diff options
Diffstat (limited to 'configs/shared/emacs/.emacs.d/elpa/use-package-20180715.1101/use-package-ensure.el')
| -rw-r--r-- | configs/shared/emacs/.emacs.d/elpa/use-package-20180715.1101/use-package-ensure.el | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/configs/shared/emacs/.emacs.d/elpa/use-package-20180715.1101/use-package-ensure.el b/configs/shared/emacs/.emacs.d/elpa/use-package-20180715.1101/use-package-ensure.el new file mode 100644 index 000000000000..50005a9e9901 --- /dev/null +++ b/configs/shared/emacs/.emacs.d/elpa/use-package-20180715.1101/use-package-ensure.el @@ -0,0 +1,214 @@ +;;; use-package-ensure.el --- Support for the :ensure and :pin keywords -*- 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 :ensure and :pin keywords, which is made available +;; by default by requiring `use-package'. + +;;; Code: + +(require 'cl-lib) +(require 'use-package-core) + +(defgroup use-package-ensure nil + "Support for :ensure and :pin keywords in use-package declarations." + :group 'use-package) + +(eval-when-compile + (declare-function package-installed-p "package") + (declare-function package-read-all-archive-contents "package" ())) + +(defcustom use-package-always-ensure nil + "Treat every package as though it had specified using `:ensure SEXP'. +See also `use-package-defaults', which uses this value." + :type 'sexp + :group 'use-package-ensure) + +(defcustom use-package-always-pin nil + "Treat every package as though it had specified using `:pin SYM'. +See also `use-package-defaults', which uses this value." + :type 'symbol + :group 'use-package-ensure) + +(defcustom use-package-ensure-function 'use-package-ensure-elpa + "Function that ensures a package is installed. +This function is called with three arguments: the name of the +package declared in the `use-package' form; the arguments passed +to all `:ensure' keywords (always a list, even if only one); and +the current `state' plist created by previous handlers. + +Note that this function is called whenever `:ensure' is provided, +even if it is nil. It is up to the function to decide on the +semantics of the various values for `:ensure'. + +This function should return non-nil if the package is installed. + +The default value uses package.el to install the package." + :type '(choice (const :tag "package.el" use-package-ensure-elpa) + (function :tag "Custom")) + :group 'use-package-ensure) + +;;;; :pin + +(defun use-package-normalize/:pin (_name keyword args) + (use-package-only-one (symbol-name keyword) args + #'(lambda (_label arg) + (cond + ((stringp arg) arg) + ((use-package-non-nil-symbolp arg) (symbol-name arg)) + (t + (use-package-error + ":pin wants an archive name (a string)")))))) + +(eval-when-compile + (defvar package-pinned-packages) + (defvar package-archives)) + +(defun use-package-archive-exists-p (archive) + "Check if a given ARCHIVE is enabled. + +ARCHIVE can be a string or a symbol or 'manual to indicate a +manually updated package." + (if (member archive '(manual "manual")) + 't + (let ((valid nil)) + (dolist (pa package-archives) + (when (member archive (list (car pa) (intern (car pa)))) + (setq valid 't))) + valid))) + +(defun use-package-pin-package (package archive) + "Pin PACKAGE to ARCHIVE." + (unless (boundp 'package-pinned-packages) + (setq package-pinned-packages ())) + (let ((archive-symbol (if (symbolp archive) archive (intern archive))) + (archive-name (if (stringp archive) archive (symbol-name archive)))) + (if (use-package-archive-exists-p archive-symbol) + (add-to-list 'package-pinned-packages (cons package archive-name)) + (error "Archive '%s' requested for package '%s' is not available." + archive-name package)) + (unless (bound-and-true-p package--initialized) + (package-initialize t)))) + +(defun use-package-handler/:pin (name _keyword archive-name rest state) + (let ((body (use-package-process-keywords name rest state)) + (pin-form (if archive-name + `(use-package-pin-package ',(use-package-as-symbol name) + ,archive-name)))) + ;; Pinning should occur just before ensuring + ;; See `use-package-handler/:ensure'. + (if (bound-and-true-p byte-compile-current-file) + (eval pin-form) ; Eval when byte-compiling, + (push pin-form body)) ; or else wait until runtime. + body)) + +;;;; :ensure + +(defvar package-archive-contents) + +;;;###autoload +(defun use-package-normalize/:ensure (_name keyword args) + (if (null args) + (list t) + (use-package-only-one (symbol-name keyword) args + #'(lambda (_label arg) + (cond + ((symbolp arg) + (list arg)) + ((and (listp arg) (= 3 (length arg)) + (symbolp (nth 0 arg)) + (eq :pin (nth 1 arg)) + (or (stringp (nth 2 arg)) + (symbolp (nth 2 arg)))) + (list (cons (nth 0 arg) (nth 2 arg)))) + (t + (use-package-error + (concat ":ensure wants an optional package name " + "(an unquoted symbol name), or (<symbol> :pin <string>)")))))))) + +(defun use-package-ensure-elpa (name args _state &optional _no-refresh) + (dolist (ensure args) + (let ((package + (or (and (eq ensure t) (use-package-as-symbol name)) + ensure))) + (when package + (require 'package) + (when (consp package) + (use-package-pin-package (car package) (cdr package)) + (setq package (car package))) + (unless (package-installed-p package) + (condition-case-unless-debug err + (progn + (when (assoc package (bound-and-true-p + package-pinned-packages)) + (package-read-all-archive-contents)) + (if (assoc package package-archive-contents) + (package-install package) + (package-refresh-contents) + (when (assoc package (bound-and-true-p + package-pinned-packages)) + (package-read-all-archive-contents)) + (package-install package)) + t) + (error + (display-warning 'use-package + (format "Failed to install %s: %s" + name (error-message-string err)) + :error)))))))) + +;;;###autoload +(defun use-package-handler/:ensure (name _keyword ensure rest state) + (let* ((body (use-package-process-keywords name rest state))) + ;; We want to avoid installing packages when the `use-package' macro is + ;; being macro-expanded by elisp completion (see `lisp--local-variables'), + ;; but still install packages when byte-compiling, to avoid requiring + ;; `package' at runtime. + (if (bound-and-true-p byte-compile-current-file) + ;; Eval when byte-compiling, + (funcall use-package-ensure-function name ensure state) + ;; or else wait until runtime. + (push `(,use-package-ensure-function ',name ',ensure ',state) + body)) + body)) + +(add-to-list 'use-package-defaults + '(:ensure (list use-package-always-ensure) + (lambda (name args) + (and use-package-always-ensure + (not (plist-member args :load-path))))) t) + +(add-to-list 'use-package-defaults + '(:pin use-package-always-pin use-package-always-pin) t) + +(add-to-list 'use-package-keywords :ensure) +(add-to-list 'use-package-keywords :pin) + +(provide 'use-package-ensure) + +;;; use-package-ensure.el ends here |