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-rw-r--r--gnu/image.scm30
1 files changed, 27 insertions, 3 deletions
diff --git a/gnu/image.scm b/gnu/image.scm
index e10a495d3d..486c02aadc 100644
--- a/gnu/image.scm
+++ b/gnu/image.scm
@@ -19,6 +19,10 @@
(define-module (gnu image)
#:use-module (guix platform)
#:use-module (guix records)
+ #:use-module (guix diagnostics)
+ #:use-module (guix i18n)
+ #:use-module (srfi srfi-34)
+ #:use-module (srfi srfi-35)
#:export (partition
partition?
partition-device
@@ -70,19 +74,38 @@
(label partition-label (default #f))
(uuid partition-uuid (default #f))
(flags partition-flags (default '()))
- (initializer partition-initializer (default #f)))
+ (initializer partition-initializer (default #f))) ;gexp | #f
;;;
;;; Image record.
;;;
+(define-syntax-rule (define-set-sanitizer name field set)
+ "Define NAME as a procedure or macro that raises an error if passed a value
+that is not in SET, mentioning FIELD in the error message."
+ (define-with-syntax-properties (name (value properties))
+ (unless (memq value 'set)
+ (raise
+ (make-compound-condition
+ (condition
+ (&error-location
+ (location (source-properties->location properties))))
+ (formatted-message (G_ "~s: invalid '~a' value") value 'field))))
+ value))
+
+(define-set-sanitizer validate-image-format format
+ (disk-image compressed-qcow2 docker iso9660))
+(define-set-sanitizer validate-partition-table-type partition-table-type
+ (mbr gpt))
+
(define-record-type* <image>
image make-image
image?
(name image-name ;symbol
(default #f))
- (format image-format) ;symbol
+ (format image-format ;symbol
+ (sanitize validate-image-format))
(platform image-platform ;<platform>
(default #f))
(size image-size ;size in bytes as integer
@@ -90,7 +113,8 @@
(operating-system image-operating-system ;<operating-system>
(default #f))
(partition-table-type image-partition-table-type ; 'mbr or 'gpt
- (default 'mbr))
+ (default 'mbr)
+ (sanitize validate-partition-table-type))
(partitions image-partitions ;list of <partition>
(default '()))
(compression? image-compression? ;boolean