I broke up with neovim....vim is my best friend now

dot_vim/plugged/ale/ale_linters/puppet/languageserver.vim

@@ -0,0 +1,37 @@
+" Author: Alexander Olofsson <alexander.olofsson@liu.se>
+" Description: Puppet Language Server integration for ALE
+
+call ale#Set('puppet_languageserver_executable', 'puppet-languageserver')
+
+function! ale_linters#puppet#languageserver#GetProjectRoot(buffer) abort
+    " Note: The metadata.json file is recommended for Puppet 4+ modules, but
+    " there's no requirement to have it, so fall back to the other possible
+    " Puppet module directories
+    let l:root_path = ale#path#FindNearestFile(a:buffer, 'metadata.json')
+
+    if !empty(l:root_path)
+        return fnamemodify(l:root_path, ':h')
+    endif
+
+    for l:test_path in [
+    \   'manifests',
+    \   'templates',
+    \]
+        let l:root_path = ale#path#FindNearestDirectory(a:buffer, l:test_path)
+
+        if !empty(l:root_path)
+            return fnamemodify(l:root_path, ':h:h')
+        endif
+    endfor
+
+    return ''
+endfunction
+
+call ale#linter#Define('puppet', {
+\   'name': 'languageserver',
+\   'lsp': 'stdio',
+\   'executable': {b -> ale#Var(b, 'puppet_languageserver_executable')},
+\   'command': '%e --stdio',
+\   'language': 'puppet',
+\   'project_root': function('ale_linters#puppet#languageserver#GetProjectRoot'),
+\})