bug#27511: 26.0.50; emacsclient requires file argument

[James Nguyen]

@Noam
I’d like it to switch to the scratch buffer if anything and to create a new one 
if it doesn’t exist. I should be able to jigger something up with the —eval 
option on emacsclient though.

Thanks.

@Ken

Why would you find it surprising? Personally, I like the DWIM style of many 
emacs commands. If I ever type ‘emacsclient’ and press <RET>, DWIM suggests I’m 
trying to connect to an instance of an Emacs server.

I don’t think I’d ever expect an error message to show up in that case. Imagine 
typing ‘vim’ and being forced to specify a file. (It’s not lost on my you’ve 
indicated they have separate purposes.)

At the very least, connecting to the server and doing nothing (similar to what 
Noam posted a few messages back) should be similar in spirit to what you’ve 
just said.


> On Jun 29, 2017, at 7:11 AM, Ken Brown <kbrown@cornell.edu> wrote:
> 
> On 6/29/2017 8:32 AM, npostavs@users.sourceforge.net wrote> James Nguyen 
> <jamesn@fastmail.com> writes:
>>> That snip you sent doesn’t work the way I want. It just opens the Gui
>>> Emacs up without opening a new scratch buffer.
>> Oh you want a *new* scratch buffer?  As in, you end up with multiple
>> scratch buffers if you run emacsclient several times?
>>> At this point, my takeaway is that we think this is 1. not a bug and
>>> 2. unlikely to have the default change (emacsclient behaving similarly
>>> in spirit to emacs)
>>> 
>>> I will just have to write a bash function that wraps emacsclient and
>>> check for the file arg (or lackof) myself.
>> Yeah, changing the defaults is tricky because you have to get a lot of
>> people to agree on what the new default should be.  Although it seems to
>> me that the current default of just printing an error message is not
>> especially useful for anyone...
> 
> The purpose of emacsclient is to contact an emacs server and give it some 
> action to perform (visit a file, open a new frame, evaluate some lisp, ...).  
> If you run emacsclient with no arguments, you're not specifying any action.  
> I can think of two possibilities for what emacsclient should do in that case: 
> (a) Silently do nothing.  (b) Print an error message.  I would find it very 
> surprising if emacsclient were to tell the server to create a new buffer when 
> I've specified no action.
> 
> Ken
>