" Gem.time "Generated #{name} index" do open(file, 'wb') do |io| specs = index.map do |*spec| # We have to splat here because latest_specs is an array, while the # others are hashes. spec = spec.flatten.last platform = spec.original_platform # win32-api-1.0.4-x86-mswin32-60 unless String === platform then alert_warning "Skipping invalid platform in gem: #{spec.full_name}" next end platform = Gem::Platform::RUBY if platform.nil? or platform.empty? [spec.name, spec.version, platform] end specs = compact_specs(specs) Marshal.dump(specs, io) end end end ## # Builds indicies for RubyGems 1.2 and newer. Handles full, latest, prerelease def build_modern_indicies prerelease, released = Gem::Specification.partition { |s| s.version.prerelease? } latest_specs = Gem::Specification.latest_specs build_modern_index(released.sort, @specs_index, 'specs') build_modern_index(latest_specs.sort, @latest_specs_index, 'latest specs') build_modern_index(prerelease.sort, @prerelease_specs_index, 'prerelease specs') @files += [@specs_index, "#{@specs_index}.gz", @latest_specs_index, "#{@latest_specs_index}.gz", @prerelease_specs_index, "#{@prerelease_specs_index}.gz"] end ## # Builds an RSS feed for past two days gem releases according to the gem's # date. def build_rss if @rss_host.nil? or @rss_gems_host.nil? then if Gem.configuration.really_verbose then alert_warning "no --rss-host or --rss-gems-host, RSS generation disabled" end return end require 'cgi' require 'rubygems/text' extend Gem::Text Gem.time 'Generated rss' do open @rss_index, 'wb' do |io| rss_host = CGI.escapeHTML @rss_host rss_title = CGI.escapeHTML(@rss_title || 'gems') io.puts <<-HEADER #{rss_title} http://#{rss_host} Recently released gems from http://#{rss_host} RubyGems v#{Gem::VERSION} http://cyber.law.harvard.edu/rss/rss.html HEADER today = Gem::Specification::TODAY yesterday = today - 86400 index = Gem::Specification.select do |spec| spec_date = spec.date # TODO: remove this and make YAML based specs properly normalized spec_date = Time.parse(spec_date.to_s) if Date === spec_date spec_date >= yesterday && spec_date <= today end index.sort_by { |spec| [-spec.date.to_i, spec] }.each do |spec| file_name = File.basename spec.cache_file gem_path = CGI.escapeHTML "http://#{@rss_gems_host}/gems/#{file_name}" size = File.stat(spec.loaded_from).size # rescue next description = spec.description || spec.summary || '' authors = Array spec.authors emails = Array spec.email authors = emails.zip(authors).map do |email, author| email += " (#{author})" if author and not author.empty? end.join ', ' description = description.split(/\n\n+/).map do |chunk| format_text chunk, 78 end description = description.join "\n\n" item = '' item << <<-ITEM #{CGI.escapeHTML spec.full_name} <pre>#{CGI.escapeHTML description.chomp}</pre> #{CGI.escapeHTML authors} #{CGI.escapeHTML spec.full_name} #{spec.date.rfc2822} ITEM item << <<-ITEM if spec.homepage #{CGI.escapeHTML spec.homepage} ITEM item << <<-ITEM ITEM io.puts item end io.puts <<-FOOTER FOOTER end end @files << @rss_index end def map_gems_to_specs gems gems.map { |gemfile| if File.size(gemfile) == 0 then alert_warning "Skipping zero-length gem: #{gemfile}" next end begin spec = Gem::Format.from_file_by_path(gemfile).spec spec.loaded_from = gemfile # HACK: fuck this shit - borks all tests that use pl1 # if File.basename(gemfile, ".gem") != spec.original_name then # exp = spec.full_name # exp << " (#{spec.original_name})" if # spec.original_name != spec.full_name # msg = "Skipping misnamed gem: #{gemfile} should be named #{exp}" # alert_warning msg # next # end abbreviate spec sanitize spec spec rescue SignalException => e alert_error "Received signal, exiting" raise rescue Exception => e msg = ["Unable to process #{gemfile}", "#{e.message} (#{e.class})", "\t#{e.backtrace.join "\n\t"}"].join("\n") alert_error msg end }.compact end ## # Collect specifications from .gem files from the gem directory. def collect_specs(gems = gem_file_list) Deprecate.skip_during do index = Gem::SourceIndex.new map_gems_to_specs(gems).each do |spec| index.add_spec spec, spec.original_name end index end end ## # Compresses indicies on disk #-- # All future files should be compressed using gzip, not deflate def compress_indicies say "Compressing indicies" Gem.time 'Compressed indicies' do if @build_legacy then compress @marshal_index, 'Z' paranoid @marshal_index, 'Z' end if @build_modern then gzip @specs_index gzip @latest_specs_index gzip @prerelease_specs_index end end end ## # Compacts Marshal output for the specs index data source by using identical # objects as much as possible. def compact_specs(specs) names = {} versions = {} platforms = {} specs.map do |(name, version, platform)| names[name] = name unless names.include? name versions[version] = version unless versions.include? version platforms[platform] = platform unless platforms.include? platform [names[name], versions[version], platforms[platform]] end end ## # Compress +filename+ with +extension+. def compress(filename, extension) data = Gem.read_binary filename zipped = Gem.deflate data open "#{filename}.