diff options
Diffstat (limited to 'gnu/system/image.scm')
| -rw-r--r-- | gnu/system/image.scm | 90 |
1 files changed, 73 insertions, 17 deletions
diff --git a/gnu/system/image.scm b/gnu/system/image.scm index 0f2fb62a6b..c81054f847 100644 --- a/gnu/system/image.scm +++ b/gnu/system/image.scm @@ -18,6 +18,8 @@ ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. (define-module (gnu system image) + #:use-module (guix diagnostics) + #:use-module (guix discovery) #:use-module (guix gexp) #:use-module (guix modules) #:use-module (guix monads) @@ -64,9 +66,16 @@ efi-disk-image iso9660-image - find-image + image-with-os + raw-image-type + iso-image-type + uncompressed-iso-image-type + + image-with-label system-image - image-with-label)) + + %image-types + lookup-image-type-by-name)) ;;; @@ -114,6 +123,37 @@ (flags '(boot))))))) +;;; +;;; Images types. +;;; + +(define-syntax-rule (image-with-os base-image os) + "Return an image inheriting from BASE-IMAGE, with the operating-system field +set to the given OS." + (image + (inherit base-image) + (operating-system os))) + +(define raw-image-type + (image-type + (name 'raw) + (constructor (cut image-with-os efi-disk-image <>)))) + +(define iso-image-type + (image-type + (name 'iso9660) + (constructor (cut image-with-os iso9660-image <>)))) + +(define uncompressed-iso-image-type + (image-type + (name 'uncompressed-iso9660) + (constructor (cut image-with-os + (image + (inherit iso9660-image) + (compression? #f)) + <>)))) + + ;; ;; Helpers. ;; @@ -442,7 +482,7 @@ returns an image record where the first partition's label is set to <label>." image-size) (else root-size)))) -(define* (image-with-os base-image os) +(define* (image-with-os* base-image os) "Return an image based on BASE-IMAGE but with the operating-system field set to OS. Also set the UUID and the size of the root partition." (define root-file-system @@ -523,7 +563,7 @@ image, depending on IMAGE format." (with-parameters ((%current-target-system target)) (let* ((os (operating-system-for-image image)) - (image* (image-with-os image os)) + (image* (image-with-os* image os)) (image-format (image-format image)) (register-closures? (has-guix-service-type? os)) (bootcfg (operating-system-bootcfg os)) @@ -556,18 +596,34 @@ image, depending on IMAGE format." #:grub-mkrescue-environment '(("MKRESCUE_SED_MODE" . "mbr_only")))))))) -(define (find-image file-system-type target) - "Find and return an image built that could match the given FILE-SYSTEM-TYPE, -built for TARGET. This is useful to adapt to interfaces written before the -addition of the <image> record." - (match file-system-type - ("iso9660" iso9660-image) - (_ (cond - ((and target - (hurd-triplet? target)) - (module-ref (resolve-interface '(gnu system images hurd)) - 'hurd-disk-image)) - (else - efi-disk-image))))) + +;; +;; Image detection. +;; + +(define (image-modules) + "Return the list of image modules." + (cons (resolve-interface '(gnu system image)) + (all-modules (map (lambda (entry) + `(,entry . "gnu/system/images/")) + %load-path) + #:warn warn-about-load-error))) + +(define %image-types + ;; The list of publically-known image types. + (delay (fold-module-public-variables (lambda (obj result) + (if (image-type? obj) + (cons obj result) + result)) + '() + (image-modules)))) + +(define (lookup-image-type-by-name name) + "Return the image type called NAME." + (or (srfi-1:find (lambda (image-type) + (eq? name (image-type-name image-type))) + (force %image-types)) + (raise + (formatted-message (G_ "~a: no such image type~%") name)))) ;;; image.scm ends here |