From b1b162a829f42c274d09031a93fd34ad4bacd5eb Mon Sep 17 00:00:00 2001
From: Dmitriy Kholkin <alukard.develop@gmail.com>
Date: Wed, 15 Sep 2021 15:33:45 +0300
Subject: [PATCH] update multimc

---
 flake.nix                    | 12 ++++++---
 modules/overlay.nix          | 11 +--------
 modules/packages/multimc.nix | 48 ++++++++++++++++++++++++++++++++++++
 3 files changed, 57 insertions(+), 14 deletions(-)
 create mode 100644 modules/packages/multimc.nix

diff --git a/flake.nix b/flake.nix
index 21f343b..611f97c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -45,10 +45,14 @@
       url = gitlab:rycee/nur-expressions;
       flake = false;
     };
-    # multimc-cracked = {
-    #   url = github:AfoninZ/MultiMC5-Cracked;
-    #   flake = false;
-    # };
+    multimc-cracked = {
+      url = "https://github.com/AfoninZ/MultiMC5-Cracked.git";
+      ref = "develop";
+      rev = "9069e9c9d0b7951c310fdcc8bdc70ebc422a7634";
+      flake = false;
+      submodules = true;
+      type = "git";
+    };
     qbittorrent-ee = {
       url = github:c0re100/qBittorrent-Enhanced-Edition;
       flake = false;
diff --git a/modules/overlay.nix b/modules/overlay.nix
index fe63c87..82710a2 100644
--- a/modules/overlay.nix
+++ b/modules/overlay.nix
@@ -31,16 +31,7 @@ in
         vscode = master.vscode;
         vscode-fhs = master.vscode-fhs;
         vivaldi = master.vivaldi;
-        multimc = super.multimc.overrideAttrs (stable: rec {
-          version = "unstable-cracked";
-          src = super.fetchFromGitHub {
-            owner = "AfoninZ";
-            repo = "MultiMC5-Cracked";
-            rev = "6d6218a21ba54e77c4fc76b3ae8cddf3334f1a5d";
-            sha256 = "0k59pnqdlzqp75c1lbpqy2i09mmy5qisikalm427i16b07ga9xcl";
-            fetchSubmodules = true;
-          };
-        });
+        multimc = pkgs.qt5.callPackage ./packages/multimc.nix { multimc-repo = inputs.multimc-cracked; };
         steam = super.steam.override {
           extraLibraries = pkgs: with pkgs; [
             pipewire
diff --git a/modules/packages/multimc.nix b/modules/packages/multimc.nix
new file mode 100644
index 0000000..f11d37a
--- /dev/null
+++ b/modules/packages/multimc.nix
@@ -0,0 +1,48 @@
+{ multimc-repo, lib, pkgs, mkDerivation }:
+
+let
+  libpath = with pkgs; lib.makeLibraryPath [ xorg.libX11 xorg.libXext xorg.libXcursor xorg.libXrandr xorg.libXxf86vm libpulseaudio libGL ];
+in mkDerivation rec {
+  pname = "multimc";
+  version = "unstable";
+  src = multimc-repo;
+  nativeBuildInputs = with pkgs; [ cmake file makeWrapper ];
+  buildInputs = with pkgs; [ libsForQt5.qt5.qtbase jdk8 jdk zlib ];
+
+  # patches = [ ./0001-pick-latest-java-first.patch ];
+
+  postPatch = ''
+    # hardcode jdk paths
+    substituteInPlace api/logic/java/JavaUtils.cpp \
+      --replace 'scanJavaDir("/usr/lib/jvm")' 'javas.append("${pkgs.jdk}/lib/openjdk/bin/java")' \
+      --replace 'scanJavaDir("/usr/lib32/jvm")' 'javas.append("${pkgs.jdk8}/lib/openjdk/bin/java")'
+  '';
+
+  cmakeFlags = [ "-DMultiMC_LAYOUT=lin-system" ];
+
+  postInstall = ''
+    ls -lah ./
+    ls -lah ../
+    install -Dm644 ../application/resources/multimc/scalable/multimc.svg $out/share/pixmaps/multimc.svg
+    install -Dm755 ../application/package/linux/multimc.desktop $out/share/applications/multimc.desktop
+
+    # xorg.xrandr needed for LWJGL [2.9.2, 3) https://github.com/LWJGL/lwjgl/issues/128
+    wrapProgram $out/bin/multimc \
+      --set GAME_LIBRARY_PATH /run/opengl-driver/lib:${libpath} \
+      --prefix PATH : ${lib.makeBinPath [ pkgs.xorg.xrandr ]}
+  '';
+
+  meta = with lib; {
+    homepage = "https://multimc.org/";
+    description = "A free, open source launcher for Minecraft";
+    longDescription = ''
+      Allows you to have multiple, separate instances of Minecraft (each with their own mods, texture packs, saves, etc) and helps you manage them and their associated options with a simple interface.
+    '';
+    platforms = platforms.linux;
+    license = licenses.asl20;
+    # upstream don't want us to re-distribute this application:
+    # https://github.com/NixOS/nixpkgs/issues/131983
+    hydraPlatforms = [];
+    maintainers = with maintainers; [ cleverca22 starcraft66 ];
+  };
+}
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