lib/keep_up/bundle.rb in keep_up-0.10.0 vs lib/keep_up/bundle.rb in keep_up-0.10.1

@@ -35,20 +35,20 @@
 
     def update_gemfile_contents(update)
       update = find_specification_update(dependencies, update)
       return unless update
 
-      update_specification_contents(update, "Gemfile", GemfileFilter)
+      update if update_specification_contents(update, "Gemfile", GemfileFilter)
     end
 
     def update_gemspec_contents(update)
       return unless gemspec_name
 
       update = find_specification_update(dependencies, update)
       return unless update
 
-      update_specification_contents(update, gemspec_name, GemspecFilter)
+      update if update_specification_contents(update, gemspec_name, GemspecFilter)
     end
 
     # Update lockfile and return resulting spec, or false in case of failure
     def update_lockfile(update)
       update_name = update.name
@@ -109,10 +109,17 @@
 
       current_dependency.generalize_specification(update)
     end
 
     def update_specification_contents(update, file, filter)
-      File.write file, filter.apply(File.read(file), update)
+      contents = File.read(file)
+      updated_contents = filter.apply(contents, update)
+      if contents == updated_contents
+        false
+      else
+        File.write file, updated_contents
+        true
+      end
     end
 
     def gemspec_name
       @gemspec_name ||= Dir.glob("*.gemspec").first
     end