:ensure does not work with byte-compiled .emacs

[ywwry66]

I have these lines near the top of my .emacs file:

<...some code about package.el...>
(package-initialize)
(eval-when-compile
  (require 'use-package))
(require 'use-package-ensure)
(setq use-package-always-ensure t)
(use-package diminish :demand t)

If I manually delete 'diminish package, I would expect it to be reinstalled automatically upon loading .emacs, since use-package-always-ensure is set to t.

This works as expected if .emacs is not byte-compiled.

When .emacs is byte-compiled, I got error message "Error (use-package): Cannot load diminish", and 'diminish was not downloaded to my disk. If I then evaluate (use-package-ensure-elpa 'diminish '(t) '(:demand t) (as the code in macro expansion suggests), 'diminish gets installed normally.

I was wondering if I am missing something or this is a bug.

[ywwry66]

In general, it boosts startup speed of emacs if you have lots of custom functions in your .emacs. I guess this does not conflicts with the philosophy of use-package.

Here I just do it for fun since my .emacs file is quite compact.

On Aug 27, 2020, at 10:52 AM, D.K. [email protected] wrote:

What's the reason to use byte compilation with use-package?

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