From 9756e95bd596a303946a90f06f4efe51dcd57e87 Mon Sep 17 00:00:00 2001
From: Andy Stewart <boss@airbladesoftware.com>
Date: Tue, 13 Apr 2021 15:18:27 +0100
Subject: [PATCH] Fix resizing of existing non-floating hunk preview window

This bug was introduced by 9784226 in #708.  It had the effect of not
allowing an existing hunk preview window to increase in size for a
larger hunk (up to 'previewheight').

See #775.
---
 autoload/gitgutter/hunk.vim | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/autoload/gitgutter/hunk.vim b/autoload/gitgutter/hunk.vim
index eccf655..8ea6b24 100644
--- a/autoload/gitgutter/hunk.vim
+++ b/autoload/gitgutter/hunk.vim
@@ -547,7 +547,8 @@ function! s:populate_hunk_preview_window(header, body)
     setlocal nomodified
 
     normal! G$
-    let height = min([winline(), &previewheight])
+    let hunk_height = max([body_length, winline()])
+    let height = min([hunk_height, &previewheight])
     execute 'resize' height
     1