[rubygems/rubygems] Fix bundle package --no-install no longer skipping install

This is a regression from https://github.com/rubygems/rubygems/commit/cf749f8ffabd. The
funny thing is that we have a spec for this feature, so it was unclear
how we regressed here. It turns out there was a bug in one of our
negative matchers checking that gems ARE NOT included in a bundle.

This commit fixes the bug in the negative matcher and reverts
https://github.com/rubygems/rubygems/commit/cf749f8ffabd (with a slightly simpler diff).

https://github.com/rubygems/rubygems/commit/3f9a4ff32a

lib/bundler/cli.rb

@@ -251,7 +251,9 @@ module Bundler
       remembered_negative_flag_deprecation("no-deployment")
 
       require_relative "cli/install"
-      Install.new(options.dup).run
+      Bundler.settings.temporary(:no_install => false) do
+        Install.new(options.dup).run
+      end
     end
 
     map aliases_for("install")
@@ -297,7 +299,9 @@ module Bundler
     def update(*gems)
       SharedHelpers.major_deprecation(2, "The `--force` option has been renamed to `--redownload`") if ARGV.include?("--force")
       require_relative "cli/update"
-      Update.new(options, gems).run
+      Bundler.settings.temporary(:no_install => false) do
+        Update.new(options, gems).run
+      end
     end
 
     desc "show GEM [OPTIONS]", "Shows all gems that are part of the bundle, or the path to a given gem"

lib/bundler/cli/cache.rb

@@ -14,7 +14,7 @@ module Bundler
       Bundler.settings.set_command_option_if_given :cache_path, options["cache-path"]
 
       setup_cache_all
-      install unless Bundler.settings[:no_install]
+      install
 
       # TODO: move cache contents here now that all bundles are locked
       custom_path = Bundler.settings[:path] if options[:path]

lib/bundler/cli/install.rb

@@ -161,6 +161,8 @@ module Bundler
 
       Bundler.settings.set_command_option_if_given :no_prune, options["no-prune"]
 
+      Bundler.settings.set_command_option_if_given :no_install, options["no-install"]
+
       Bundler.settings.set_command_option_if_given :clean, options["clean"]
 
       normalize_groups if options[:without] || options[:with]

lib/bundler/source/rubygems.rb

@@ -160,6 +160,8 @@ module Bundler
           raise GemNotFound, "Could not find #{spec.file_name} for installation" unless path
         end
 
+        return if Bundler.settings[:no_install]
+
         if requires_sudo?
           install_path = Bundler.tmp(spec.full_name)
           bin_path     = install_path.join("bin")

spec/bundler/support/matchers.rb

@@ -178,7 +178,7 @@ module Spec
 
             begin
               require '#{name}'
-              name_constant = '#{Spec::Builders.constantize(name)}'
+              name_constant = #{Spec::Builders.constantize(name)}
               if #{version.nil?} || name_constant == '#{version}'
                 exit 64
               else