Run :cwindow after :Neomake finishes

Question

How do I attach a callback to :NeomakeProject so that :cwindow is executed after compilation finishes?

i.e. I'm too lazy and want everything (open the error list) to happen automatically. (currently I'm opening :cwindow with a shortcut)

/callback in :help neomake shows that neomake#Make() accepts a callback as third argument but this doesn't seem to be connected to my problem as it's a function, called internally by :Neomake

Googling for "neovim job control" shows that callbacks are set as argument to the jobstart function. A search for jobstart in the neomake repository shows that neomake sets neomake#MakeHandler as a callback. And the fact that this function is 98 lines long stopped my further research.

Answer 1

Neomake runs a user autocmd called NeomakeFinished when it's done. It sets the context variable: g:neomake_hook_context.file_mode. If it's 1 it's using the location list.

If you only want it to run when it's finished with a project:

autocmd User NeomakeFinished if !g:neomake_hook_context.file_mode | cwindow | endif

There is also an option:

*g:neomake_open_list*

This setting will open the |loclist| or |quickfix| list (depending on whether it is operating on a file) when adding entries. A value of 2 will preserve the cursor position when the |loclist| or |quickfix| window is opened. Defaults to 0.

Answer 2

I don't know first hand if it works with your fork but the following snippets works perfectly in real Vim:

augroup qf
    autocmd!

    " automatically open the location/quickfix window after :make, :grep,
    " :lvimgrep and friends if there are valid locations/errors
    autocmd QuickFixCmdPost [^l]* cwindow
    autocmd QuickFixCmdPost l*    lwindow
augroup END