gnu: packages: Add ukify.

* gnu/packages/bootloaders.scm (%systemd-version, systemd-source,
ukify): New variables.

Change-Id: Icde59b7266529c8002331ff0375e0a35af3a2add

gnu/packages/bootloaders.scm

@@ -21,6 +21,7 @@
 ;;; Copyright © 2023-2024 Herman Rimm <herman@rimm.ee>
 ;;; Copyright © 2023 Simon Tournier <zimon.toutoune@gmail.com>
 ;;; Copyright © 2024 Zheng Junjie <873216071@qq.com>
+;;; Copyright © 2024 Lilah Tascheter <lilah@lunabee.space>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -48,6 +49,7 @@ (define-module (gnu packages bootloaders)
   #:use-module (gnu packages compression)
   #:use-module (gnu packages cross-base)
   #:use-module (gnu packages disk)
+  #:use-module (gnu packages efi)
   #:use-module (gnu packages firmware)
   #:use-module (gnu packages flex)
   #:use-module (gnu packages fontutils)
@@ -76,11 +78,13 @@ (define-module (gnu packages bootloaders)
   #:use-module (gnu packages version-control)
   #:use-module (gnu packages virtualization)
   #:use-module (gnu packages xorg)
+  #:use-module (gnu packages python-crypto)
   #:use-module (gnu packages python-web)
   #:use-module (gnu packages python-xyz)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system meson)
   #:use-module (guix build-system pyproject)
+  #:use-module (guix build-system python)
   #:use-module (guix build-system trivial)
   #:use-module (guix download)
   #:use-module (guix gexp)
@@ -576,6 +580,59 @@ (define-public syslinux
                      ;; Also contains:
                      license:expat license:isc license:zlib)))))
 
+(define %systemd-version "255")
+(define systemd-source
+  (origin
+    (method git-fetch)
+    (uri (git-reference
+           (url "https://github.com/systemd/systemd")
+           (commit (string-append "v" %systemd-version))))
+    (file-name (git-file-name "systemd" %systemd-version))
+    (snippet #~(substitute* "src/ukify/ukify.py"
+                 ;; Remove after python 3.11.
+                 (("datetime\\.UTC") "datetime.timezone.utc")))
+    (modules '((guix build utils)))
+    (sha256
+      (base32
+        "1qdyw9g3jgvsbc1aryr11gpc3075w5pg00mqv4pyf3hwixxkwaq6"))))
+
+(define-public ukify
+  (package
+    (name "ukify")
+    (version %systemd-version)
+    (source systemd-source)
+    (build-system python-build-system)
+    (arguments
+      (list
+        #:phases
+        #~(modify-phases %standard-phases
+            (replace 'build
+              (lambda* (#:key inputs #:allow-other-keys)
+                (define (get-tool tool)
+                  (search-input-file inputs (string-append "bin/" tool)))
+                ;; Hardcode the tool paths.
+                (substitute* "src/ukify/ukify.py"
+                  (("(find_tool\\(')(readelf|sbsign|pesign)'," _ ctx tool)
+                   (string-append ctx (get-tool tool) "',"))
+                  (("('name': ')(sbverify|pesign)'," _ ctx tool)
+                   (string-append ctx (get-tool tool) "',")))))
+            (delete 'check)
+            (replace 'install
+              (lambda* (#:key inputs #:allow-other-keys)
+                (let* ((bin (string-append #$output "/bin"))
+                       (file (string-append bin "/ukify")))
+                  (mkdir-p bin)
+                  (copy-file "src/ukify/ukify.py" file)))))))
+    (inputs
+      (list binutils pesign python-cryptography python-pefile sbsigntools))
+    (home-page "https://systemd.io/")
+    (synopsis "Unified kernel image UEFI tool")
+    (description
+      "@command{ukify} joins together a UKI stub, linux kernel, initrd,
+kernel arguments, and optional secure boot signatures into a single,
+UEFI-bootable image.")
+    (license license:lgpl2.1+)))
+
 (define-public dtc
   (package
     (name "dtc")