ale#statusline#Count couldn't return a proper result

[blurm]

Hi, I try to integrate ale message into my own statusline function, and I found out ale#statusline#Count maybe the right method to call

below is a test code I put into init.vim (neovim)

function! LinterStatus() abort
    let l:counts = ale#statusline#Count(bufnr(''))

    let l:all_errors = l:counts.error + l:counts.style_error
    let l:all_non_errors = l:counts.total - l:all_errors

    return l:counts.total == 0 ? 'OK' : printf(
                \   '%dW %dE',
                \   all_non_errors,
                \   all_errors
                \)
endfunction

function! MyTest() abort
    let m = LinterStatus()
    echom m
endfunction

autocmd BufWinEnter,BufRead,BufReadPost,WinEnter,FileType * call MyTest()

ale plugin works perfectly, but the test script have problems

It doesn't work (print 'OK' with error files):

• run nvim file_with_error.py in terminal
• run :e file_with_error.py in neovim
  It works:
• run :vs in neovim
• :w save buffer if I add BufWrite in autocmd

[w0rp]

See :help <abuf>. bufnr('') might be returning a different buffer number. You also might be calling the function before linting has been completed.

[blurm]

The buffer number should be OK. I replaced with <abuf>, it print the same buf number.

How should I calling the function after linting completing?
I tried autocmd User ALELint echom "ALE run!" but it didn't executed

[w0rp]

The example in the documentation is wrong. I'll fix it so the autocmd can be used to echo things.

The autocmd is run with silent, so echo won't work.

[w0rp]

I updated the documentation in the end to include unsilent.

autocmd User ALELint unsilent echom 'ALE run!'

[blurm]

It works perfectly! Thanks!