GNU bug report logs - #52555
[RFC PATCH 0/3] Decentralized substitute distribution with ERIS

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Message #64 received at 52555 <at> debbugs.gnu.org (full text, mbox):

From: Maxime Devos <maximedevos <at> telenet.be>
To: pukkamustard <pukkamustard <at> posteo.net>, 52555 <at> debbugs.gnu.org
Cc: ~pukkamustard/eris <at> lists.sr.ht
Subject: Re: [bug#52555] [RFC PATCH v2 4/5] publish: Add support for storing
 ERIS encoded blocks to IPFS.
Date: Sat, 29 Jan 2022 22:28:11 +0100

[Message part 1 (text/plain, inline)]

pukkamustard schreef op di 25-01-2022 om 19:22 [+0000]:
> +                    (let ((eris-urn _
> +                                    (eris-encode port
> +                                                 #:block-size
> +                                                 %eris-block-size-large
> +                                                 #:block-reducer
> +                                                 guix-eris-block-reducer)))
> +                      (uri->string eris-urn))))))))

IIUC (and quite probably I don't, because I've only being reading
things cursorly), eris-encode returns #false when the IPFS daemon is
down (because then guix-eris-block-reducer returns #false).

In that case, (uri->string eris-urn) = (uri->string #false) would
throw an exception:

scheme@(guile-user)> ((@ (web uri) uri->string) #false)
ice-9/boot-9.scm:1669:16: In procedure raise-exception:
In procedure struct-vtable: Wrong type argument in position 1
(expecting struct): #f

Entering a new prompt.  Type `,bt' for a backtrace or `,q' to continue.
scheme@(guile-user) [1]> ,bt
In web/uri.scm:
   336:17  1 (uri->string #f #:include-fragment? _)
In ice-9/boot-9.scm:
  1669:16  0 (raise-exception _ #:continuable? _)

Greetings,
Maxime.

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