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-rw-r--r--guix/scripts/system.scm34
1 files changed, 13 insertions, 21 deletions
diff --git a/guix/scripts/system.scm b/guix/scripts/system.scm
index b15bb8bb0d..1b64e6fb92 100644
--- a/guix/scripts/system.scm
+++ b/guix/scripts/system.scm
@@ -487,26 +487,15 @@ Build the operating system declared in FILE according to ACTION.\n"))
;;;
(define (guix-system . args)
- (define (parse-options)
- ;; Return the alist of option values.
- (append (parse-options-from args)
- (parse-options-from (environment-build-options))))
-
- (define (parse-options-from args)
- ;; Actual parsing takes place here.
- (args-fold* args %options
- (lambda (opt name arg result)
- (leave (_ "~A: unrecognized option~%") name))
- (lambda (arg result)
- (if (assoc-ref result 'action)
- (alist-cons 'argument arg result)
- (let ((action (string->symbol arg)))
- (case action
- ((build vm vm-image disk-image reconfigure init)
- (alist-cons 'action action result))
- (else (leave (_ "~a: unknown action~%")
- action))))))
- %default-options))
+ (define (parse-sub-command arg result)
+ ;; Parse sub-command ARG and augment RESULT accordingly.
+ (if (assoc-ref result 'action)
+ (alist-cons 'argument arg result)
+ (let ((action (string->symbol arg)))
+ (case action
+ ((build vm vm-image disk-image reconfigure init)
+ (alist-cons 'action action result))
+ (else (leave (_ "~a: unknown action~%") action))))))
(define (match-pair car)
;; Return a procedure that matches a pair with CAR.
@@ -534,7 +523,10 @@ Build the operating system declared in FILE according to ACTION.\n"))
args))
(with-error-handling
- (let* ((opts (parse-options))
+ (let* ((opts (parse-command-line args %options
+ (list %default-options)
+ #:argument-handler
+ parse-sub-command))
(args (option-arguments opts))
(file (first args))
(action (assoc-ref opts 'action))