feat: database backend add ssdb support

Change-Id: I054c5fc9b02f613601781de8613d684faa0ea7f2

database/ssdb/database.go

@@ -0,0 +1,62 @@
+package ssdb
+
+import (
+	"os"
+	"strconv"
+
+	"github.com/aptly-dev/aptly/database"
+	"github.com/seefan/gossdb/v2"
+	"github.com/seefan/gossdb/v2/conf"
+	"github.com/seefan/gossdb/v2/pool"
+)
+
+var defaultBufSize = 102400
+var defaultPoolSize = 1
+
+func internalOpen(cfg *conf.Config) (*pool.Client, error) {
+	ssdbLog("internalOpen")
+
+	cfg.ReadBufferSize = defaultBufSize
+	cfg.WriteBufferSize = defaultBufSize
+	cfg.MaxPoolSize = defaultPoolSize
+	cfg.PoolSize = defaultPoolSize
+	cfg.MinPoolSize = defaultPoolSize
+	cfg.MaxWaitSize = 100 * defaultPoolSize
+	cfg.RetryEnabled = true
+
+	//override by env
+	if os.Getenv("SSDB_READBUFFERSIZE") != "" {
+		readBufSize, err := strconv.Atoi(os.Getenv("SSDB_READBUFFERSIZE"))
+		if err != nil {
+			cfg.ReadBufferSize = readBufSize
+		}
+	}
+
+	if os.Getenv("SSDB_WRITEBUFFERSIZE") != "" {
+		writeBufSize, err := strconv.Atoi(os.Getenv("SSDB_WRITEBUFFERSIZE"))
+		if err != nil {
+			cfg.WriteBufferSize = writeBufSize
+		}
+	}
+
+	var cfgs = []*conf.Config{cfg}
+	err := gossdb.Start(cfgs...)
+	if err != nil {
+		return nil, err
+	}
+
+	return gossdb.NewClient()
+}
+
+func NewDB(cfg *conf.Config) (database.Storage, error) {
+	return &Storage{cfg: cfg}, nil
+}
+
+func NewOpenDB(cfg *conf.Config) (database.Storage, error) {
+	db, err := NewDB(cfg)
+	if err != nil {
+		return nil, err
+	}
+
+	return db, db.Open()
+}