GNU bug report logs - #54977
29.0.50; Customising eshell-modules-list means you won't get new default entries

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From: Sean Whitton <spwhitton <at> spwhitton.name>
To: 54977 <at> debbugs.gnu.org
Subject: bug#54977: 29.0.50; Customising eshell-modules-list means you won't get new default entries
Date: Sat, 16 Apr 2022 13:55:22 -0700

Hello,

eshell-modules-list has two kinds of entries: truly optional modules
that the user has chosen to enable, and modules that are enabled by
default, and that the user is likely to want to remove from the list
only in unusual circumstances.

Suppose that you use the customisation interface to enable the
eshell-rebind module, and save the result in your init.  Now upstream
Emacs gains a new on-by-default module, e.g. the recently added
em-extpipe.  While everyone who hasn't customised eshell-modules-list
gets the new module automatically, you'll have to customise the variable
again, and you can't even just tick a box to add it, as with the other
truly optional modules, but must manually insert it at the end of the
list.  This is no good.

How about using two separate defcustoms for these two kinds of entry?

-- 
Sean Whitton

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