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services: agetty: Explicitly depend on (gnu build linux-boot).

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* gnu/services/base.scm (default-serial-port): Wrap in
'with-imported-modules'.
This commit is contained in:
Ludovic Courtès 2019-10-06 12:01:24 +02:00
parent 1994422752
commit 62c2217570
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1 changed files with 32 additions and 30 deletions
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62
gnu/services/base.scm
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@ -939,36 +939,38 @@ (define-record-type* <agetty-configuration>
(define (default-serial-port)
"Return a gexp that determines a reasonable default serial port
to use as the tty. This is primarily useful for headless systems."
#~(begin
;; console=device,options
;; device: can be tty0, ttyS0, lp0, ttyUSB0 (serial).
;; options: BBBBPNF. P n|o|e, N number of bits,
;; F flow control (r RTS)
(let* ((not-comma (char-set-complement (char-set #\,)))
(command (linux-command-line))
(agetty-specs (find-long-options "agetty.tty" command))
(console-specs (filter (lambda (spec)
(and (string-prefix? "tty" spec)
(not (or
(string-prefix? "tty0" spec)
(string-prefix? "tty1" spec)
(string-prefix? "tty2" spec)
(string-prefix? "tty3" spec)
(string-prefix? "tty4" spec)
(string-prefix? "tty5" spec)
(string-prefix? "tty6" spec)
(string-prefix? "tty7" spec)
(string-prefix? "tty8" spec)
(string-prefix? "tty9" spec)))))
(find-long-options "console" command)))
(specs (append agetty-specs console-specs)))
(match specs
(() #f)
((spec _ ...)
;; Extract device name from first spec.
(match (string-tokenize spec not-comma)
((device-name _ ...)
device-name)))))))
(with-imported-modules (source-module-closure
'((gnu build linux-boot))) ;for 'find-long-options'
#~(begin
;; console=device,options
;; device: can be tty0, ttyS0, lp0, ttyUSB0 (serial).
;; options: BBBBPNF. P n|o|e, N number of bits,
;; F flow control (r RTS)
(let* ((not-comma (char-set-complement (char-set #\,)))
(command (linux-command-line))
(agetty-specs (find-long-options "agetty.tty" command))
(console-specs (filter (lambda (spec)
(and (string-prefix? "tty" spec)
(not (or
(string-prefix? "tty0" spec)
(string-prefix? "tty1" spec)
(string-prefix? "tty2" spec)
(string-prefix? "tty3" spec)
(string-prefix? "tty4" spec)
(string-prefix? "tty5" spec)
(string-prefix? "tty6" spec)
(string-prefix? "tty7" spec)
(string-prefix? "tty8" spec)
(string-prefix? "tty9" spec)))))
(find-long-options "console" command)))
(specs (append agetty-specs console-specs)))
(match specs
(() #f)
((spec _ ...)
;; Extract device name from first spec.
(match (string-tokenize spec not-comma)
((device-name _ ...)
device-name))))))))
(define agetty-shepherd-service
(match-lambda