1 ;;; package.el --- Simple package system for Emacs -*- lexical-binding:t -*-
3 ;; Copyright (C) 2007-2015 Free Software Foundation, Inc.
5 ;; Author: Tom Tromey <tromey@redhat.com>
6 ;; Daniel Hackney <dan@haxney.org>
7 ;; Created: 10 Mar 2007
10 ;; Package-Requires: ((tabulated-list "1.0"))
12 ;; This file is part of GNU Emacs.
14 ;; GNU Emacs is free software: you can redistribute it and/or modify
15 ;; it under the terms of the GNU General Public License as published by
16 ;; the Free Software Foundation, either version 3 of the License, or
17 ;; (at your option) any later version.
19 ;; GNU Emacs is distributed in the hope that it will be useful,
20 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
21 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 ;; GNU General Public License for more details.
24 ;; You should have received a copy of the GNU General Public License
25 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
29 ;; The idea behind package.el is to be able to download packages and
30 ;; install them. Packages are versioned and have versioned
31 ;; dependencies. Furthermore, this supports built-in packages which
32 ;; may or may not be newer than user-specified packages. This makes
33 ;; it possible to upgrade Emacs and automatically disable packages
34 ;; which have moved from external to core. (Note though that we don't
35 ;; currently register any of these, so this feature does not actually
38 ;; A package is described by its name and version. The distribution
39 ;; format is either a tar file or a single .el file.
41 ;; A tar file should be named "NAME-VERSION.tar". The tar file must
42 ;; unpack into a directory named after the package and version:
43 ;; "NAME-VERSION". It must contain a file named "PACKAGE-pkg.el"
44 ;; which consists of a call to define-package. It may also contain a
45 ;; "dir" file and the info files it references.
47 ;; A .el file is named "NAME-VERSION.el" in the remote archive, but is
48 ;; installed as simply "NAME.el" in a directory named "NAME-VERSION".
50 ;; The downloader downloads all dependent packages. By default,
51 ;; packages come from the official GNU sources, but others may be
52 ;; added by customizing the `package-archives' alist. Packages get
53 ;; byte-compiled at install time.
55 ;; At activation time we will set up the load-path and the info path,
56 ;; and we will load the package's autoloads. If a package's
57 ;; dependencies are not available, we will not activate that package.
59 ;; Conceptually a package has multiple state transitions:
61 ;; * Download. Fetching the package from ELPA.
62 ;; * Install. Untar the package, or write the .el file, into
63 ;; ~/.emacs.d/elpa/ directory.
64 ;; * Autoload generation.
65 ;; * Byte compile. Currently this phase is done during install,
66 ;; but we may change this.
67 ;; * Activate. Evaluate the autoloads for the package to make it
68 ;; available to the user.
69 ;; * Load. Actually load the package and run some code from it.
71 ;; Other external functions you may want to use:
74 ;; Enters a mode similar to buffer-menu which lets you manage
75 ;; packages. You can choose packages for install (mark with "i",
76 ;; then "x" to execute) or deletion (not implemented yet), and you
77 ;; can see what packages are available. This will automatically
78 ;; fetch the latest list of packages from ELPA.
80 ;; M-x package-install-from-buffer
81 ;; Install a package consisting of a single .el file that appears
82 ;; in the current buffer. This only works for packages which
83 ;; define a Version header properly; package.el also supports the
84 ;; extension headers Package-Version (in case Version is an RCS id
85 ;; or similar), and Package-Requires (if the package requires other
88 ;; M-x package-install-file
89 ;; Install a package from the indicated file. The package can be
90 ;; either a tar file or a .el file. A tar file must contain an
91 ;; appropriately-named "-pkg.el" file; a .el file must be properly
92 ;; formatted as with package-install-from-buffer.
95 ;;; (sorted by sort-lines):
97 ;; Jim Blandy <jimb@red-bean.com>
98 ;; Karl Fogel <kfogel@red-bean.com>
99 ;; Kevin Ryde <user42@zip.com.au>
101 ;; Michael Olson <mwolson@member.fsf.org>
102 ;; Sebastian Tennant <sebyte@smolny.plus.com>
103 ;; Stefan Monnier <monnier@iro.umontreal.ca>
104 ;; Vinicius Jose Latorre <viniciusjl@ig.com.br>
105 ;; Phil Hagelberg <phil@hagelb.org>
109 ;; - putting info dirs at the start of the info path means
110 ;; users see a weird ordering of categories. OTOH we want to
111 ;; override later entries. maybe emacs needs to enforce
112 ;; the standard layout?
