summaryrefslogtreecommitdiff
path: root/src/file-backend.lisp
diff options
context:
space:
mode:
Diffstat (limited to 'src/file-backend.lisp')
-rw-r--r--src/file-backend.lisp4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/file-backend.lisp b/src/file-backend.lisp
index 2bb8693..03e3ef7 100644
--- a/src/file-backend.lisp
+++ b/src/file-backend.lisp
@@ -43,7 +43,9 @@
(lambda (reference)
(let* ((base32 (bytes-to-base32-unpadded reference))
(file (merge-pathnames directory base32)))
- (alexandria:read-file-into-byte-vector file)))
+ (if (probe-file file)
+ (alexandria:read-file-into-byte-vector file)
+ (error 'missing-block :reference reference))))
output-function
(lambda (block reference)
(let* ((base32 (bytes-to-base32-unpadded reference))