#2009 - Force Windows jobs to run in a CMD shell

autoload/ale/command.vim

@@ -293,6 +293,8 @@ function! ale#command#Run(buffer, command, Callback, options) abort
             let s:fake_job_id = get(s:, 'fake_job_id', 0) + 1
             let l:job_id = s:fake_job_id
         endif
+    elseif has('win32')
+        let l:job_id = ale#job#StartWithCmd(l:command, l:job_options)
     else
         let l:job_id = ale#job#Start(l:command, l:job_options)
     endif

autoload/ale/job.vim

@@ -276,6 +276,24 @@ function! ale#job#Start(command, options) abort
     return l:job_id
 endfunction
 
+" Force running commands in a Windows CMD command line.
+" This means the same command syntax works everywhere.
+function! ale#job#StartWithCmd(command, options) abort
+    let l:shell = &l:shell
+    let l:shellcmdflag = &l:shellcmdflag
+    let &l:shell = 'cmd'
+    let &l:shellcmdflag = '/c'
+
+    try
+        let l:job_id = ale#job#Start(a:command, a:options)
+    finally
+        let &l:shell = l:shell
+        let &l:shellcmdflag = l:shellcmdflag
+    endtry
+
+    return l:job_id
+endfunction
+
 " Send raw data to the job.
 function! ale#job#SendRaw(job_id, string) abort
     if has('nvim')

autoload/ale/lsp.vim

@@ -331,7 +331,12 @@ function! ale#lsp#StartProgram(conn_id, executable, command) abort
         \   'mode': 'raw',
         \   'out_cb': {_, message -> ale#lsp#HandleMessage(a:conn_id, message)},
         \}
-        let l:job_id = ale#job#Start(a:command, l:options)
+
+        if has('win32')
+            let l:job_id = ale#job#StartWithCmd(a:command, l:options)
+        else
+            let l:job_id = ale#job#Start(a:command, l:options)
+        endif
     else
         let l:job_id = l:conn.job_id
     endif