# class Gem::Commands::SetupCommand

Installs RubyGems itself. This command is ordinarily only available from a RubyGems checkout or tarball.

### Constants

ENV_PATHS
HISTORY_HEADER
VERSION_MATCHER

### Public Class Methods

new() click to toggle source
Calls superclass method `Gem::Command::new`

    # File lib/rubygems/commands/setup_command.rb, line 14
    def initialize
      require 'tmpdir'

      super 'setup', 'Install RubyGems',
            :format_executable => true, :document => %w[ri],
            :site_or_vendor => 'sitelibdir',
            :destdir => '', :prefix => '', :previous_version => '',
            :regenerate_binstubs => 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('-E', '--[no-]env-shebang',
                 'Rewrite executables with a shebang',
                 'of /usr/bin/env') do |value, options|
        options[:env_shebang] = value
      end

      @verbose = nil
    end

### Public Instance Methods

check_ruby_version() click to toggle source

    # File lib/rubygems/commands/setup_command.rb, line 99
    def check_ruby_version
      required_version = Gem::Requirement.new '>= 1.8.7'

      unless required_version.satisfied_by? Gem.ruby_version
        alert_error "Expected Ruby version #{required_version}, is #{Gem.ruby_version}"
        terminate_interaction 1
      end
    end

execute() click to toggle source

    # File lib/rubygems/commands/setup_command.rb, line 137
    def execute
      @verbose = Gem.configuration.really_verbose

      install_destdir = options[:destdir]

      unless install_destdir.empty?
        ENV['GEM_HOME'] ||= File.join(install_destdir,
                                      Gem.default_dir.gsub(/^[a-zA-Z]:/, ''))
      end

      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 install_destdir

      install_lib lib_dir

      install_executables bin_dir

      remove_old_bin_files bin_dir

      remove_old_lib_files lib_dir

      install_default_bundler_gem

      if mode = options[:dir_mode]
        @mkdirs.uniq!
        File.chmod(mode, @mkdirs)
      end

      say "RubyGems #{Gem::VERSION} installed"

      regenerate_binstubs if options[:regenerate_binstubs]

      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

generate_default_dirs(install_destdir) click to toggle source

    # File lib/rubygems/commands/setup_command.rb, line 455
    def generate_default_dirs(install_destdir)
      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

      unless install_destdir.empty?
        lib_dir = File.join install_destdir, lib_dir.gsub(/^[a-zA-Z]:/, '')
        bin_dir = File.join install_destdir, bin_dir.gsub(/^[a-zA-Z]:/, '')
      end

      [lib_dir, bin_dir]
    end

install_default_bundler_gem() click to toggle source

    # File lib/rubygems/commands/setup_command.rb, line 385
    def install_default_bundler_gem
      return unless Gem::USE_BUNDLER_FOR_GEMDEPS

      specs_dir = Gem::Specification.default_specifications_dir
      specs_dir = File.join(options[:destdir], specs_dir) unless Gem.win_platform?
      mkdir_p specs_dir, :mode => 0755

      # Workaround for non-git environment.
      gemspec = File.open('bundler/bundler.gemspec', 'rb'){|f| f.read.gsub(/`git ls-files -z`/, "''") }
      File.open('bundler/bundler.gemspec', 'w'){|f| f.write gemspec }

      bundler_spec = Gem::Specification.load("bundler/bundler.gemspec")
      bundler_spec.files = Dir.chdir("bundler") { Dir["{*.md,{lib,exe,man}/**/*}"] }
      bundler_spec.executables -= %w[bundler bundle_ruby]

      # 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)

      # Remove gemspec that was same version of vendored bundler.
      normal_gemspec = File.join(Gem.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
      bundler_bin_dir = File.join(options[:destdir], bundler_bin_dir) unless Gem.win_platform?
      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

      if Gem.win_platform?
        require 'rubygems/installer'

        installer = Gem::Installer.for_spec bundler_spec
        bundler_spec.executables.each do |e|
          installer.generate_windows_script e, bundler_spec.bin_dir
        end
      end

      say "Bundler #{bundler_spec.version} installed"
    end

install_executables(bin_dir) click to toggle source

    # File lib/rubygems/commands/setup_command.rb, line 237
      def install_executables(bin_dir)
        @bin_file_names = []

        prog_mode = options[:prog_mode] || 0755

        executables = { 'gem' => 'bin' }
        executables['bundler'] = 'bundler/exe' if Gem::USE_BUNDLER_FOR_GEMDEPS
        executables.each do |tool, path|
          say "Installing #{tool} executable" if @verbose

