lib/wcc/utils.rb in danger-wcc-0.0.3 vs lib/wcc/utils.rb in danger-wcc-0.0.4

@@ -100,13 +100,15 @@
   # Executes a block after checking out the specified revision into a temp
   # directory.
   def with_revision(revision)
     Dir.mktmpdir do |dir|
       logger.debug "Checking out revision #{revision} into #{dir}"
-      system "git --work-tree=#{dir} checkout #{revision.strip} -- ."
+      system "git worktree add #{dir} #{revision.strip}"
 
       yield(dir)
     end
+  ensure
+    system 'git worktree prune'
   end
 
   # Creates a git-format diff of the two strings by writing them to temp files
   def diff_strings(a, b)
     File.write('a.tmp', a)