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-rw-r--r--guix/scripts/system.scm178
1 files changed, 148 insertions, 30 deletions
diff --git a/guix/scripts/system.scm b/guix/scripts/system.scm
index 582027244c..345d8c3e5f 100644
--- a/guix/scripts/system.scm
+++ b/guix/scripts/system.scm
@@ -19,13 +19,20 @@
(define-module (guix scripts system)
#:use-module (guix ui)
#:use-module (guix store)
+ #:use-module (guix gexp)
#:use-module (guix derivations)
#:use-module (guix packages)
#:use-module (guix utils)
#:use-module (guix monads)
#:use-module (guix scripts build)
+ #:use-module (guix build utils)
+ #:use-module (guix build install)
+ #:use-module (gnu system)
#:use-module (gnu system vm)
+ #:use-module (gnu system grub)
+ #:use-module (gnu packages grub)
#:use-module (srfi srfi-1)
+ #:use-module (srfi srfi-26)
#:use-module (srfi srfi-37)
#:use-module (ice-9 match)
#:export (guix-system
@@ -63,6 +70,48 @@
(leave (_ "failed to load machine file '~a': ~s~%")
file args))))))
+(define* (copy-closure store item target
+ #:key (log-port (current-error-port)))
+ "Copy ITEM to the store under root directory TARGET and register it."
+ (let ((dest (string-append target item))
+ (refs (references store item)))
+ (format log-port "copying '~a'...~%" item)
+ (copy-recursively item dest
+ #:log (%make-void-port "w"))
+
+ ;; Register ITEM; as a side-effect, it resets timestamps, etc.
+ (unless (register-path item
+ #:prefix target
+ #:references refs)
+ (leave (_ "failed to register '~a' under '~a'~%")
+ item target))))
+
+(define* (install store os-dir target
+ #:key (log-port (current-output-port))
+ grub? grub.cfg device)
+ "Copy OS-DIR and its dependencies to directory TARGET. TARGET must be an
+absolute directory name since that's what 'guix-register' expects.
+
+When GRUB? is true, install GRUB on DEVICE, using GRUB.CFG."
+ (define to-copy
+ (let ((lst (delete-duplicates (cons os-dir (references store os-dir))
+ string=?)))
+ (topologically-sorted store lst)))
+
+ (if (string=? target "/")
+ (warning (_ "initializing the current root file system~%"))
+ ;; Copy items to the new store.
+ (for-each (cut copy-closure store <> target #:log-port log-port)
+ to-copy))
+
+ ;; Create a bunch of additional files.
+ (format log-port "populating '~a'...~%" target)
+ (populate-root-file-system target)
+
+ (when grub?
+ (unless (install-grub grub.cfg device target)
+ (leave (_ "failed to install GRUB on device '~a'~%") device))))
+
;;;
;;; Options.
@@ -71,12 +120,24 @@
(define (show-help)
(display (_ "Usage: guix system [OPTION] ACTION FILE
Build the operating system declared in FILE according to ACTION.\n"))
- (display (_ "Currently the only valid values for ACTION are 'vm', which builds
-a virtual machine of the given operating system that shares the host's store,
-and 'vm-image', which builds a virtual machine image that stands alone.\n"))
+ (newline)
+ (display (_ "The valid values for ACTION are:\n"))
+ (display (_ "\
+ - 'build', build the operating system without installing anything\n"))
+ (display (_ "\
+ - 'vm', build a virtual machine image that shares the host's store\n"))
+ (display (_ "\
+ - 'vm-image', build a freestanding virtual machine image\n"))
+ (display (_ "\
+ - 'disk-image', build a disk image, suitable for a USB stick\n"))
+ (display (_ "\
+ - 'init', initialize a root file system to run GNU.\n"))
+
(show-build-options-help)
(display (_ "
--image-size=SIZE for 'vm-image', produce an image of SIZE"))
+ (display (_ "
+ --no-grub for 'init', do not install GRUB"))
(newline)
(display (_ "
-h, --help display this help and exit"))
@@ -98,6 +159,9 @@ and 'vm-image', which builds a virtual machine image that stands alone.\n"))
(lambda (opt name arg result)
(alist-cons 'image-size (size->number arg)
result)))
+ (option '("no-grub") #f #f
+ (lambda (opt name arg result)
+ (alist-delete 'install-grub? result)))
(option '(#\n "dry-run") #f #f
(lambda (opt name arg result)
(alist-cons 'dry-run? #t result)))
@@ -110,7 +174,8 @@ and 'vm-image', which builds a virtual machine image that stands alone.\n"))
(build-hook? . #t)
(max-silent-time . 3600)
(verbosity . 0)
- (image-size . ,(* 900 (expt 2 20)))))
+ (image-size . ,(* 900 (expt 2 20)))
+ (install-grub? . #t)))
;;;
@@ -125,43 +190,96 @@ and 'vm-image', which builds a virtual machine image that stands alone.\n"))
(leave (_ "~A: unrecognized option~%") name))
(lambda (arg result)
(if (assoc-ref result 'action)
- (let ((previous (assoc-ref result 'argument)))
- (if previous
- (leave (_ "~a: extraneous argument~%") previous)
- (alist-cons 'argument arg result)))
+ (alist-cons 'argument arg result)
(let ((action (string->symbol arg)))
(case action
- ((vm)
- (alist-cons 'action action result))
- ((vm-image)
+ ((build vm vm-image disk-image init)
(alist-cons 'action action result))
(else (leave (_ "~a: unknown action~%")
action))))))
%default-options))
+ (define (match-pair car)
+ ;; Return a procedure that matches a pair with CAR.
