[优化] go 引用调整

openflare-server/common/redis.go

@@ -0,0 +1,41 @@
+package common
+
+import (
+	"context"
+	"log/slog"
+	"os"
+	"time"
+
+	"github.com/go-redis/redis/v8"
+)
+
+var RDB *redis.Client
+var RedisEnabled = true
+
+// InitRedisClient This function is called after init()
+func InitRedisClient() (err error) {
+	if os.Getenv("REDIS_CONN_STRING") == "" {
+		RedisEnabled = false
+		slog.Info("redis disabled because REDIS_CONN_STRING is not set")
+		return nil
+	}
+	opt, err := redis.ParseURL(os.Getenv("REDIS_CONN_STRING"))
+	if err != nil {
+		panic(err)
+	}
+	RDB = redis.NewClient(opt)
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	_, err = RDB.Ping(ctx).Result()
+	return err
+}
+
+func ParseRedisOption() *redis.Options {
+	opt, err := redis.ParseURL(os.Getenv("REDIS_CONN_STRING"))
+	if err != nil {
+		panic(err)
+	}
+	return opt
+}