gnu: Add durden.

* gnu/packages/arcan.scm (durden): New variable.
* gnu/packages/patches/durden-shadow-arcan.patch: New file.
* gnu/local.mk: Register it.

Change-Id: I3ea34563c74c227eed40f4ad50d23713c45ce70b
Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu/local.mk

@@ -1120,6 +1120,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/dune-common-skip-failing-tests.patch	\
   %D%/packages/patches/dune-grid-add-missing-include-cassert.patch	\
   %D%/packages/patches/dune-istl-fix-solver-playground.patch	\
+  %D%/packages/patches/durden-shadow-arcan.patch		\
   %D%/packages/patches/dvd+rw-tools-add-include.patch 		\
   %D%/packages/patches/dynaconf-unvendor-deps.patch		\
   %D%/packages/patches/dyninst-fix-glibc-compatibility.patch	\

gnu/packages/arcan.scm

@@ -1,7 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2019 L  p R n  d n <guix@lprndn.info>
 ;;; Copyright © 2021 Guillaume Le Vaillant <glv@posteo.net>
-;;; Copyright © 2023 Ahmad Draidi <a.r.draidi@redscript.org>
+;;; Copyright © 2023, 2024 Ahmad Draidi <a.r.draidi@redscript.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -20,6 +20,7 @@
 
 (define-module (gnu packages arcan)
   #:use-module (guix build-system cmake)
+  #:use-module (guix build-system copy)
   #:use-module (guix build-system meson)
   #:use-module (guix build-system gnu)
   #:use-module (guix gexp)
@@ -27,8 +28,10 @@
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix packages)
   #:use-module (guix utils)
+  #:use-module (gnu packages)
   #:use-module (gnu packages audio)
   #:use-module (gnu packages autotools)
+  #:use-module (gnu packages base)
   #:use-module (gnu packages bash)
   #:use-module (gnu packages compression)
   #:use-module (gnu packages databases)
@@ -183,6 +186,74 @@ engine with a Lua scripting interface.")
               "-DSTATIC_FREETYPE=off" "-DSHMIF_TUI_ACCEL=on")))))
     (synopsis "Combined display server, multimedia framework and game engine (SDL)")))
 
+(define-public durden
+  ;; Match Arcan 0.6.3
+  (let ((commit "a8938b9c835f55bedc2c42aec4ddc5c9739eb949")
+        (revision "1"))
+    (package
+      (name "durden")
+      (version (git-version "0.6.1" revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (file-name (git-file-name name version))
+         (uri (git-reference
+               (url "https://github.com/letoram/durden")
+               (commit commit)))
+         (sha256
+          (base32 "1ybi6x2kwn597kjqycrqmlvp6z79yv2jfwzgx937wcckm55xlpvk"))
+         (patches (search-patches "durden-shadow-arcan.patch"))))
+      (build-system copy-build-system)
+      (arguments
+       (list
+        #:install-plan #~'(("durden/" "share/arcan/appl/durden/")
+                           ("util/" "share/arcan/appl/durden/util/")
+                           ("distr/durden" "bin/durden"))
+        #:phases #~(modify-phases %standard-phases
+                     (add-after 'unpack 'patch-paths
+                       (lambda* (#:key inputs outputs #:allow-other-keys)
+                         (substitute* "distr/durden"
+                           (("/usr/share/\\$applname")
+                            (string-append (assoc-ref outputs "out")
+                                           "/share/arcan/appl"))
+                           (("@ARCAN_STORE_PATH@")
+                            (string-append (assoc-ref inputs "arcan")
+                                           "/bin/arcan"))
+                           (("([\\([:blank:]]+)basename " _ separator)
+                            (string-append separator
+                                           (assoc-ref inputs "coreutils")
+                                           "/bin/basename "))
+                           (("([\\([:blank:]]+)date " _ separator)
+                            (string-append separator
+                                           (assoc-ref inputs "coreutils")
+                                           "/bin/date "))
+                           (("([\\([:blank:]]+)ln " _ separator)
+                            (string-append separator
+                                           (assoc-ref inputs "coreutils")
+                                           "/bin/ln "))
+                           (("([\\([:blank:]]+)mkdir " _ separator)
+                            (string-append separator
+                                           (assoc-ref inputs "coreutils")
+                                           "/bin/mkdir "))
+                           (("([\\([:blank:]]+)true; " _ separator)
+                            (string-append separator
+                                           (assoc-ref inputs "coreutils")
+                                           "/bin/true; "))
+                           (("([\\([:blank:]]+)\\[ " _ separator)
+                            (string-append separator
+                                           (assoc-ref inputs "coreutils")
+                                           "/bin/[ "))))))))
+      (inputs (list arcan coreutils))
+      (home-page "https://durden.arcan-fe.com/")
+      (synopsis "Desktop Environment for Arcan")
+      (description
+       "Durden is a desktop environment for the Arcan Display Server.
+It serves both as a reference showcase on how to take advantage of some of the
+features in Arcan, and as an entry to the advanced-user side of the desktop
+environment spectrum.")
+      (license (list license:bsd-3 license:expat license:cc-by3.0
+                     license:cc-by4.0 license:asl2.0)))))
+
 (define-public xarcan
   (package
     (name "xarcan")

gnu/packages/patches/durden-shadow-arcan.patch

@@ -0,0 +1,42 @@
+From 157524b7cb76c5044a27f4a9e373ee04a9da3c71 Mon Sep 17 00:00:00 2001
+From: Ahmad Draidi <a.r.draidi@redscript.org>
+Date: Tue, 9 Apr 2024 18:26:52 +0400
+Subject: [PATCH] Use arcan from setuid-programs if available
+
+---
+ distr/durden | 10 ++++++++--
+ 1 file changed, 8 insertions(+), 2 deletions(-)
+
+diff --git a/distr/durden b/distr/durden
+index ab431ce..8672556 100755
+--- a/distr/durden
++++ b/distr/durden
+@@ -1,5 +1,11 @@
+ #!/bin/sh
+ 
++if [ -n "$(command -v /run/setuid-programs/arcan 2>/dev/null)" ]; then
++	ARCAN_CMD="/run/setuid-programs/arcan"
++else
++	ARCAN_CMD="@ARCAN_STORE_PATH@"
++fi
++
+ arcan_base=${HOME}/.arcan
+ applname="$(basename $0)"
+ distargs=""
+@@ -98,11 +104,11 @@ while true; do
+ 	starttime=$(date +%s)
+ 
+ 	if [ -d "${arcan_logpath}" ]; then
+-		if arcan ${distargs} -b "$applname" "$applname" "$@" >"${arcan_logpath}/${applname}_${starttime}.log" 2>&1; then
++		if "${ARCAN_CMD}" ${distargs} -b "$applname" "$applname" "$@" >"${arcan_logpath}/${applname}_${starttime}.log" 2>&1; then
+ 			exit
+ 		fi
+ 	else
+-		if arcan ${distargs} -b "$applname" "$applname" "$@"; then
++		if "${ARCAN_CMD}" ${distargs} -b "$applname" "$applname" "$@"; then
+ 			exit
+ 		fi
+ 	fi
+-- 
+2.41.0
+