emacs.d/packages/helm.el

(use-package helm
  :diminish helm-mode
  :demand t
  :bind (("M-x" . helm-M-x)
         ("C-x b" . helm-mini)
         ("M-y" . helm-show-kill-ring)
         ("C-x C-f" . helm-find-files)
         :map helm-map
              ("<tab>" . helm-execute-persistent-action)
              ("C-i" . helm-execute-persistent-action)
              ("C-z" . helm-select-action))
  :config
  (when (executable-find "curl")
    (setq helm-google-suggest-use-curl-p t))
  (helm-autoresize-mode 1)
  (eval-after-load 'company
    '(progn
       (define-key company-mode-map (kbd "C-:") 'helm-company)
       (define-key company-active-map (kbd "C-:") 'helm-company)))
  (helm-mode 1))

(use-package helm-projectile)

(use-package helm-company)

(use-package helm-ag)