Add redir

config/redir.vim

@@ -0,0 +1,30 @@
+function! Redir(cmd, rng, start, end)
+  for win in range(1, winnr('$'))
+    if getwinvar(win, 'scratch')
+      execute win . 'windo close'
+    endif
+  endfor
+  if a:cmd =~ '^!'
+    let cmd = a:cmd =~' %'
+      \ ? matchstr(substitute(a:cmd, ' %', ' ' . expand('%:p'), ''), '^!\zs.*')
+      \ : matchstr(a:cmd, '^!\zs.*')
+    if a:rng == 0
+      let output = systemlist(cmd)
+    else
+      let joined_lines = join(getline(a:start, a:end), '\n')
+      let cleaned_lines = substitute(shellescape(joined_lines), "'\\\\''", "\\\\'", 'g')
+      let output = systemlist(cmd . " <<< $" . cleaned_lines)
+    endif
+  else
+    redir => output
+    execute a:cmd
+    redir END
+    let output = split(output, "\n")
+  endif
+  vnew
+  let w:scratch = 1
+  setlocal buftype=nofile bufhidden=wipe nobuflisted noswapfile
+  call setline(1, output)
+endfunction
+
+command! -nargs=1 -complete=command -bar -range Redir silent call Redir(<q-args>, <range>, <line1>, <line2>)

vimrc

@@ -24,6 +24,7 @@ source $VIMHOME/config/language-client.vim
 source $VIMHOME/config/mucomplete.vim
 source $VIMHOME/config/nerdtree.vim
 source $VIMHOME/config/powerline.vim
+source $VIMHOME/config/redir.vim
 source $VIMHOME/config/rg.vim
 source $VIMHOME/config/theme.vim " this sets the colorscheme
 source $VIMHOME/config/vim-go.vim