offload: Adjust default 'max-silent-time' value of 'open-ssh-session'.

* guix/scripts/offload.scm (open-ssh-session): Have 'max-silent-time'
default to #f rather than -1, which is not a valid timeout value.
Adjust body accordingly.
This commit is contained in:
Ludovic Courtès 2020-10-25 00:20:12 +02:00
parent d3f02752b5
commit c9278dc9c1
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@ -197,8 +197,10 @@ (define (private-key-from-file* file)
private key from '~a': ~a")
file str)))))
(define* (open-ssh-session machine #:optional (max-silent-time -1))
"Open an SSH session for MACHINE and return it. Throw an error on failure."
(define* (open-ssh-session machine #:optional max-silent-time)
"Open an SSH session for MACHINE and return it. Throw an error on failure.
When MAX-SILENT-TIME is true, it must be a positive integer denoting the
number of seconds after which the connection times out."
(let ((private (private-key-from-file* (build-machine-private-key machine)))
(public (public-key-from-file
(string-append (build-machine-private-key machine)
@ -235,9 +237,10 @@ (define* (open-ssh-session machine #:optional (max-silent-time -1))
(leave (G_ "SSH public key authentication failed for '~a': ~a~%")
(build-machine-name machine) (get-error session))))
;; From then on use MAX-SILENT-TIME as the absolute timeout when
;; reading from or write to a channel for this session.
(session-set! session 'timeout max-silent-time)
(when max-silent-time
;; From then on use MAX-SILENT-TIME as the absolute timeout when
;; reading from or write to a channel for this session.
(session-set! session 'timeout max-silent-time))
session)
(x