Files
mce/internal/common/redis.go
Victor_Jay 97adf54d6d fix: golangci-lint 零告警通过 (57→0) + gofumpt/goimports 全量格式化
## CI 修复 (P0/P1)

P0 — 编译阻塞:
  - interfaces.go: postUseCase ISP 接口移除不用的 Create/Update/Delete

P1 — 必须修复:
  - ST1000: 为 13 个包添加包注释 (common/config/model/service/...)
  - ST1005: redis_store.go 全部错误消息改为小写开头
  - errcheck (19处): defer Close()→闭包忽略, notifier.Create→_=, r.Run→检查error
  - errorlint (9处): switch-on-error→errors.Is 链, ==→errors.Is
  - ST1020/ST1022: 导出符号注释以符号名开头

P2 — 安全评审:
  - gosec (12处): G203/G301/G304/G306 添加 nolint 注释并附理由

P3 — 清理:
  - unused: 移除 hasUnicode/energyStore/current/energyAdminUseCase
  - gofumpt + goimports 全量格式化 (35+ 文件)
2026-06-22 02:27:35 +08:00

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package common
import (
"context"
"fmt"
"log"
"time"
"github.com/redis/go-redis/v9"
"metazone.cc/mce/internal/config"
)
// NewRedisClient 创建 Redis 客户端并尝试验证连接
// Redis 不可达时不返回错误,而是返回 clientgo-redis 自带自动重连),由调用方决定降级策略
func NewRedisClient(cfg config.RedisConfig) (*redis.Client, error) {
client := redis.NewClient(&redis.Options{
Addr: fmt.Sprintf("%s:%s", cfg.Host, cfg.Port),
Password: cfg.Password,
DB: cfg.DB,
DialTimeout: 1 * time.Second, // 连接超时降低(默认 5s配合 FallbackStore 快速降级
ReadTimeout: 1 * time.Second,
WriteTimeout: 1 * time.Second,
MaxRetries: 1, // 最多重试 1 次(默认 3 次),减少故障阻塞时间
PoolSize: 5, // 会话存储不需要大连接池(默认 10*GOMAXPROCS
})
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
if err := client.Ping(ctx).Err(); err != nil {
log.Printf("[Redis] 连接失败: %v将降级为内存存储", err)
return client, fmt.Errorf("redis 连接失败: %w", err)
}
return client, nil
}