GNU bug report logs - #71789
29.3; Handling of nested directories of ELPA packages

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

From: Xiyue Deng <manphiz <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 29.3; Handling of nested directories of ELPA packages
Date: Wed, 26 Jun 2024 16:25:12 -0700

Hi,

I'm opening a bug to follow up the discussion at [1].  Given an ELPA
package `elpafoo' that contains another directory `elpabar' that also
holds source files, e.g. like the structure below:

,----
| ~/.config/emacs/elpa/elpafoo/
| ~/.config/emacs/elpa/elpafoo/elpafoo.el
| ~/.config/emacs/elpa/elpafoo/elpabar
| ~/.config/emacs/elpa/elpafoo/elpabar/elpabar.el
`----

When installing through package.el, both elpafoo.el and
elpabar/elpabar.el will be byte-compiled, but only the root source path
`~/.config/emacs/elpa/elpafoo' is added to `load-path', without any of
the nested directories.

I wonder whether this is the intended behavior regarding `load-path'
handling.  If nested directories are added, it has the advantage to
allow more fine-grained source organization; as a downside, it may
unnecessarily add more unneeded stuff and processing overhead (as
Michael pointed out at [2]), and potentially break existing code,
e.g. auctex, which seems to vendor stuff in the `style/' directories but
not loaded so it's not causing any trouble yet.

So I wonder what is the stance of the Emacs maintainer on this subject,
or whether this is documented anywhere.  Also one more step: whether
there is a recommended layout for source code organization for ELPA
packages.

[1] https://lists.gnu.org/archive/html/emacs-devel/2024-05/msg00658.html
[2] https://lists.gnu.org/archive/html/emacs-devel/2024-05/msg01039.html



In GNU Emacs 29.3 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.38,
 cairo version 1.16.0) of 2024-05-20, modified by Debian built on sbuild
Windowing system distributor 'The X.Org Foundation', version 11.0.12101007
System Description: Debian GNU/Linux 12 (bookworm)

Configured using:
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 --sharedstatedir=/var/lib --libexecdir=/usr/libexec
 --localstatedir=/var/lib --infodir=/usr/share/info
 --mandir=/usr/share/man --with-libsystemd --with-pop=yes
 --enable-locallisppath=/etc/emacs:/usr/local/share/emacs/29.3/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/29.3/site-lisp:/usr/share/emacs/site-lisp
 --with-sound=alsa --without-gconf --with-mailutils
 --with-native-compilation --build x86_64-linux-gnu --prefix=/usr
 --sharedstatedir=/var/lib --libexecdir=/usr/libexec
 --localstatedir=/var/lib --infodir=/usr/share/info
 --mandir=/usr/share/man --with-libsystemd --with-pop=yes
 --enable-locallisppath=/etc/emacs:/usr/local/share/emacs/29.3/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/29.3/site-lisp:/usr/share/emacs/site-lisp
 --with-sound=alsa --without-gconf --with-mailutils
 --with-native-compilation --with-cairo --with-x=yes
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 -Wformat -Werror=format-security -Wall' 'CPPFLAGS=-Wdate-time
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Configured features:
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JSON LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES
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Important settings:
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Major mode: Lisp Interaction

Minor modes in effect:
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Load-path shadows:
/usr/share/emacs/site-lisp/elpa/debian-el-37.13/debian-autoloads hides /usr/share/emacs/site-lisp/elpa/gnuplot-0.8.1/debian-autoloads
/usr/share/emacs/site-lisp/elpa/magit-3.3.0/magit-section hides /usr/share/emacs/site-lisp/elpa/magit-section-3.3.0/magit-section

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Memory information:
((conses 16 4151836 235820)
 (symbols 48 38894 35)
 (strings 32 186143 40188)
 (string-bytes 1 6165556)
 (vectors 16 121009)
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 (intervals 56 274782 3076)
 (buffers 984 145))

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