;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2017, 2021 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2017–2022 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2018 Julien Lepiller <julien@lepiller.eu>
;;; Copyright © 2018, 2019 Rutger Helling <rhelling@mykolab.com>
;;; Copyright © 2019 Vagrant Cascadian <vagrant@reproducible-builds.org>
;;; Copyright © 2022, 2023 Efraim Flashner <efraim@flashner.co.il>
;;;
;;; 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 diffoscope)
  #:use-module (gnu packages)
  #:use-module (gnu packages acl)
  #:use-module (gnu packages admin)
  #:use-module (gnu packages android)
  #:use-module (gnu packages backup)
  #:use-module (gnu packages base)
  #:use-module (gnu packages bootloaders)
  #:use-module (gnu packages cdrom)
  #:use-module (gnu packages check)
  #:use-module (gnu packages compression)
  #:use-module (gnu packages cpio)
  #:use-module (gnu packages dbm)
  #:use-module (gnu packages file)      ;for 'file-next'
  #:use-module (gnu packages gettext)
  #:use-module (gnu packages ghostscript)
  #:use-module (gnu packages gnome)
  #:use-module (gnu packages gnupg)
  #:use-module (gnu packages haskell)
  #:use-module (gnu packages image)
  #:use-module (gnu packages imagemagick)
  #:use-module (gnu packages java)
  #:use-module (gnu packages linux)
  #:use-module (gnu packages llvm)
  #:use-module (gnu packages man)
  #:use-module (gnu packages maths)
  #:use-module (gnu packages ocaml)
  #:use-module (gnu packages package-management)
  #:use-module (gnu packages pascal)
  #:use-module (gnu packages patchutils)
  #:use-module (gnu packages pdf)
  #:use-module (gnu packages python-check)
  #:use-module (gnu packages python-web)
  #:use-module (gnu packages python-xyz)
  #:use-module (gnu packages sqlite)
  #:use-module (gnu packages ssh)
  #:use-module (gnu packages statistics)
  #:use-module (gnu packages textutils)
  #:use-module (gnu packages tls)
  #:use-module (gnu packages video)
  #:use-module (gnu packages vim)
  #:use-module (gnu packages web)
  #:use-module (guix build-system python)
  #:use-module (guix gexp)
  #:use-module (guix git-download)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (guix packages)
  #:use-module (guix utils)
  #:use-module (ice-9 match))

(define-public diffoscope
  (package
    (name "diffoscope")
    (version "233")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://salsa.debian.org/reproducible-builds/diffoscope.git")
             (commit version)))
       (file-name (git-file-name name version))
       (sha256
        (base32 "1m6fc7k8cd7ahra05vqccw1fdbjj6d20vr3q8v67ynnyih5nmbnb"))))
    (build-system python-build-system)
    (arguments
     `(#:phases (modify-phases %standard-phases
                  ;; These tests are broken because our `file` package has a
                  ;; bug in berkeley-db and wasm file type detection.
                  (add-after 'unpack 'remove-broken-file-type-detection-test
                    (lambda _
                      (delete-file "tests/comparators/test_berkeley_db.py")
                      (delete-file "tests/comparators/test_wasm.py")))
                  (add-after 'unpack 'embed-tool-references
                    (lambda* (#:key inputs #:allow-other-keys)
                      (substitute* "diffoscope/comparators/utils/compare.py"
                        (("\\[\"xxd\",")
                         (string-append "[\"" (which "xxd") "\",")))
                      (substitute* "diffoscope/diff.py"
                        (("@tool_required\\(\"diff\"\\)") "")
                        (("get_tool_name\\(\"diff\"\\)")
                         (string-append "get_tool_name(\"" (which "diff") "\")")))
                      (substitute* "diffoscope/comparators/directory.py"
                        (("@tool_required\\(\"stat\"\\)") "")
                        (("@tool_required\\(\"getfacl\"\\)") "")
                        (("\\[\"stat\",")
                         (string-append "[\"" (which "stat") "\","))
                        (("\\[\"getfacl\",")
                         (string-append "[\"" (which "getfacl") "\",")))))
                  (add-after 'build 'build-man-page
                    (lambda _
                      (invoke "make" "-C" "doc")))
                  (add-before 'check 'writable-test-data
                    (lambda _
                      ;; Tests may need write access to tests directory.
                      (for-each make-file-writable (find-files "tests"))))
                  (add-before 'check 'fix-failing-test
                    (lambda _
                      ;; There is no user name mapping in the build environment.
                      ;; Pytest made it so much harder than should be necessary,
                      ;; so I'm leaving… this here in case I ever need it again:
                      ;; (substitute* "tests/comparators/test_squashfs.py"
                      ;;   (("^def test_symlink_root.*" match)     ; no, I don't
                      ;;    (string-append                         ; know Python
                      ;;     match "\n    raise ValueError("       ; why do you
                      ;;     "differences_root[1].unified_diff)\n"))) ; ask
                      (substitute* "tests/data/squashfs_root_expected_diff"
                        (("root/root")
                         '"0/0      "))))
                  (add-before 'check 'delete-failing-test
                    ;; Please add new tests to fix-failing-test and not here ;-)
                    (lambda _
                      ;; This requires /sbin to be in $PATH.
                      (delete-file "tests/test_tools.py")))
                  (add-after 'install 'install-man-page