From 99cedb6c94d42fe3055256822aab4c526a4e59b2 Mon Sep 17 00:00:00 2001
From: jdhao <jdhao@hotmail.com>
Date: Sun, 8 Nov 2020 20:02:30 +0800
Subject: [PATCH] Do no show file time for not listed buffers.

---
 core/options.vim | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/core/options.vim b/core/options.vim
index 7722d0f..1e918d6 100644
--- a/core/options.vim
+++ b/core/options.vim
@@ -104,11 +104,20 @@ set autowrite
 " lastmod time is drawn from https://stackoverflow.com/q/8426736/6064933
 set title
 set titlestring=
-if g:is_linux
-  set titlestring+=%(%{hostname()}\ \ %)
-endif
-set titlestring+=%(%{expand('%:p:~')}\ \ %)
-set titlestring+=%{strftime('%Y-%m-%d\ %H:%M',getftime(expand('%')))}
+set titlestring=%{Get_titlestr()}
+
+function! Get_titlestr() abort
+  let l:title_str = ''
+  if g:is_linux
+      let l:title_str = hostname() . '  '
+  endif
+  let l:title_str = l:title_str . expand('%:p:~') . '  '
+  if &buflisted
+    let l:title_str = l:title_str . strftime('%Y-%m-%d %H:%M',getftime(expand('%')))
+  endif
+
+  return l:title_str
+endfunction
 
 " Persistent undo even after you close a file and re-open it
 set undofile