+ (match-lambda
+ ((head . tail)
+ (and (eq? car head) tail))
+ (_ #f)))
+
+ (define (option-arguments opts)
+ ;; Extract the plain arguments from OPTS.
+ (let* ((args (reverse (filter-map (match-pair 'argument) opts)))
+ (count (length args))
+ (action (assoc-ref opts 'action)))
+ (define (fail)
+ (leave (_ "wrong number of arguments for action '~a'~%")
+ action))
+
+ (case action
+ ((build vm vm-image disk-image)
+ (unless (= count 1)
+ (fail)))
+ ((init)
+ (unless (= count 2)
+ (fail))))
+ args))
+
(with-error-handling
- (let* ((opts (parse-options))
- (file (assoc-ref opts 'argument))
- (action (assoc-ref opts 'action))
- (os (if file
- (read-operating-system file)
- (leave (_ "no configuration file specified~%"))))
- (mdrv (case action
- ((vm-image)
- (let ((size (assoc-ref opts 'image-size)))
- (system-qemu-image os
- #:disk-image-size size)))
- ((vm)
- (system-qemu-image/shared-store-script os))))
- (store (open-connection))
- (dry? (assoc-ref opts 'dry-run?))
- (drv (run-with-store store mdrv)))
+ (let* ((opts (parse-options))
+ (args (option-arguments opts))
+ (file (first args))
+ (action (assoc-ref opts 'action))
+ (os (if file
+ (read-operating-system file)
+ (leave (_ "no configuration file specified~%"))))
+ (mdrv (case action
+ ((build init)
+ (operating-system-derivation os))
+ ((vm-image)
+ (let ((size (assoc-ref opts 'image-size)))
+ (system-qemu-image os
+ #:disk-image-size size)))
+ ((vm)
+ (system-qemu-image/shared-store-script os))
+ ((disk-image)
+ (let ((size (assoc-ref opts 'image-size)))
+ (system-disk-image os
+ #:disk-image-size size)))))
+ (store (open-connection))
+ (dry? (assoc-ref opts 'dry-run?))
+ (drv (run-with-store store mdrv))
+ (grub? (assoc-ref opts 'install-grub?))
+ (grub.cfg (run-with-store store
+ (operating-system-grub.cfg os)))
+ (grub (package-derivation store grub))
+ (drv-lst (if grub?
+ (list drv grub grub.cfg)
+ (list drv))))
(set-build-options-from-command-line store opts)
- (show-what-to-build store (list drv)
+ (show-what-to-build store drv-lst
#:dry-run? dry?
#:use-substitutes? (assoc-ref opts 'substitutes?))
(unless dry?
- (build-derivations store (list drv))
+ (build-derivations store drv-lst)
(display (derivation->output-path drv))
- (newline)))))
+ (newline)
+
+ (when (eq? action 'init)
+ (let* ((target (second args))
+ (device (grub-configuration-device
+ (operating-system-bootloader os))))
+ (format #t (_ "initializing operating system under '~a'...~%")
+ target)
+
+ (when grub
+ (let ((prefix (derivation->output-path grub)))
+ (setenv "PATH"
+ (string-append prefix "/bin:" prefix "/sbin:"
+ (getenv "PATH")))))
+
+ (install store (derivation->output-path drv)
+ (canonicalize-path target)
+ #:grub? grub?
+ #:grub.cfg (derivation->output-path grub.cfg)
+ #:device device)))))))
generated by cgit v1.2.3 (git 2.45.2) at 2024-07-19 10:49:56 +0000