zsh:support autocomplete

1. autotrigger in YCM and deoplete.
2. press ^x^o in other case

autoload/SpaceVim/layers/lang/sh.vim

@@ -1,7 +1,12 @@
-function! SpaceVim#layers#lang#javascript#plugins() abort
-  return [
-      \ ['chrisbra/vim-zsh', { 'on_ft' : 'zsh' }]
-      \ ]
+function! SpaceVim#layers#lang#sh#plugins() abort
+    let l:plugins = []
+    call add(l:plugins, ['chrisbra/vim-zsh', { 'on_ft' : 'zsh' }])
+    if get(g:, 'spacevim_enable_ycm') == 1
+        call add(l:plugins, ['Valodim/vim-zsh-completion', { 'on_ft' : 'zsh' }])
+    else
+        call add(l:plugins, ['zchee/deoplete-zsh', { 'on_ft' : 'zsh' }])
+    endif
+    return l:plugins
 endfunction
 
 function! SpaceVim#layers#lang#sh#config()

config/plugins_before/YouCompleteMe.vim

@@ -19,5 +19,6 @@ let g:ycm_semantic_triggers =  {
             \   'ruby' : ['.', '::'],
             \   'lua' : ['.', ':'],
             \   'erlang' : [':'],
-            \   'sh' : ['re!\w{2}', '/', '-'],
+            \   'sh' : ['re![\w-]{2}', '/', '-'],
+            \   'zsh' : ['re![\w-]{2}', '/', '-'],
             \ }