configure external editor a script

[Uwe Brauer]

   > On Wed, Oct 19, 2016 at 2:14 PM, Uwe Brauer <oub at mat.ucm.es> wrote:


   > So if you set one of those environment variables before committing,
   > you can control the location of the temporary file. You could even do
   > that in an alias:

   >     [alias]
   >     uwecommit = !TMPDIR=$($HG root) $HG commit "$@"


Thanks very much. However there is a problem.

I have set
setenv EDITOR /opt/emacs25/bin/emacsclient
using tcsh.

Then hg commit -e
works as I described.

However when I run

 hg uwecommit -e 

/opt/emacs25/bin/emacsclient: can't find socket; have you started the server?
To start the server in Emacs, type "M-x server-start".
/opt/emacs25/bin/emacsclient: No socket or alternate editor.  Please use:

        --socket-name
        --server-file      (or environment variable EMACS_SERVER_FILE)
        --alternate-editor (or environment variable ALTERNATE_EDITOR)
abort: edit failed: emacsclient exited with status 1

That is absurd, why does hg commit -e work,
but hg uwecommit
or hg uwecommit -e

Gives this bizarre error?

Thanks

Uwe