113 ;; - put bytecode in a separate directory tree
114 ;; - perhaps give users a way to recompile their bytecode
115 ;; or do it automatically when emacs changes
116 ;; - give users a way to know whether a package is installed ok
117 ;; - give users a way to view a package's documentation when it
118 ;; only appears in the .el
119 ;; - use/extend checkdoc so people can tell if their package will work
120 ;; - "installed" instead of a blank in the status column
121 ;; - tramp needs its files to be compiled in a certain order.
122 ;; how to handle this? fix tramp?
123 ;; - maybe we need separate .elc directories for various emacs versions
124 ;; and also emacs-vs-xemacs. That way conditional compilation can
125 ;; work. But would this break anything?
126 ;; - William Xu suggests being able to open a package file without
128 ;; - Interface with desktop.el so that restarting after an install
130 ;; - Use hierarchical layout. PKG/etc PKG/lisp PKG/info
131 ;; ... except maybe lisp?
132 ;; - It may be nice to have a macro that expands to the package's
133 ;; private data dir, aka ".../etc". Or, maybe data-directory
134 ;; needs to be a list (though this would be less nice)
135 ;; a few packages want this, eg sokoban
136 ;; - Allow multiple versions on the server, so that if a user doesn't
137 ;; meet the requirements for the most recent version they can still
138 ;; install an older one.
139 ;; - Allow optional package dependencies
140 ;; then if we require 'bbdb', bbdb-specific lisp in lisp/bbdb
141 ;; and just don't compile to add to load path ...?
142 ;; - Our treatment of the info path is somewhat bogus
146 (eval-when-compile (require 'subr-x))
147 (eval-when-compile (require 'cl-lib))
148 (eval-when-compile (require 'epg)) ;For setf accessors.
150 (require 'tabulated-list)
153 (defgroup package nil
154 "Manager for Emacs Lisp packages."
159 ;;; Customization options
161 (defcustom package-enable-at-startup t
162 "Whether to activate installed packages when Emacs starts.
163 If non-nil, packages are activated after reading the init file
164 and before `after-init-hook'. Activation is not done if
165 `user-init-file' is nil (e.g. Emacs was started with \"-q\").
167 Even if the value is nil, you can type \\[package-initialize] to
168 activate the package system at any time."
172 (defcustom package-load-list '(all)
173 "List of packages for `package-initialize' to load.
174 Each element in this list should be a list (NAME VERSION), or the
175 symbol `all'. The symbol `all' says to load the latest installed
176 versions of all packages not specified by other elements.
178 For an element (NAME VERSION), NAME is a package name (a symbol).
179 VERSION should be t, a string, or nil.
180 If VERSION is t, the most recent version is activated.
181 If VERSION is a string, only that version is ever loaded.
182 Any other version, even if newer, is silently ignored.
183 Hence, the package is \"held\" at that version.
184 If VERSION is nil, the package is not loaded (it is \"disabled\")."
185 :type '(repeat symbol)
189 (defcustom package-archives '(("gnu" . "http://elpa.gnu.org/packages/"))
190 "An alist of archives from which to fetch.
191 The default value points to the GNU Emacs package repository.
193 Each element has the form (ID . LOCATION).
194 ID is an archive name, as a string.
195 LOCATION specifies the base location for the archive.
196 If it starts with \"http:\", it is treated as a HTTP URL;
197 otherwise it should be an absolute directory name.
198 (Other types of URL are currently not supported.)
200 Only add locations that you trust, since fetching and installing
201 a package can run arbitrary code."
202 :type '(alist :key-type (string :tag "Archive name")
203 :value-type (string :tag "URL or directory name"))
207 (defcustom package-menu-hide-low-priority 'archive
208 "If non-nil, hide low priority packages from the packages menu.
209 A package is considered low priority if there's another version
210 of it available such that:
211 (a) the archive of the other package is higher priority than
212 this one, as per `package-archive-priorities';
214 (b) they both have the same archive priority but the other
215 package has a higher version number.
217 This variable has three possible values:
218 nil: no packages are hidden;
219 `archive': only criteria (a) is used;
220 t: both criteria are used.
222 This variable has no effect if `package-menu--hide-packages' is
223 nil, so it can be toggled with \\<package-menu-mode-map> \\[package-menu-toggle-hiding]."
224 :type '(choice (const :tag "Don't hide anything" nil)
225 (const :tag "Hide per package-archive-priorities"
227 (const :tag "Hide per archive and version number" t))
230 (defcustom package-archive-priorities nil
231 "An alist of priorities for packages.
