GNU bug report logs - #56114
Guix does not have a documented general and practical procedure for lowering a single lowerable object to the /gnu/store/... string.

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From: Ludovic Courtès <ludo <at> gnu.org>
To: zimoun <zimon.toutoune <at> gmail.com>
Cc: Maxime Devos <maximedevos <at> telenet.be>, 56114 <at> debbugs.gnu.org
Subject: bug#56114: Guix does not have a documented general and practical procedure for lowering a single lowerable object to the /gnu/store/... string.
Date: Tue, 05 Jul 2022 09:57:19 +0200

Hi,

zimoun <zimon.toutoune <at> gmail.com> skribis:

> My comment was about an unrelated thing.

I don’t take comments about unrelated things.  ;-)

> Well, I do not use every day G-exp nor ’plain-file’ and the like.  The
> interface appears to me unexpected each time I use it but hey I can
> live with it. :-) However, the documentation (or docstring) does not
> appear clear, each time I have my «aaah right!» moment.

[...]

> it is hard to guess beforehand that ’plain-file’ and ’mixed-text-file’
> do not return the same type of file-like object.

As someone who writes gexps and manipulates “file-like objects”, it
doesn’t matter whether a thing lowers to a derivation or to a plain
store item.  What matters is that you can insert it in a gexp and it’ll
do the right thing.  That’s why the docstrings don’t insist on that
difference.

Hope it makes sense!

Ludo’.

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