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# 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
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"
require "tmpdir"
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) &&
(!File.exist?(rubygems_doc_dir) ||
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 "../../..", __dir__
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)
current_default_spec = Gem::Specification.default_stubs.find {|s| s.name == "bundler" }
specs_dir = if current_default_spec && default_dir == Gem.default_dir
Gem::Specification.remove_spec current_default_spec
loaded_from = current_default_spec.loaded_from
File.delete(loaded_from)
File.dirname(loaded_from)
else
target_specs_dir = File.join(default_dir, "specifications", "default")
mkdir_p target_specs_dir, :mode => 0755
target_specs_dir
end
bundler_spec = Dir.chdir("bundler") { Gem::Specification.load("bundler.gemspec") }
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(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
lib_dir = File.join prefix, "lib"
bin_dir = File.join prefix, "bin"
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 ||
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