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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2020 Mathieu Othacehe <m.othacehe@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(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
partition-size
partition-offset
partition-file-system
partition-file-system-options
partition-label
partition-uuid
partition-flags
partition-initializer
image
image?
image-name
image-format
image-platform
image-size
image-operating-system
image-partition-table-type
image-partitions
image-compression?
image-volatile-root?
image-shared-store?
image-shared-network?
image-substitutable?
image-type
image-type?
image-type-name
image-type-constructor
os->image
os+platform->image))
;;;
;;; Partition record.
;;;
(define-record-type* <partition> partition make-partition
partition?
(device partition-device (default #f))
(size partition-size)
(offset partition-offset (default 0))
(file-system partition-file-system (default "ext4"))
(file-system-options partition-file-system-options
(default '()))
(label partition-label (default #f))
(uuid partition-uuid (default #f))
(flags partition-flags (default '()))
(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
(sanitize validate-image-format))
(platform image-platform ;<platform>
(default #f))
(size image-size ;size in bytes as integer
(default 'guess))
(operating-system image-operating-system ;<operating-system>
(default #f))
(partition-table-type image-partition-table-type ; 'mbr or 'gpt
(default 'mbr)
(sanitize validate-partition-table-type))
(partitions image-partitions ;list of <partition>
(default '()))
(compression? image-compression? ;boolean
(default #t))
(volatile-root? image-volatile-root? ;boolean
(default #t))
(shared-store? image-shared-store? ;boolean
(default #f))
(shared-network? image-shared-network? ;boolean
(default #f))
(substitutable? image-substitutable? ;boolean
(default #t)))
;;;
;;; Image type.
;;;
(define-record-type* <image-type>
image-type make-image-type
image-type?
(name image-type-name) ;symbol
(constructor image-type-constructor)) ;<operating-system> -> <image>
;;;
;;; Image creation.
;;;
(define* (os->image os #:key type)
(let ((constructor (image-type-constructor type)))
(constructor os)))
(define* (os+platform->image os platform #:key type)
(image
(inherit (os->image os #:type type))
(platform platform)))
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