Added bundler as default gems. Revisit [Feature #12733]

  * bin/*, lib/bundler/*, lib/bundler.rb, spec/bundler, man/*:
    Merge from latest stable branch of bundler/bundler repository and
    added workaround patches. I will backport them into upstream.
  * common.mk, defs/gmake.mk: Added `test-bundler` task for test suite
    of bundler.
  * tool/sync_default_gems.rb: Added sync task for bundler.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65509 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 28 insertions, 0 deletions

diff --git a/lib/bundler/version.rb b/lib/bundler/version.rb
new file mode 100644
index 0000000000..02ec96adc9
--- /dev/null
+++ b/lib/bundler/version.rb
@@ -0,0 +1,28 @@
+# frozen_string_literal: false
+
+# Ruby 1.9.3 and old RubyGems don't play nice with frozen version strings
+# rubocop:disable MutableConstant
+
+module Bundler
+  # We're doing this because we might write tests that deal
+  # with other versions of bundler and we are unsure how to
+  # handle this better.
+  VERSION = "1.17.1" unless defined?(::Bundler::VERSION)
+
+  def self.overwrite_loaded_gem_version
+    begin
+      require "rubygems"
+    rescue LoadError
+      return
+    end
+    return unless bundler_spec = Gem.loaded_specs["bundler"]
+    return if bundler_spec.version == VERSION
+    bundler_spec.version = Bundler::VERSION
+  end
+  private_class_method :overwrite_loaded_gem_version
+  overwrite_loaded_gem_version
+
+  def self.bundler_major_version
+    @bundler_major_version ||= VERSION.split(".").first.to_i
+  end
+end