From d34cea33c9a9aed2f330713efdcb375e198ee287 Mon Sep 17 00:00:00 2001
From: ac79b0c6 <105047743+ac79b0c6@users.noreply.github.com>
Date: Sat, 7 May 2022 10:45:16 +0800
Subject: update mkvtool:fix caches

---
 README.md        |  1 +
 mkvtool/go.mod   |  5 +----
 mkvtool/main.go  | 11 +++++++----
 mkvtool/utils.go |  9 +++++++++
 4 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/README.md b/README.md
index a634ce4..aa0ad9e 100644
--- a/README.md
+++ b/README.md
@@ -111,6 +111,7 @@ ASS字幕字体子集化 MKV批量提取/生成
     mkvtool -cc -s input #从${input}获取字体信息并创建缓存
   
     #可选"-cp"参数:指定缓存文件的保存目录.
+    #可选"-clean"参数:清空缓存目录.
     ```
   - 取得一个(或目录里所有)ass字幕文件所需要的全部字体
     ```shell
diff --git a/mkvtool/go.mod b/mkvtool/go.mod
index 4d282ac..0c20219 100644
--- a/mkvtool/go.mod
+++ b/mkvtool/go.mod
@@ -2,10 +2,7 @@ module github.com/MkvAutoSubset/MkvAutoSubset/mkvtool
 
 go 1.18
 
-require (
-	github.com/MkvAutoSubset/MkvAutoSubset/mkvlib v0.0.0-20220506111355-2978cfb6c703
-	github.com/google/uuid v1.3.0
-)
+require github.com/MkvAutoSubset/MkvAutoSubset/mkvlib v0.0.0-20220506111355-2978cfb6c703
 
 require (
 	github.com/antchfx/xmlquery v1.3.10 // indirect
diff --git a/mkvtool/main.go b/mkvtool/main.go
index 12fd890..4d71da0 100644
--- a/mkvtool/main.go
+++ b/mkvtool/main.go
@@ -4,7 +4,6 @@ import (
 	"flag"
 	"fmt"
 	"github.com/MkvAutoSubset/MkvAutoSubset/mkvlib"
-	"github.com/google/uuid"
 	"io"
 	"io/ioutil"
 	"log"
@@ -17,7 +16,7 @@ import (
 )
 
 const appName = "MKV Tool"
-const appVer = "v3.8.7"
+const appVer = "v3.8.8"
 const tTitle = appName + " " + appVer
 
 var appFN = fmt.Sprintf("%s %s %s/%s", appName, appVer, runtime.GOOS, runtime.GOARCH)
@@ -88,7 +87,7 @@ func main() {
 	flag.BoolVar(&cc, "cc", false, "Create fonts cache.")
 	flag.Var(asses, "a", "ASS files. (multiple & join ass mode)")
 	flag.BoolVar(&n, "n", false, "Not do ass font subset & not change font name.")
-	flag.BoolVar(&clean, "clean", false, "Clean original file subtitles and fonts. (create mode only)")
+	flag.BoolVar(&clean, "clean", false, "Clean original file subtitles and fonts for create mode, or clean old caches for create cache mode.")
 	flag.BoolVar(&ck, "ck", false, "Enable check mode.")
 	flag.BoolVar(&cks, "cks", false, "Enable strict mode for check.")
 	flag.StringVar(&sl, "sl", "chi", "Subtitle language. (create & make mode only)")
@@ -161,7 +160,11 @@ func main() {
 	}
 
 	if cc && s != "" {
-		list := processer.CreateFontsCache(s, path.Join(cache_p, uuid.New().String()+".cache"), nil)
+		if clean {
+			_ = os.RemoveAll(cache_p)
+		}
+		p := path.Join(cache_p, path2MD5(s)+".cache")
+		list := processer.CreateFontsCache(s, p, nil)
 		el := len(list)
 		if el > 0 {
 			ec++
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))
+}
-- 
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