3
5
Fork 0
mirror of git://git.savannah.gnu.org/guix.git synced 2023-12-14 03:33:07 +01:00

guix system: Add '--derivation'.

* guix/scripts/system.scm (perform-action): Add #:derivations-only?
  parameter and honor it.
  (show-help, %options): Add '--derivation'.
  (guix-system): Pass #:derivations-only? to 'perform-action'.
* tests/guix-system.sh: Test it.
* doc/guix.texi (Invoking guix system): Document it.
This commit is contained in:
Ludovic Courtès 2015-09-19 11:14:42 +02:00
parent 23afe939a2
commit f3f427c2e9
3 changed files with 34 additions and 7 deletions

View file

@ -6916,6 +6916,11 @@ using the following command:
Attempt to build for @var{system} instead of the host's system type.
This works as per @command{guix build} (@pxref{Invoking guix build}).
@item --derivation
@itemx -d
Return the derivation file name of the given operating system without
building anything.
@item --image-size=@var{size}
For the @code{vm-image} and @code{disk-image} actions, create an image
of the given @var{size}. @var{size} may be a number of bytes, or it may

View file

@ -300,7 +300,7 @@ it atomically, and then run OS's activation script."
(system-disk-image os #:disk-image-size image-size))))
(define* (perform-action action os
#:key grub? dry-run?
#:key grub? dry-run? derivations-only?
use-substitutes? device target
image-size full-boot?
(mappings '()))
@ -308,7 +308,13 @@ it atomically, and then run OS's activation script."
the target devices for GRUB; TARGET is the target root directory; IMAGE-SIZE
is the size of the image to be built, for the 'vm-image' and 'disk-image'
actions. FULL-BOOT? is used for the 'vm' action; it determines whether to
boot directly to the kernel or to the bootloader."
boot directly to the kernel or to the bootloader.
When DERIVATIONS-ONLY? is true, print the derivation file name(s) without
building anything."
(define println
(cut format #t "~a~%" <>))
(mlet* %store-monad
((sys (system-derivation-for-action os action
#:image-size image-size
@ -322,14 +328,17 @@ boot directly to the kernel or to the bootloader."
(drvs -> (if (and grub? (memq action '(init reconfigure)))
(list sys grub grub.cfg)
(list sys)))
(% (maybe-build drvs #:dry-run? dry-run?
#:use-substitutes? use-substitutes?)))
(% (if derivations-only?
(return (for-each (compose println derivation-file-name)
drvs))
(maybe-build drvs #:dry-run? dry-run?
#:use-substitutes? use-substitutes?))))
(if dry-run?
(if (or dry-run? derivations-only?)
(return #f)
(begin
(for-each (cut format #t "~a~%" <>)
(map derivation->output-path drvs))
(for-each (compose println derivation->output-path)
drvs)
;; Make sure GRUB is accessible.
(when grub?
@ -382,6 +391,8 @@ Build the operating system declared in FILE according to ACTION.\n"))
init initialize a root file system to run GNU.\n"))
(show-build-options-help)
(display (_ "
-d, --derivation return the derivation of the given system"))
(display (_ "
--on-error=STRATEGY
apply STRATEGY when an error occurs while reading FILE"))
@ -425,6 +436,9 @@ Build the operating system declared in FILE according to ACTION.\n"))
(option '(#\V "version") #f #f
(lambda args
(show-version-and-exit "guix system")))
(option '(#\d "derivation") #f #f
(lambda (opt name arg result)
(alist-cons 'derivations-only? #t result)))
(option '("on-error") #t #f
(lambda (opt name arg result)
(alist-cons 'on-error (string->symbol arg)
@ -549,6 +563,8 @@ Build the operating system declared in FILE according to ACTION.\n"))
(set-guile-for-build (default-guile))
(perform-action action os
#:dry-run? dry?
#:derivations-only? (assoc-ref opts
'derivations-only?)
#:use-substitutes? (assoc-ref opts 'substitutes?)
#:image-size (assoc-ref opts 'image-size)
#:full-boot? (assoc-ref opts 'full-boot?)

View file

@ -132,6 +132,12 @@ EOF
make_user_config "users" "wheel"
guix system build "$tmpfile" -n # succeeds
guix system build "$tmpfile" -d # succeeds
guix system build "$tmpfile" -d | grep '\.drv$'
guix system vm "$tmpfile" -d # succeeds
guix system vm "$tmpfile" -d | grep '\.drv$'
make_user_config "group-that-does-not-exist" "users"
if guix system build "$tmpfile" -n 2> "$errorfile"
then false