Fix #1115 - Add support for wrapping all commands with an option

autoload/ale/engine.vim

@@ -512,7 +512,7 @@ function! s:RunJob(options) abort
         endif
     endif
 
-    let l:command = ale#job#PrepareCommand(l:command)
+    let l:command = ale#job#PrepareCommand(l:buffer, l:command)
     let l:job_options = {
     \   'mode': 'nl',
     \   'exit_cb': function('s:HandleExit'),

autoload/ale/fix.vim

@@ -222,7 +222,7 @@ function! s:RunJob(options) abort
     \)
     call s:CreateTemporaryFileForJob(l:buffer, l:temporary_file, l:input)
 
-    let l:command = ale#job#PrepareCommand(l:command)
+    let l:command = ale#job#PrepareCommand(l:buffer, l:command)
     let l:job_options = {
     \   'mode': 'nl',
     \   'exit_cb': function('s:HandleExit'),

autoload/ale/job.vim

@@ -165,23 +165,54 @@ function! ale#job#ValidateArguments(command, options) abort
     endif
 endfunction
 
-function! ale#job#PrepareCommand(command) abort
+function! s:PrepareWrappedCommand(original_wrapper, command) abort
+    let l:match = matchlist(a:command, '\v^(.*(\&\&|;)) *(.*)$')
+    let l:prefix = ''
+    let l:command = a:command
+
+    if !empty(l:match)
+        let l:prefix = l:match[1] . ' '
+        let l:command = l:match[3]
+    endif
+
+    let l:format = a:original_wrapper
+
+    if l:format =~# '%@'
+        let l:wrapped = substitute(l:format, '%@', ale#Escape(l:command), '')
+    else
+        if l:format !~# '%\*'
+            let l:format .= ' %*'
+        endif
+
+        let l:wrapped = substitute(l:format, '%\*', l:command, '')
+    endif
+
+    return l:prefix . l:wrapped
+endfunction
+
+function! ale#job#PrepareCommand(buffer, command) abort
+    let l:wrapper = ale#Var(a:buffer, 'command_wrapper')
+
+    let l:command = !empty(l:wrapper)
+    \ ? s:PrepareWrappedCommand(l:wrapper, a:command)
+    \ : a:command
+
     " The command will be executed in a subshell. This fixes a number of
     " issues, including reading the PATH variables correctly, %PATHEXT%
     " expansion on Windows, etc.
     "
     " NeoVim handles this issue automatically if the command is a String,
-    " but we'll do this explicitly, so we use thes same exact command for both
+    " but we'll do this explicitly, so we use the same exact command for both
     " versions.
-    if ale#Has('win32')
-        return 'cmd /c ' . a:command
+    if has('win32')
+        return 'cmd /c ' . l:command
     endif
 
     if &shell =~? 'fish$'
-        return ['/bin/sh', '-c', a:command]
+        return ['/bin/sh', '-c', l:command]
     endif
 
-    return split(&shell) + split(&shellcmdflag) + [a:command]
+    return split(&shell) + split(&shellcmdflag) + [l:command]
 endfunction
 
 " Start a job with options which are agnostic to Vim and NeoVim.

autoload/ale/linter.vim

@@ -1,3 +1,4 @@
+call ale#Set('wrap_command_as_one_argument', 0)
 " Author: w0rp <devw0rp@gmail.com>
 " Description: Linter registration and lazy-loading
 "   Retrieves linters as requested by the engine, loading them if needed.
@@ -432,6 +433,7 @@ function! ale#linter#StartLSP(buffer, linter, callback) abort
         endif
 
         let l:command = ale#job#PrepareCommand(
+        \   a:buffer,
         \   ale#linter#GetCommand(a:buffer, a:linter),
         \)
         let l:conn_id = ale#lsp#StartProgram(