Return BuildBlob() to function from method

indexer/blob.go

@@ -58,9 +58,7 @@ func GenerateBlobID(parentID, filename string) string {
 	return fmt.Sprintf("%s_%s", parentID, filename)
 }
-func (i *Indexer) BuildBlob(file *git.File, commitSHA string) (*Blob, error) {
-	parentID := i.Submitter.ParentID()
-
+func BuildBlob(file *git.File, parentID, commitSHA string) (*Blob, error) {
 	if file.Size > maxBlobSize {
 		return nil, skipTooLargeBlob
 	}

indexer/indexer.go

@@ -31,7 +31,7 @@ func (i *Indexer) SubmitCommit(c *git.Commit) error {
 func (i *Indexer) SubmitBlob(f *git.File, _, toCommit string) error {
 	// FIXME(nick): Not sure commitSHA is right, or how it works at all
-	blob, err := i.BuildBlob(f, toCommit)
+	blob, err := BuildBlob(f, i.Submitter.ParentID(), toCommit)
 	if err != nil {
 		if isSkipBlobErr(err) {
 			return nil