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

[Grant Rettke]

---
/Applications/Emacs.app/Contents/MacOS/bin/emacsclient
--socket-name="/Users/gcr/server-sockets/emacs.sock" --eval 'emacs-version'
OK...

"26.3"
---

Oh gosh.

---
/usr/bin/emacsclient --version
OK...

emacsclient 22.1
---

Lol.

---
✔ gsmac:~> ll /usr/local/bin/emacs
OK...

lrwxr-xr-x 1 gcr admin gcr 44 2019-11-22 21:24 "/usr/local/bin/emacs" ->
"/Applications/Emacs.app/Contents/MacOS/Emacs"*
✔ gsmac:~> which emacsclient
OK...

/usr/bin/emacsclient
✔ gsmac:~> ll /usr/bin/emacsclient
OK...

-rwxr-xr-x 1 root wheel root 33k 2020-09-10 22:16 "/usr/bin/emacsclient"*
✔ gsmac:~>
---

The problem: I forgot to link to the newer emacsclient.

Thank you Til.

On Fri, Apr 2, 2021 at 3:47 PM Grant Rettke <grant at wisdomandwonder.com>
wrote:

> Here is how it works for me:
>
> ✔ gsmac:~/src/be2 [main|✚ 2]> emacsclient
> --socket-name="/Users/gcr/server-sockets/emacs.sock" --eval 'emacs-version'
> OK...
>
> -emacs-pid 9230
> -print "26.3"
> ✔ gsmac:~/src/be2 [main|✚ 2]> emacs --batch --eval "(progn (require
> 'server) (princ (server-eval-at \"/Users/gcr/server-sockets/emacs.sock\"
> 'emacs-version)))"
> OK...
>
> 26.3
> ✔ gsmac:~/src/be2 [main|✚ 2]>
>
> I just want the value 26.3 not the -emacs-pid and -print stuff.
>
> I can't wait to try this on v27.
>
> On Fri, Apr 2, 2021 at 3:24 PM Grant Rettke <grant at wisdomandwonder.com>
> wrote:
>
>> 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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