libinput-gestures.nix

{ pkgs ? (import <nixpkgs> {})
, stdenv ? pkgs.stdenv
, xdotool ? pkgs.xdotool
, makeWrapper ? pkgs.makeWrapper
, wmctrl ? pkgs.wmctrl
, fetchFromGitHub ?  pkgs.fetchFromGitHub
, bash ? pkgs.bash
, python3 ? pkgs.python3
, libinput ? pkgs.libinput
, procps ? pkgs.procps
}:

stdenv.mkDerivation rec {
  version = "2.16";
  name = "libinput-gestures-${version}";
  src = fetchFromGitHub {
    owner = "bulletmark";
    repo = "libinput-gestures";
    rev = version;
    sha256 = "0ix1ygbrwjvabxpq8g4xcfdjrcc6jq79vxpbv6msaxmjxp6dv17w";
  };

  patches = [./paths.diff];

  buildInputs = with pkgs; [ makeWrapper ];

  installFlags = "DESTDIR=$(out)";
  preInstall = ''
    substituteAllInPlace libinput-gestures.desktop
  '';
  postInstall = ''
    wrapProgram $out/bin/libinput-gestures \
      --prefix PATH : "${python3}/bin:${xdotool}/bin:${wmctrl}/bin:${libinput}/bin"
    substituteInPlace $out/bin/libinput-gestures-setup \
      --replace "DIR=\"/" "DIR=\"$out/"
    wrapProgram $out/bin/libinput-gestures-setup \
      --prefix PATH : "${procps}/bin:${libinput}/bin"
  '';

  meta = with stdenv.lib; {
    description = "libinput gesture recognition";
    license = licenses.gpl3;
    maintainers = with maintainers; [ yorickvp ];
  };
}

paths.diff

diff --git a/libinput-gestures b/libinput-gestures
index 7c7418e..6395bfd 100755
--- a/libinput-gestures
+++ b/libinput-gestures
@@ -4,7 +4,7 @@
 import os, sys, argparse, subprocess, shlex, re, getpass, fcntl
 from pathlib import Path
 
-PROG = Path(sys.argv[0]).name
+PROG = "libinput-gestures"
 
 # Conf file containing gesture commands.
 # Search first for user file then system file.
diff --git a/libinput-gestures-setup b/libinput-gestures-setup
index 22be217..5dc000d 100755
--- a/libinput-gestures-setup
+++ b/libinput-gestures-setup
@@ -1,11 +1,11 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # User setup script.
 # (C) Mark Blakeney, [email protected], Aug 2016.
 
-PROG="$(basename $0)"
+PROG="libinput-gestures-setup"
 NAME=${PROG%-*}
 
-BINDIR="/usr/bin"
+BINDIR="/bin"
 APPDIR="/usr/share/applications"
 ICOBAS="/usr/share/icons/hicolor"
 ICODIR="$ICOBAS/128x128/apps"
diff --git a/libinput-gestures.desktop b/libinput-gestures.desktop
index 903c14c..13d71f3 100644
--- a/libinput-gestures.desktop
+++ b/libinput-gestures.desktop
@@ -2,7 +2,7 @@
 Type=Application
 Terminal=false
 Name=Libinput Gestures
-Exec=/usr/bin/libinput-gestures
+Exec=@out@/bin/libinput-gestures
 Icon=libinput-gestures
 Comment=Background application to intercept and action libinput gestures from touchpad.
 Categories=GNOME;GTK;System;

@yorickvP do you mind if I polish this a bit and submit to upstream nixpkgs?