From 9a1f14d05c12681f0c0b6a155f939b3690e95a2e Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sat, 4 Aug 2018 17:30:45 +0530
Subject: [PATCH] diff kitten: Do not highlight extremely large files

python's asyncio module has no way to tell a process executor object to
kill its worker processes, so highlighting very large files cause the
kitten to hang around o exit till the highlighting is done
---
 kittens/diff/highlight.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kittens/diff/highlight.py b/kittens/diff/highlight.py
index da7650cde..c159ff7e9 100644
--- a/kittens/diff/highlight.py
+++ b/kittens/diff/highlight.py
@@ -122,6 +122,8 @@ def highlight_line(line):
 def highlight_for_diff(path, aliases):
     ans = []
     lines = lines_for_path(path)
+    if len(lines) > 10000:
+        return ans
     hd = highlight_data('\n'.join(lines), path, aliases)
     if hd is not None:
         for line in hd.splitlines():