feat: add Go backend

server/internal/library/cache/cache.go

@@ -0,0 +1,58 @@
+// Package cache
+// @Link  https://github.com/bufanyun/hotgo
+// @Copyright  Copyright (c) 2023 HotGo CLI
+// @Author  Ms <133814250@qq.com>
+// @License  https://github.com/bufanyun/hotgo/blob/master/LICENSE
+package cache
+
+import (
+	"context"
+	"github.com/gogf/gf/v2/frame/g"
+	"github.com/gogf/gf/v2/os/gcache"
+	"github.com/gogf/gf/v2/os/gfile"
+	"hotgo/internal/library/cache/file"
+)
+
+// cache 缓存驱动
+var cache *gcache.Cache
+
+// Instance 缓存实例
+func Instance() *gcache.Cache {
+	if cache == nil {
+		panic("cache uninitialized.")
+	}
+	return cache
+}
+
+// SetAdapter 设置缓存适配器
+func SetAdapter(ctx context.Context) {
+	var adapter gcache.Adapter
+
+	switch g.Cfg().MustGet(ctx, "cache.adapter").String() {
+	case "redis":
+		adapter = gcache.NewAdapterRedis(g.Redis())
+	case "file":
+		fileDir := g.Cfg().MustGet(ctx, "cache.fileDir").String()
+		if fileDir == "" {
+			g.Log().Fatal(ctx, "file path must be configured for file caching.")
+			return
+		}
+
+		if !gfile.Exists(fileDir) {
+			if err := gfile.Mkdir(fileDir); err != nil {
+				g.Log().Fatalf(ctx, "failed to create the cache directory. procedure, err:%+v", err)
+				return
+			}
+		}
+		adapter = file.NewAdapterFile(fileDir)
+	default:
+		adapter = gcache.NewAdapterMemory()
+	}
+
+	// 数据库缓存，默认和通用缓冲驱动一致，如果你不想使用默认的，可以自行调整
+	g.DB().GetCache().SetAdapter(adapter)
+
+	// 通用缓存
+	cache = gcache.New()
+	cache.SetAdapter(adapter)
+}