require 'rubygems/command' require 'rubygems/local_remote_options' require 'rubygems/version_option' require 'rubygems/source_info_cache' class Gem::Commands::FetchCommand < Gem::Command include Gem::LocalRemoteOptions include Gem::VersionOption def initialize super 'fetch', 'Download a gem and place it in the current directory' add_bulk_threshold_option add_proxy_option add_source_option add_version_option add_platform_option add_prerelease_option end def arguments # :nodoc: 'GEMNAME name of gem to download' end def defaults_str # :nodoc: "--version '#{Gem::Requirement.default}'" end def usage # :nodoc: "#{program_name} GEMNAME [GEMNAME ...]" end def execute version = options[:version] || Gem::Requirement.default all = Gem::Requirement.default != version gem_names = get_all_gem_names gem_names.each do |gem_name| dep = Gem::Dependency.new gem_name, version dep.prerelease = options[:prerelease] specs_and_sources = Gem::SpecFetcher.fetcher.fetch(dep, all, true, dep.prerelease?) specs_and_sources, errors = Gem::SpecFetcher.fetcher.fetch_with_errors(dep, all, true, dep.prerelease?) spec, source_uri = specs_and_sources.sort_by { |s,| s.version }.last if spec.nil? then show_lookup_failure gem_name, version, errors next end path = Gem::RemoteFetcher.fetcher.download spec, source_uri FileUtils.mv path, spec.file_name say "Downloaded #{spec.full_name}" end end end