From 7c26be61bb5a405f28ae230cd3602ecb6e30a3a9 Mon Sep 17 00:00:00 2001
From: Jan Edmund Lazo <jan.lazo@mail.utoronto.ca>
Date: Sun, 27 Oct 2019 11:28:13 -0400
Subject: [PATCH] vim-patch:8.1.1245: ":copen 10" sets height in full-height
 window

Problem:    ":copen 10" sets height in full-height window. (Daniel Hahler)
Solution:   Don't set the height if the quickfix window is full height.
            (closes vim/vim#4325)
https://github.com/vim/vim/commit/36d502225c3ec5e8b30771d58ee20171ce564b2f
---
 src/nvim/quickfix.c                | 3 ++-
 src/nvim/testdir/test_quickfix.vim | 9 +++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/nvim/quickfix.c b/src/nvim/quickfix.c
index 8f891751d6..d900ea3c70 100644
--- a/src/nvim/quickfix.c
+++ b/src/nvim/quickfix.c
@@ -3164,7 +3164,8 @@ static int qf_goto_cwindow(const qf_info_T *qi, bool resize, int sz,
       if (sz != win->w_width) {
         win_setwidth(sz);
       }
-    } else if (sz != win->w_height) {
+    } else if (sz != win->w_height
+               && win->w_height + win->w_status_height < cmdline_row) {
       win_setheight(sz);
     }
   }
diff --git a/src/nvim/testdir/test_quickfix.vim b/src/nvim/testdir/test_quickfix.vim
index 6f58b0084c..2eb20e61bd 100644
--- a/src/nvim/testdir/test_quickfix.vim
+++ b/src/nvim/testdir/test_quickfix.vim
@@ -273,6 +273,15 @@ func Test_cwindow()
   call XwindowTests('l')
 endfunc
 
+func Test_copenHeight()
+  copen
+  wincmd H
+  let height = winheight(0)
+  copen 10
+  call assert_equal(height, winheight(0))
+  quit
+endfunc
+
 " Tests for the :cfile, :lfile, :caddfile, :laddfile, :cgetfile and :lgetfile
 " commands.
 func XfileTests(cchar)