Imported Upstream version 2.5.1

[scm/test.git] / errors / types.go

diff --git a/errors/types.go b/errors/types.go
index b7253fa..d032454 100644 (file)
--- a/errors/types.go
+++ b/errors/types.go
@@ -127,6 +127,20 @@ func IsDownloadDeclinedError(err error) bool {
        return false
 }
 
+// IsDownloadDeclinedError indicates that the upload operation failed because of
+// an HTTP 422 response code.
+func IsUnprocessableEntityError(err error) bool {
+       if e, ok := err.(interface {
+               UnprocessableEntityError() bool
+       }); ok {
+               return e.UnprocessableEntityError()
+       }
+       if parent := parentOf(err); parent != nil {
+               return IsUnprocessableEntityError(parent)
+       }
+       return false
+}
+
 // IsRetriableError indicates the low level transfer had an error but the
 // caller may retry the operation.
 func IsRetriableError(err error) bool {
@@ -321,6 +335,20 @@ func NewDownloadDeclinedError(err error, msg string) error {
        return downloadDeclinedError{newWrappedError(err, msg)}
 }
 
+// Definitions for IsUnprocessableEntityError()
+
+type unprocessableEntityError struct {
+       *wrappedError
+}
+
+func (e unprocessableEntityError) UnprocessableEntityError() bool {
+       return true
+}
+
+func NewUnprocessableEntityError(err error) error {
+       return unprocessableEntityError{newWrappedError(err, "")}
+}
+
 // Definitions for IsRetriableError()
 
 type retriableError struct {