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Is there a command to display and automatically copy to clipboard both the current version of Emacs and the current version of org-mode?

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    That's pretty idiosyncratic, so you'll probably need to write it yourself. What have you tried?
    – Dan ♦
    Apr 22, 2017 at 18:22
  • Here's what I have. Doesn't work. (defun display-and-copy-version-info () "Echo the current version of Spacemacs, Emacs, and org-mode, and copy it." (interactive) (let ((msg (format "Spacemacs v.%s" spacemacs-version "Emacs" emacs-version "org-mode" org-version))) (message msg) (clipboard-kill-ring-save msg))) I feel like it would be useful to anyone who needs to submit issues for any package that's org-mode related.
    – incandescentman
    Apr 22, 2017 at 18:37
  • @incandescentman it looks like you're confusing between concat and format.
    – npostavs
    Apr 22, 2017 at 19:05
  • @npostavs When I change it to concat I get edebug-read-sexp: Lisp nesting exceeds ‘max-lisp-eval-depth’
    – incandescentman
    Apr 23, 2017 at 5:47
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    Not directly related, but may of interest in this context: the functions emacs-version and org-version take a prefix argument which says "put the output in this buffer". So if you are composing your bug report in emacs, all you have to do is C-u M-x emacs-version and C-u M-x org-version and you are done. You can also wrap the two calls into a single function of course, or bind them to keys.
    – NickD
    Apr 24, 2017 at 14:31

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I suggest you take a look at the doc string for function format, with C-h f format (M-x describe-function). It is similar to the C language printf, if you know that. The doc string for message includes:

(message FORMAT-STRING &rest ARGS)

Display a message at the bottom of the screen. The message also goes into the ‘Messages’ buffer, if ‘message-log-max’ is non-nil. (In keyboard macros, that’s all it does.) Return the message.

Also, the docstring for clipboard-kill-ring-save shows you don't call it with the proper arguments, and in fact is to be used when copying some text from a buffer, not from a string.

Searching for "kill-ring" in the index of the info elisp manual can bring to the section Low-Level Kill Ring where the function kill-new is described. Since message returns the displayed string, we can feed it directly to kill-new.

(defun display-and-copy-version-info ()
  "Echo the current version of Spacemacs, Emacs, and org-mode, and copy it."
  (interactive)
  (kill-new
     (message "Spacemacs v.%s Emacs %s org-mode %s"
              spacemacs-version emacs-version org-version)))
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  • You should use (message "%s" msg) to be safe (probably none of the versions will include a % so it doesn't really matter, but still...)
    – npostavs
    Apr 24, 2017 at 14:19
  • @npostavs Indeed, thanx.
    – JeanPierre
    Apr 24, 2017 at 14:23

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