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|
#!@GUILE@ \
--debug -e main
!#
;;; rrepl.scm -- An example of RREPL usage.
;; Copyright (C) 2015 Artyom V. Poptsov <poptsov.artyom@gmail.com>
;;
;; This program is free software: you can redistribute it and/or
;; modify it under the terms of the GNU General Public License as
;; published by the Free Software Foundation, either version 3 of the
;; License, or (at your option) any later version.
;;
;; This program is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;; General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see
;; <http://www.gnu.org/licenses/>.
;;; Commentary:
;; A demo program that connects to a remote REPL (RREPL). For simplicity the
;; program uses ssh-agent for authentication.
;;; Code:
(use-modules (ice-9 getopt-long)
(ssh session)
(ssh auth)
(ssh dist))
(define (print-help-and-exit)
"Print information about program usage."
(display "\
Usage: rrepl.scm [options] <host>
Connect to a remote REPL (RREPL) using an ssh-agent for authentication.
Options:
--user, -u <user> User name.
--port, -p <port> SSH port number (default: 22)
--repl-port, -P <port> Gulie REPL port number (default: 37146)
--help, -h Print this message and exit.
")
(exit))
;;; Entry point
(define (main args)
"Entry point of the program."
(let* ((options-spec '((user (single-char #\u) (value #t))
(port (single-char #\p) (value #t))
(repl-port (single-char #\P) (value #t))
(help (single-char #\h) (value #f))))
(options (getopt-long args options-spec))
(user (option-ref options 'user (getenv "USER")))
(port (option-ref options 'port "22"))
(repl-port (option-ref options 'repl-port "37146"))
(help-needed? (option-ref options 'help #f))
(args (option-ref options '() #f)))
(and (or help-needed?
(not args)
(null? args))
(print-help-and-exit))
(let* ((host (car args))
(s (make-session #:user user
#:host host
#:port (string->number port)
#:log-verbosity 'nolog)))
(connect! s)
(userauth-agent! s)
(rrepl (make-node s (string->number repl-port)))
(exit 0))))
;;; rrepl.scm ends here.
|
