bug fix

filter.go

@@ -8,31 +8,37 @@ import (
 	"strings"
 )
 
+// Matcher is the matcher function type
 type Matcher func(path string) bool
 
+// Filter defines an interface to filter paths or files
 type Filter interface {
 	Filter(path string) error
 }
 
+// ErrMacOSFilter error returned by the MacOSFilter
 var ErrMacOSFilter = errors.New("authdav: MacOS filter: access denied")
 
+// MacOSFilter implements a filter for MacOS specific files
 type MacOSFilter struct {
 	match []Matcher
 }
 
+// NewMacOSFilter returns a new MacOSFilter
 func NewMacOSFilter() *MacOSFilter {
 	return &MacOSFilter{
 		match: []Matcher{
-			func(p string) {
+			func(p string) bool {
 				return p == ".DS_Store"
 			},
-			func(p string) {
+			func(p string) bool {
 				return strings.HasPrefix(p, "._")
 			},
 		},
 	}
 }
 
+// Filter implements the Filter interface
 func (f *MacOSFilter) Filter(path string) error {
 	_, f := filepath.Split(path)
 	for _, m := range f.match {