Return 400 but not 500 when request archive with wrong format (#17691)

services/archiver/archiver.go

@@ -39,6 +39,22 @@ type ArchiveRequest struct {
 // the way to 64.
 var shaRegex = regexp.MustCompile(`^[0-9a-f]{4,64}$`)
 
+// ErrUnknownArchiveFormat request archive format is not supported
+type ErrUnknownArchiveFormat struct {
+	RequestFormat string
+}
+
+// Error implements error
+func (err ErrUnknownArchiveFormat) Error() string {
+	return fmt.Sprintf("unknown format: %s", err.RequestFormat)
+}
+
+// Is implements error
+func (ErrUnknownArchiveFormat) Is(err error) bool {
+	_, ok := err.(ErrUnknownArchiveFormat)
+	return ok
+}
+
 // NewRequest creates an archival request, based on the URI.  The
 // resulting ArchiveRequest is suitable for being passed to ArchiveRepository()
 // if it's determined that the request still needs to be satisfied.
@@ -59,7 +75,7 @@ func NewRequest(repoID int64, repo *git.Repository, uri string) (*ArchiveRequest
 		ext = ".bundle"
 		r.Type = git.BUNDLE
 	default:
-		return nil, fmt.Errorf("Unknown format: %s", uri)
+		return nil, ErrUnknownArchiveFormat{RequestFormat: uri}
 	}
 
 	r.refName = strings.TrimSuffix(uri, ext)

services/archiver/archiver_test.go

@@ -5,6 +5,7 @@
 package archiver
 
 import (
+	"errors"
 	"path/filepath"
 	"testing"
 	"time"
@@ -19,10 +20,6 @@ func TestMain(m *testing.M) {
 	unittest.MainTest(m, filepath.Join("..", ".."))
 }
 
-func waitForCount(t *testing.T, num int) {
-
-}
-
 func TestArchive_Basic(t *testing.T) {
 	assert.NoError(t, unittest.PrepareTestDatabase())
 
@@ -83,11 +80,8 @@ func TestArchive_Basic(t *testing.T) {
 	inFlight[2] = secondReq
 
 	ArchiveRepository(zipReq)
-	waitForCount(t, 1)
 	ArchiveRepository(tgzReq)
-	waitForCount(t, 2)
 	ArchiveRepository(secondReq)
-	waitForCount(t, 3)
 
 	// Make sure sending an unprocessed request through doesn't affect the queue
 	// count.
@@ -132,3 +126,8 @@ func TestArchive_Basic(t *testing.T) {
 	assert.NotEqual(t, zipReq.GetArchiveName(), tgzReq.GetArchiveName())
 	assert.NotEqual(t, zipReq.GetArchiveName(), secondReq.GetArchiveName())
 }
+
+func TestErrUnknownArchiveFormat(t *testing.T) {
+	var err = ErrUnknownArchiveFormat{RequestFormat: "master"}
+	assert.True(t, errors.Is(err, ErrUnknownArchiveFormat{}))
+}