Ensuring binary packages with use-package

Question

I just started organizing my packages with use-package because I need the simple transition between few computers. I use few binary programs asynchronously, and been therefor searching for solution that lets me maintain them along Emacs packages.

It seems pretty easy with use-package, but I am constantly getting errors like:

Error (use-package): Cannot load ag

I tried to supply optional installation command as second argument to the keyword :ensure-system-package, still error is the same for my setup.

(use-package ag
  :ensure-system-package (ag . "wajig install ag")
  :config
  (use-package helm-ag-r :ensure t))

Answer 1

I think that all you're missing is :ensure t for ag itself:

(use-package ag
  :ensure t
  :ensure-system-package (ag . "wajig install ag")
  :config
  (use-package helm-ag-r :ensure t))