Class: Gem::Commands::SetupCommand

Inherits:
Gem::Command show all
Defined in:
lib/rubygems/commands/setup_command.rb

Overview

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

Defined Under Namespace

Modules: MakeDirs

Constant Summary collapse

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

Instance Attribute Summary

Attributes inherited from Gem::Command

#command, #defaults, #options, #program_name, #summary

Instance Method Summary collapse

Methods inherited from Gem::Command

add_common_option, #add_extra_args, #add_option, add_specific_extra_args, #arguments, #begins?, build_args, build_args=, #check_deprecated_options, common_options, #deprecate_option, #deprecated?, extra_args, extra_args=, #get_all_gem_names, #get_all_gem_names_and_versions, #get_one_gem_name, #get_one_optional_argument, #handle_options, #handles?, #invoke, #invoke_with_build_args, #merge_options, #remove_option, #show_help, #show_lookup_failure, specific_extra_args, specific_extra_args_hash, specific_extra_args_hash=, #usage, #when_invoked

Methods included from UserInteraction

#alert, #alert_error, #alert_warning, #ask, #ask_for_password, #ask_yes_no, #choose_from_list, #say, #terminate_interaction, #verbose

Methods included from DefaultUserInteraction

ui, #ui, ui=, #ui=, use_ui, #use_ui

Methods included from Text

#clean_text, #format_text, #levenshtein_distance, #min3, #truncate_text

Constructor Details

#initialize ⇒ SetupCommand

Returns a new instance of SetupCommand.



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# File 'lib/rubygems/commands/setup_command.rb', line 14

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

Instance Method Details

#check_ruby_version ⇒ Object 



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# File 'lib/rubygems/commands/setup_command.rb', line 111

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

#defaults_str ⇒ Object

:nodoc:



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# File 'lib/rubygems/commands/setup_command.rb', line 120

def defaults_str # :nodoc:
  "--format-executable --document ri --regenerate-binstubs"
end

#description ⇒ Object

:nodoc:



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# File 'lib/rubygems/commands/setup_command.rb', line 124

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

#execute ⇒ Object 



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# File 'lib/rubygems/commands/setup_command.rb', line 149

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
  man_dir = generate_default_man_dir install_destdir

  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 if options[:regenerate_binstubs]
  regenerate_plugins 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

#files_in(dir) ⇒ Object 



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# File 'lib/rubygems/commands/setup_command.rb', line 489

def files_in(dir)
  Dir.chdir dir do
    Dir.glob(File.join('**', '*'), File::FNM_DOTMATCH).
      select{|f| !File.directory?(f) }
  end
end

#generate_default_dirs(install_destdir) ⇒ Object 



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# File 'lib/rubygems/commands/setup_command.rb', line 457

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

#generate_default_man_dir(install_destdir) ⇒ Object 



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# File 'lib/rubygems/commands/setup_command.rb', line 440

def generate_default_man_dir(install_destdir)
  prefix = options[:prefix]

  if prefix.empty?
    man_dir = RbConfig::CONFIG['mandir']
    return unless man_dir
  else
    man_dir = File.join prefix, 'man'
  end

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

  man_dir
end

#install_default_bundler_gem(bin_dir) ⇒ Object 



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# File 'lib/rubygems/commands/setup_command.rb', line 373

def install_default_bundler_gem(bin_dir)
  specs_dir = Gem.default_specifications_dir
  specs_dir = File.join(options[:destdir], specs_dir) unless Gem.win_platform?
  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)

  # 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

  require 'rubygems/installer'

  Dir.chdir("bundler") do
    built_gem = Gem::Package.build(bundler_spec)
    begin
      installer = 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, wrappers: true)
      installer.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

#install_executables(bin_dir) ⇒ Object 



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# File 'lib/rubygems/commands/setup_command.rb', line 253

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_files = Dir['*']

      bin_files -= %w[update_rubygems]

      bin_files.each do |bin_file|
        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
end

#install_lib(lib_dir) ⇒ Object 



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# File 'lib/rubygems/commands/setup_command.rb', line 318

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

#install_rdoc ⇒ Object 



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# File 'lib/rubygems/commands/setup_command.rb', line 332

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) ⇒ Object 



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# File 'lib/rubygems/commands/setup_command.rb', line 427

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

#regenerate_binstubs ⇒ Object 



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# File 'lib/rubygems/commands/setup_command.rb', line 607

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

#regenerate_plugins ⇒ Object 



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# File 'lib/rubygems/commands/setup_command.rb', line 620

def regenerate_plugins
  require "rubygems/commands/pristine_command"
  say "Regenerating plugins"

  args = %w[--all --only-plugins --silent]

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

#remove_old_bin_files(bin_dir) ⇒ Object 



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# File 'lib/rubygems/commands/setup_command.rb', line 496

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) ⇒ Object 



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# File 'lib/rubygems/commands/setup_command.rb', line 528

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

#remove_old_man_files(old_man_dir) ⇒ Object 



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# File 'lib/rubygems/commands/setup_command.rb', line 549

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

#shebang ⇒ Object 



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# File 'lib/rubygems/commands/setup_command.rb', line 308

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 ⇒ Object 



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# File 'lib/rubygems/commands/setup_command.rb', line 567

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

#uninstall_old_gemcutter ⇒ Object 



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# File 'lib/rubygems/commands/setup_command.rb', line 598

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