          Dir.chdir path do
            bin_files = Dir['*']

            bin_files -= %w[update_rubygems bundler bundle_ruby]

            bin_files.each do |bin_file|
              bin_file_formatted = if options[:format_executable]
                                     Gem.default_exec_format % bin_file
                                   else
                                     bin_file
                                   end

              dest_file = File.join bin_dir, bin_file_formatted
              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
      end

install_file(file, dest_dir) click to toggle source

    # File lib/rubygems/commands/setup_command.rb, line 311
    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

install_lib(lib_dir) click to toggle source

    # File lib/rubygems/commands/setup_command.rb, line 321
    def install_lib(lib_dir)
      libs = { 'RubyGems' => 'lib' }
      libs['Bundler'] = 'bundler/lib' if Gem::USE_BUNDLER_FOR_GEMDEPS
      libs.each do |tool, path|
        say "Installing #{tool}" if @verbose

        lib_files = rb_files_in path
        lib_files.concat(template_files) if tool == 'Bundler'

        pem_files = pem_files_in path

        Dir.chdir path do
          lib_files.each do |lib_file|
            install_file lib_file, lib_dir
          end

          pem_files.each do |pem_file|
            install_file pem_file, lib_dir
          end
        end
      end
    end

install_rdoc() click to toggle source

    # File lib/rubygems/commands/setup_command.rb, line 344
    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 'rubygems/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

make_destination_dirs(install_destdir) click to toggle source

    # File lib/rubygems/commands/setup_command.rb, line 442
    def make_destination_dirs(install_destdir)
      lib_dir, bin_dir = Gem.default_rubygems_dirs

      unless lib_dir
        lib_dir, bin_dir = generate_default_dirs(install_destdir)
      end

      mkdir_p lib_dir, :mode => 0755
      mkdir_p bin_dir, :mode => 0755

      return lib_dir, bin_dir
    end

pem_files_in(dir) click to toggle source

    # File lib/rubygems/commands/setup_command.rb, line 487
    def pem_files_in(dir)
      Dir.chdir dir do
        Dir[File.join('**', '*pem')]
      end
    end

rb_files_in(dir) click to toggle source

    # File lib/rubygems/commands/setup_command.rb, line 493
    def rb_files_in(dir)
      Dir.chdir dir do
        Dir[File.join('**', '*rb')]
      end
    end

regenerate_binstubs() click to toggle source

    # File lib/rubygems/commands/setup_command.rb, line 616
    def regenerate_binstubs
      require "rubygems/commands/pristine_command"
      say "Regenerating binstubs"

      args = %w[--all --only-executables --silent]
      if options[:env_shebang]
        args << "--env-shebang"
      end

      command = Gem::Commands::PristineCommand.new
      command.invoke(*args)
    end

remove_old_bin_files(bin_dir) click to toggle source

    # File lib/rubygems/commands/setup_command.rb, line 515
      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

remove_old_lib_files(lib_dir) click to toggle source

    # File lib/rubygems/commands/setup_command.rb, line 547
    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' if Gem::USE_BUNDLER_FOR_GEMDEPS
      lib_dirs.each do |old_lib_dir, new_lib_dir|
        lib_files = rb_files_in(new_lib_dir)
        lib_files.concat(template_files_in(new_lib_dir)) if new_lib_dir =~ /bundler/

        old_lib_files = rb_files_in(old_lib_dir)
        old_lib_files.concat(template_files_in(old_lib_dir)) if old_lib_dir =~ /bundler/

        to_remove = old_lib_files - lib_files

        to_remove.delete_if do |file|
          file.start_with? 'defaults'
        end

        Dir.chdir old_lib_dir do
          to_remove.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
    end

shebang() click to toggle source

    # File lib/rubygems/commands/setup_command.rb, line 301
    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

show_release_notes() click to toggle source

    # File lib/rubygems/commands/setup_command.rb, line 574
      def show_release_notes
        release_notes = File.join Dir.pwd, 'History.txt'

        release_notes =
          if File.exist? release_notes
            history = File.read release_notes

            history.force_encoding Encoding::UTF_8

            history = history.sub(/^# coding:.*?(?=^=)/m, '')

            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 'rubygems/uninstaller'

        ui = Gem::Uninstaller.new('gemcutter', :all => true, :ignore => true,
                                  :version => '< 0.4')
        ui.uninstall
      rescue Gem::InstallError
      end

      def regenerate_binstubs
        require "rubygems/commands/pristine_command"
        say "Regenerating binstubs"

        args = %w[--all --only-executables --silent]
        if options[:env_shebang]
          args << "--env-shebang"
        end

        command = Gem::Commands::PristineCommand.new
        command.invoke(*args)
      end

    end

template_files() click to toggle source

for installation of bundler as default gems

    # File lib/rubygems/commands/setup_command.rb, line 500
    def template_files
      Dir.chdir "bundler/lib" do
        (Dir[File.join('bundler', 'templates', '**', '{*,.*}')]).
          select{|f| !File.directory?(f)}
      end
    end

template_files_in(dir) click to toggle source

for cleanup old bundler files

    # File lib/rubygems/commands/setup_command.rb, line 508
    def template_files_in(dir)
      Dir.chdir dir do
        (Dir[File.join('templates', '**', '{*,.*}')]).
          select{|f| !File.directory?(f)}
      end
    end

uninstall_old_gemcutter() click to toggle source

    # File lib/rubygems/commands/setup_command.rb, line 607
    def uninstall_old_gemcutter
      require 'rubygems/uninstaller'

      ui = Gem::Uninstaller.new('gemcutter', :all => true, :ignore => true,
                                :version => '< 0.4')
      ui.uninstall
    rescue Gem::InstallError
    end