kvdb: add sqlite

kvdb/kvdb_no_sqlite.go

@@ -0,0 +1,25 @@
+//go:build !kvdb_sqlite || (windows && (arm || 386)) || (linux && (ppc64 || mips || mipsle || mips64))
+
+package kvdb
+
+import (
+	"fmt"
+	"runtime"
+
+	"github.com/btcsuite/btcwallet/walletdb"
+)
+
+var errSqliteNotAvailable = fmt.Errorf("sqlite backend not available either "+
+	"due to the `kvdb_sqlite` build tag not being set, or due to this "+
+	"OS(%s) and/or architecture(%s) not being supported", runtime.GOOS,
+	runtime.GOARCH)
+
+// SqliteBackend is conditionally set to false when the kvdb_sqlite build tag is
+// not defined. This will allow testing of other database backends.
+const SqliteBackend = false
+
+// StartSqliteTestBackend is a stub returning nil, and errSqliteNotAvailable
+// error.
+func StartSqliteTestBackend(path, name, table string) (walletdb.DB, error) {
+	return nil, errSqliteNotAvailable
+}