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PATH: opt / alt / ruby26 / lib64 / ruby / 2.6.0 / rubygems

# frozen_string_literal: true
##
# This module contains various utility methods as module methods.

module Gem::Util

@silent_mutex = nil

##
  # Zlib::GzipReader wrapper that unzips +data+.

def self.gunzip(data)
    require 'zlib'
    require 'stringio'
    data = StringIO.new(data, 'r')

unzipped = Zlib::GzipReader.new(data).read
    unzipped.force_encoding Encoding::BINARY
    unzipped
  end

##
  # Zlib::GzipWriter wrapper that zips +data+.

def self.gzip(data)
    require 'zlib'
    require 'stringio'
    zipped = StringIO.new(String.new, 'w')
    zipped.set_encoding Encoding::BINARY

Zlib::GzipWriter.wrap zipped do |io| io.write data end

zipped.string
  end

##
  # A Zlib::Inflate#inflate wrapper

def self.inflate(data)
    require 'zlib'
    Zlib::Inflate.inflate data
  end

##
  # This calls IO.popen where it accepts an array for a +command+ (Ruby 1.9+)
  # and implements an IO.popen-like behavior where it does not accept an array
  # for a command.

def self.popen(*command)
    IO.popen command, &:read
  rescue TypeError # ruby 1.8 only supports string command
    r, w = IO.pipe

pid = fork do
      STDIN.close
      STDOUT.reopen w

exec(*command)
    end

w.close

begin
      return r.read
    ensure
      Process.wait pid
    end
  end

##
  # Invokes system, but silences all output.

def self.silent_system(*command)
    opt = {:out => IO::NULL, :err => [:child, :out]}
    if Hash === command.last
      opt.update(command.last)
      cmds = command[0...-1]
    else
      cmds = command.dup
    end
    return system(*(cmds << opt))
  rescue TypeError
    @silent_mutex ||= Mutex.new

@silent_mutex.synchronize do
      begin
        stdout = STDOUT.dup
        stderr = STDERR.dup

STDOUT.reopen IO::NULL, 'w'
        STDERR.reopen IO::NULL, 'w'

return system(*command)
      ensure
        STDOUT.reopen stdout
        STDERR.reopen stderr
        stdout.close
        stderr.close
      end
    end
  end

##
  # Enumerates the parents of +directory+.

def self.traverse_parents(directory, &block)
    return enum_for __method__, directory unless block_given?

here = File.expand_path directory
    loop do
      Dir.chdir here, &block rescue Errno::EACCES

new_here = File.expand_path('..', here)
      return if new_here == here # toplevel
      here = new_here
    end
  end

##
  # Globs for files matching +pattern+ inside of +directory+,
  # returning absolute paths to the matching files.

def self.glob_files_in_dir(glob, base_path)
    if RUBY_VERSION >= "2.5"
      Dir.glob(glob, base: base_path).map! {|f| File.expand_path(f, base_path) }
    else
      Dir.glob(File.expand_path(glob, base_path))
    end
  end

end

[+] resolver
[-] dependency_installer.rb [edit]
[-] exceptions.rb [edit]
[-] command.rb [edit]
[-] source.rb [edit]
[-] specification.rb [edit]
[-] path_support.rb [edit]
[+] commands
[-] rdoc.rb [edit]
[-] syck_hack.rb [edit]
[+] util
[-] uri_formatter.rb [edit]
[+] ext
[+] source
[-] compatibility.rb [edit]
[-] version.rb [edit]
[-] request.rb [edit]
[-] request_set.rb [edit]
[-] remote_fetcher.rb [edit]
[-] server.rb [edit]
[-] version_option.rb [edit]
[-] dependency_list.rb [edit]
[+] request
[-] basic_specification.rb [edit]
[-] source_local.rb [edit]
[-] config_file.rb [edit]
[-] platform.rb [edit]
[-] install_message.rb [edit]
[-] gem_runner.rb [edit]
[-] gemcutter_utilities.rb [edit]
[-] installer.rb [edit]
[-] available_set.rb [edit]
[-] safe_yaml.rb [edit]
[-] spec_fetcher.rb [edit]
[-] validator.rb [edit]
[-] specification_policy.rb [edit]
[-] util.rb [edit]
[-] command_manager.rb [edit]
[-] name_tuple.rb [edit]
[-] package_task.rb [edit]
[-] source_list.rb [edit]
[-] security.rb [edit]
[+] ..
[-] ext.rb [edit]
[-] local_remote_options.rb [edit]
[-] psych_tree.rb [edit]
[-] security_option.rb [edit]
[+] request_set
[-] installer_test_case.rb [edit]
[+] ssl_certs
[-] psych_additions.rb [edit]
[-] errors.rb [edit]
[-] test_case.rb [edit]
[-] install_update_options.rb [edit]
[-] stub_specification.rb [edit]
[-] dependency.rb [edit]
[-] user_interaction.rb [edit]
[-] source_specific_file.rb [edit]
[-] uninstaller.rb [edit]
[-] package.rb [edit]
[-] deprecate.rb [edit]
[-] mock_gem_ui.rb [edit]
[-] test_utilities.rb [edit]
[-] install_default_message.rb [edit]
[-] bundler_version_finder.rb [edit]
[+] core_ext
[+] package
[-] requirement.rb [edit]
[-] doctor.rb [edit]
[-] resolver.rb [edit]
[-] text.rb [edit]
[-] defaults.rb [edit]
[-] indexer.rb [edit]
[+] security