From cd4afaca45e8f6451fc94f0b973d7c4a0cd49d92 Mon Sep 17 00:00:00 2001
From: Yegor Timoshenko <yegortimoshenko@riseup.net>
Date: Sat, 24 Feb 2018 11:49:40 +0000
Subject: [PATCH] papirus-icon-theme: build GTK icon cache

---
 .../data/icons/papirus-icon-theme/default.nix | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/pkgs/data/icons/papirus-icon-theme/default.nix b/pkgs/data/icons/papirus-icon-theme/default.nix
index ef817a2e3f47..ec3c671e2fd9 100644
--- a/pkgs/data/icons/papirus-icon-theme/default.nix
+++ b/pkgs/data/icons/papirus-icon-theme/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub }:
+{ stdenv, fetchFromGitHub, gtk3 }:
 
 stdenv.mkDerivation rec {
   name = "papirus-icon-theme-${version}";
@@ -7,20 +7,25 @@ stdenv.mkDerivation rec {
   src = fetchFromGitHub {
     owner = "PapirusDevelopmentTeam";
     repo = "papirus-icon-theme";
-    rev = "${version}";
+    rev = version;
     sha256 = "10q7ppizzqi8c564jydqivia43gp4j1z984igfyym2mdwdw71mzq";
   };
 
-  dontBuild = true;
+  nativeBuildInputs = [ gtk3 ];
 
   installPhase = ''
-     install -dm 755 $out/share/icons
-     cp -dr Papirus{,-Dark,-Light} $out/share/icons/
-     cp -dr ePapirus $out/share/icons/
+     mkdir -p $out/share/icons
+     mv {,e}Papirus* $out/share/icons
+  '';
+
+  postFixup = ''
+    for theme in $out/share/icons/*; do
+      gtk-update-icon-cache $theme
+    done
   '';
 
   meta = with stdenv.lib; {
-    description = "Papirus icon theme for Linux";
+    description = "Papirus icon theme";
     homepage = https://github.com/PapirusDevelopmentTeam/papirus-icon-theme;
     license = licenses.lgpl3;
     platforms = platforms.all;