From 3e6db7f70753c0a3efc2c2b5623af4dd64e332eb Mon Sep 17 00:00:00 2001
From: Jon Maciel <joaomaciel.n@gmail.com>
Date: Thu, 29 Oct 2020 15:33:05 -0300
Subject: [PATCH] feat: add a condition to outputs the rubocop_result just if
 not empty. It also helps to to add on BufWritePost

---
 plugin/rubocop.vim | 28 ++++++++++++++++------------
 1 file changed, 16 insertions(+), 12 deletions(-)

diff --git a/plugin/rubocop.vim b/plugin/rubocop.vim
index 2d98d4e..1147ed3 100644
--- a/plugin/rubocop.vim
+++ b/plugin/rubocop.vim
@@ -54,18 +54,22 @@ function! s:RuboCop(current_args)
   endif
   let l:rubocop_output  = substitute(l:rubocop_output, '\\"', "'", 'g')
   let l:rubocop_results = split(l:rubocop_output, "\n")
-  cexpr l:rubocop_results
-  copen
-  " Shortcuts taken from Ack.vim - git://github.com/mileszs/ack.vim.git
-  exec "nnoremap <silent> <buffer> q :ccl<CR>"
-  exec "nnoremap <silent> <buffer> t <C-W><CR><C-W>T"
-  exec "nnoremap <silent> <buffer> T <C-W><CR><C-W>TgT<C-W><C-W>"
-  exec "nnoremap <silent> <buffer> o <CR>"
-  exec "nnoremap <silent> <buffer> go <CR><C-W><C-W>"
-  exec "nnoremap <silent> <buffer> h <C-W><CR><C-W>K"
-  exec "nnoremap <silent> <buffer> H <C-W><CR><C-W>K<C-W>b"
-  exec "nnoremap <silent> <buffer> v <C-W><CR><C-W>H<C-W>b<C-W>J<C-W>t"
-  exec "nnoremap <silent> <buffer> gv <C-W><CR><C-W>H<C-W>b<C-W>J"
+
+  if !empty(l:rubocop_results)
+    cexpr l:rubocop_results
+    copen
+
+    " Shortcuts taken from Ack.vim - git://github.com/mileszs/ack.vim.git
+    exec "nnoremap <silent> <buffer> q :ccl<CR>"
+    exec "nnoremap <silent> <buffer> t <C-W><CR><C-W>T"
+    exec "nnoremap <silent> <buffer> T <C-W><CR><C-W>TgT<C-W><C-W>"
+    exec "nnoremap <silent> <buffer> o <CR>"
+    exec "nnoremap <silent> <buffer> go <CR><C-W><C-W>"
+    exec "nnoremap <silent> <buffer> h <C-W><CR><C-W>K"
+    exec "nnoremap <silent> <buffer> H <C-W><CR><C-W>K<C-W>b"
+    exec "nnoremap <silent> <buffer> v <C-W><CR><C-W>H<C-W>b<C-W>J<C-W>t"
+    exec "nnoremap <silent> <buffer> gv <C-W><CR><C-W>H<C-W>b<C-W>J"
+  endif
 endfunction
 
 command! -complete=custom,s:RuboCopSwitches -nargs=? RuboCop :call <SID>RuboCop(<q-args>)