Open an Emacs buffer when a command tries to open an editor in shell-mode

Question

I like to use Emacs\' shell mode, but it has a few deficiencies. One of those is that it\'s not smart enough to open a new buffer when a shell command tries to invoke an editor.

Answer 1

I wanted to do something similar for merging in an emacs shell via mercurial. Thanks to the posters here, i found the way. two steps:

1. add: (start-server) in your .emacs file (remember to load-file after your change)

2. in your hgrc:

   [merge-tools]
   emacs.executable = emacsclient
   emacs.premerge = False
   emacs.args = --eval "(ediff-merge-with-ancestor \"$local\" \"$other\" \"$base\" nil \"$output\")"