233 Each element has the form (ARCHIVE-ID . PRIORITY).
235 When installing packages, the package with the highest version
236 number from the archive with the highest priority is
237 selected. When higher versions are available from archives with
238 lower priorities, the user has to select those manually.
240 Archives not in this list have the priority 0.
242 See also `package-menu-hide-low-priority'."
243 :type '(alist :key-type (string :tag "Archive name")
244 :value-type (integer :tag "Priority (default is 0)"))
248 (defcustom package-pinned-packages nil
249 "An alist of packages that are pinned to specific archives.
250 This can be useful if you have multiple package archives enabled,
251 and want to control which archive a given package gets installed from.
253 Each element of the alist has the form (PACKAGE . ARCHIVE), where:
254 PACKAGE is a symbol representing a package
255 ARCHIVE is a string representing an archive (it should be the car of
256 an element in `package-archives', e.g. \"gnu\").
258 Adding an entry to this variable means that only ARCHIVE will be
259 considered as a source for PACKAGE. If other archives provide PACKAGE,
260 they are ignored (for this package). If ARCHIVE does not contain PACKAGE,
261 the package will be unavailable."
262 :type '(alist :key-type (symbol :tag "Package")
263 :value-type (string :tag "Archive name"))
264 ;; I don't really see why this is risky...
265 ;; I suppose it could prevent you receiving updates for a package,
266 ;; via an entry (PACKAGE . NON-EXISTING). Which could be an issue
267 ;; if PACKAGE has a known vulnerability that is fixed in newer versions.
271 (defcustom package-user-dir (locate-user-emacs-file "elpa")
272 "Directory containing the user's Emacs Lisp packages.
273 The directory name should be absolute.
274 Apart from this directory, Emacs also looks for system-wide
275 packages in `package-directory-list'."
280 (defcustom package-directory-list
281 ;; Defaults are subdirs named "elpa" in the site-lisp dirs.
283 (dolist (f load-path)
285 (equal (file-name-nondirectory f) "site-lisp")
286 (push (expand-file-name "elpa" f) result)))
288 "List of additional directories containing Emacs Lisp packages.
289 Each directory name should be absolute.
291 These directories contain packages intended for system-wide; in
292 contrast, `package-user-dir' contains packages for personal use."
293 :type '(repeat directory)
297 (defvar epg-gpg-program)
299 (defcustom package-check-signature
300 (if (progn (require 'epg-config) (executable-find epg-gpg-program))
302 "Non-nil means to check package signatures when installing.
303 The value `allow-unsigned' means to still install a package even if
306 This also applies to the \"archive-contents\" file that lists the
307 contents of the archive."
308 :type '(choice (const nil :tag "Never")
309 (const allow-unsigned :tag "Allow unsigned")
310 (const t :tag "Check always"))
314 (defcustom package-unsigned-archives nil
315 "List of archives where we do not check for package signatures."
316 :type '(repeat (string :tag "Archive name"))
320 (defcustom package-selected-packages nil
321 "Store here packages installed explicitly by user.
322 This variable is fed automatically by Emacs when installing a new package.
323 This variable is used by `package-autoremove' to decide
324 which packages are no longer needed.
325 You can use it to (re)install packages on other machines
326 by running `package-install-selected-packages'.
328 To check if a package is contained in this list here, use
329 `package--user-selected-p', as it may populate the variable with
330 a sane initial value."
331 :type '(repeat symbol))
333 (defcustom package-menu-async t
334 "If non-nil, package-menu will use async operations when possible.
335 Currently, only the refreshing of archive contents supports
336 asynchronous operations. Package transactions are still done
342 ;;; `package-desc' object definition
343 ;; This is the struct used internally to represent packages.
344 ;; Functions that deal with packages should generally take this object
345 ;; as an argument. In some situations (e.g. commands that query the
346 ;; user) it makes sense to take the package name as a symbol instead,
347 ;; but keep in mind there could be multiple `package-desc's with the
349 (defvar package--default-summary "No description available.")
351 (cl-defstruct (package-desc
352 ;; Rename the default constructor from `make-package-desc'.
353 (:constructor package-desc-create)
354 ;; Has the same interface as the old `define-package',
355 ;; which is still used in the "foo-pkg.el" files. Extra
356 ;; options can be supported by adding additional keys.
358 package-desc-from-define
359 (name-string version-string &optional summary requirements
362 (name (intern name-string))
363 (version (version-to-list version-string))
364 (reqs (mapcar #'(lambda (elt)
366 (version-to-list (cadr elt))))
367 (if (eq 'quote (car requirements))
370 (kind (plist-get rest-plist :kind))
371 (archive (plist-get rest-plist :archive))
374 (unless (memq (car rest-plist) '(:kind :archive))
375 (let ((value (cadr rest-plist)))
377 (push (cons (car rest-plist)
378 (if (eq (car-safe value) 'quote)
382 (setq rest-plist (cddr rest-plist)))
384 "Structure containing information about an individual package.
387 `name' Name of the package, as a symbol.
389 `version' Version of the package, as a version list.
391 `summary' Short description of the package, typically taken from
392 the first line of the file.
394 `reqs' Requirements of the package. A list of (PACKAGE
395 VERSION-LIST) naming the dependent package and the minimum
398 `kind' The distribution format of the package. Currently, it is
399 either `single' or `tar'.
401 `archive' The name of the archive (as a string) whence this
404 `dir' The directory where the package is installed (if installed),
405 `builtin' if it is built-in, or nil otherwise.
407 `extras' Optional alist of additional keyword-value pairs.
409 `signed' Flag to indicate that the package is signed by provider."
412 (summary package--default-summary)
420 (defun package--from-builtin (bi-desc)
421 (package-desc-create :name (pop bi-desc)
422 :version (package--bi-desc-version bi-desc)
423 :summary (package--bi-desc-summary bi-desc)
427 (defun package-version-join (vlist)
428 "Return the version string corresponding to the list VLIST.
429 This is, approximately, the inverse of `version-to-list'.
430 \(Actually, it returns only one of the possible inverses, since
431 `version-to-list' is a many-to-one operation.)"
434 (let ((str-list (list "." (int-to-string (car vlist)))))
435 (dolist (num (cdr vlist))
438 (push (int-to-string num) str-list)
441 (error "Invalid version list `%s'" vlist))
443 ;; pre, or beta, or alpha
444 (cond ((equal "." (car str-list))
446 ((not (string-match "[0-9]+" (car str-list)))
447 (error "Invalid version list `%s'" vlist)))
448 (push (cond ((= num -1) "pre")
451 ((= num -4) "snapshot"))
453 (if (equal "." (car str-list))
455 (apply 'concat (nreverse str-list)))))
457 (defun package-desc-full-name (pkg-desc)
459 (package-desc-name pkg-desc)
460 (package-version-join (package-desc-version pkg-desc))))
462 (defun package-desc-suffix (pkg-desc)
463 (pcase (package-desc-kind pkg-desc)
467 (kind (error "Unknown package kind: %s" kind))))
469 (defun package-desc--keywords (pkg-desc)
470 (let ((keywords (cdr (assoc :keywords (package-desc-extras pkg-desc)))))
471 (if (eq (car-safe keywords) 'quote)
475 (defun package-desc-priority (p)
476 "Return the priority of the archive of package-desc object P."
477 (package-archive-priority (package-desc-archive p)))
479 ;; Package descriptor format used in finder-inf.el and package--builtins.
480 (cl-defstruct (package--bi-desc
481 (:constructor package-make-builtin (version summary))
488 ;;; Installed packages
489 ;; The following variables store information about packages present in
490 ;; the system. The most important of these is `package-alist'. The
491 ;; command `package-initialize' is also closely related to this
492 ;; section, but it is left for a later section because it also affects
494 (defvar package--builtins nil
495 "Alist of built-in packages.
496 The actual value is initialized by loading the library
497 `finder-inf'; this is not done until it is needed, e.g. by the
498 function `package-built-in-p'.
500 Each element has the form (PKG . PACKAGE-BI-DESC), where PKG is a package
501 name (a symbol) and DESC is a `package--bi-desc' structure.")
502 (put 'package--builtins 'risky-local-variable t)
504 (defvar package-alist nil
505 "Alist of all packages available for activation.
506 Each element has the form (PKG . DESCS), where PKG is a package
507 name (a symbol) and DESCS is a non-empty list of `package-desc' structure,
508 sorted by decreasing versions.
510 This variable is set automatically by `package-load-descriptor',
511 called via `package-initialize'. To change which packages are
512 loaded and/or activated, customize `package-load-list'.")
513 (put 'package-alist 'risky-local-variable t)
515 (defvar package-activated-list nil
516 ;; FIXME: This should implicitly include all builtin packages.
517 "List of the names of currently activated packages.")
518 (put 'package-activated-list 'risky-local-variable t)
520 ;;;; Populating `package-alist'.
