unofficial mirror of guix-patches@gnu.org 
 help / color / mirror / code / Atom feed
From: Maxim Cournoyer <maxim.cournoyer@gmail.com>
To: "Ludovic Courtès" <ludo@gnu.org>
Cc: 43627@debbugs.gnu.org
Subject: [bug#43627] [PATCH core-updates]: Add a 'append-separator?' field to the <search-path-specification> record.
Date: Sun, 08 Nov 2020 00:49:32 -0500	[thread overview]
Message-ID: <87h7q0iej7.fsf@gmail.com> (raw)
In-Reply-To: <87lffjlv0t.fsf@gnu.org> ("Ludovic Courtès"'s message of "Mon, 02 Nov 2020 14:59:14 +0100")

Hi Ludovic,

Ludovic Courtès <ludo@gnu.org> writes:

> Hi Maxim,
>
> Apologies for not following up earlier on this one…

No worries!

> Maxim Cournoyer <maxim.cournoyer@gmail.com> skribis:
>
>> Ludovic Courtès <ludo@gnu.org> writes:
>>
>>> Hi,
>>>
>>> Maxim Cournoyer <maxim.cournoyer@gmail.com> skribis:
>>>
>>>> These three commits extend our search-path-specification record with a
>>>> new field, that can be used to produce a trailing separator, which can
>>>> be useful at least with Emacs (I can think of at least another place
>>>> where it could be used: the INFOPATH variable).
>>>>
>>>> It was motivated to allow defining the Emacs search path in a more
>>>> robust way.
>>>
>>> I’m skeptical since we have only one (or two?) use cases.  I think we
>>> should weigh the added complexity, both in terms of implementation and
>>> of semantic clarity, compared to reduced complexity elsewhere.  It seems
>>> to me that the costs outweigh the benefits here.
>>
>> I too was skeptical at first (which explains why this commit was not
>> submitted for inclusion for 3 years :-)), but recent events surrounding
>> emacs-next and the bump to Emacs 27 have put its value back into light.
>
> Do you know if there are other use cases than Emacs for this?

The three environment variables that I know that make use of it in this
way are EMACSLOADPATH, INFOPATH and MANPATH.  There may be others, but
it's hard to search for that.

> I vaguely remember that ‘EMACSLOADPATH’ unusual handling of the empty
> entry is why we didn’t have it in ‘native-search-paths’ initially, and
> why Alex Kost had come up with a different mechanism instead.

I'm not sure what this was about, but if there was an issue with using
EMACSLOADPATH, I think we would have found out by now :-).

Thanks,

Maxim




  reply	other threads:[~2020-11-08  5:50 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-26  6:11 [bug#43627] [PATCH core-updates]: Add a 'append-separator?' field to the <search-path-specification> record Maxim Cournoyer
2020-09-26  6:14 ` [bug#43627] [PATCH core-updates 1/3] guix: Add an append-separator? " Maxim Cournoyer
2020-09-26  6:14   ` [bug#43627] [PATCH core-updates 2/3] gnu: emacs: Use the new append-separator? option to define its search path Maxim Cournoyer
2020-09-26  6:14   ` [bug#43627] [PATCH core-updates 3/3] Revert "emacs-build-system: Ensure the core libraries appear last in the load path." Maxim Cournoyer
2020-09-27 19:01 ` [bug#43627] [PATCH core-updates]: Add a 'append-separator?' field to the <search-path-specification> record Ludovic Courtès
2020-10-03 21:22   ` Maxim Cournoyer
2020-11-02 13:59     ` Ludovic Courtès
2020-11-08  5:49       ` Maxim Cournoyer [this message]
2021-03-30 15:51 ` [bug#43627] [PATCH core-updates v2 1/2] guix: Add an append-separator? " Maxim Cournoyer
2021-03-30 15:51   ` [bug#43627] [PATCH core-updates v2 2/2] gnu: emacs: Use the new append-separator? option to define its search path Maxim Cournoyer
2021-04-10 20:42   ` [bug#43627] [PATCH core-updates v2 1/2] guix: Add an append-separator? field to the <search-path-specification> record Ludovic Courtès
2021-05-20 14:24     ` bug#43627: " Maxim Cournoyer
2021-03-30 18:41 ` [bug#43627] [PATCH] gnu: emacs: Wrap EMACSLOADPATH Leo Prikler

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://guix.gnu.org/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=87h7q0iej7.fsf@gmail.com \
    --to=maxim.cournoyer@gmail.com \
    --cc=43627@debbugs.gnu.org \
    --cc=ludo@gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/guix.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).