From: "Ludovic Courtès" <ludovic.courtes@inria.fr>
To: Simon Tournier <zimon.toutoune@gmail.com>
Cc: 70339@debbugs.gnu.org
Subject: bug#70339: Constructing hg-fetch fixed-output derivation requires Mercurial
Date: Fri, 12 Apr 2024 11:30:00 +0200 [thread overview]
Message-ID: <87r0fbexnr.fsf@gnu.org> (raw)
In-Reply-To: <87h6g9w5rt.fsf@gmail.com> (Simon Tournier's message of "Wed, 10 Apr 2024 18:18:14 +0200")
Hello!
Simon Tournier <zimon.toutoune@gmail.com> skribis:
> $ guix build -S -d hg-commitsigs
> substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
> 3,7 MB will be downloaded:
> /gnu/store/6fya762sz5hjdj04vdn5g3v6zii6f11d-mercurial-6.2.2
> substituting /gnu/store/6fya762sz5hjdj04vdn5g3v6zii6f11d-mercurial-6.2.2...
> downloading from https://ci.guix.gnu.org/nar/lzip/6fya762sz5hjdj04vdn5g3v6zii6f11d-mercurial-6.2.2 ...
> mercurial-6.2.2 3.5MiB 529KiB/s 00:07 ▕██████████████████▏ 100.0%
>
> /gnu/store/pkb6zd9xfmxx6rsh4p7w3glh7xqg5sqy-hg-commitsigs-0.1.0-0.b53eb68-checkout.drv
>
>
> and it is unexpected.
That running ‘hg clone’ requires Mercurial isn’t totally unexpected to
me. :-)
> I think it comes from this part:
>
> (hg-fetch '#$(hg-reference-url ref)
> '#$(hg-reference-changeset ref)
> #$output
> #:hg-command (string-append #+hg "/bin/hg")))
>
> from ’hg-fetch’ in (guix hg-download). Here the #+hg is not required
> because just before there is:
>
> (set-path-environment-variable "PATH" '("bin")
> (match '#+inputs
> (((names dirs outputs ...) ...)
> dirs)))
Maybe, but one way or another, Mercurial is necessary.
Now, the ‘guix recover’ tool (or whatever you call it) you’re working on
could create a different fixed-output derivation producing the same
result but without using Mercurial; typically, the builder of that
derivation would download from SWH.
Does that make sense?
HTH,
Ludo’.
next prev parent reply other threads:[~2024-04-12 9:31 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-10 16:18 bug#70339: Constructing hg-fetch fixed-output derivation requires Mercurial Simon Tournier
2024-04-12 9:30 ` Ludovic Courtès [this message]
2024-04-12 12:42 ` Simon Tournier
2024-04-12 14:05 ` Ludovic Courtès
2024-04-22 0:22 ` Simon Tournier
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