diff options
Diffstat (limited to 'guix/scripts')
| -rwxr-xr-x | guix/scripts/substitute.scm | 35 |
1 files changed, 23 insertions, 12 deletions
diff --git a/guix/scripts/substitute.scm b/guix/scripts/substitute.scm index 0b27ebb0fc..3626832dda 100755 --- a/guix/scripts/substitute.scm +++ b/guix/scripts/substitute.scm @@ -481,18 +481,29 @@ STATUS-PORT." (leave (G_ "unsupported substitute URI scheme: ~a~%") (uri->string uri))))) - (let ((uri compression file-size - (narinfo-best-uri narinfo - #:fast-decompression? - %prefer-fast-decompression?))) - (unless print-build-trace? - (format (current-error-port) - (G_ "Downloading ~a...~%") (uri->string uri))) - - (let* ((raw download-size - ;; 'guix publish' without '--cache' doesn't specify a - ;; Content-Length, so DOWNLOAD-SIZE is #f in this case. - (fetch uri)) + (define (try-fetch choices) + (match choices + (((uri compression file-size) rest ...) + (guard (c ((and (pair? rest) (http-get-error? c)) + (warning (G_ "download from '~a' failed, trying next URL~%") + (uri->string uri)) + (try-fetch rest))) + (let ((port download-size (fetch uri))) + (unless print-build-trace? + (format (current-error-port) + (G_ "Downloading ~a...~%") (uri->string uri))) + (values port uri compression download-size)))) + (() + (leave (G_ "no valid nar URLs for ~a at ~a~%") + (narinfo-path narinfo) + (narinfo-uri-base narinfo))))) + + (let ((choices (narinfo-preferred-uris narinfo + #:fast-decompression? + %prefer-fast-decompression?))) + ;; 'guix publish' without '--cache' doesn't specify a Content-Length, so + ;; DOWNLOAD-SIZE is #f in this case. + (let* ((raw uri compression download-size (try-fetch choices)) (progress (let* ((dl-size (or download-size (and (equal? compression "none") |