support lua filter

conf/redis-shake.conf

@@ -119,6 +119,10 @@ filter.key =
 # used in `sync`.
 # 指定过滤slot，只让指定的slot通过
 filter.slot =
+# filter lua script. true means not pass. However, in redis 5.0, the lua 
+# converts to transaction(multi+{commands}+exec) which will be passed.
+# 控制不让lua脚本通过，true表示不通过
+filter.lua = false
 
 # big key threshold, the default is 500 * 1024 * 1024 bytes. If the value is bigger than
 # this given value, all the field will be spilt and write into the target in order.

src/redis-shake/common/filter.go

@@ -0,0 +1,16 @@
+package utils
+
+import "strings"
+
+// return true means not pass
+func FilterCommands(cmd string, luaFilter bool) bool {
+	if strings.EqualFold(cmd, "opinfo") {
+		return true
+	}
+
+	if luaFilter && (strings.EqualFold(cmd, "eval") || strings.EqualFold(cmd, "script")) {
+		return true
+	}
+
+	return false
+}

src/redis-shake/common/utils.go

@@ -733,10 +733,12 @@ func RestoreRdbEntry(c redigo.Conn, e *rdb.BinEntry) {
 
 	// load lua script
 	if e.Type == rdb.RdbFlagAUX && string(e.Key) == "lua" {
+		if conf.Options.FilterLua == false {
 			_, err := c.Do("script", "load", e.Value)
 			if err != nil {
 				log.Panicf(err.Error())
 			}
+		}
 		return
 	}
 

src/redis-shake/configure/configure.go

@@ -36,6 +36,7 @@ type Configuration struct {
 	FilterDB                  string   `config:"filter.db"`
 	FilterKey                 []string `config:"filter.key"`
 	FilterSlot                []string `config:"filter.slot"`
+	FilterLua                 bool     `config:"filter.lua"`
 	BigKeyThreshold           uint64   `config:"big_key_threshold"`
 	Psync                     bool     `config:"psync"`
 	Metric                    bool     `config:"metric"`

src/redis-shake/sync.go

@@ -613,7 +613,7 @@ func (ds *dbSyncer) syncCommand(reader *bufio.Reader, target []string, auth_type
 						}
 						bypass = !base.AcceptDB(uint32(n))
 						isselect = true
-					} else if strings.EqualFold(scmd, "opinfo") {
+					} else if utils.FilterCommands(scmd, conf.Options.FilterLua) {
 						ignorecmd = true
 					}
 					if bypass || ignorecmd {