From 21c7002c680759995b7a6850ca4400045bd0aa31 Mon Sep 17 00:00:00 2001
From: Luflosi <luflosi@luflosi.de>
Date: Fri, 20 Mar 2020 23:59:58 +0100
Subject: [PATCH] Add support for png2icns as an alternative to iconutil

png2icns is used when building kitty with nix because iconutil seems to be closed-source.
libicns also has an iconutil clone called icnsutil in the source tree but the last release is from 2012, which does not include this utility yet.
---
 setup.py | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/setup.py b/setup.py
index df3e7d56e..917d29e6a 100755
--- a/setup.py
+++ b/setup.py
@@ -859,10 +859,23 @@ def macos_info_plist() -> bytes:
 
 def create_macos_app_icon(where: str = 'Resources') -> None:
     iconset_dir = os.path.abspath(os.path.join('logo', appname + '.iconset'))
-    subprocess.check_call([
-        'iconutil', '-c', 'icns', iconset_dir, '-o',
-        os.path.join(where, appname + '.icns')
-    ])
+    icns_dir = os.path.join(where, appname + '.icns')
+    try:
+        subprocess.check_call([
+            'iconutil', '-c', 'icns', iconset_dir, '-o', icns_dir
+        ])
+    except FileNotFoundError:
+        print(error('iconutil not found') + ', using png2icns (without retina support) to convert the logo', file=sys.stderr)
+        subprocess.check_call([
+            'png2icns', icns_dir
+        ] + [os.path.join(iconset_dir, logo) for logo in [
+            # png2icns does not support retina icons, so only pass the non-retina icons
+            'icon_16x16.png',
+            'icon_32x32.png',
+            'icon_128x128.png',
+            'icon_256x256.png',
+            'icon_512x512.png',
+        ]])
 
 
 def create_minimal_macos_bundle(args: Options, where: str) -> None: