require 'erb' require 'socket' require 'gem2rpm/package' require 'gem2rpm/distro' require 'gem2rpm/format' require 'gem2rpm/spec_fetcher' require 'gem2rpm/specification' module Gem2Rpm Gem2Rpm::VERSION = "0.9.1" class Exception < RuntimeError; end class DownloadUrlError < Exception; end def self.find_download_url(name, version) dep = Gem::Dependency.new(name, "=#{version}") fetcher = Gem2Rpm::SpecFetcher.new(Gem::SpecFetcher.fetcher) spec_and_source, errors = fetcher.spec_for_dependency(dep, false) raise DownloadUrlError.new(errors.first.error.message) unless errors.empty? spec, source = spec_and_source.first if source && source.uri download_path = source.uri.to_s download_path += "gems/" end download_path end def Gem2Rpm.convert(fname, template=TEMPLATE, out=$stdout, nongem=true, local=false, doc_subpackage = true) package = Gem2Rpm::Package.new(fname) format = Gem2Rpm::Format.new(package) spec = Gem2Rpm::Specification.new(package.spec) spec.description ||= spec.summary download_path = "" unless local begin download_path = find_download_url(spec.name, spec.version) rescue DownloadUrlError => e $stderr.puts "Warning: Could not retrieve full URL for #{spec.name}\nWarning: Edit the specfile and enter the full download URL as 'Source0' manually" $stderr.puts e.inspect end end template = ERB.new(template, 0, '-') out.puts template.result(binding) rescue Gem::Exception => e puts e end # Returns the email address of the packager (i.e., the person running # gem2spec). Taken from RPM macros if present, constructed from system # username and hostname otherwise. def Gem2Rpm.packager() packager = `rpmdev-packager`.chomp rescue '' if packager.empty? packager = `rpm --eval '%{packager}'`.chomp rescue '' end if packager.empty? or packager == '%{packager}' passwd_entry = Etc::getpwnam(Etc::getlogin) packager = "#{(passwd_entry && passwd_entry.gecos) || Etc::getlogin } <#{Etc::getlogin}@#{Socket::gethostname}>" end packager end def Gem2Rpm.template_dir File.join(File.dirname(__FILE__), '..', 'templates') end TEMPLATE = File.read File.join(template_dir, "#{Distro.nature.to_s}.spec.erb") end # Local Variables: # ruby-indent-level: 2 # End: