Support running with frozen string literals

lib/gauntlet_rubygems.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems'
 require 'gauntlet'
 

lib/rubygems.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # -*- ruby -*-
 #--
 # Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.

lib/rubygems/available_set.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 class Gem::AvailableSet
 
   include Enumerable

lib/rubygems/basic_specification.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 ##
 # BasicSpecification is an abstract class which implements some common code
 # used by both Specification and StubSpecification.
@@ -124,9 +125,9 @@ def full_gem_path
 
   def full_name
     if platform == Gem::Platform::RUBY or platform.nil? then
-      "#{name}-#{version}".untaint
+      "#{name}-#{version}".dup.untaint
     else
-      "#{name}-#{version}-#{platform}".untaint
+      "#{name}-#{version}-#{platform}".dup.untaint
     end
   end
 
@@ -281,7 +282,7 @@ def lib_dirs_glob
              self.require_paths.first
            end
 
-    "#{self.full_gem_path}/#{dirs}".untaint
+    "#{self.full_gem_path}/#{dirs}".dup.untaint
   end
 
   ##
@@ -325,4 +326,3 @@ def have_file? file, suffixes
   end
 
 end
-

lib/rubygems/command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 #--
 # Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
 # All rights reserved.
@@ -153,7 +154,7 @@ def execute
 
   def show_lookup_failure(gem_name, version, errors, domain)
     if errors and !errors.empty?
-      msg = "Could not find a valid gem '#{gem_name}' (#{version}), here is why:\n"
+      msg = "Could not find a valid gem '#{gem_name}' (#{version}), here is why:\n".dup
       errors.each { |x| msg << "          #{x.wordy}\n" }
       alert_error msg
     else
@@ -584,4 +585,3 @@ def wrap(text, width) # :doc:
 
 module Gem::Commands
 end
-

lib/rubygems/command_manager.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 #--
 # Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
 # All rights reserved.

lib/rubygems/commands/build_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/package'
 

lib/rubygems/commands/cert_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/security'
 begin

lib/rubygems/commands/check_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/version_option'
 require 'rubygems/validator'

lib/rubygems/commands/cleanup_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/dependency_list'
 require 'rubygems/uninstaller'

lib/rubygems/commands/contents_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'English'
 require 'rubygems/command'
 require 'rubygems/version_option'

lib/rubygems/commands/dependency_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/local_remote_options'
 require 'rubygems/version_option'
@@ -99,7 +100,7 @@ def display_pipe specs # :nodoc:
   end
 
   def display_readable specs, reverse # :nodoc:
-    response = ''
+    response = String.new
 
     specs.each do |spec|
       response << print_dependencies(spec)
@@ -152,7 +153,7 @@ def ensure_specs specs # :nodoc:
   end
 
   def print_dependencies(spec, level = 0) # :nodoc:
-    response = ''
+    response = String.new
     response << '  ' * level + "Gem #{spec.full_name}\n"
     unless spec.dependencies.empty? then
       spec.dependencies.sort_by { |dep| dep.name }.each do |dep|

lib/rubygems/commands/environment_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 
 class Gem::Commands::EnvironmentCommand < Gem::Command
@@ -71,7 +72,7 @@ def usage # :nodoc:
   end
 
   def execute
-    out = ''
+    out = String.new
     arg = options[:args][0]
     out <<
       case arg
@@ -103,7 +104,7 @@ def add_path out, path
   end
 
   def show_environment # :nodoc:
-    out = "RubyGems Environment:\n"
+    out = "RubyGems Environment:\n".dup
 
     out << "  - RUBYGEMS VERSION: #{Gem::VERSION}\n"
 
@@ -157,4 +158,3 @@ def show_environment # :nodoc:
   end
 
 end
-

lib/rubygems/commands/fetch_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/local_remote_options'
 require 'rubygems/version_option'

lib/rubygems/commands/generate_index_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/indexer'
 

lib/rubygems/commands/help_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 
 class Gem::Commands::HelpCommand < Gem::Command

lib/rubygems/commands/install_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/install_update_options'
 require 'rubygems/dependency_installer'

lib/rubygems/commands/list_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/commands/query_command'
 

lib/rubygems/commands/lock_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 
 class Gem::Commands::LockCommand < Gem::Command

lib/rubygems/commands/mirror_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 
 unless defined? Gem::Commands::MirrorCommand

lib/rubygems/commands/open_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'English'
 require 'rubygems/command'
 require 'rubygems/version_option'

lib/rubygems/commands/outdated_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/local_remote_options'
 require 'rubygems/spec_fetcher'

lib/rubygems/commands/owner_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/local_remote_options'
 require 'rubygems/gemcutter_utilities'

lib/rubygems/commands/pristine_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/package'
 require 'rubygems/installer'

lib/rubygems/commands/push_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/local_remote_options'
 require 'rubygems/gemcutter_utilities'

lib/rubygems/commands/query_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/local_remote_options'
 require 'rubygems/spec_fetcher'
@@ -283,7 +284,7 @@ def make_entry entry_tuples, platforms
   end
 
   def spec_authors entry, spec
-    authors = "Author#{spec.authors.length > 1 ? 's' : ''}: "
+    authors = "Author#{spec.authors.length > 1 ? 's' : ''}: ".dup
     authors << spec.authors.join(', ')
     entry << format_text(authors, 68, 4)
   end
@@ -297,7 +298,7 @@ def spec_homepage entry, spec
   def spec_license entry, spec
     return if spec.license.nil? or spec.license.empty?
 
-    licenses = "License#{spec.licenses.length > 1 ? 's' : ''}: "
+    licenses = "License#{spec.licenses.length > 1 ? 's' : ''}: ".dup
     licenses << spec.licenses.join(', ')
     entry << "\n" << format_text(licenses, 68, 4)
   end
@@ -347,4 +348,3 @@ def spec_summary entry, spec
   end
 
 end
-

lib/rubygems/commands/rdoc_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/version_option'
 require 'rubygems/rdoc'

lib/rubygems/commands/search_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/commands/query_command'
 

lib/rubygems/commands/server_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/server'
 

lib/rubygems/commands/setup_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 
 ##

lib/rubygems/commands/sources_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/remote_fetcher'
 require 'rubygems/spec_fetcher'

lib/rubygems/commands/specification_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/local_remote_options'
 require 'rubygems/version_option'

lib/rubygems/commands/stale_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 
 class Gem::Commands::StaleCommand < Gem::Command

lib/rubygems/commands/uninstall_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/version_option'
 require 'rubygems/uninstaller'

lib/rubygems/commands/unpack_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/installer'
 require 'rubygems/version_option'

lib/rubygems/commands/update_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/command_manager'
 require 'rubygems/dependency_installer'

lib/rubygems/commands/which_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 
 class Gem::Commands::WhichCommand < Gem::Command

lib/rubygems/commands/yank_command.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 require 'rubygems/local_remote_options'
 require 'rubygems/version_option'

lib/rubygems/compatibility.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # :stopdoc:
 
 #--

lib/rubygems/config_file.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 #--
 # Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
 # All rights reserved.

lib/rubygems/core_ext/kernel_gem.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 ##
 # RubyGems adds the #gem method to allow activation of specific gem versions
 # and overrides the #require method on Kernel to make gems appear as if they

lib/rubygems/core_ext/kernel_require.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 #--
 # Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
 # All rights reserved.

lib/rubygems/defaults.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module Gem
   DEFAULT_HOST = "https://rubygems.org"
 

lib/rubygems/dependency.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 ##
 # The Dependency class holds a Gem name and a Gem::Requirement.
 
@@ -306,9 +307,9 @@ def to_specs
 
       if specs.empty?
         total = Gem::Specification.to_a.size
-        msg   = "Could not find '#{name}' (#{requirement}) among #{total} total gem(s)\n"
+        msg   = "Could not find '#{name}' (#{requirement}) among #{total} total gem(s)\n".dup
       else
-        msg   = "Could not find '#{name}' (#{requirement}) - did find: [#{specs.join ','}]\n"
+        msg   = "Could not find '#{name}' (#{requirement}) - did find: [#{specs.join ','}]\n".dup
       end
       msg << "Checked in 'GEM_PATH=#{Gem.path.join(File::PATH_SEPARATOR)}', execute `gem env` for more information"
 

lib/rubygems/dependency_installer.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems'
 require 'rubygems/dependency_list'
 require 'rubygems/package'

lib/rubygems/dependency_list.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 #--
 # Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
 # All rights reserved.

lib/rubygems/deprecate.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 ##
 # Provides a single method +deprecate+ to be used to declare when
 # something is going away.

lib/rubygems/doctor.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems'
 require 'rubygems/user_interaction'
 

lib/rubygems/errors.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 #--
 # This file contains all the various exceptions and other errors that are used
 # inside of RubyGems.

lib/rubygems/exceptions.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # TODO: the documentation in here is terrible.
 #
 # Each exception needs a brief description and the scenarios where it is
@@ -137,7 +138,7 @@ def build_message # :nodoc:
     requester  = requester ? requester.spec.full_name : 'The user'
     dependency = @request.dependency
 
-    message = "#{requester} requires #{dependency} but it conflicted:\n"
+    message = "#{requester} requires #{dependency} but it conflicted:\n".dup
 
     @conflicts.each do |_, conflict|
       message << conflict.explanation
@@ -267,4 +268,3 @@ def version
 # Backwards compatible typo'd exception class for early RubyGems 2.0.x
 
 Gem::UnsatisfiableDepedencyError = Gem::UnsatisfiableDependencyError # :nodoc:
-

lib/rubygems/ext.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 #--
 # Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
 # All rights reserved.

lib/rubygems/ext/build_error.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 ##
 # Raised when there is an error while building extensions.
 

lib/rubygems/ext/builder.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 #--
 # Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
 # All rights reserved.

lib/rubygems/ext/cmake_builder.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems/command'
 
 class Gem::Ext::CmakeBuilder < Gem::Ext::Builder