Fixed broken code in empty options check.

src/copy.coffee

@@ -87,7 +87,7 @@ copy = module.exports.async = (source, target, options, cb, depth = 0) ->
             return cb err if err
             async.each files, (file, cb) ->
               copy path.join(source, file), path.join(target, file), options, cb, depth
-            , cb 
+            , cb
 
 # Copy file or directory (Synchronous)
 # -------------------------------------------------

src/filter.coffee

@@ -28,8 +28,9 @@ util = require 'util'
 # * `callback(success)`
 #   The callback will be called with a boolean value showing if file is accepted.
 module.exports.async = (file, depth, options = {}, cb = -> ) ->
-  return cb true unless options? and options.length
+  return cb true unless options? and Object.keys(options).length
   debug "check #{file} for " + util.inspect options
+#  console.log "check #{file} for " + util.inspect options
   async.parallel [
     (cb) -> skipDepth file, depth, options, cb
     (cb) -> skipPath file, options, cb
@@ -61,7 +62,7 @@ module.exports.async = (file, depth, options = {}, cb = -> ) ->
 #
 # The options are the same as in the asynchronous method.
 module.exports.sync = (file, depth, options = {}) ->
-  return true unless options? and options.length
+  return true unless options? and Object.keys(options).length
   debug "check #{file} for " + util.inspect options
   return false if skipTypeSync file, options
   return false if skipDepthSync file, depth, options

test/mocha/filter-type.coffee

@@ -11,7 +11,7 @@ fs = require 'fs'
 
 describe "Type filtering", ->
 
-  filter = require '../../lib/filter'
+  filter = require '../../src/filter'
 
   files = [
     'test/temp/file1'