;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018 Danny Milosavljevic <dannym@scratchpost.org>
;;; Copyright © 2021 Vincent Legoll <vincent.legoll@gmail.com>
;;; Copyright © 2021 Tobias Geerinckx-Rice <me@tobias.gr>
;;;
;;; 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 packages genimage)
  #:use-module (guix utils)
  #:use-module (guix packages)
  #:use-module (guix git-download)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (guix build-system gnu)
  #:use-module (guix build utils)
  #:use-module (gnu packages)
  #:use-module (gnu packages autotools)
  #:use-module (gnu packages base)
  #:use-module (gnu packages bash)
  #:use-module (gnu packages bootloaders)
  #:use-module (gnu packages cdrom)
  #:use-module (gnu packages compression)
  #:use-module (gnu packages cpio)
  #:use-module (gnu packages disk)
  #:use-module (gnu packages linux)
  #:use-module (gnu packages mtools)
  #:use-module (gnu packages pkg-config)
  #:use-module (gnu packages textutils)
  #:use-module (gnu packages virtualization))

(define-public genimage
  (let ((commit "ec44ae086c705e6f0439e742c5a2e9b8f3d6ca82")
        (revision "1"))
    (package
      (name "genimage")
      (version (git-version "15" revision commit))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/pengutronix/genimage")
                      (commit commit)))
                (file-name (git-file-name name version))
                (sha256
                 (base32
                  "0amj2vjff58yna6kq959i2gqmbjywqr8j5kr5pjqsvbqam3vgg0r"))
                (patches
                 (search-patches "genimage-mke2fs-test.patch"))))
      (build-system gnu-build-system)
      (arguments
       `(#:modules
         ((ice-9 match)
          ,@%default-gnu-modules)
         #:phases
         (modify-phases %standard-phases
           (add-after 'unpack 'guixify
             (lambda* (#:key inputs #:allow-other-keys)
               (map (match-lambda
                      ((input directory regexp)
                       (substitute* "config.c"
                         (((format #f "\\.def = \"(~a)\"" regexp) _ command)
                          (format #f ".def = \"~a/~a/~a\""
                                  (assoc-ref inputs input) directory command)))))
                    '(("cpio"           "bin"  "cpio")
                      ("coreutils"      "bin"  "dd")
                      ("e2fsprogs"      "sbin" "debugfs|e2fsck|mke2fs|tune2fs")
                      ("genext2fs"      "bin"  "genext2fs")
                      ("cdrkit-libre"   "bin"  "genisoimage")
                      ("mtools"         "bin"  "mcopy|mmd")
                      ;; mkcramfs is obsolete.
                      ("dosfstools"     "sbin" "mkdosfs")
                      ("mtd-utils"      "sbin" "mkfs.(jffs2|ubifs)|ubinize")
                      ("squashfs-tools" "bin"  "mksquashfs")
                      ("qemu"           "bin"  "qemu-img")
                      ("tar"            "bin"  "tar")
                      ("u-boot-tools"   "bin"  "mkimage")))
               (substitute* "util.c"
                 (("\"/bin/sh\"")
                  (string-append "\"" (assoc-ref inputs "bash") "/bin/sh\"")))))
           (add-before 'check 'fix-failing-tests
             (lambda _
               ;; We don't have /etc/passwd so uid 0 is not known as "root".
               ;; Thus patch it out.
               (substitute* '("test/ext2test.0.dump"
                              "test/ext2test.1.dump"
                              "test/ext3test.0.dump"
                              "test/ext3test.1.dump"
                              "test/ext4test.0.dump"
                              "test/ext4test.1.dump"
                              "test/ext2test-percent.0.dump"
                              "test/ext2test-percent.1.dump"
                              "test/mke2fs.0.dump")
                 (("root") "unknown"))))
           (add-before 'check 'setenv-check
             (lambda _
               ;; Our container doesn't provide access to /etc/mtab
               (setenv "EXT2FS_NO_MTAB_OK" "1")
               ;; Make test reproducible
               (setenv "GENIMAGE_MKFJFFS2" "mkfs.jffs2 -U")
               (setenv "GENIMAGE_MKE2FS" "mke2fs -E no_copy_xattrs")))
           (replace 'check
             (lambda _
               (invoke "make" "TEST_LOG_COMPILER=" "check"))))))
      (native-inputs
       (list autoconf
             automake
             ;;; Note: cramfs is obsolete.
             dtc ; for the tests
             pkg-config
             util-linux)) ; for the tests
      (inputs
       `(("bash" ,bash)
         ("cdrkit-libre" ,cdrkit-libre)
         ("cpio" ,cpio)
         ;; Note: invoked by final executable.
         ("coreutils" ,coreutils) ; chmod, dd
         ("dosfstools" ,dosfstools)
         ("e2fsprogs" ,e2fsprogs)
         ("genext2fs" ,genext2fs)
         ("libconfuse" ,libconfuse)
         ("mtd-utils" ,mtd-utils)
         ("mtools" ,mtools)
         ("qemu" ,qemu-minimal)
         ("squashfs-tools" ,squashfs-tools)
         ("tar" ,tar)
         ("u-boot-tools" ,u-boot-tools)))
      (synopsis "Create Flash images according to specification")
      (description "@command{genimage} creates Flash images according to a
specification file.")
      (home-page "https://github.com/pengutronix/genimage")
      (license license:gpl2))))