#{extension}", 'wb' do |io| io.write zipped end end ## # List of gem file names to index. def gem_file_list Dir[File.join(@dest_directory, "gems", '*.gem')] end ## # Builds and installs indicies. def generate_index make_temp_directories build_indicies install_indicies rescue SignalException ensure FileUtils.rm_rf @directory end ## # Zlib::GzipWriter wrapper that gzips +filename+ on disk. def gzip(filename) Zlib::GzipWriter.open "#{filename}.gz" do |io| io.write Gem.read_binary(filename) end end ## # Install generated indicies into the destination directory. def install_indicies verbose = Gem.configuration.really_verbose say "Moving index into production dir #{@dest_directory}" if verbose files = @files files.delete @quick_marshal_dir if files.include? @quick_dir if files.include? @quick_marshal_dir and not files.include? @quick_dir then files.delete @quick_marshal_dir dst_name = File.join(@dest_directory, @quick_marshal_dir_base) FileUtils.mkdir_p File.dirname(dst_name), :verbose => verbose FileUtils.rm_rf dst_name, :verbose => verbose FileUtils.mv(@quick_marshal_dir, dst_name, :verbose => verbose, :force => true) end files = files.map do |path| path.sub(/^#{Regexp.escape @directory}\/?/, '') # HACK? end files.each do |file| src_name = File.join @directory, file dst_name = File.join @dest_directory, file FileUtils.rm_rf dst_name, :verbose => verbose FileUtils.mv(src_name, @dest_directory, :verbose => verbose, :force => true) end end ## # Make directories for index generation def make_temp_directories FileUtils.rm_rf @directory FileUtils.mkdir_p @directory, :mode => 0700 FileUtils.mkdir_p @quick_marshal_dir end ## # Ensure +path+ and path with +extension+ are identical. def paranoid(path, extension) data = Gem.read_binary path compressed_data = Gem.read_binary "#{path}.#{extension}" unless data == Gem.inflate(compressed_data) then raise "Compressed file #{compressed_path} does not match uncompressed file #{path}" end end ## # Sanitize the descriptive fields in the spec. Sometimes non-ASCII # characters will garble the site index. Non-ASCII characters will # be replaced by their XML entity equivalent. def sanitize(spec) spec.summary = sanitize_string(spec.summary) spec.description = sanitize_string(spec.description) spec.post_install_message = sanitize_string(spec.post_install_message) spec.authors = spec.authors.collect { |a| sanitize_string(a) } spec end ## # Sanitize a single string. def sanitize_string(string) return string unless string # HACK the #to_s is in here because RSpec has an Array of Arrays of # Strings for authors. Need a way to disallow bad values on gemspec # generation. (Probably won't happen.) string = string.to_s begin Builder::XChar.encode string rescue NameError, NoMethodError string.to_xs end end ## # Perform an in-place update of the repository from newly added gems. Only # works for modern indicies, and sets #build_legacy to false when run. def update_index @build_legacy = false make_temp_directories specs_mtime = File.stat(@dest_specs_index).mtime newest_mtime = Time.at 0 updated_gems = gem_file_list.select do |gem| gem_mtime = File.stat(gem).mtime newest_mtime = gem_mtime if gem_mtime > newest_mtime gem_mtime >= specs_mtime end if updated_gems.empty? then say 'No new gems' terminate_interaction 0 end specs = map_gems_to_specs updated_gems prerelease, released = specs.partition { |s| s.version.prerelease? } files = build_marshal_gemspecs Gem.time 'Updated indexes' do update_specs_index released, @dest_specs_index, @specs_index update_specs_index released, @dest_latest_specs_index, @latest_specs_index update_specs_index(prerelease, @dest_prerelease_specs_index, @prerelease_specs_index) end compress_indicies verbose = Gem.configuration.really_verbose say "Updating production dir #{@dest_directory}" if verbose files << @specs_index files << "#{@specs_index}.gz" files << @latest_specs_index files << "#{@latest_specs_index}.gz" files << @prerelease_specs_index files << "#{@prerelease_specs_index}.gz" files = files.map do |path| path.sub(/^#{Regexp.escape @directory}\/?/, '') # HACK? end files.each do |file| src_name = File.join @directory, file dst_name = File.join @dest_directory, file # REFACTOR: duped above FileUtils.mv src_name, dst_name, :verbose => verbose, :force => true File.utime newest_mtime, newest_mtime, dst_name end end ## # Combines specs in +index+ and +source+ then writes out a new copy to # +dest+. For a latest index, does not ensure the new file is minimal. def update_specs_index(index, source, dest) specs_index = Marshal.load Gem.read_binary(source) index.each do |spec| platform = spec.original_platform platform = Gem::Platform::RUBY if platform.nil? or platform.empty? specs_index << [spec.name, spec.version, platform] end specs_index = compact_specs specs_index.uniq.sort open dest, 'wb' do |io| Marshal.dump specs_index, io end end end