521 ;; The following functions are called on each installed package by
522 ;; `package-load-all-descriptors', which ultimately populates the
523 ;; `package-alist' variable.
524 (defun package-process-define-package (exp)
525 (when (eq (car-safe exp) 'define-package)
526 (let* ((new-pkg-desc (apply #'package-desc-from-define (cdr exp)))
527 (name (package-desc-name new-pkg-desc))
528 (version (package-desc-version new-pkg-desc))
529 (old-pkgs (assq name package-alist)))
531 ;; If there's no old package, just add this to `package-alist'.
532 (push (list name new-pkg-desc) package-alist)
533 ;; If there is, insert the new package at the right place in the list.
535 (if (and (cdr old-pkgs)
536 (version-list-< version
537 (package-desc-version (cadr old-pkgs))))
538 (setq old-pkgs (cdr old-pkgs))
539 (push new-pkg-desc (cdr old-pkgs))
543 (defun package-load-descriptor (pkg-dir)
544 "Load the description file in directory PKG-DIR."
545 (let ((pkg-file (expand-file-name (package--description-file pkg-dir)
547 (signed-file (concat pkg-dir ".signed")))
548 (when (file-exists-p pkg-file)
550 (insert-file-contents pkg-file)
551 (goto-char (point-min))
552 (let ((pkg-desc (or (package-process-define-package
553 (read (current-buffer)))
554 (error "Can't find define-package in %s" pkg-file))))
555 (setf (package-desc-dir pkg-desc) pkg-dir)
556 (if (file-exists-p signed-file)
557 (setf (package-desc-signed pkg-desc) t))
560 (defun package-load-all-descriptors ()
561 "Load descriptors for installed Emacs Lisp packages.
562 This looks for package subdirectories in `package-user-dir' and
563 `package-directory-list'. The variable `package-load-list'
564 controls which package subdirectories may be loaded.
566 In each valid package subdirectory, this function loads the
567 description file containing a call to `define-package', which
568 updates `package-alist'."
569 (dolist (dir (cons package-user-dir package-directory-list))
570 (when (file-directory-p dir)
571 (dolist (subdir (directory-files dir))
572 (unless (equal subdir "..")
573 (let ((pkg-dir (expand-file-name subdir dir)))
574 (when (file-directory-p pkg-dir)
575 (package-load-descriptor pkg-dir))))))))
577 (defun define-package (_name-string _version-string
578 &optional _docstring _requirements
579 &rest _extra-properties)
580 "Define a new package.
581 NAME-STRING is the name of the package, as a string.
582 VERSION-STRING is the version of the package, as a string.
583 DOCSTRING is a short description of the package, a string.
584 REQUIREMENTS is a list of dependencies on other packages.
585 Each requirement is of the form (OTHER-PACKAGE OTHER-VERSION),
586 where OTHER-VERSION is a string.
588 EXTRA-PROPERTIES is currently unused."
589 ;; FIXME: Placeholder! Should we keep it?
590 (error "Don't call me!"))
593 ;;; Package activation
594 ;; Section for functions used by `package-activate', which see.
595 (defun package-disabled-p (pkg-name version)
596 "Return whether PKG-NAME at VERSION can be activated.
597 The decision is made according to `package-load-list'.
598 Return nil if the package can be activated.
599 Return t if the package is completely disabled.
600 Return the max version (as a string) if the package is held at a lower version."
601 (let ((force (assq pkg-name package-load-list)))
602 (cond ((null force) (not (memq 'all package-load-list)))
603 ((null (setq force (cadr force))) t) ; disabled
605 ((stringp force) ; held
606 (unless (version-list-= version (version-to-list force))
608 (t (error "Invalid element in `package-load-list'")))))
610 (defun package-built-in-p (package &optional min-version)
611 "Return true if PACKAGE is built-in to Emacs.
612 Optional arg MIN-VERSION, if non-nil, should be a version list
613 specifying the minimum acceptable version."
614 (if (package-desc-p package) ;; was built-in and then was converted
615 (eq 'builtin (package-desc-dir package))
616 (let ((bi (assq package package--builtin-versions)))
618 (bi (version-list-<= min-version (cdr bi)))
619 ((remove 0 min-version) nil)
621 (require 'finder-inf nil t) ; For `package--builtins'.
622 (assq package package--builtins))))))
624 (defun package--autoloads-file-name (pkg-desc)
625 "Return the absolute name of the autoloads file, sans extension.
626 PKG-DESC is a `package-desc' object."
628 (format "%s-autoloads" (package-desc-name pkg-desc))
629 (package-desc-dir pkg-desc)))
631 (defun package--activate-autoloads-and-load-path (pkg-desc)
632 "Load the autoloads file and add package dir to `load-path'.
