Add PackerSync command

roles/neovim/files/init.vim

@@ -3,7 +3,7 @@ lua require('encoding')
 lua require('remaps')
 lua require('spacetabs')
 lua require('plugins')
-lua require('colors')
+"lua require('colors')
 
 "set runtimepath^=~/.vim runtimepath+=~/.vim/after
 "let &packpath = &runtimepath

roles/neovim/tasks/main.yml

@@ -75,3 +75,8 @@
   copy:
     src: lua
     dest: ~/.config/nvim/
+
+- name: Run PackerSync
+  command: "nvim --headless -c 'autocmd User PackerComplete quitall' -c 'PackerSync'"
+  register: result
+  changed_when: "'Everything already up to date' not in result.stdout"  # TODO: finish this, it will never run with headless