[ruby/rubygems] Progressively enhance if DidYouMean is available

https://github.com/ruby/rubygems/commit/a02353fb96

1 files changed, 5 insertions, 4 deletions

diff --git a/lib/bundler/cli/common.rb b/lib/bundler/cli/common.rb
index c0eefadf51..b410ba9d26 100644
--- a/lib/bundler/cli/common.rb
+++ b/lib/bundler/cli/common.rb
@@ -94,11 +94,12 @@ module Bundler
     end
 
     def self.gem_not_found_message(missing_gem_name, alternatives)
-      require "did_you_mean/spell_checker"
       message = "Could not find gem '#{missing_gem_name}'."
-      alternate_names = alternatives.map {|a| a.respond_to?(:name) ? a.name : a }
-      suggestions = DidYouMean::SpellChecker.new(:dictionary => alternate_names).correct(missing_gem_name)
-      message += "\nDid you mean #{word_list(suggestions)}?" unless suggestions.empty?
+      if defined?(DidYouMean::SpellChecker)
+        alternate_names = alternatives.map {|a| a.respond_to?(:name) ? a.name : a }
+        suggestions = DidYouMean::SpellChecker.new(:dictionary => alternate_names).correct(missing_gem_name)
+        message += "\nDid you mean #{word_list(suggestions)}?" unless suggestions.empty?
+      end
       message
     end