GNU bug report logs - #64976
guix build: error: invalid character `~' in name

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: nigko <nigko.yerden <at> gmail.com>
To: bug-guix <at> gnu.org
Subject: guix build: error: invalid character `~' in name
Date: Mon, 31 Jul 2023 18:20:46 +0500

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

Hello,

When running "guix build -f alps.scm" where alps.scm uses url-fetch with 
(uri 
"https://exa.phys.s.u-tokyo.ac.jp/archive/MateriApps/src/alps_20220304~r7871.orig.tar.gz") 
the following error occurs

guix build: error: invalid character `~' in name 
'alps_20220304~r7871.orig.tar.gz.drv'

Bug was noted at
    repository URL: https://git.savannah.gnu.org/git/guix.git
    commit: c173819c8e5235ce02d60b79bd88b10023a7c614
    branch: master

[alps.scm (text/x-scheme, attachment)]

Message #10 received at 64976-done <at> debbugs.gnu.org (full text, mbox):

From: Tobias Geerinckx-Rice <me <at> tobias.gr>
To: 64976-done <at> debbugs.gnu.org
Subject: Re: guix build: error: invalid character `~' in name
Date: Fri, 04 Aug 2023 21:55:16 +0200

Certain characters are not allowed in store item[0] names.  This 
restriction was inherited verbatim[1] from Nix.

As such there's no bug here, although you could start a separate 
discussion about relaxing these restrictions if you like.

So what to do?  url-fetch defaults to the URL's basename as file name, 
but you can specify a different one.  For example:

  (source
    (method …)
    (uri …)
    (file-name (string-append name "-" version ".tar.gz"))
    (sha256 …))

Kind regards,

T G-R

Sent from a Web browser.  Excuse or enjoy my brevity.

[0]: Top-level file names under /gnu/store.
[1]: 
https://git.savannah.gnu.org/cgit/guix.git/tree/nix/libstore/store-api.cc#n58

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