# frozen_string_literal: true require_relative '../command' ## # Installs RubyGems itself. This command is ordinarily only available from a # RubyGems checkout or tarball. class Gem::Commands::SetupCommand < Gem::Command HISTORY_HEADER = /^#\s*[\d.a-zA-Z]+\s*\/\s*\d{4}-\d{2}-\d{2}\s*$/.freeze VERSION_MATCHER = /^#\s*([\d.a-zA-Z]+)\s*\/\s*\d{4}-\d{2}-\d{2}\s*$/.freeze ENV_PATHS = %w[/usr/bin/env /bin/env].freeze def initialize require 'tmpdir' super 'setup', 'Install RubyGems', :format_executable => false, :document => %w[ri], :force => true, :site_or_vendor => 'sitelibdir', :destdir => '', :prefix => '', :previous_version => '', :regenerate_binstubs => true, :regenerate_plugins => true add_option '--previous-version=VERSION', 'Previous version of RubyGems', 'Used for changelog processing' do |version, options| options[:previous_version] = version end add_option '--prefix=PREFIX', 'Prefix path for installing RubyGems', 'Will not affect gem repository location' do |prefix, options| options[:prefix] = File.expand_path prefix end add_option '--destdir=DESTDIR', 'Root directory to install RubyGems into', 'Mainly used for packaging RubyGems' do |destdir, options| options[:destdir] = File.expand_path destdir end add_option '--[no-]vendor', 'Install into vendorlibdir not sitelibdir' do |vendor, options| options[:site_or_vendor] = vendor ? 'vendorlibdir' : 'sitelibdir' end add_option '--[no-]format-executable', 'Makes `gem` match ruby', 'If Ruby is ruby18, gem will be gem18' do |value, options| options[:format_executable] = value end add_option '--[no-]document [TYPES]', Array, 'Generate documentation for RubyGems', 'List the documentation types you wish to', 'generate. For example: rdoc,ri' do |value, options| options[:document] = case value when nil then %w[rdoc ri] when false then [] else value end end add_option '--[no-]rdoc', 'Generate RDoc documentation for RubyGems' do |value, options| if value options[:document] << 'rdoc' else options[:document].delete 'rdoc' end options[:document].uniq! end add_option '--[no-]ri', 'Generate RI documentation for RubyGems' do |value, options| if value options[:document] << 'ri' else options[:document].delete 'ri' end options[:document].uniq! end add_option '--[no-]regenerate-binstubs', 'Regenerate gem binstubs' do |value, options| options[:regenerate_binstubs] = value end add_option '--[no-]regenerate-plugins', 'Regenerate gem plugins' do |value, options| options[:regenerate_plugins] = value end add_option '-f', '--[no-]force', 'Forcefully overwrite binstubs' do |value, options| options[:force] = value end add_option('-E', '--[no-]env-shebang', 'Rewrite executables with a shebang', 'of /usr/bin/env') do |value, options| options[:env_shebang] = value end @verbose = nil end def check_ruby_version required_version = Gem::Requirement.new '>= 2.3.0' unless required_version.satisfied_by? Gem.ruby_version alert_error "Expected Ruby version #{required_version}, is #{Gem.ruby_version}" terminate_interaction 1 end end def defaults_str # :nodoc: "--format-executable --document ri --regenerate-binstubs" end def description # :nodoc: <<-EOF Installs RubyGems itself. RubyGems installs RDoc for itself in GEM_HOME. By default this is: #{Gem.dir} If you prefer a different directory, set the GEM_HOME environment variable. RubyGems will install the gem command with a name matching ruby's prefix and suffix. If ruby was installed as `ruby18`, gem will be installed as `gem18`. By default, this RubyGems will install gem as: #{Gem.default_exec_format % 'gem'} EOF end module MakeDirs def mkdir_p(path, **opts) super (@mkdirs ||= []) << path end end def execute @verbose = Gem.configuration.really_verbose check_ruby_version require 'fileutils' if Gem.configuration.really_verbose extend FileUtils::Verbose else extend FileUtils end extend MakeDirs lib_dir, bin_dir = make_destination_dirs man_dir = generate_default_man_dir install_lib lib_dir install_executables bin_dir remove_old_bin_files bin_dir remove_old_lib_files lib_dir # Can be removed one we drop support for bundler 2.2.3 (the last version installing man files to man_dir) remove_old_man_files man_dir if man_dir && File.exist?