633 PKG-DESC is a `package-desc' object."
634 (let* ((old-lp load-path)
635 (pkg-dir (package-desc-dir pkg-desc))
636 (pkg-dir-dir (file-name-as-directory pkg-dir)))
637 (with-demoted-errors "Error loading autoloads: %s"
638 (load (package--autoloads-file-name pkg-desc) nil t))
639 (when (and (eq old-lp load-path)
640 (not (or (member pkg-dir load-path)
641 (member pkg-dir-dir load-path))))
642 ;; Old packages don't add themselves to the `load-path', so we have to
644 (push pkg-dir load-path))))
646 (defvar Info-directory-list)
647 (declare-function info-initialize "info" ())
649 (defun package--load-files-for-activation (pkg-desc reload)
650 "Load files for activating a package given by PKG-DESC.
651 Load the autoloads file, and ensure `load-path' is setup. If
652 RELOAD is non-nil, also load all files in the package that
653 correspond to previously loaded files."
654 (let* ((loaded-files-list (when reload
655 (package--list-loaded-files (package-desc-dir pkg-desc)))))
656 ;; Add to load path, add autoloads, and activate the package.
657 (package--activate-autoloads-and-load-path pkg-desc)
658 ;; Call `load' on all files in `package-desc-dir' already present in
659 ;; `load-history'. This is done so that macros in these files are updated
660 ;; to their new definitions. If another package is being installed which
661 ;; depends on this new definition, not doing this update would cause
662 ;; compilation errors and break the installation.
663 (with-demoted-errors "Error in package--load-files-for-activation: %s"
664 (mapc (lambda (feature) (load feature nil t))
665 ;; Skip autoloads file since we already evaluated it above.
666 (remove (file-truename (package--autoloads-file-name pkg-desc))
667 loaded-files-list)))))
669 (defun package-activate-1 (pkg-desc &optional reload deps)
670 "Activate package given by PKG-DESC, even if it was already active.
671 If DEPS is non-nil, also activate its dependencies (unless they
672 are already activated).
673 If RELOAD is non-nil, also `load' any files inside the package which
674 correspond to previously loaded files (those returned by
675 `package--list-loaded-files')."
676 (let* ((name (package-desc-name pkg-desc))
677 (pkg-dir (package-desc-dir pkg-desc)))
679 (error "Internal error: unable to find directory for `%s'"
680 (package-desc-full-name pkg-desc)))
681 ;; Activate its dependencies recursively.
682 ;; FIXME: This doesn't check whether the activated version is the
685 (dolist (req (package-desc-reqs pkg-desc))
686 (unless (package-activate (car req))
687 (error "Unable to activate package `%s'.\nRequired package `%s-%s' is unavailable"
688 name (car req) (package-version-join (cadr req))))))
689 (package--load-files-for-activation pkg-desc reload)
691 (when (file-exists-p (expand-file-name "dir" pkg-dir))
692 ;; FIXME: not the friendliest, but simple.
695 (push pkg-dir Info-directory-list))
696 (push name package-activated-list)
700 (declare-function find-library-name "find-func" (library))
702 (defun package--list-loaded-files (dir)
703 "Recursively list all files in DIR which correspond to loaded features.
704 Returns the `file-name-sans-extension' of each file, relative to
705 DIR, sorted by most recently loaded last."
706 (let* ((history (delq nil
709 (and f (file-name-sans-extension f))))
711 (dir (file-truename dir))
712 ;; List all files that have already been loaded.
717 (lambda (x) (let* ((file (file-relative-name x dir))
718 ;; Previously loaded file, if any.
721 (file-name-sans-extension
722 (file-truename (find-library-name file)))))
723 (pos (when previous (member previous history))))
724 ;; Return (RELATIVE-FILENAME . HISTORY-POSITION)
726 (cons (file-name-sans-extension file) (length pos)))))
727 (directory-files-recursively dir "\\`[^\\.].*\\.el\\'")))))
728 ;; Turn the list of (FILENAME . POS) back into a list of features. Files in
729 ;; subdirectories are returned relative to DIR (so not actually features).
730 (let ((default-directory (file-name-as-directory dir)))
731 (mapcar (lambda (x) (file-truename (car x)))
732 (sort list-of-conflicts
733 ;; Sort the files by ascending HISTORY-POSITION.
