Remove unused and duplicate error types

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)

registry/client/blob_writer.go

@@ -28,7 +28,7 @@ type httpBlobUpload struct {
 
 func (hbu *httpBlobUpload) handleErrorResponse(resp *http.Response) error {
 	if resp.StatusCode == http.StatusNotFound {
-		return &BlobUploadNotFoundError{Location: hbu.location}
+		return distribution.ErrBlobUploadUnknown
 	}
 	return handleErrorResponse(resp)
 }

registry/client/blob_writer_test.go

@@ -151,10 +151,8 @@ func TestUploadReadFrom(t *testing.T) {
 	if err == nil {
 		t.Fatalf("Expected error when not found")
 	}
-	if blobErr, ok := err.(*BlobUploadNotFoundError); !ok {
-		t.Fatalf("Wrong error type %T: %s", err, err)
-	} else if expected := e + locationPath; blobErr.Location != expected {
-		t.Fatalf("Unexpected location: %s, expected %s", blobErr.Location, expected)
+	if err != distribution.ErrBlobUploadUnknown {
+		t.Fatalf("Wrong error thrown: %s, expected", err, distribution.ErrBlobUploadUnknown)
 	}
 
 	// 400 valid json

registry/client/errors.go

@@ -9,34 +9,6 @@ import (
 	"github.com/docker/distribution/registry/api/v2"
 )
 
-// BlobUploadNotFoundError is returned when making a blob upload operation against an
-// invalid blob upload location url.
-// This may be the result of using a cancelled, completed, or stale upload
-// location.
-type BlobUploadNotFoundError struct {
-	Location string
-}
-
-func (e *BlobUploadNotFoundError) Error() string {
-	return fmt.Sprintf("No blob upload found at Location: %s", e.Location)
-}
-
-// BlobUploadInvalidRangeError is returned when attempting to upload an image
-// blob chunk that is out of order.
-// This provides the known BlobSize and LastValidRange which can be used to
-// resume the upload.
-type BlobUploadInvalidRangeError struct {
-	Location       string
-	LastValidRange int
-	BlobSize       int
-}
-
-func (e *BlobUploadInvalidRangeError) Error() string {
-	return fmt.Sprintf(
-		"Invalid range provided for upload at Location: %s. Last Valid Range: %d, Blob Size: %d",
-		e.Location, e.LastValidRange, e.BlobSize)
-}
-
 // UnexpectedHTTPStatusError is returned when an unexpected HTTP status is
 // returned when making a registry api call.
 type UnexpectedHTTPStatusError struct {