From 241f324b39a89e8e6d3ba3b78f2f048a9172dffe Mon Sep 17 00:00:00 2001
From: Grzegorz Milka <grzegorzmilka@gmail.com>
Date: Sun, 20 Nov 2016 10:16:13 +0100
Subject: [PATCH] Do not forward v:shell_error on command fail.

airline#system#util for nvim used to fall back to 'system' implementation on
command error. This behavior caused conflict with other plugins if 'util' was
executed with a failing command as part of a ShellCmdPost event.

This commit makes 'util' interpret command error as persistent and not call
'system' in such a case.

This commit fixes #1317.
---
 autoload/airline/util.vim | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/autoload/airline/util.vim b/autoload/airline/util.vim
index c05f3b16..72406aed 100644
--- a/autoload/airline/util.vim
+++ b/autoload/airline/util.vim
@@ -97,10 +97,7 @@ if has('nvim')
     if l:id < 1
       return system(a:cmd)
     endif
-    let l:ret_code = jobwait([l:id])
-    if l:ret_code != [0]
-      return system(a:cmd)
-    endif
+    call jobwait([l:id])
     return l:config.buf
   endfunction
 else