spacemacs/core/core-command-line.el

;;; core-command-line.el --- Spacemacs Core File
;;
;; Copyright (c) 2012-2014 Sylvain Benner
;; Copyright (c) 2014-2015 Sylvain Benner & Contributors
;;
;; Author: Sylvain Benner <sylvain.benner@gmail.com>
;; URL: https://github.com/syl20bnr/spacemacs
;;
;; This file is not part of GNU Emacs.
;;
;;; License: GPLv3

(defun spacemacs//parse-command-line (args)
  "Handle Spacemacs specific command line arguments.
The reason why we don't use the Emacs hooks for processing user defined
arguments is that we want to process these arguments as soon as possible."
  (let ((i 0) new-args)
    (while (< i (length args))
      (let ((arg (nth i args))
            (next-arg-digit
             (when (< (1+ i) (length args))
               (string-to-number (nth (1+ i ) args)))))
        (when (or (null next-arg-digit) (= 0 next-arg-digit))
          (setq next-arg-digit nil))
        (pcase arg
          ("--profile"
           (setq spacemacs-debug-with-profile t)
           (setq spacemacs-debugp t))
          ("--timed-requires"
           (setq spacemacs-debug-with-timed-requires t)
           (when next-arg-digit
             (setq spacemacs-debug-timer-threshold next-arg-digit
                   i (1+ i)))
           (setq spacemacs-debugp t))
          ("--adv-timers"
           (setq spacemacs-debug-with-adv-timers t)
           (when next-arg-digit
             (setq spacemacs-debug-timer-threshold next-arg-digit
                   i (1+ 1)))
           (setq spacemacs-debugp t))
          (_ (push arg new-args))))
      (setq i (1+ i)))
    (nreverse new-args)))

(setq command-line-args (spacemacs//parse-command-line command-line-args))

(provide 'core-command-line)