Re: Making `eglot-server-programs' a custom variable?

[Philip Kaludercic <philipk@posteo.net>]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Philip Kaludercic <philipk@posteo.net>
>> Cc: jporterbugs@gmail.com,  arash@gnu.org,  emacs-devel@gnu.org,
>>   joaotavora@gmail.com
>> Date: Sun, 13 Nov 2022 00:20:35 +0000
>> 
>> > Under my proposal, the variable eglot-server-programs remains a
>> > defvar, and contains the baseline list of the servers.  To customize
>> > the list, users change the value of a separate user option, say,
>> > eglot-user-server-programs.  This user option's value is nil by
>> > default, and it allows users to specify both additions of servers to
>> > the baseline value of eglot-server-programs and removal of servers
>> > from that value.  
>> 
>> How would this look like?
>
> I don't understand what you are asking here.  How what will look like?

Err, the question doesn't make sense in retrospect, I should have
removed it before sending out my message.

>> >                   The :set function of eglot-user-server-programs then
>> > takes care of doing whatever is needed to make sure that the value of
>> > eglot-server-programs is modified according to
>> > eglot-user-server-programs's value when Eglot is started.
>> 
>> This I understand, but I don't see how this is preferable to a general
>> solution that doesn't require explicit support for any user option.
>
> What is the general solution you have in mind?  And what problems does
> that general solution solve?

That all user options containing lists can be modified, without each
user option containing lists explicitly accommodating the fact using
some other variable.