Does not work with Powershell in Windows

[xunilrj]

When a different shell is configured on Windows (for example, Powershell), some of the shell power is lost using the .cmd approach.

https://github.com/skywind3000/asyncrun.vim/blob/master/plugin/asyncrun.vim#L582

let l:tmp = fnamemodify(tempname(), ':h') . '\asyncrun.cmd'
let l:run = ['@echo off', a:cmd]
call writefile(l:run, l:tmp)
let l:args += [l:tmp]

for example:

:! 1+1

works with Powershell configured, but

:AsyncRun 1+1

does not work, because it is not a valid .cmd syntax. I have made a simple change in my asyncrun.vim that enables me to work with any powershell expression:

let l:run = [&shell . " " . a:cmd]

Please let me know if you have any other suggestion to makes this work, or need help to implement this.

[ericmccarthy7]

My guess is it has something to do with g:asyncrun_shell. Maybe try setting that to whatever shell you want to use.

https://github.com/skywind3000/asyncrun.vim/blob/master/plugin/asyncrun.vim#L561

I've been reading through the script a lot today. Let me know if that helps!

EDIT: Looks like something similar was asked? -> #53

EDIT 2:

Ok I see where it happens.

https://github.com/skywind3000/asyncrun.vim/blob/master/plugin/asyncrun.vim#L582

Maybe rewrite this part so that it works in powershell, test it on a fresh install and submit a PR. Not sure how receptive @skywind3000 is to something like that.

[skywind3000]

It only supports cmd.exe on windows.

But there is an alternative way:

:AsyncRun powershell /C "1 + 3"