From 9fb2c88df488086746ecfd1e1bd7fbdec7b987b0 Mon Sep 17 00:00:00 2001
From: Gabriel Ebner <gebner@gebner.org>
Date: Mon, 17 Aug 2020 19:16:59 +0200
Subject: [PATCH] source-han-*: reduce closure size by 2x

The file name of the installed font was the path returned by fetchurl:
`xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx-SourceHanSans.ttc`

This caused the derivation to reference the downloaded font file,
storing the font twice unless you optimise the store (each file is
~150M).
---
 pkgs/data/fonts/source-han/default.nix | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pkgs/data/fonts/source-han/default.nix b/pkgs/data/fonts/source-han/default.nix
index 7b6bef0198da..28ec08f63b6d 100644
--- a/pkgs/data/fonts/source-han/default.nix
+++ b/pkgs/data/fonts/source-han/default.nix
@@ -19,7 +19,8 @@ let
     version = lib.removeSuffix "R" rev;
 
     buildCommand = ''
-      install -m444 -Dt $out/share/fonts/opentype/source-han-${family} ${ttc}
+      mkdir -p $out/share/fonts/opentype/source-han-${family}
+      ln -s ${ttc} $out/share/fonts/opentype/source-han-${family}/SourceHan${Family}.ttc
     '';
 
     meta = {