(man_dir) install_default_bundler_gem bin_dir if mode = options[:dir_mode] @mkdirs.uniq! File.chmod(mode, @mkdirs) end say "RubyGems #{Gem::VERSION} installed" regenerate_binstubs(bin_dir) if options[:regenerate_binstubs] regenerate_plugins(bin_dir) if options[:regenerate_plugins] uninstall_old_gemcutter documentation_success = install_rdoc say if @verbose say "-" * 78 say end if options[:previous_version].empty? options[:previous_version] = Gem::VERSION.sub(/[0-9]+$/, '0') end options[:previous_version] = Gem::Version.new(options[:previous_version]) show_release_notes say say "-" * 78 say say "RubyGems installed the following executables:" say bin_file_names.map {|name| "\t#{name}\n" } say unless bin_file_names.grep(/#{File::SEPARATOR}gem$/) say "If `gem` was installed by a previous RubyGems installation, you may need" say "to remove it by hand." say end if documentation_success if options[:document].include? 'rdoc' say "Rdoc documentation was installed. You may now invoke:" say " gem server" say "and then peruse beautifully formatted documentation for your gems" say "with your web browser." say "If you do not wish to install this documentation in the future, use the" say "--no-document flag, or set it as the default in your ~/.gemrc file. See" say "'gem help env' for details." say end if options[:document].include? 'ri' say "Ruby Interactive (ri) documentation was installed. ri is kind of like man " say "pages for Ruby libraries. You may access it like this:" say " ri Classname" say " ri Classname.class_method" say " ri Classname#instance_method" say "If you do not wish to install this documentation in the future, use the" say "--no-document flag, or set it as the default in your ~/.gemrc file. See" say "'gem help env' for details." say end end end def install_executables(bin_dir) prog_mode = options[:prog_mode] || 0755 executables = { 'gem' => 'bin' } executables.each do |tool, path| say "Installing #{tool} executable" if @verbose Dir.chdir path do bin_file = "gem" dest_file = target_bin_path(bin_dir, bin_file) bin_tmp_file = File.join Dir.tmpdir, "#{bin_file}.#{$$}" begin bin = File.readlines bin_file bin[0] = shebang File.open bin_tmp_file, 'w' do |fp| fp.puts bin.join end install bin_tmp_file, dest_file, :mode => prog_mode bin_file_names << dest_file ensure rm bin_tmp_file end next unless Gem.win_platform? begin bin_cmd_file = File.join Dir.tmpdir, "#{bin_file}.bat" File.open bin_cmd_file, 'w' do |file| file.puts <<-TEXT @ECHO OFF IF NOT "%~f0" == "~f0" GOTO :WinNT @"#{File.basename(Gem.ruby).chomp('"')}" "#{dest_file}" %1 %2 %3 %4 %5 %6 %7 %8 %9 GOTO :EOF :WinNT @"#{File.basename(Gem.ruby).chomp('"')}" "%~dpn0" %* TEXT end install bin_cmd_file, "#{dest_file}.bat", :mode => prog_mode ensure rm bin_cmd_file end end end end def shebang if options[:env_shebang] ruby_name = RbConfig::CONFIG['ruby_install_name'] @env_path ||= ENV_PATHS.find {|env_path| File.executable? env_path } "#!#{@env_path} #{ruby_name}\n" else "#!#{Gem.ruby}\n" end end def install_lib(lib_dir) libs = { 'RubyGems' => 'lib' } libs['Bundler'] = 'bundler/lib' libs.each do |tool, path| say "Installing #{tool}" if @verbose lib_files = files_in path Dir.chdir path do install_file_list(lib_files, lib_dir) end end end def install_rdoc gem_doc_dir = File.join Gem.dir, 'doc' rubygems_name = "rubygems-#{Gem::VERSION}" rubygems_doc_dir = File.join gem_doc_dir, rubygems_name begin Gem.ensure_gem_subdirectories Gem.dir rescue SystemCallError # ignore end if File.writable? gem_doc_dir and (not File.exist? rubygems_doc_dir or File.writable? rubygems_doc_dir) say "Removing old RubyGems RDoc and ri" if @verbose Dir[File.join(Gem.dir, 'doc', 'rubygems-[0-9]*')].each do |dir| rm_rf dir end require_relative '../rdoc' fake_spec = Gem::Specification.new 'rubygems', Gem::VERSION def fake_spec.full_gem_path File.expand_path '../../../..', __FILE__ end generate_ri = options[:document].include? 'ri' generate_rdoc = options[:document].include? 'rdoc' rdoc = Gem::RDoc.new fake_spec, generate_rdoc, generate_ri rdoc.generate return true elsif @verbose say "Skipping RDoc generation, #{gem_doc_dir} not writable" say "Set the GEM_HOME environment variable if you want RDoc generated" end return false end def install_default_bundler_gem(bin_dir) specs_dir = File.join(default_dir, "specifications", "default") mkdir_p specs_dir, :mode => 0755 bundler_spec = Dir.chdir("bundler") { Gem::Specification.load("bundler.gemspec") } # Remove bundler-*.gemspec in default specification directory. Dir.entries(specs_dir). select {|gs| gs.start_with?("bundler-") }. each {|gs| File.delete(File.join(specs_dir, gs)) } default_spec_path = File.join(specs_dir, "#{bundler_spec.full_name}.gemspec") Gem.write_binary(default_spec_path, bundler_spec.to_ruby) bundler_spec = Gem::Specification.load(default_spec_path) # The base_dir value for a specification is inferred by walking up from the # folder where the spec was `loaded_from`. In the case of default gems, we # walk up two levels, because they live at `specifications/default/`, whereas # in the case of regular gems we walk up just one level because they live at # `specifications/`. However, in this case, the gem we are installing is # misdetected as a regular gem, when it's a default gem in reality. This is # because when there's a `:destdir`, the `loaded_from` path has changed and # doesn't match `Gem.default_specifications_dir` which is the criteria to # tag a gem as a default gem. So, in that case, write the correct # `@base_dir` directly. bundler_spec.instance_variable_set(:@base_dir, File.dirname(File.dirname(specs_dir))) # Remove gemspec that was same version of vendored bundler. normal_gemspec = File.join(default_dir, "specifications", "bundler-#{bundler_spec.version}.gemspec") if File.file? normal_gemspec File.delete normal_gemspec end # Remove gem files that were same version of vendored bundler. if File.directory? bundler_spec.gems_dir Dir.entries(bundler_spec.gems_dir). select {|default_gem| File.basename(default_gem) == "bundler-#{bundler_spec.version}" }. each {|default_gem| rm_r File.join(bundler_spec.gems_dir, default_gem) } end bundler_bin_dir = bundler_spec.bin_dir mkdir_p bundler_bin_dir, :mode => 0755 bundler_spec.executables.each do |e| cp File.join("bundler", bundler_spec.bindir, e), File.join(bundler_bin_dir, e) end require_relative '../installer' Dir.chdir("bundler") do built_gem = Gem::Package.build(bundler_spec) begin Gem::Installer.at( built_gem, env_shebang: options[:env_shebang], format_executable: options[:format_executable], force: options[:force], install_as_default: true, bin_dir: bin_dir, install_dir: default_dir, wrappers: true ).install ensure FileUtils.rm_f built_gem end end bundler_spec.executables.each {|executable| bin_file_names << target_bin_path(bin_dir, executable) } say "Bundler #{bundler_spec.version} installed" end def make_destination_dirs lib_dir, bin_dir = Gem.default_rubygems_dirs unless lib_dir lib_dir, bin_dir = generate_default_dirs end mkdir_p lib_dir, :mode => 0755 mkdir_p bin_dir, :mode => 0755 return lib_dir, bin_dir end def generate_default_man_dir prefix = options[:prefix] if prefix.empty? man_dir = RbConfig::CONFIG['mandir'] return unless man_dir else man_dir = File.join prefix, 'man' end prepend_destdir_if_present(man_dir) end def generate_default_dirs prefix = options[:prefix] site_or_vendor = options[:site_or_vendor] if prefix.empty? lib_dir = RbConfig::CONFIG[site_or_vendor] bin_dir = RbConfig::CONFIG['bindir'] else # Apple installed RubyGems into libdir, and RubyGems <= 1.1.0 gets # confused about installation location, so switch back to # sitelibdir/vendorlibdir. if defined?(APPLE_GEM_HOME) and # just in case Apple and RubyGems don't get this patched up proper. (prefix == RbConfig::CONFIG['libdir'] or # this one is important prefix == File.join(RbConfig::CONFIG['libdir'], 'ruby')) lib_dir = RbConfig::CONFIG[site_or_vendor] bin_dir = RbConfig::CONFIG['bindir'] else lib_dir = File.join prefix, 'lib' bin_dir = File.join prefix, 'bin' end end [prepend_destdir_if_present(lib_dir), prepend_destdir_if_present(bin_dir)] end def files_in(dir) Dir.chdir dir do Dir.glob(File.join('**', '*'), File::FNM_DOTMATCH). select{|f| !File.directory?