autorandr: WIP Fix distutils import warning

Because autorandr still imports distutils, it produces a bunch of
deprecation warnings. we need to add packaging to propagatedBuildInputs,
but because this wasn't wrapped, the wrapper hook did not take care of
adjusting the system path.

The easiest way I could find to fix this was to actually wrap
autorandr. Then I also had to add a patch to disable autorandr
using sys.executable to fork itself in --batch mode. Otherwise it tries to use
python to run the bash wrapper, which doesn't work. This should be
fine in a nixpkgs environment, since nixpkgs sets the shebang explicitly.

pkgs/tools/misc/autorandr/0001-don-t-use-sys.executable.patch

@@ -0,0 +1,33 @@
+From fdcc2f01441ec25104456022e6f8d3120709cede Mon Sep 17 00:00:00 2001
+From: Romanos Skiadas <rom.skiad@gmail.com>
+Date: Tue, 28 Jun 2022 06:16:10 +0300
+Subject: [PATCH] don't use sys.executable
+
+This is required for forking self in a nixpkgs environment,
+where arandr might be wrapped. In that case, the actual arandr command
+will be a bash script, not python.
+There is no real reason to keep this around, nixpkgs properly sets the
+interpreter in the shebang anyway.
+---
+ autorandr.py | 5 +----
+ 1 file changed, 1 insertion(+), 4 deletions(-)
+
+diff --git autorandr.py autorandr.py
+index 35c15f6..1e84a2f 100755
+--- a/autorandr.py
++++ b/autorandr.py
+@@ -1192,10 +1192,7 @@ def dispatch_call_to_sessions(argv):
+             os.chdir(pwent.pw_dir)
+             os.environ.clear()
+             os.environ.update(process_environ)
+-            if sys.executable != "" and sys.executable != None:
+-                os.execl(sys.executable, sys.executable, autorandr_binary, *argv[1:])
+-            else:
+-                os.execl(autorandr_binary, autorandr_binary, *argv[1:])
++            os.execl(autorandr_binary, autorandr_binary, *argv[1:])
+             sys.exit(1)
+         os.waitpid(child_pid, 0)
+ 
+-- 
+2.36.1
+

pkgs/tools/misc/autorandr/default.nix

@@ -1,25 +1,26 @@
-{ lib, stdenv
+{ lib
+, python3
 , python3Packages
 , fetchFromGitHub
 , systemd
 , xrandr
 , installShellFiles }:
 
-stdenv.mkDerivation rec {
+python3.pkgs.buildPythonApplication rec {
   pname = "autorandr";
   version = "1.12.1";
 
-  buildInputs = [ python3Packages.python ];
-
   nativeBuildInputs = [ installShellFiles ];
+  propagatedBuildInputs = [ python3Packages.packaging ];
 
-  # no wrapper, as autorandr --batch does os.environ.clear()
   buildPhase = ''
     substituteInPlace autorandr.py \
       --replace 'os.popen("xrandr' 'os.popen("${xrandr}/bin/xrandr' \
       --replace '["xrandr"]' '["${xrandr}/bin/xrandr"]'
   '';
 
+  patches = [ ./0001-don-t-use-sys.executable.patch ];
+
   outputs = [ "out" "man" ];
 
   installPhase = ''