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ruby--ruby/tool/rbinstall.rb
zzak 2dd66e0d84 Fix typo for LoadError constant
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49017 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-12-25 17:15:39 +00:00

763 lines
21 KiB
Ruby
Executable file

#!./miniruby
begin
load "./rbconfig.rb"
rescue LoadError
CONFIG = Hash.new {""}
else
include RbConfig
$".unshift File.expand_path("./rbconfig.rb")
end
srcdir = File.expand_path('../..', __FILE__)
unless defined?(CROSS_COMPILING) and CROSS_COMPILING
$:.replace([srcdir+"/lib", Dir.pwd])
end
require 'fileutils'
require 'shellwords'
require 'optparse'
require 'optparse/shellwords'
require 'ostruct'
require 'rubygems'
STDOUT.sync = true
File.umask(0)
def parse_args(argv = ARGV)
$mantype = 'doc'
$destdir = nil
$extout = nil
$make = 'make'
$mflags = []
$install = []
$installed_list = nil
$dryrun = false
$rdocdir = nil
$data_mode = 0644
$prog_mode = 0755
$dir_mode = nil
$script_mode = nil
$strip = false
$cmdtype = (if File::ALT_SEPARATOR == '\\'
File.exist?("rubystub.exe") ? 'exe' : 'bat'
end)
mflags = []
opt = OptionParser.new
opt.on('-n', '--dry-run') {$dryrun = true}
opt.on('--dest-dir=DIR') {|dir| $destdir = dir}
opt.on('--extout=DIR') {|dir| $extout = (dir unless dir.empty?)}
opt.on('--make=COMMAND') {|make| $make = make}
opt.on('--mantype=MAN') {|man| $mantype = man}
opt.on('--make-flags=FLAGS', '--mflags', Shellwords) do |v|
if arg = v.first
arg.insert(0, '-') if /\A[^-][^=]*\Z/ =~ arg
end
$mflags.concat(v)
end
opt.on('-i', '--install=TYPE', $install_procs.keys) do |ins|
$install << ins
end
opt.on('--data-mode=OCTAL-MODE', OptionParser::OctalInteger) do |mode|
$data_mode = mode
end
opt.on('--prog-mode=OCTAL-MODE', OptionParser::OctalInteger) do |mode|
$prog_mode = mode
end
opt.on('--dir-mode=OCTAL-MODE', OptionParser::OctalInteger) do |mode|
$dir_mode = mode
end
opt.on('--script-mode=OCTAL-MODE', OptionParser::OctalInteger) do |mode|
$script_mode = mode
end
opt.on('--installed-list [FILENAME]') {|name| $installed_list = name}
opt.on('--rdoc-output [DIR]') {|dir| $rdocdir = dir}
opt.on('--cmd-type=TYPE', %w[bat cmd plain]) {|cmd| $cmdtype = (cmd unless cmd == 'plain')}
opt.on('--[no-]strip') {|strip| $strip = strip}
opt.order!(argv) do |v|
case v
when /\AINSTALL[-_]([-\w]+)=(.*)/
argv.unshift("--#{$1.tr('_', '-')}=#{$2}")
when /\A\w[-\w+]*=\z/
mflags << v
when /\A\w[-\w+]*\z/
$install << v.intern
else
raise OptionParser::InvalidArgument, v
end
end rescue abort "#{$!.message}\n#{opt.help}"
unless defined?(RbConfig)
puts opt.help
exit
end
$make, *rest = Shellwords.shellwords($make)
$mflags.unshift(*rest) unless rest.empty?
$mflags.unshift(*mflags)
def $mflags.set?(flag)
grep(/\A-(?!-).*#{flag.chr}/i) { return true }
false
end
def $mflags.defined?(var)
grep(/\A#{var}=(.*)/) {return block_given? ? yield($1) : $1}
false
end
if $mflags.set?(?n)
$dryrun = true
else
$mflags << '-n' if $dryrun
end
$destdir ||= $mflags.defined?("DESTDIR")
if $extout ||= $mflags.defined?("EXTOUT")
RbConfig.expand($extout)
end
$continue = $mflags.set?(?k)
if $installed_list ||= $mflags.defined?('INSTALLED_LIST')
RbConfig.expand($installed_list, RbConfig::CONFIG)
$installed_list = open($installed_list, "ab")
$installed_list.sync = true
end
$rdocdir ||= $mflags.defined?('RDOCOUT')
$dir_mode ||= $prog_mode | 0700
$script_mode ||= $prog_mode
end
$install_procs = Hash.new {[]}
def install?(*types, &block)
$install_procs[:all] <<= block
types.each do |type|
$install_procs[type] <<= block
end
end
def strip_file(files)
if !defined?($strip_command) and (cmd = CONFIG["STRIP"])
case cmd
when "", "true", ":" then return
else $strip_command = Shellwords.shellwords(cmd)
end
elsif !$strip_command
return
end
system(*($strip_command + [files].flatten))
end
def install(src, dest, options = {})
options = options.clone
strip = options.delete(:strip)
options[:preserve] = true
d = with_destdir(dest)
super(src, d, options)
srcs = Array(src)
if strip
d = srcs.map {|src| File.join(d, File.basename(src))} if $made_dirs[dest]
strip_file(d)
end
if $installed_list
dest = srcs.map {|src| File.join(dest, File.basename(src))} if $made_dirs[dest]
$installed_list.puts dest
end
end
def ln_sf(src, dest)
super(src, with_destdir(dest))
$installed_list.puts dest if $installed_list
end
$made_dirs = {}
def makedirs(dirs)
dirs = fu_list(dirs)
dirs.collect! do |dir|
realdir = with_destdir(dir)
realdir unless $made_dirs.fetch(dir) do
$made_dirs[dir] = true
$installed_list.puts(File.join(dir, "")) if $installed_list
File.directory?(realdir)
end
end.compact!
super(dirs, :mode => $dir_mode) unless dirs.empty?
end
FalseProc = proc {false}
def path_matcher(pat)
if pat and !pat.empty?
proc {|f| pat.any? {|n| File.fnmatch?(n, f)}}
else
FalseProc
end
end
def install_recursive(srcdir, dest, options = {})
opts = options.clone
noinst = opts.delete(:no_install)
glob = opts.delete(:glob) || "*"
maxdepth = opts.delete(:maxdepth)
subpath = (srcdir.size+1)..-1
prune = []
skip = []
if noinst
if Array === noinst
prune = noinst.grep(/#{File::SEPARATOR}/o).map!{|f| f.chomp(File::SEPARATOR)}
skip = noinst.grep(/\A[^#{File::SEPARATOR}]*\z/o)
else
if noinst.index(File::SEPARATOR)
prune = [noinst]
else
skip = [noinst]
end
end
end
skip |= %w"#*# *~ *.old *.bak *.orig *.rej *.diff *.patch *.core"
prune = path_matcher(prune)
skip = path_matcher(skip)
File.directory?(srcdir) or return rescue return
paths = [[srcdir, dest, 0]]
found = []
while file = paths.shift
found << file
file, d, dir = *file
if dir
depth = dir + 1
next if maxdepth and maxdepth < depth
files = []
Dir.foreach(file) do |f|
src = File.join(file, f)
d = File.join(dest, dir = src[subpath])
stat = File.lstat(src) rescue next
if stat.directory?
files << [src, d, depth] if maxdepth != depth and /\A\./ !~ f and !prune[dir]
elsif stat.symlink?
# skip
else
files << [src, d, false] if File.fnmatch?(glob, f) and !skip[f]
end
end
paths.insert(0, *files)
end
end
for src, d, dir in found
if dir
makedirs(d)
else
makedirs(d[/.*(?=\/)/m])
if block_given?
yield src, d, opts
else
install src, d, opts
end
end
end
end
def open_for_install(path, mode)
data = open(realpath = with_destdir(path), "rb") {|f| f.read} rescue nil
newdata = yield
unless $dryrun
unless newdata == data
open(realpath, "wb", mode) {|f| f.write newdata}
end
File.chmod(mode, realpath)
end
$installed_list.puts path if $installed_list
end
def with_destdir(dir)
return dir if !$destdir or $destdir.empty?
dir = dir.sub(/\A\w:/, '') if File::PATH_SEPARATOR == ';'
$destdir + dir
end
def prepare(mesg, basedir, subdirs=nil)
return unless basedir
case
when !subdirs
dirs = basedir
when subdirs.size == 0
subdirs = nil
when subdirs.size == 1
dirs = [basedir = File.join(basedir, subdirs)]
subdirs = nil
else
dirs = [basedir, *subdirs.collect {|dir| File.join(basedir, dir)}]
end
printf("installing %-18s %s%s\n", "#{mesg}:", basedir,
(subdirs ? " (#{subdirs.join(', ')})" : ""))
makedirs(dirs)
end
def CONFIG.[](name, mandatory = false)
value = super(name)
if mandatory
raise "CONFIG['#{name}'] must be set" if !value or value.empty?
end
value
end
exeext = CONFIG["EXEEXT"]
ruby_install_name = CONFIG["ruby_install_name", true]
rubyw_install_name = CONFIG["rubyw_install_name"]
goruby_install_name = "go" + ruby_install_name
bindir = CONFIG["bindir", true]
libdir = CONFIG[CONFIG.fetch("libdirname", "libdir"), true]
rubyhdrdir = CONFIG["rubyhdrdir", true]
archhdrdir = CONFIG["rubyarchhdrdir"] || (rubyhdrdir + "/" + CONFIG['arch'])
rubylibdir = CONFIG["rubylibdir", true]
archlibdir = CONFIG["rubyarchdir", true]
sitelibdir = CONFIG["sitelibdir"]
sitearchlibdir = CONFIG["sitearchdir"]
vendorlibdir = CONFIG["vendorlibdir"]
vendorarchlibdir = CONFIG["vendorarchdir"]
mandir = CONFIG["mandir", true]
docdir = CONFIG["docdir", true]
configure_args = Shellwords.shellwords(CONFIG["configure_args"])
enable_shared = CONFIG["ENABLE_SHARED"] == 'yes'
dll = CONFIG["LIBRUBY_SO", enable_shared]
lib = CONFIG["LIBRUBY", true]
arc = CONFIG["LIBRUBY_A", true]
major = CONFIG["MAJOR", true]
minor = CONFIG["MINOR", true]
load_relative = configure_args.include?("--enable-load-relative")
install?(:local, :arch, :bin, :'bin-arch') do
prepare "binary commands", bindir
install ruby_install_name+exeext, bindir, :mode => $prog_mode, :strip => $strip
if rubyw_install_name and !rubyw_install_name.empty?
install rubyw_install_name+exeext, bindir, :mode => $prog_mode, :strip => $strip
end
if File.exist? goruby_install_name+exeext
install goruby_install_name+exeext, bindir, :mode => $prog_mode, :strip => $strip
end
if enable_shared and dll != lib
install dll, bindir, :mode => $prog_mode, :strip => $strip
end
end
install?(:local, :arch, :lib) do
prepare "base libraries", libdir
install lib, libdir, :mode => $prog_mode, :strip => $strip unless lib == arc
install arc, libdir, :mode => $data_mode
if dll == lib and dll != arc
for link in CONFIG["LIBRUBY_ALIASES"].split
ln_sf(dll, File.join(libdir, link))
end
end
prepare "arch files", archlibdir
install "rbconfig.rb", archlibdir, :mode => $data_mode
if CONFIG["ARCHFILE"]
for file in CONFIG["ARCHFILE"].split
install file, archlibdir, :mode => $data_mode
end
end
end
install?(:local, :arch, :data) do
pc = CONFIG["ruby_pc"]
if pc and File.file?(pc) and File.size?(pc)
prepare "pkgconfig data", pkgconfigdir = File.join(libdir, "pkgconfig")
install pc, pkgconfigdir, :mode => $data_mode
end
end
install?(:ext, :arch, :'ext-arch') do
prepare "extension objects", archlibdir
noinst = %w[-* -*/] | (CONFIG["no_install_files"] || "").split
install_recursive("#{$extout}/#{CONFIG['arch']}", archlibdir, :no_install => noinst, :mode => $prog_mode, :strip => $strip)
prepare "extension objects", sitearchlibdir
prepare "extension objects", vendorarchlibdir
end
install?(:ext, :arch, :hdr, :'arch-hdr') do
prepare "extension headers", archhdrdir
install_recursive("#{$extout}/include/#{CONFIG['arch']}", archhdrdir, :glob => "*.h", :mode => $data_mode)
end
install?(:ext, :comm, :'ext-comm') do
prepare "extension scripts", rubylibdir
install_recursive("#{$extout}/common", rubylibdir, :mode => $data_mode)
prepare "extension scripts", sitelibdir
prepare "extension scripts", vendorlibdir
end
install?(:ext, :comm, :hdr, :'comm-hdr') do
hdrdir = rubyhdrdir + "/ruby"
prepare "extension headers", hdrdir
install_recursive("#{$extout}/include/ruby", hdrdir, :glob => "*.h", :mode => $data_mode)
end
install?(:doc, :rdoc) do
if $rdocdir
ridatadir = File.join(CONFIG['ridir'], CONFIG['ruby_version'], "system")
prepare "rdoc", ridatadir
install_recursive($rdocdir, ridatadir, :mode => $data_mode)
end
end
install?(:doc, :capi) do
prepare "capi-docs", docdir
install_recursive "doc/capi", docdir+"/capi", :mode => $data_mode
end
if load_relative
PROLOG_SCRIPT = <<EOS
#!/bin/sh\n# -*- ruby -*-
bindir=`#{CONFIG["CHDIR"]} "${0%/*}" 2>/dev/null; pwd`
EOS
if CONFIG["LIBRUBY_RELATIVE"] != 'yes' and libpathenv = CONFIG["LIBPATHENV"]
pathsep = File::PATH_SEPARATOR
PROLOG_SCRIPT << <<EOS
prefix="${bindir%/bin}"
export #{libpathenv}="$prefix/lib${#{libpathenv}#{pathsep}+#{pathsep}$#{libpathenv}}"
EOS
end
PROLOG_SCRIPT << %Q[exec "$bindir/#{ruby_install_name}" -x "$0" "$@"\n]
else
PROLOG_SCRIPT = nil
end
install?(:local, :comm, :bin, :'bin-comm') do
prepare "command scripts", bindir
ruby_shebang = File.join(bindir, ruby_install_name)
if File::ALT_SEPARATOR
ruby_bin = ruby_shebang.tr(File::SEPARATOR, File::ALT_SEPARATOR)
if $cmdtype == 'exe'
stub = File.open("rubystub.exe", "rb") {|f| f.read} << "\n" rescue nil
end
end
if trans = CONFIG["program_transform_name"]
exp = []
trans.gsub!(/\$\$/, '$')
trans.scan(%r[\G[\s;]*(/(?:\\.|[^/])*/)?([sy])(\\?\W)((?:(?!\3)(?:\\.|.))*)\3((?:(?!\3)(?:\\.|.))*)\3([gi]*)]) do
|addr, cmd, sep, pat, rep, opt|
addr &&= Regexp.new(addr[/\A\/(.*)\/\z/, 1])
case cmd
when 's'
next if pat == '^' and rep.empty?
exp << [addr, (opt.include?('g') ? :gsub! : :sub!),
Regexp.new(pat, opt.include?('i')), rep.gsub(/&/){'\&'}]
when 'y'
exp << [addr, :tr!, Regexp.quote(pat), rep]
end
end
trans = proc do |base|
exp.each {|addr, opt, pat, rep| base.__send__(opt, pat, rep) if !addr or addr =~ base}
base
end
elsif /ruby/ =~ ruby_install_name
trans = proc {|base| ruby_install_name.sub(/ruby/, base)}
else
trans = proc {|base| base}
end
install_recursive(File.join(srcdir, "bin"), bindir, :maxdepth => 1) do |src, cmd|
cmd = cmd.sub(/[^\/]*\z/m) {|n| RbConfig.expand(trans[n])}
shebang = ''
body = ''
open(src, "rb") do |f|
shebang = f.gets
body = f.read
end
shebang or raise "empty file - #{src}"
if PROLOG_SCRIPT
shebang.sub!(/\A(\#!.*?ruby\b)?/) {PROLOG_SCRIPT + ($1 || "#!ruby\n")}
else
shebang.sub!(/\A\#!.*?ruby\b/) {"#!" + ruby_shebang}
end
shebang.sub!(/\r$/, '')
body.gsub!(/\r$/, '')
cmd << ".#{$cmdtype}" if $cmdtype
open_for_install(cmd, $script_mode) do
case $cmdtype
when "exe"
stub + shebang + body
when "bat"
[<<-"EOH".gsub(/^\s+/, ''), shebang, body, "__END__\n:endofruby\n"].join.gsub(/$/, "\r")
@echo off
@if not "%~d0" == "~d0" goto WinNT
#{ruby_bin} -x "#{cmd}" %1 %2 %3 %4 %5 %6 %7 %8 %9
@goto endofruby
:WinNT
"%~dp0#{ruby_install_name}" -x "%~f0" %*
@goto endofruby
EOH
when "cmd"
<<"/EOH" << shebang << body
@"%~dp0#{ruby_install_name}" -x "%~f0" %*
@exit /b %ERRORLEVEL%
/EOH
else
shebang + body
end
end
end
end
install?(:local, :comm, :lib) do
prepare "library scripts", rubylibdir
noinst = %w[README* *.txt *.rdoc *.gemspec]
install_recursive(File.join(srcdir, "lib"), rubylibdir, :no_install => noinst, :mode => $data_mode)
end
install?(:local, :comm, :hdr, :'comm-hdr') do
prepare "common headers", rubyhdrdir
noinst = []
unless RUBY_PLATFORM =~ /mswin|mingw|bccwin/
noinst << "win32.h"
end
noinst = nil if noinst.empty?
install_recursive(File.join(srcdir, "include"), rubyhdrdir, :no_install => noinst, :glob => "*.h", :mode => $data_mode)
end
install?(:local, :comm, :man) do
mdocs = Dir["#{srcdir}/man/*.[1-9]"]
prepare "manpages", mandir, ([] | mdocs.collect {|mdoc| mdoc[/\d+$/]}).sort.collect {|sec| "man#{sec}"}
mandir = File.join(mandir, "man")
has_goruby = File.exist?(goruby_install_name+exeext)
require File.join(srcdir, "tool/mdoc2man.rb") if $mantype != "doc"
mdocs.each do |mdoc|
next unless File.file?(mdoc) and open(mdoc){|fh| fh.read(1) == '.'}
base = File.basename(mdoc)
if base == "goruby.1"
next unless has_goruby
end
destdir = mandir + (section = mdoc[/\d+$/])
destname = ruby_install_name.sub(/ruby/, base.chomp(".#{section}"))
destfile = File.join(destdir, "#{destname}.#{section}")
if $mantype == "doc"
install mdoc, destfile, :mode => $data_mode
else
class << (w = [])
alias print push
end
open(mdoc) {|r| Mdoc2Man.mdoc2man(r, w)}
open_for_install(destfile, $data_mode) {w.join("")}
end
end
end
module RbInstall
module Specs
class FileCollector
def initialize(base_dir)
@base_dir = base_dir
end
def collect
(ruby_libraries + built_libraries).sort
end
private
def type
/\/(ext|lib)?\/.*?\z/ =~ @base_dir
$1
end
def ruby_libraries
case type
when "ext"
prefix = "#{$extout}/common/"
base = "#{prefix}#{relative_base}"
when "lib"
base = @base_dir
prefix = base.sub(/lib\/.*?\z/, "") + "lib/"
end
Dir.glob("#{base}{.rb,/**/*.rb}").collect do |ruby_source|
remove_prefix(prefix, ruby_source)
end
end
def built_libraries
case type
when "ext"
prefix = "#{$extout}/#{CONFIG['arch']}/"
base = "#{prefix}#{relative_base}"
Dir.glob("#{base}{.so,/**/*.so}").collect do |built_library|
remove_prefix(prefix, built_library)
end
when "lib"
[]
end
end
def relative_base
/\/#{Regexp.escape(type)}\/(.*?)\z/ =~ @base_dir
$1
end
def remove_prefix(prefix, string)
string.sub(/\A#{Regexp.escape(prefix)}/, "")
end
end
class Reader < Struct.new(:src)
def gemspec
@gemspec ||= begin
spec = Gem::Specification.load(src) || raise("invalid spec in #{src}")
file_collector = FileCollector.new(File.dirname(src))
spec.files = file_collector.collect
spec
end
end
def spec_source
@gemspec.to_ruby
end
end
class Generator < Struct.new(:name, :base_dir, :src, :execs)
def gemspec
@gemspec ||= eval spec_source
end
def spec_source
<<-GEMSPEC
Gem::Specification.new do |s|
s.name = #{name.dump}
s.version = #{version.dump}
s.summary = "This #{name} is bundled with Ruby"
s.executables = #{execs.inspect}
s.files = #{files.inspect}
end
GEMSPEC
end
private
def version
version = open(src) { |f|
f.find { |s| /^\s*\w*VERSION\s*=(?!=)/ =~ s }
} or return
version.split(%r"=\s*", 2)[1].strip[/\A([\'\"])(.*?)\1/, 2]
end
def files
file_collector = FileCollector.new(base_dir)
file_collector.collect
end
end
end
end
# :startdoc:
install?(:ext, :comm, :gem) do
$:.unshift(File.join(srcdir, "lib"))
require("rubygems.rb")
gem_dir = Gem.default_dir
directories = Gem.ensure_gem_subdirectories(gem_dir, :mode => $dir_mode)
prepare "default gems", gem_dir, directories
spec_dir = File.join(gem_dir, directories.grep(/^spec/)[0])
default_spec_dir = "#{spec_dir}/default"
makedirs(default_spec_dir)
gems = {}
File.foreach(File.join(srcdir, "defs/default_gems")) do |line|
line.chomp!
