kvdb: add sqlite

kvdb/kvdb_sqlite.go

@@ -0,0 +1,39 @@
+//go:build kvdb_sqlite && !(windows && (arm || 386)) && !(linux && (ppc64 || mips || mipsle || mips64))
+
+package kvdb
+
+import (
+	"context"
+	"os"
+	"time"
+
+	"github.com/btcsuite/btcwallet/walletdb"
+	"github.com/lightningnetwork/lnd/kvdb/sqlbase"
+	"github.com/lightningnetwork/lnd/kvdb/sqlite"
+)
+
+const (
+	// SqliteBackend is conditionally set to true when the kvdb_sqlite build
+	// tag is defined. This will allow testing of other database backends.
+	SqliteBackend = true
+
+	testMaxConnections = 50
+)
+
+// StartSqliteTestBackend starts a sqlite backed wallet.DB instance
+func StartSqliteTestBackend(path, name, table string) (walletdb.DB, error) {
+	if !fileExists(path) {
+		err := os.Mkdir(path, 0700)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	sqlbase.Init(testMaxConnections)
+	return sqlite.NewSqliteBackend(
+		context.Background(), &sqlite.Config{
+			Timeout:     time.Second * 30,
+			BusyTimeout: time.Second * 5,
+		}, path, name, table,
+	)
+}