GNU bug report logs - #40731
[PATCH] Make emacsclient fail if --eval is used and no Emacs server connection established

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Message #8 received at 40731 <at> debbugs.gnu.org (full text, mbox):

From: Ilya Ostapyshyn <ilya.ostapyshyn <at> gmail.com>
To: 40731 <at> debbugs.gnu.org
Subject: bug#40731 Followup
Date: Wed, 22 Apr 2020 10:23:43 +0300

I have found a commit ~6fe661342a24edcaea255c3ba9a37613031554da~ which
addressed the same issue but in a different way.

However, the commit was reverted
(hash ~f198a5c5144fdded1400df6e8454e4b1b912c7de~) with the following message:

> The alternate editor may be Emacs, which is useful when you want to
> eval something in an existing Emacs (if it exists), or in a new Emacs
> if there's no server running.

I beg to differ. In fact, the --eval is not an optarg parameter, instead
it tells emacsclient to treat the whole FILE argument as lisp
expressions for evaluation.

Therefore, invoking
  emacsclient -a emacs -e '(emacs-version)'
just opens a file named "(emacs-version)" in a new instance of Emacs if
server is not running.

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