From f8b311b289c826e21bd6eef457b9e662bb89dbac Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sun, 21 Apr 2019 11:07:37 +0530
Subject: [PATCH] Cache calls to fc_match since FcFontMatch is very slow

Fixes #1547
---
 kitty/fonts/fontconfig.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/kitty/fonts/fontconfig.py b/kitty/fonts/fontconfig.py
index 1712443e6..6a00adee6 100644
--- a/kitty/fonts/fontconfig.py
+++ b/kitty/fonts/fontconfig.py
@@ -7,7 +7,7 @@ from functools import lru_cache
 
 from kitty.fast_data_types import (
     FC_SLANT_ITALIC, FC_SLANT_ROMAN, FC_WEIGHT_BOLD, FC_WEIGHT_REGULAR,
-    fc_list, fc_match,
+    fc_list, fc_match as fc_match_impl,
 )
 
 attr_map = {(False, False): 'font_family',
@@ -48,6 +48,11 @@ def family_name_to_key(family):
     return re.sub(r'\s+', ' ', family.lower())
 
 
+@lru_cache()
+def fc_match(family, bold, italic):
+    return fc_match_impl(family, bold, italic)
+
+
 def find_best_match(family, bold=False, italic=False, monospaced=True):
     q = family_name_to_key(family)
     font_map = all_fonts_map(monospaced)