Merge pull request #2639 from joyicecloud/show-version-of-gem-updated

Displays the previous version of the gem when run bundle update

Conflicts:
	lib/bundler/source.rb
	lib/bundler/source/git/git_proxy.rb
	lib/bundler/source/rubygems.rb

1 files changed, 11 insertions, 1 deletions

diff --git a/lib/bundler/source.rb b/lib/bundler/source.rb
index 4ab7a8e457..a42bfde74c 100644
--- a/lib/bundler/source.rb
+++ b/lib/bundler/source.rb
@@ -1,5 +1,5 @@
 module Bundler
-  module Source
+  class Source
     autoload :Rubygems, 'bundler/source/rubygems'
     autoload :Path,     'bundler/source/path'
     autoload :Git,      'bundler/source/git'
@@ -14,5 +14,15 @@ module Bundler
       mirrors[normalized_key] || uri
     end
 
+    def version_message(spec)
+      locked_spec = Bundler.locked_gems.specs.find { |s| s.name == spec.name } if Bundler.locked_gems
+      locked_spec_version = locked_spec.version if locked_spec
+      message = "#{spec.name} #{spec.version}"
+      if locked_spec_version && spec.version != locked_spec_version
+        message << " (was #{locked_spec_version})"
+      end
+      message
+    end
+
   end
 end