Implementation of Rename method for S3 PublishedStorage. #15

Gomfile

@@ -10,7 +10,7 @@ gom 'github.com/syndtr/goleveldb/leveldb', :commit => '9888007'
 gom 'github.com/ugorji/go/codec', :commit => '71c2886f5a673a35f909803f38ece5810165097b'
 gom 'github.com/wsxiaoys/terminal/color', :commit => '5668e431776a7957528361f90ce828266c69ed08'
 gom 'code.google.com/p/mxk/go1/flowcontrol', :commit => '5ff2502e2556'
-gom 'github.com/mitchellh/goamz/s3', :commit => '3c2b519fc7544563e5a2031cc8bb04b567b1b9bc'
+gom 'github.com/mitchellh/goamz/s3', :commit => 'd52d1cf9e63e860748042a0e97e7f670fb725e24'
 
 group :test do
     gom 'launchpad.net/gocheck'

s3/public.go

@@ -208,5 +208,10 @@ func (storage *PublishedStorage) Filelist(prefix string) ([]string, error) {
 
 // RenameFile renames (moves) file
 func (storage *PublishedStorage) RenameFile(oldName, newName string) error {
-	panic("not implemented yet")
+	err := storage.bucket.Copy(filepath.Join(storage.prefix, oldName), filepath.Join(storage.prefix, newName), storage.acl)
+	if err != nil {
+		return fmt.Errorf("error copying %s -> %s in %s: %s", oldName, newName, storage, err)
+	}
+
+	return storage.Remove(oldName)
 }