[Emacs-diffs] emacs-26 69e8046: Don't signal error in vc-deduce-backend

[Andreas Schwab]

branch: emacs-26
commit 69e804669bacfef05c1ecdcd3f664dd486273db4
Author: Andreas Schwab <address@hidden>
Commit: Andreas Schwab <address@hidden>

    Don't signal error in vc-deduce-backend
    
    * lisp/vc/vc.el (vc-deduce-backend): Return nil if
    vc-responsible-backend signals an error.
---
 lisp/vc/vc.el | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lisp/vc/vc.el b/lisp/vc/vc.el
index 6516c91..e767dea 100644
--- a/lisp/vc/vc.el
+++ b/lisp/vc/vc.el
@@ -996,7 +996,9 @@ Within directories, only files already under version 
control are noticed."
        ((derived-mode-p 'diff-mode)     diff-vc-backend)
         ;; Maybe we could even use comint-mode rather than shell-mode?
        ((derived-mode-p 'dired-mode 'shell-mode 'compilation-mode)
-        (vc-responsible-backend default-directory))
+        (condition-case nil
+             (vc-responsible-backend default-directory)
+           (error nil)))
        (vc-mode (vc-backend buffer-file-name))))
 
 (declare-function vc-dir-current-file "vc-dir" ())