substitute: Retry nar download upon networking error.

This allows ‘guix substitute’ to gracefully handle errors like:

  TLS error in procedure 'write_to_session_record_port': Error in the push function

instead of exiting (“`guix substitute' died unexpectedly”).

* guix/scripts/substitute.scm (download-nar)[try-fetch]: Catch
‘network-error?’ too.

Reported-by: Ada Stevenson <adanskana@gmail.com>
Change-Id: I91b92183b0165832645ee37d50c13445f9322525
This commit is contained in:
Ludovic Courtès 2024-03-29 15:58:42 +01:00
parent 80a135d64b
commit ddc9d66f2b
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GPG Key ID: 090B11993D9AEBB5
1 changed files with 4 additions and 2 deletions

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@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013-2023 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2013-2024 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2014 Nikita Karetnikov <nikita@karetnikov.org>
;;; Copyright © 2018 Kyle Meyer <kyle@kyleam.com>
;;; Copyright © 2020 Christopher Baines <mail@cbaines.net>
@ -494,7 +494,9 @@ STATUS-PORT."
(define (try-fetch choices)
(match choices
(((uri compression file-size) rest ...)
(guard (c ((and (pair? rest) (http-get-error? c))
(guard (c ((and (pair? rest)
(or (http-get-error? c)
(network-error? c)))
(warning (G_ "download from '~a' failed, trying next URL~%")
(uri->string uri))
(try-fetch rest)))