diff options
Diffstat (limited to 'guix/ssh.scm')
| -rw-r--r-- | guix/ssh.scm | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/guix/ssh.scm b/guix/ssh.scm index 9b5ca68894..90311127a1 100644 --- a/guix/ssh.scm +++ b/guix/ssh.scm @@ -98,16 +98,27 @@ specifies; otherwise use them. Throw an error on failure." (message (format #f (G_ "SSH connection to '~a' failed: ~a~%") host (get-error session)))))))))) -(define (remote-inferior session) - "Return a remote inferior for the given SESSION." - (let ((pipe (open-remote-pipe* session OPEN_BOTH - "guix" "repl" "-t" "machine"))) +(define* (remote-inferior session #:optional become-command) + "Return a remote inferior for the given SESSION. If BECOME-COMMAND is +given, use that to invoke the remote Guile REPL." + (let* ((repl-command (append (or become-command '()) + '("guix" "repl" "-t" "machine"))) + (pipe (apply open-remote-pipe* session OPEN_BOTH repl-command))) + ;; XXX: 'channel-get-exit-status' would be better here, but hangs if the + ;; process does succeed. This doesn't reflect the documentation, so it's + ;; possible that it's a bug in guile-ssh. + (when (eof-object? (peek-char pipe)) + (raise (condition + (&message + (message (format #f (G_ "failed to run '~{~a~^ ~}'") + repl-command)))))) (port->inferior pipe))) -(define (inferior-remote-eval exp session) +(define* (inferior-remote-eval exp session #:optional become-command) "Evaluate EXP in a new inferior running in SESSION, and close the inferior -right away." - (let ((inferior (remote-inferior session))) +right away. If BECOME-COMMAND is given, use that to invoke the remote Guile +REPL." + (let ((inferior (remote-inferior session become-command))) (dynamic-wind (const #t) (lambda () |