Re: How to use emacs as a "diff3 -m" compatible merge tool?

[Tassilo Horn <tsdh@gnu.org>]

Michael Heerdegen <michael_heerdegen@web.de> writes:

Hi Michael,

>> How do I print the merge buffer's contents to stdout?  And how can I
>> influence the exit code? (I could do (kill-emacs my-exit-code) but
>> would be more happy if I could also use the merge command with
>> emacsclient where I obviously don't want to kill emacs.)
>
> Never did something like this before.  I spent some time trying to
> understand the code in server.el however.  Seems `server-send-string'
> can be used for this.  Maybe search for the occurrences - e.g. in
> `server-edit-abort' (and the rest of server.el).
>
> The available "options" are explained in the doc of
> `server-process-filter' AFAIU.  I think you are interested in those
> "accepted by the client" - especially -print and -error.

Thanks, I will have a look.  Do I understand it correctly that your
answer is specifically about the emacsclient case?

If so, I'd rather tackle my usual sysadmin work "emacs -Q -l minimal.el
..." use-case first where (kill-emacs my-exit-code) would be ok.  But
how do I print buffer contents to emacs' stdout?

Bye,
Tassilo