asyncdo.vim

" Author: hauleth on r/vim

func! s:populate(file, cmd) abort
unlet! t:job
try
    exe 'cgetfile '.a:file
finally
    call setqflist([], 'a', {'title': a:cmd})
endtry
endfunc

func! AsyncDo(...) abort
if exists('t:job')
    echoerr 'There is currently running job, just wait'
    return
endif

call setqflist([], 'r')
let tmp = tempname()
let cmd = join(a:000)

let g:qf_quickfix_titles = []
if has('nvim')
    let t:job = jobstart([&sh, &shcf, printf(cmd.&srr, tmp)], {
                \ 'on_exit': {id, data, event -> s:populate(tmp, cmd)}
                \ })
else
    let t:job = job_start([&sh, &shcf, printf(cmd.&srr, tmp)], {
                \ 'in_io': 'null','out_io': 'null','err_io': 'null',
                \ 'exit_cb': {job, result -> s:populate(tmp, cmd)}
                \ })
endif
endfunc

com! -nargs=+ AsyncDo call AsyncDo(<f-args>)