feat: add raft implementation

build_proto.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+protoc --go_out=. --go_opt=paths=source_relative \
+       --go-grpc_out=. --go-grpc_opt=paths=source_relative \
+       proto/raft.proto
+
+go mod tidy
+./format_check.sh

common/assert.go

@@ -0,0 +1,7 @@
+package common
+
+func Assert(condition bool, msg string) {
+	if !condition {
+		panic(msg)
+	}
+}

common/logger.go

@@ -37,10 +37,10 @@ func (f *customFormatter) Format(entry *logrus.Entry) ([]byte, error) {
 	return f.Formatter.Format(entry)
 }
 
-var log *logrus.Logger
+var Log *logrus.Logger
 
 func init() {
-	log = logrus.New()
-	log.SetFormatter(newCustomFormatter())
-	log.SetLevel(ENABLE_LOG_LEVEL)
+	Log = logrus.New()
+	Log.SetFormatter(newCustomFormatter())
+	Log.SetLevel(ENABLE_LOG_LEVEL)
 }