Refactor cache and disable go-chi cache (#30417)

use built-in cache package to wrap external go-chi cache package

1 files changed, 5 insertions, 6 deletions

diff --git a/services/repository/branch.go b/services/repository/branch.go
index 229ac54f30..d74e5819a1 100644
--- a/services/repository/branch.go
+++ b/services/repository/branch.go
@@ -26,6 +26,7 @@ import (
 	"code.gitea.io/gitea/modules/queue"
 	repo_module "code.gitea.io/gitea/modules/repository"
 	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
 	webhook_module "code.gitea.io/gitea/modules/webhook"
 	notify_service "code.gitea.io/gitea/services/notify"
 	files_service "code.gitea.io/gitea/services/repository/files"
@@ -119,17 +120,15 @@ func getDivergenceCacheKey(repoID int64, branchName string) string {
 
 // getDivergenceFromCache gets the divergence from cache
 func getDivergenceFromCache(repoID int64, branchName string) (*git.DivergeObject, bool) {
-	data := cache.GetCache().Get(getDivergenceCacheKey(repoID, branchName))
+	data, ok := cache.GetCache().Get(getDivergenceCacheKey(repoID, branchName))
 	res := git.DivergeObject{
 		Ahead:  -1,
 		Behind: -1,
 	}
-	s, ok := data.([]byte)
-	if !ok || len(s) == 0 {
+	if !ok || data == "" {
 		return &res, false
 	}
-
-	if err := json.Unmarshal(s, &res); err != nil {
+	if err := json.Unmarshal(util.UnsafeStringToBytes(data), &res); err != nil {
 		log.Error("json.UnMarshal failed: %v", err)
 		return &res, false
 	}
@@ -141,7 +140,7 @@ func putDivergenceFromCache(repoID int64, branchName string, divergence *git.Div
 	if err != nil {
 		return err
 	}
-	return cache.GetCache().Put(getDivergenceCacheKey(repoID, branchName), bs, 30*24*60*60)
+	return cache.GetCache().Put(getDivergenceCacheKey(repoID, branchName), util.UnsafeBytesToString(bs), 30*24*60*60)
 }
 
 func DelDivergenceFromCache(repoID int64, branchName string) error {