From 68fef9c2fd9d4a21b500cc2249b6711a71c6fb9f Mon Sep 17 00:00:00 2001
From: Jan Edmund Lazo <jan.lazo@mail.utoronto.ca>
Date: Sun, 3 Nov 2019 21:10:37 -0500
Subject: [PATCH] Delete batchfile only if it exists (#901)

Close #900
---
 plug.vim | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/plug.vim b/plug.vim
index ab0e082..02fac8d 100644
--- a/plug.vim
+++ b/plug.vim
@@ -822,6 +822,7 @@ function! s:chsh(swap)
 endfunction
 
 function! s:bang(cmd, ...)
+  let batchfile = ''
   try
     let [sh, shellcmdflag, shrd] = s:chsh(a:0)
     " FIXME: Escaping is incomplete. We could use shellescape with eval,
@@ -835,7 +836,7 @@ function! s:bang(cmd, ...)
   finally
     unlet g:_plug_bang
     let [&shell, &shellcmdflag, &shellredir] = [sh, shellcmdflag, shrd]
-    if s:is_win
+    if s:is_win && filereadable(batchfile)
       call delete(batchfile)
     endif
   endtry
@@ -2047,6 +2048,7 @@ function! s:with_cd(cmd, dir, ...)
 endfunction
 
 function! s:system(cmd, ...)
+  let batchfile = ''
   try
     let [sh, shellcmdflag, shrd] = s:chsh(1)
     let cmd = a:0 > 0 ? s:with_cd(a:cmd, a:1) : a:cmd
@@ -2056,7 +2058,7 @@ function! s:system(cmd, ...)
     return system(cmd)
   finally
     let [&shell, &shellcmdflag, &shellredir] = [sh, shellcmdflag, shrd]
-    if s:is_win
+    if s:is_win && filereadable(batchfile)
       call delete(batchfile)
     endif
   endtry
@@ -2379,6 +2381,7 @@ function! s:preview_commit()
     wincmd P
   endif
   setlocal previewwindow filetype=git buftype=nofile nobuflisted modifiable
+  let batchfile = ''
   try
     let [sh, shellcmdflag, shrd] = s:chsh(1)
     let cmd = 'cd '.plug#shellescape(g:plugs[name].dir).' && git show --no-color --pretty=medium '.sha
@@ -2388,7 +2391,7 @@ function! s:preview_commit()
     execute 'silent %!' cmd
   finally
     let [&shell, &shellcmdflag, &shellredir] = [sh, shellcmdflag, shrd]
-    if s:is_win
+    if s:is_win && filereadable(batchfile)
       call delete(batchfile)
     endif
   endtry