Checkpoint

dataset/error.go

@@ -0,0 +1,25 @@
+package dataset
+
+import (
+	"errors"
+	"fmt"
+	"os"
+
+	"github.com/mjl-/bstore"
+)
+
+type ErrNotExist struct {
+	Object string
+	ID     int64
+}
+
+func (err ErrNotExist) Error() string {
+	return fmt.Sprintf("storage: %s not found", err.Object)
+}
+
+func IsNotExist(err error) bool {
+	if err == nil {
+		return false
+	}
+	return os.IsNotExist(err) || errors.Is(err, ErrNotExist{}) || errors.Is(err, bstore.ErrAbsent)
+}