 (global-set-key (kbd "C-x c r") 'helm-recentf)
 (global-set-key (kbd "C-x c b") 'helm-mini)
 (global-set-key (kbd "C-x c o") 'helm-occur)
+(global-set-key (kbd "C-x C-f") 'helm-find-files)
 
 ;;; set helm-ls-git
 (require 'helm-ls-git)

(menu-bar-mode -1)
(tool-bar-mode -1)
(scroll-bar-mode -1)
; set `bs-show` to default buffer list
(global-set-key (kbd "C-x C-b") 'bs-show)
;;; set `revert-buffer` to `M-r`
(global-set-key (kbd "M-r") 'revert-buffer)
(global-auto-revert-mode 1)

(setq recentf-exclude
      '("/TAGS$" "/var/tmp/"))

;;; flycheck
(require 'flycheck)
(global-flycheck-mode)
