update mkvtool:fix caches

1 files changed, 9 insertions, 0 deletions

diff --git a/mkvtool/utils.go b/mkvtool/utils.go
index e60afe8..835e88c 100644
--- a/mkvtool/utils.go
+++ b/mkvtool/utils.go
@@ -1,7 +1,9 @@
 package main
 
 import (
+	"crypto/md5"
 	"errors"
+	"fmt"
 	"os"
 	"path/filepath"
 	"regexp"
@@ -48,3 +50,10 @@ func splitPath(p string) (dir, name, ext, namewithoutext string) {
 	}
 	return
 }
+
+func path2MD5(p string) string {
+	p, _ = filepath.Abs(p)
+	h := md5.New()
+	h.Write([]byte(p))
+	return fmt.Sprintf("%x", h.Sum(nil))
+}