;;; use-package-diminish.el --- Support for the :diminish keyword  -*- lexical-binding: t; -*-

;; Copyright (C) 2012-2017 John Wiegley

;; Author: John Wiegley <johnw@newartisans.com>
;; Maintainer: John Wiegley <johnw@newartisans.com>
;; Created: 17 Jun 2012
;; Modified: 3 Dec 2017
;; Version: 1.0
;; Package-Requires: ((emacs "24.3") (use-package "2.4"))
;; Keywords: dotemacs startup speed config package
;; URL: https://github.com/jwiegley/use-package

;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the GNU General Public License as
;; published by the Free Software Foundation; either version 3, or (at
;; your option) any later version.

;; This program is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
;; General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING.  If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.

;;; Commentary:

;; Provides support for the :diminish keyword, which is made available by
;; default by requiring `use-package'.

;;; Code:

(require 'use-package-core)

(defun use-package-normalize-diminish (name label arg &optional recursed)
  "Normalize the arguments to diminish down to a list of one of two forms:
     SYMBOL
     (SYMBOL . STRING)"
  (cond
   ((not arg)
    (list (use-package-as-mode name)))
   ((use-package-non-nil-symbolp arg)
    (list arg))
   ((stringp arg)
    (list (cons (use-package-as-mode name) arg)))
   ((and (consp arg) (stringp (cdr arg)))
    (list arg))
   ((and (not recursed) (listp arg) (listp (cdr arg)))
    (mapcar #'(lambda (x) (car (use-package-normalize-diminish
                           name label x t))) arg))
   (t
    (use-package-error
     (concat label " wants a string, symbol, "
             "(symbol . string) or list of these")))))

;;;###autoload
(defun use-package-normalize/:diminish (name keyword args)
  (use-package-as-one (symbol-name keyword) args
    (apply-partially #'use-package-normalize-diminish name) t))

;;;###autoload
(defun use-package-handler/:diminish (name _keyword arg rest state)
  (let ((body (use-package-process-keywords name rest state)))
    (use-package-concat
     (mapcar #'(lambda (var)
                 `(if (fboundp 'diminish)
                      ,(if (consp var)
                           `(diminish ',(car var) ,(cdr var))
                         `(diminish ',var))))
             arg)
     body)))

(add-to-list 'use-package-keywords :diminish t)

(provide 'use-package-diminish)

;;; use-package-diminish.el ends here