func Md5Check return bool (#153)

pkg/common/util.go

@@ -87,22 +87,26 @@ func IsRegularFile(fileLoc string) bool {
 	return regularFileRegexp.MatchString(fileLoc)
 }
 
-func Md5Check(fileLoc, md5str string) {
+func Md5Check(fileLoc, md5str string) bool {
 	// Skip non-regular (i.e, metadata) files
 	if IsRegularFile(fileLoc) {
 		f, err := os.Open(fileLoc)
 		if err != nil {
 			log.Fatal(err)
+			return false
 		}
 		defer f.Close()
 		h := md5.New()
 		if _, err := io.Copy(h, f); err != nil {
 			log.Fatal(err)
+			return false
 		}
 		calculated := fmt.Sprintf("%x", h.Sum(nil))
 		match := strings.EqualFold(md5str, calculated)
 		if !match {
 			log.Fatal(fmt.Sprintf("Md5 not match, expected: %s, calculated: %s", md5str, calculated))
+			return false
 		}
 	}
+	return true
 }