(f) } end end def remove_old_bin_files(bin_dir) old_bin_files = { 'gem_mirror' => 'gem mirror', 'gem_server' => 'gem server', 'gemlock' => 'gem lock', 'gemri' => 'ri', 'gemwhich' => 'gem which', 'index_gem_repository.rb' => 'gem generate_index', } old_bin_files.each do |old_bin_file, new_name| old_bin_path = File.join bin_dir, old_bin_file next unless File.exist? old_bin_path deprecation_message = "`#{old_bin_file}` has been deprecated. Use `#{new_name}` instead." File.open old_bin_path, 'w' do |fp| fp.write <<-EOF #!#{Gem.ruby} abort "#{deprecation_message}" EOF end next unless Gem.win_platform? File.open "#{old_bin_path}.bat", 'w' do |fp| fp.puts %(@ECHO.#{deprecation_message}) end end end def remove_old_lib_files(lib_dir) lib_dirs = { File.join(lib_dir, 'rubygems') => 'lib/rubygems' } lib_dirs[File.join(lib_dir, 'bundler')] = 'bundler/lib/bundler' lib_dirs.each do |old_lib_dir, new_lib_dir| lib_files = files_in(new_lib_dir) old_lib_files = files_in(old_lib_dir) to_remove = old_lib_files - lib_files gauntlet_rubygems = File.join(lib_dir, 'gauntlet_rubygems.rb') to_remove << gauntlet_rubygems if File.exist? gauntlet_rubygems to_remove.delete_if do |file| file.start_with? 'defaults' end remove_file_list(to_remove, old_lib_dir) end end def remove_old_man_files(old_man_dir) old_man1_dir = "#{old_man_dir}/man1" if File.exist?(old_man1_dir) man1_to_remove = Dir.chdir(old_man1_dir) { Dir["bundle*.1{,.txt,.ronn}"] } remove_file_list(man1_to_remove, old_man1_dir) end old_man5_dir = "#{old_man_dir}/man5" if File.exist?(old_man5_dir) man5_to_remove = Dir.chdir(old_man5_dir) { Dir["gemfile.5{,.txt,.ronn}"] } remove_file_list(man5_to_remove, old_man5_dir) end end def show_release_notes release_notes = File.join Dir.pwd, 'CHANGELOG.md' release_notes = if File.exist? release_notes history = File.read release_notes history.force_encoding Encoding::UTF_8 text = history.split(HISTORY_HEADER) text.shift # correct an off-by-one generated by split version_lines = history.scan(HISTORY_HEADER) versions = history.scan(VERSION_MATCHER).flatten.map do |x| Gem::Version.new(x) end history_string = "" until versions.length == 0 or versions.shift <= options[:previous_version] do history_string += version_lines.shift + text.shift end history_string else "Oh-no! Unable to find release notes!" end say release_notes end def uninstall_old_gemcutter require_relative '../uninstaller' ui = Gem::Uninstaller.new('gemcutter', :all => true, :ignore => true, :version => '< 0.4') ui.uninstall rescue Gem::InstallError end def regenerate_binstubs(bindir) require_relative "pristine_command" say "Regenerating binstubs" args = %w[--all --only-executables --silent] args << "--bindir=#{bindir}" if options[:env_shebang] args << "--env-shebang" end command = Gem::Commands::PristineCommand.new command.invoke(*args) end def regenerate_plugins(bindir) require_relative "pristine_command" say "Regenerating plugins" args = %w[--all --only-plugins --silent] args << "--bindir=#{bindir}" args << "--install-dir=#{default_dir}" command = Gem::Commands::PristineCommand.new command.invoke(*args) end private def default_dir prefix = options[:prefix] if prefix.empty? dir = Gem.default_dir else dir = prefix end prepend_destdir_if_present(dir) end def prepend_destdir_if_present(path) destdir = options[:destdir] return path if destdir.empty? File.join(options[:destdir], path.gsub(/^[a-zA-Z]:/, '')) end def install_file_list(files, dest_dir) files.each do |file| install_file file, dest_dir end end def install_file(file, dest_dir) dest_file = File.join dest_dir, file dest_dir = File.dirname dest_file unless File.directory? dest_dir mkdir_p dest_dir, :mode => 0755 end install file, dest_file, :mode => options[:data_mode] || 0644 end def remove_file_list(files, dir) Dir.chdir dir do files.each do |file| FileUtils.rm_f file warn "unable to remove old file #{file} please remove it by hand" if File.exist? file end end end def target_bin_path(bin_dir, bin_file) bin_file_formatted = if options[:format_executable] Gem.default_exec_format % bin_file else bin_file end File.join bin_dir, bin_file_formatted end def bin_file_names @bin_file_names ||= [] end end