From 7287a9e91d9702fbec8899e7f6ffad7551a0f269 Mon Sep 17 00:00:00 2001
From: Mitsuhiro Nakamura <m.nacamura@gmail.com>
Date: Mon, 22 Jan 2018 12:19:27 +0900
Subject: [PATCH] cataclysm-dda{,-git}: create app launcher on Darwin

---
 pkgs/games/cataclysm-dda/default.nix | 21 +++++++++++++++++++--
 pkgs/games/cataclysm-dda/git.nix     | 11 +++++++++++
 2 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/pkgs/games/cataclysm-dda/default.nix b/pkgs/games/cataclysm-dda/default.nix
index 65ed964ba998..c5e17473b490 100644
--- a/pkgs/games/cataclysm-dda/default.nix
+++ b/pkgs/games/cataclysm-dda/default.nix
@@ -1,5 +1,5 @@
 { fetchFromGitHub, stdenv, makeWrapper, pkgconfig, ncurses, lua, SDL2, SDL2_image, SDL2_ttf,
-SDL2_mixer, freetype, gettext, Cocoa }:
+SDL2_mixer, freetype, gettext, Cocoa, libicns }:
 
 stdenv.mkDerivation rec {
   version = "0.C";
@@ -12,7 +12,8 @@ stdenv.mkDerivation rec {
     sha256 = "03sdzsk4qdq99qckq0axbsvg1apn6xizscd8pwp5w6kq2fyj5xkv";
   };
 
-  nativeBuildInputs = [ makeWrapper pkgconfig ];
+  nativeBuildInputs = [ makeWrapper pkgconfig ]
+    ++ stdenv.lib.optionals stdenv.isDarwin [ libicns ];
 
   buildInputs = [ ncurses lua SDL2 SDL2_image SDL2_ttf SDL2_mixer freetype gettext ]
     ++ stdenv.lib.optionals stdenv.isDarwin [ Cocoa ];
@@ -34,9 +35,25 @@ stdenv.mkDerivation rec {
     "OSX_MIN=10.6"  # SDL for macOS only supports deploying on 10.6 and above
   ];
 
+  postBuild = ''
+    # iconutil on macOS is not available in nixpkgs
+    png2icns data/osx/AppIcon.icns data/osx/AppIcon.iconset/*
+  '';
+
   postInstall = ''
     wrapProgram $out/bin/cataclysm-tiles \
       --add-flags "--datadir $out/share/"
+  '' + stdenv.lib.optionalString stdenv.isDarwin ''
+    app=$out/Applications/Cataclysm.app
+    install -D -m 444 data/osx/Info.plist -t $app/Contents
+    install -D -m 444 data/osx/AppIcon.icns -t $app/Contents/Resources
+    mkdir $app/Contents/MacOS
+    launcher=$app/Contents/MacOS/Cataclysm.sh
+    cat << SCRIPT > $launcher
+    #!/bin/sh
+    $out/bin/cataclysm-tiles
+    SCRIPT
+    chmod 555 $launcher
   '';
 
   # Disable, possible problems with hydra
diff --git a/pkgs/games/cataclysm-dda/git.nix b/pkgs/games/cataclysm-dda/git.nix
index 7d79b1347861..3162f2ecb259 100644
--- a/pkgs/games/cataclysm-dda/git.nix
+++ b/pkgs/games/cataclysm-dda/git.nix
@@ -36,6 +36,17 @@ stdenv.mkDerivation rec {
   postInstall = ''
     wrapProgram $out/bin/cataclysm-tiles \
       --add-flags "--datadir $out/share/cataclysm-dda/"
+  '' + stdenv.lib.optionalString stdenv.isDarwin ''
+    app=$out/Applications/Cataclysm.app
+    install -D -m 444 data/osx/Info.plist -t $app/Contents
+    install -D -m 444 data/osx/AppIcon.icns -t $app/Contents/Resources
+    mkdir $app/Contents/MacOS
+    launcher=$app/Contents/MacOS/Cataclysm.sh
+    cat << SCRIPT > $launcher
+    #!/bin/sh
+    $out/bin/cataclysm-tiles
+    SCRIPT
+    chmod 555 $launcher
   '';
 
   # https://hydra.nixos.org/build/65193254