Re: Tramp and VC integration: "calling user"

[Richard Stallman <rms@gnu.org>]

    (1) New file operation file-mine-p, returns true if the file is owned
	by the "calling user".  For non-special files, the calling user is
	the user who invoked Emacs.  For Tramp files, the calling user is
	the user logged into the remote host.

    (2) New file operation file-calling-user, returns the calling user, as
	defined in (1).

    (3) Augment the return value of file-remote-p to indicate the calling
	user.  The return value could be augmented to also indicate the
	remote host, if the file is remote.

#3 seems kludgy, so it shouldn't be that.  I prefer #1.