s:open_quickfix also handles location list windows

[blueyed]

There is only one quickfix window per tab, so a loop should not be necessary with

vim-dispatch/autoload/dispatch.vim

Lines 851 to 871 in fc8d1e6

	function! s:open_quickfix(request, copen) abort
	let was_qf = &buftype ==# 'quickfix'
	execute 'botright' (a:copen ? 'copen' : 'cwindow')
	if &buftype ==# 'quickfix' && !was_qf && a:copen != 1
	wincmd p
	endif
	for winnr in range(1, winnr('$'))
	if getwinvar(winnr, '&buftype') ==# 'quickfix'
	call setwinvar(winnr, 'quickfix_title', ':' . a:request.expanded)
	let bufnr = winbufnr(winnr)
	call setbufvar(bufnr, '&efm', a:request.format)
	call setbufvar(bufnr, 'dispatch', escape(a:request.expanded, '%#'))
	if has_key(a:request, 'program')
	call setbufvar(bufnr, '&makeprg', a:request.program)
	endif
	if has_key(a:request, 'compiler')
	call setbufvar(bufnr, 'current_compiler', a:request.compiler)
	endif
	endif
	endfor
	endfunction

.

On the other hand, there does not seem to be a way to find the quickfix window / distinguish it from the location list windows?!

The main issue here is that quickfix_title gets set for e.g. a Syntastic / Neomake location list then.

[blueyed]

I've found something in vim-airline, which uses ls to get to that info (https://github.com/vim-airline/vim-airline/blob/master/autoload/airline/extensions/quickfix.vim#L20-L36):

function! s:get_text()
  redir => buffers
  silent ls
  redir END

  let nr = bufnr('%')
  for buf in split(buffers, '\n')
    if match(buf, '\v^\s*'.nr) > -1
      if match(buf, '\cQuickfix') > -1
        return g:airline#extensions#quickfix#quickfix_text
      else
        return g:airline#extensions#quickfix#location_text
      endif
    endif
  endfor
  return ''
endfunction

[blueyed]

Just for reference: the following patch would help by having a buffer variable for it: neovim/neovim#4550.