From 66611546f0a57a4d8c7a36af07ad0105f8942d5d Mon Sep 17 00:00:00 2001
From: Alex Rice <alexrice999@hotmail.co.uk>
Date: Sun, 14 Apr 2019 10:53:43 +0100
Subject: [PATCH] brillo: init at 1.4.8

---
 nixos/modules/hardware/brillo.nix             | 22 ++++++++++++
 nixos/modules/module-list.nix                 |  1 +
 pkgs/os-specific/linux/brillo/default.nix     | 34 +++++++++++++++++++
 pkgs/os-specific/linux/brillo/udev-rule.patch | 13 +++++++
 pkgs/top-level/all-packages.nix               |  2 ++
 5 files changed, 72 insertions(+)
 create mode 100644 nixos/modules/hardware/brillo.nix
 create mode 100644 pkgs/os-specific/linux/brillo/default.nix
 create mode 100644 pkgs/os-specific/linux/brillo/udev-rule.patch

diff --git a/nixos/modules/hardware/brillo.nix b/nixos/modules/hardware/brillo.nix
new file mode 100644
index 00000000000..e970c948099
--- /dev/null
+++ b/nixos/modules/hardware/brillo.nix
@@ -0,0 +1,22 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+let
+  cfg = config.hardware.brillo;
+in
+{
+  options = {
+    hardware.brillo = {
+      enable = mkEnableOption ''
+        Enable brillo in userspace.
+        This will allow brightness control from users in the video group.
+      '';
+    };
+  };
+
+
+  config = mkIf cfg.enable {
+    services.udev.packages = [ pkgs.brillo ];
+    environment.systemPackages = [ pkgs.brillo ];
+  };
+}
diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index df6e4dc1336..88c3a6d73ac 100644
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -44,6 +44,7 @@
   ./hardware/all-firmware.nix
   ./hardware/bladeRF.nix
   ./hardware/brightnessctl.nix
+  ./hardware/brillo.nix
   ./hardware/ckb-next.nix
   ./hardware/cpu/amd-microcode.nix
   ./hardware/cpu/intel-microcode.nix
diff --git a/pkgs/os-specific/linux/brillo/default.nix b/pkgs/os-specific/linux/brillo/default.nix
new file mode 100644
index 00000000000..3ad4acf127b
--- /dev/null
+++ b/pkgs/os-specific/linux/brillo/default.nix
@@ -0,0 +1,34 @@
+{ stdenv, fetchFromGitLab , go-md2man, coreutils, substituteAll }:
+
+stdenv.mkDerivation rec {
+  pname = "brillo";
+  version = "1.4.8";
+
+  src = fetchFromGitLab {
+    owner= "cameronnemo";
+    repo= "brillo";
+    rev= "v${version}";
+    sha256 = "0wxvg541caiwm3bjwbmk7xcng7jd9xsiga2agxwp7gpkrlp74j9f";
+  };
+
+  patches = [
+    (substituteAll {
+      src = ./udev-rule.patch;
+      inherit coreutils;
+    })
+  ];
+
+  nativeBuildInputs = [ go-md2man ];
+
+  makeFlags = [ "PREFIX=$(out)" "AADIR=$(out)/etc/apparmor.d" ];
+
+  installTargets = "install-dist";
+
+  meta = with stdenv.lib; {
+    description = "Backlight and Keyboard LED control tool";
+    homepage = https://gitlab.com/cameronnemo/brillo;
+    license = [ licenses.gpl3 licenses.bsd0 ];
+    platforms = platforms.linux;
+    maintainers = [ maintainers.alexarice ];
+  };
+}
diff --git a/pkgs/os-specific/linux/brillo/udev-rule.patch b/pkgs/os-specific/linux/brillo/udev-rule.patch
new file mode 100644
index 00000000000..7b1cf484067
--- /dev/null
+++ b/pkgs/os-specific/linux/brillo/udev-rule.patch
@@ -0,0 +1,13 @@
+diff --git a/contrib/udev.in b/contrib/udev.in
+index 0625952..a6c940e 100644
+--- a/contrib/udev.in
++++ b/contrib/udev.in
+@@ -1,4 +1,4 @@
+-ACTION=="add", SUBSYSTEM=="backlight", RUN+="/bin/chgrp @group@ /sys/class/backlight/%k/brightness"
+-ACTION=="add", SUBSYSTEM=="backlight", RUN+="/bin/chmod g+w /sys/class/backlight/%k/brightness"
+-ACTION=="add", SUBSYSTEM=="leds", RUN+="/bin/chgrp @group@ /sys/class/leds/%k/brightness"
+-ACTION=="add", SUBSYSTEM=="leds", RUN+="/bin/chmod g+w /sys/class/leds/%k/brightness"
++ACTION=="add", SUBSYSTEM=="backlight", RUN+="@coreutils@/bin/chgrp @group@ /sys/class/backlight/%k/brightness"
++ACTION=="add", SUBSYSTEM=="backlight", RUN+="@coreutils@/bin/chmod g+w /sys/class/backlight/%k/brightness"
++ACTION=="add", SUBSYSTEM=="leds", RUN+="@coreutils@/bin/chgrp @group@ /sys/class/leds/%k/brightness"
++ACTION=="add", SUBSYSTEM=="leds", RUN+="@coreutils@/bin/chmod g+w /sys/class/leds/%k/brightness"
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index b60bb760d5a..a9fd2bf2f8c 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -15666,6 +15666,8 @@ in
 
   bt-fw-converter = callPackage ../os-specific/linux/firmware/bt-fw-converter { };
 
+  brillo = callPackage ../os-specific/linux/brillo { };
+
   broadcom-bt-firmware = callPackage ../os-specific/linux/firmware/broadcom-bt-firmware { };
 
   batctl = callPackage ../os-specific/linux/batman-adv/batctl.nix { };