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/setup.rb b/lib/bundler/setup.rb
new file mode 100644
index 0000000000..ac6a5bf861
--- /dev/null
+++ b/lib/bundler/setup.rb
@@ -0,0 +1,28 @@
+# frozen_string_literal: true
+
+require "bundler/shared_helpers"
+
+if Bundler::SharedHelpers.in_bundle?
+  require "bundler"
+
+  if STDOUT.tty? || ENV["BUNDLER_FORCE_TTY"]
+    begin
+      Bundler.setup
+    rescue Bundler::BundlerError => e
+      puts "\e[31m#{e.message}\e[0m"
+      puts e.backtrace.join("\n") if ENV["DEBUG"]
+      if e.is_a?(Bundler::GemNotFound)
+        puts "\e[33mRun `bundle install` to install missing gems.\e[0m"
+      end
+      exit e.status_code
+    end
+  else
+    Bundler.setup
+  end
+
+  # Add bundler to the load path after disabling system gems
+  bundler_lib = File.expand_path("../..", __FILE__)
+  $LOAD_PATH.unshift(bundler_lib) unless $LOAD_PATH.include?(bundler_lib)
+
+  Bundler.ui = nil
+end