From 71b0e0fb94f4cd5102fb0ece4fdccf2a97649367 Mon Sep 17 00:00:00 2001
From: Junegunn Choi <junegunn.c@gmail.com>
Date: Fri, 17 May 2024 21:48:08 +0900
Subject: [PATCH] [Changes] Fix 'List index out of range: 0' error

Ignore change item that points to a non-existent line
---
 autoload/fzf/vim.vim | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/autoload/fzf/vim.vim b/autoload/fzf/vim.vim
index c2e57c5..8e9fd9f 100755
--- a/autoload/fzf/vim.vim
+++ b/autoload/fzf/vim.vim
@@ -1218,7 +1218,11 @@ endfunction
 " ------------------------------------------------------------------
 
 function! s:format_change(bufnr, offset, item)
-  return printf("%3d  %s  %4d  %3d  %s", a:bufnr, s:yellow(printf('%6s', a:offset)), a:item.lnum, a:item.col, getbufline(a:bufnr, a:item.lnum)[0])
+  let buflines = getbufline(a:bufnr, a:item.lnum)
+  if empty(buflines)
+    return ''
+  endif
+  return printf("%3d  %s  %4d  %3d  %s", a:bufnr, s:yellow(printf('%6s', a:offset)), a:item.lnum, a:item.col, buflines[0])
 endfunction
 
 function! s:changes_sink(lines)
@@ -1260,7 +1264,7 @@ function! fzf#vim#changes(...)
     if current
       let cursor = len(changes) - position_or_length
     endif
-    let all_changes += map(reverse(changes), { idx, val -> s:format_change(bufnr, s:format_change_offset(current, idx, cursor), val) })
+    let all_changes += filter(map(reverse(changes), { idx, val -> s:format_change(bufnr, s:format_change_offset(current, idx, cursor), val) }), '!empty(v:val)')
   endfor
 
   return s:fzf('changes', {