02/02: deploy: Handle the '--system' command line option.

[guix-commits]

iyzsong pushed a commit to branch master
in repository guix.

commit 3c618b9894d167399b820642d011aed251cf4ba3
Author: 宋文武 <address@hidden>
Date:   Sat Jul 20 12:51:45 2019 +0800

    deploy: Handle the '--system' command line option.
    
    * guix/scripts/deploy.scm (show-help): Add help for '--system'.
    (%options): Add '-s' and '--system'.
    (guix-deploy): Parameterize %current-system.
---
 guix/scripts/deploy.scm | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/guix/scripts/deploy.scm b/guix/scripts/deploy.scm
index 3acd32e..52bba3f 100644
--- a/guix/scripts/deploy.scm
+++ b/guix/scripts/deploy.scm
@@ -23,6 +23,7 @@
   #:use-module (guix scripts build)
   #:use-module (guix store)
   #:use-module (guix ui)
+  #:use-module (guix utils)
   #:use-module (guix grafts)
   #:use-module (ice-9 format)
   #:use-module (srfi srfi-1)
@@ -41,6 +42,8 @@
 (define (show-help)
   (display (G_ "Usage: guix deploy [OPTION] FILE...
 Perform the deployment specified by FILE.\n"))
+  (display (G_ "
+  -s, --system=SYSTEM    attempt to build for SYSTEM--e.g., \"i686-linux\""))
   (show-build-options-help)
   (newline)
   (display (G_ "
@@ -55,10 +58,14 @@ Perform the deployment specified by FILE.\n"))
                  (lambda args
                    (show-help)
                    (exit 0)))
+         (option '(#\s "system") #t #f
+                 (lambda (opt name arg result)
+                   (alist-cons 'system arg
+                               (alist-delete 'system result eq?))))
          %standard-build-options))
 
 (define %default-options
-  '((system . ,(%current-system))
+  `((system . ,(%current-system))
     (substitutes? . #t)
     (build-hook? . #t)
     (graft? . #t)
@@ -81,6 +88,7 @@ Perform the deployment specified by FILE.\n"))
       (set-build-options-from-command-line store opts)
       (for-each (lambda (machine)
                   (info (G_ "deploying to ~a...") (machine-display-name 
machine))
-                  (parameterize ((%graft? (assq-ref opts 'graft?)))
+                  (parameterize ((%current-system (assq-ref opts 'system))
+                                 (%graft? (assq-ref opts 'graft?)))
                     (run-with-store store (deploy-machine machine))))
                 machines))))