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, 37 insertions, 0 deletions

diff --git a/lib/bundler/psyched_yaml.rb b/lib/bundler/psyched_yaml.rb
new file mode 100644
index 0000000000..e654416a5a
--- /dev/null
+++ b/lib/bundler/psyched_yaml.rb
@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+# Psych could be a gem, so try to ask for it
+begin
+  gem "psych"
+rescue LoadError
+end if defined?(gem)
+
+# Psych could be in the stdlib
+# but it's too late if Syck is already loaded
+begin
+  require "psych" unless defined?(Syck)
+rescue LoadError
+  # Apparently Psych wasn't available. Oh well.
+end
+
+# At least load the YAML stdlib, whatever that may be
+require "yaml" unless defined?(YAML.dump)
+
+module Bundler
+  # On encountering invalid YAML,
+  # Psych raises Psych::SyntaxError
+  if defined?(::Psych::SyntaxError)
+    YamlLibrarySyntaxError = ::Psych::SyntaxError
+  else # Syck raises ArgumentError
+    YamlLibrarySyntaxError = ::ArgumentError
+  end
+end
+
+require "bundler/deprecate"
+begin
+  Bundler::Deprecate.skip_during do
+    require "rubygems/safe_yaml"
+  end
+rescue LoadError
+  # it's OK if the file isn't there
+end