diff --git a/zip/zip.go b/zip/zip.go
index 5e1a104..30a2ee7 100644
--- a/zip/zip.go
+++ b/zip/zip.go
@@ -282,6 +282,7 @@
 	StoreSymlinks            bool
 	IgnoreMissingFiles       bool
 	Sha256Checksum           bool
+	DoNotWrite               bool
 
 	Stderr     io.Writer
 	Filesystem pathtools.FileSystem
@@ -400,7 +401,9 @@
 
 	var zipErr error
 
-	if !args.WriteIfChanged {
+	if args.DoNotWrite {
+		out = io.Discard
+	} else if !args.WriteIfChanged {
 		f, err := os.Create(args.OutputFilePath)
 		if err != nil {
 			return err
@@ -421,7 +424,7 @@
 		return zipErr
 	}
 
-	if args.WriteIfChanged {
+	if args.WriteIfChanged && !args.DoNotWrite {
 		err := pathtools.WriteFileIfChanged(args.OutputFilePath, buf.Bytes(), 0666)
 		if err != nil {
 			return err