[emacs-berlin] `server-eval-at' turns out to be pretty useful...

[Grant Rettke]

Forgot to share this is what it does on my machine:

---
emacsclient --socket-name="/Users/gcr/server-sockets/emacs.sock" --eval "(+
1 1)"
OK...

-emacs-pid 9230
-print 2
---
emacsclient --socket-name="/Users/gcr/server-sockets/emacs.sock" --eval
"emacs-version"
OK...

-emacs-pid 9230
-print "26.3"
---
emacsclient --socket-name="/Users/gcr/server-sockets/emacs.sock" --eval
'(with-current-buffer "*scratch*" (insert "Hello scratch buffer"))'
OK...

-emacs-pid 9230
-print nil
---

Want to bet that it is because I'm on Emacs 26?

On Fri, Apr 2, 2021 at 2:37 PM Grant Rettke <grant at wisdomandwonder.com>
wrote:

> My computer is trying to drive insane. That is what is happening here. And
> it is working.
>
> It has to be working wrong on my machine.
>
> Thanks for sharing that Til.
>
> On Fri, Apr 2, 2021 at 7:09 AM Tilmann Singer <tils at tils.net> wrote:
>
>> I might be missing something obvious, but what exactly is it that
>> emacsclient can not do? With a running Emacs instance in which
>> (server-start) has been called before, the following commands on a
>> terminal with the bash shell work out of the box for me:
>>
>> $ emacsclient -e "(+ 1 1)"
>> 2
>>
>> $ printf "How many is binary? $(emacsclient -e '(+ 1 1)')\n"
>> How many is binary? 2
>>
>> $ emacsclient -e 'emacs-version'
>> "27.2"
>>
>> $ emacsclient -e '(with-current-buffer "*scratch*" (insert "Hello scratch
>> buffer"))'
>> nil
>> => Text was inserted into buffer *scratch*
>>
>>
>> At least on this (arch) linux machine, the default server-socket-dir of
>> "/run/user/1000/emacs" seems to be working fine.
>>
>>
>> Til
>>
>
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