line.sub!(/\s*#.*/, '')
next if line.empty?
words = []
line.scan(/\G\s*([^\[\]\s]+|\[([^\[\]]*)\])/) do
words << ($2 ? $2.split : $1)
end
name, base_dir, src, execs = *words
next unless name and base_dir and src
src = File.join(srcdir, src)
base_dir = File.join(srcdir, base_dir)
specgen = RbInstall::Specs::Generator.new(name, base_dir, src, execs || [])
gems[name] ||= specgen
end
Dir.glob(srcdir+"/{lib,ext}/**/*.gemspec").each do |src|
specgen = RbInstall::Specs::Reader.new(src)
gems[specgen.gemspec.name] ||= specgen
end
gems.sort.each do |name, specgen|
gemspec = specgen.gemspec
base_dir = specgen.src.sub(/\A#{Regexp.escape(srcdir)}\//, "")
full_name = "#{gemspec.name}-#{gemspec.version}"
puts "#{" "*30}#{gemspec.name} #{gemspec.version}"
gemspec_path = File.join(default_spec_dir, "#{full_name}.gemspec")
open_for_install(gemspec_path, $data_mode) do
specgen.spec_source
end
unless gemspec.executables.empty? then
bin_dir = File.join(gem_dir, 'gems', full_name, 'bin')
makedirs(bin_dir)
execs = gemspec.executables.map {|exec| File.join(srcdir, 'bin', exec)}
install(execs, bin_dir, :mode => $prog_mode)
end
end
end
install?(:ext, :comm, :gem) do
begin
require "zlib"
rescue LoadError
end
if defined?(Zlib)
require 'pathname'
gem_dir = Gem.default_dir
directories = Gem.ensure_gem_subdirectories(gem_dir, :mode => $dir_mode)
prepare "bundle gems", gem_dir, directories
Dir.glob(srcdir+'/gems/*.gem').each do |gem|
Gem.install gem, Gem::Requirement.default, :install_dir => with_destdir(Gem.dir), :domain => :local, :ignore_dependencies => true
gemname = Pathname(gem).basename
puts "#{" "*30}#{gemname}"
end
# fix directory permissions
# TODO: Gem.install should accept :dir_mode option or something
File.chmod($dir_mode, *Dir.glob(with_destdir(Gem.dir)+"/**/"))
# fix .gemspec permissions
File.chmod($data_mode, *Dir.glob(with_destdir(Gem.dir)+"/specifications/*.gemspec"))
else
puts "skip installing bundle gems because of lacking zlib"
end
end
parse_args()
include FileUtils
include FileUtils::NoWrite if $dryrun
@fileutils_output = STDOUT
@fileutils_label = ''
all = $install.delete(:all)
$install << :local << :ext if $install.empty?
installs = $install.map do |inst|
if !(procs = $install_procs[inst]) || procs.empty?
next warn("unknown install target - #{inst}")
end
procs
end
installs.flatten!
installs.uniq!
installs |= $install_procs[:all] if all
installs.each do |block|
dir = Dir.pwd
begin
block.call
ensure
Dir.chdir(dir)
end
end
# vi:set sw=2: