(defun helm-add-hooks ()
  (let ((enabled-modes '(c c++ asm java python ocaml lisp gnuplot
						   haskell verilog ruby vhdl tuareg)))
    (loop for m in enabled-modes do
		  (add-hook (intern (concat (symbol-name m)
									"-mode-hook"))
					'helm-gtags-mode)))
  
  ;; initialize for helm-gtags
  (with-eval-after-load 'helm-gtags
    (define-key helm-gtags-mode-map
      (kbd "M-t") 'helm-gtags-find-tag)
    (define-key helm-gtags-mode-map
      (kbd "M-r") 'helm-gtags-find-rtag)
    (define-key helm-gtags-mode-map
      (kbd "M-s") 'helm-gtags-find-symbol)
    (define-key helm-gtags-mode-map
      (kbd "M-p") 'helm-gtags-find-pattern)
    (define-key helm-gtags-mode-map
      (kbd "M-g M-p") 'helm-gtags-parse-file)
    (define-key helm-gtags-mode-map
      (kbd "C-c <") 'helm-gtags-previous-history)
    (define-key helm-gtags-mode-map
      (kbd "C-c >") 'helm-gtags-next-history)
    (define-key helm-gtags-mode-map
      (kbd "C-c r") 'helm-gtags-resume)
    (define-key helm-gtags-mode-map
      (kbd "M-,") 'helm-gtags-pop-stack)))

(defun helm-conf ()
  (require 'helm-config)
  (helm-mode 1)
  (define-key global-map
    [remap find-file] 'helm-find-files)
  (define-key global-map
    [remap occur] 'helm-occur)
  (define-key global-map
    [remap list-buffers] 'helm-buffers-list)
  (define-key global-map
    [remap dabbrev-expand] 'helm-dabbrev)

  (global-set-key (kbd "M-x") 'helm-M-x)
  (global-set-key (kbd "C-c <tab>") 'helm-yas-complete)

  (unless (boundp 'completion-in-region-function)
    (define-key lisp-interaction-mode-map
      [remap completion-at-point]
      'helm-lisp-completion-at-point)
    (define-key emacs-lisp-mode-map
      [remap completion-at-point]
      'helm-lisp-completion-at-point))
  (helm-add-hooks))

(register-mypkg
 (list :name "helm"
       :enabled t
       :packages '(bind-key async yasnippet helm helm-core 
							helm-descbinds helm-proc 
							helm-gtags helm-git helm-flycheck
							helm-flyspell helm-flymake helm-fuzzier
							helm-fuzzy-find helm-ack helm-c-yasnippet
							helm-themes helm-package helm-ls-git)
       :config #'(lambda ()
				   (helm-conf))))