diff --git a/goDep.redoGoMod.go b/goDep.redoGoMod.go
index ee9e669..908e088 100644
--- a/goDep.redoGoMod.go
+++ b/goDep.redoGoMod.go
@@ -1,52 +1,22 @@
 package gitpb
 
-// does processing on the go.mod and go.sum files
-
 import (
-	"errors"
+	"fmt"
+
+	"go.wit.com/log"
 )
 
+// does processing on the go.mod and go.sum files
+
 // checks to see if the go.sum and go.mod files exist
 // also check for a match with the repo.pb GoPrimitive bool
 // todo: check mtime
 func (repo *Repo) ValidGoSum() error {
-	if !repo.Exists("go.mod") {
-		return errors.New("ValidGoSum() go.mod is missing")
-	}
-	if repo.GoInfo.GoPrimitive {
-		if !repo.Exists("go.mod") {
-			return errors.New("GoPrimitive == true, but go.mod is missing")
-		}
-		// repo thinks it is primitive but has a go.sum file
-		if repo.Exists("go.sum") {
-			return errors.New("GoPrimitive == true, but go.sum exists")
-		}
-		/*
-			// todo: fix this
-				mtime, err := repo.Mtime("go.mod")
-				if err == nil {
-					return err
-				}
-				if mtime != repo.LastGoDep.AsTime() {
-					return errors.New("go.mod mtime mis-match")
-				}
-		*/
+	if repo.ParseGoSum() {
 		return nil
 	}
-	if !repo.Exists("go.sum") {
-		return errors.New("ValidGoSum() go.sum is missing")
-	}
-	/*
-		mtime, err := repo.Mtime("go.sum")
-			// todo: fix this
-			if err == nil {
-				return err
-			}
-			if mtime != repo.LastGoDep.AsTime() {
-				return errors.New("go.sum mtime mis-match")
-			}
-	*/
-	return nil
+	log.Info("ValidGoSum() deprecated")
+	return fmt.Errorf("ParseGoSum() failed")
 }
 
 func (repo *Repo) GoDepsLen() int {
diff --git a/mtime.go b/mtime.go
index dd13a38..8ab07b8 100644
--- a/mtime.go
+++ b/mtime.go
@@ -162,6 +162,9 @@ func (repo *Repo) updateMtimes() bool {
 }
 
 func (repo *Repo) DidRepoChange() bool {
+	if repo.Times == nil {
+		repo.Times = new(GitTimes)
+	}
 	if repo.didFileChange(".git/HEAD", repo.Times.MtimeHead) {
 		return true
 	}