diff options
| -rw-r--r-- | guix/ui.scm | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/guix/ui.scm b/guix/ui.scm index 9bab7c51dd..372733c243 100644 --- a/guix/ui.scm +++ b/guix/ui.scm @@ -246,6 +246,23 @@ General help using GNU software: <http://www.gnu.org/gethelp/>")) (append args (list link)) errno)))))) +(set! copy-file + ;; Note: here we use 'set!', not #:replace, because UIs typically use + ;; 'copy-recursively', which doesn't use (guix ui). + (let ((real-copy-file (@ (guile) copy-file))) + (lambda (source target) + "This is a 'copy-file' replacement that provides proper error reporting." + (catch 'system-error + (lambda () + (real-copy-file source target)) + (lambda (key proc fmt args errno) + ;; Augment the FMT and ARGS with information about TARGET (this + ;; information is missing as of Guile 2.0.11, making the exception + ;; uninformative.) + (apply throw key proc "~A: ~S" + (list (strerror (car errno)) target) + (list errno))))))) + (define (string->number* str) "Like `string->number', but error out with an error message on failure." (or (string->number str) |