Re: Questions about XDG_RUNTIME_DIR and server-socket-dir

[Phil Sainty <psainty@orcon.net.nz>]

On 3/02/19 7:01 PM, Eli Zaretskii wrote:
> The value of server-name can include leading directories, so I think
> you can already have what you want.  Right?

I don't see any current way of specifying the server-name via the
environment when running emacs, though?

For hopeful clarity, my requirement includes the situation where a
user has an init file containing (server-start) (let's say that's all
that it contains), and they run plain 'emacs' via the wrapper twice,
and should end up with two separate emacs instances, each running its
own server using a distinct non-conflicting socket.

The wrapper doesn't know whether their init file will start a server;
but if a server is started then it must not conflict with other Emacs
servers (created with or without the wrapper).

And if the user instead ran 'emacs --daemon=foo' via the wrapper twice,
then again there should be two non-conflicting 'foo' sockets.

Making the wrapper control TMPDIR achieves all this for previous
versions.

(If they ran 'emacs --daemon=/path/to/foo' twice then it's fine for
that to conflict.  It's just the default server-socket-dir that I'm
wanting to have environmental influence over.)


-Phil