734 (lambda (x y) (< (cdr x) (cdr y))))))))
736 ;;;; `package-activate'
737 ;; This function activates a newer version of a package if an older
738 ;; one was already activated. It also loads a features of this
739 ;; package which were already loaded.
740 (defun package-activate (package &optional force)
741 "Activate the package named PACKAGE.
742 If FORCE is true, (re-)activate it if it's already activated.
743 Newer versions are always activated, regardless of FORCE."
744 (let ((pkg-descs (cdr (assq package package-alist))))
745 ;; Check if PACKAGE is available in `package-alist'.
748 (let ((available-version (package-desc-version (car pkg-descs))))
749 (or (package-disabled-p package available-version)
750 ;; Prefer a builtin package.
751 (package-built-in-p package available-version))))
752 (setq pkg-descs (cdr pkg-descs)))
754 ;; If no such package is found, maybe it's built-in.
756 (package-built-in-p package))
757 ;; If the package is already activated, just return t.
758 ((and (memq package package-activated-list) (not force))
760 ;; Otherwise, proceed with activation.
761 (t (package-activate-1 (car pkg-descs) nil 'deps)))))
764 ;;; Installation -- Local operations
765 ;; This section contains a variety of features regarding installing a
766 ;; package to/from disk. This includes autoload generation,
767 ;; unpacking, compiling, as well as defining a package from the
771 (defvar tar-parse-info)
772 (declare-function tar-untar-buffer "tar-mode" ())
773 (declare-function tar-header-name "tar-mode" (tar-header) t)
774 (declare-function tar-header-link-type "tar-mode" (tar-header) t)
776 (defun package-untar-buffer (dir)
777 "Untar the current buffer.
778 This uses `tar-untar-buffer' from Tar mode. All files should
779 untar into a directory named DIR; otherwise, signal an error."
782 ;; Make sure everything extracts into DIR.
783 (let ((regexp (concat "\\`" (regexp-quote (expand-file-name dir)) "/"))
784 (case-fold-search (memq system-type '(windows-nt ms-dos cygwin))))
785 (dolist (tar-data tar-parse-info)
786 (let ((name (expand-file-name (tar-header-name tar-data))))
787 (or (string-match regexp name)
788 ;; Tarballs created by some utilities don't list
789 ;; directories with a trailing slash (Bug#13136).
790 (and (string-equal dir name)
791 (eq (tar-header-link-type tar-data) 5))
792 (error "Package does not untar cleanly into directory %s/" dir)))))
795 (defun package--alist-to-plist-args (alist)
796 (mapcar 'macroexp-quote
798 (mapcar (lambda (pair) (list (car pair) (cdr pair))) alist))))
799 (defun package-unpack (pkg-desc)
800 "Install the contents of the current buffer as a package."
801 (let* ((name (package-desc-name pkg-desc))
802 (dirname (package-desc-full-name pkg-desc))
803 (pkg-dir (expand-file-name dirname package-user-dir)))
804 (pcase (package-desc-kind pkg-desc)
806 (make-directory pkg-dir t)
809 default-directory 'full "\\`[^.].*\\.el\\'" 'nosort)))
810 (dolist (source-file file-list)
811 (let ((target-el-file
812 (expand-file-name (file-name-nondirectory source-file) pkg-dir)))
813 (copy-file source-file target-el-file t)))
814 ;; Now that the files have been installed, this package is
815 ;; indistinguishable from a `tar' or a `single'. Let's make
816 ;; things simple by ensuring we're one of them.
817 (setf (package-desc-kind pkg-desc)
818 (if (> (length file-list) 1) 'tar 'single))))
820 (make-directory package-user-dir t)
821 ;; FIXME: should we delete PKG-DIR if it exists?
822 (let* ((default-directory (file-name-as-directory package-user-dir)))
823 (package-untar-buffer dirname)))
825 (let ((el-file (expand-file-name (format "%s.el" name) pkg-dir)))
826 (make-directory pkg-dir t)
827 (package--write-file-no-coding el-file)))
828 (kind (error "Unknown package kind: %S" kind)))
829 (package--make-autoloads-and-stuff pkg-desc pkg-dir)
830 ;; Update package-alist.
831 (let ((new-desc (package-load-descriptor pkg-dir)))
832 ;; FIXME: Check that `new-desc' matches `desc'!
833 ;; Activation has to be done before compilation, so that if we're
834 ;; upgrading and macros have changed we load the new definitions
836 (package-activate-1 new-desc :reload :deps)
837 ;; FIXME: Compilation should be done as a separate, optional, step.
838 ;; E.g. for multi-package installs, we should first install all packages
839 ;; and then compile them.
840 (package--compile new-desc)
841 ;; After compilation, load again any files loaded by
842 ;; `activate-1', so that we use the byte-compiled definitions.
843 (package--load-files-for-activation new-desc :reload))
846 (defun package-generate-description-file (pkg-desc pkg-file)
847 "Create the foo-pkg.el file for single-file packages."
848 (let* ((name (package-desc-name pkg-desc)))
849 (let ((print-level nil)
854 ";;; -*- no-byte-compile: t -*-\n"
857 (list 'define-package
859 (package-version-join (package-desc-version pkg-desc))
860 (package-desc-summary pkg-desc)
861 (let ((requires (package-desc-reqs pkg-desc)))
863 ;; Turn version lists into string form.
867 (package-version-join (cadr elt))))
869 (package--alist-to-plist-args
870 (package-desc-extras pkg-desc))))
872 nil pkg-file nil 'silent))))
875 ;; From Emacs 22, but changed so it adds to load-path.
876 (defun package-autoload-ensure-default-file (file)
877 "Make sure that the autoload file FILE exists and if not create it."
878 (unless (file-exists-p file)
880 (concat ";;; " (file-name-nondirectory file)
881 " --- automatically extracted autoloads\n"
884 ;; `load-path' should contain only directory names
885 "(add-to-list 'load-path (directory-file-name (or (file-name-directory #$) (car load-path))))\n"
886 "
\f\n;; Local Variables:\n"
887 ";; version-control: never\n"
888 ";; no-byte-compile: t\n"
889 ";; no-update-autoloads: t\n"
891 ";;; " (file-name-nondirectory file)
893 nil file nil 'silent))
896 (defvar generated-autoload-file)
897 (defvar version-control)
899 (defun package-generate-autoloads (name pkg-dir)
900 (let* ((auto-name (format "%s-autoloads.el" name))
901 ;;(ignore-name (concat name "-pkg.el"))
902 (generated-autoload-file (expand-file-name auto-name pkg-dir))
903 ;; Silence `autoload-generate-file-autoloads'.
904 (noninteractive inhibit-message)
906 (version-control 'never))
907 (package-autoload-ensure-default-file generated-autoload-file)
908 (update-directory-autoloads pkg-dir)
909 (let ((buf (find-buffer-visiting generated-autoload-file)))
910 (when buf (kill-buffer buf)))
913 (defun package--make-autoloads-and-stuff (pkg-desc pkg-dir)
914 "Generate autoloads, description file, etc.. for PKG-DESC installed at PKG-DIR."
915 (package-generate-autoloads (package-desc-name pkg-desc) pkg-dir)
916 (let ((desc-file (expand-file-name (package--description-file pkg-dir)
918 (unless (file-exists-p desc-file)
919 (package-generate-description-file pkg-desc desc-file)))
920 ;; FIXME: Create foo.info and dir file from foo.texi?
924 (defvar warning-minimum-level)
925 (defun package--compile (pkg-desc)
926 "Byte-compile installed package PKG-DESC."
927 (let ((warning-minimum-level :error)
928 (save-silently inhibit-message)
929 (load-path load-path))
930 (package--activate-autoloads-and-load-path pkg-desc)
931 (byte-recompile-directory (package-desc-dir pkg-desc) 0 t)))
933 ;;;; Inferring package from current buffer
934 (defun package-read-from-string (str)
935 "Read a Lisp expression from STR.
936 Signal an error if the entire string was not used."
937 (let* ((read-data (read-from-string str))
940 ;; The call to `ignore' suppresses a compiler warning.
941 (progn (ignore (read-from-string
942 (substring str (cdr read-data))))
946 (error "Can't read whole string")
949 (defun package--prepare-dependencies (deps)
950 "Turn DEPS into an acceptable list of dependencies.
952 Any parts missing a version string get a default version string
953 of \"0\" (meaning any version) and an appropriate level of lists
954 is wrapped around any parts requiring it."
957 (error "Invalid requirement specifier: %S" deps))
958 (t (mapcar (lambda (dep)
960 ((symbolp dep) `(,dep "0"))
962 (error "Invalid requirement specifier: %S" dep))
963 ((and (listp dep) (null (cdr dep)))
964 (list (car dep) "0"))
968 (declare-function lm-header "lisp-mnt" (header))
969 (declare-function lm-homepage "lisp-mnt" (&optional file))
970 (declare-function lm-maintainer "lisp-mnt" (&optional file))
971 (declare-function lm-authors "lisp-mnt" (&optional file))
973 (defun package-buffer-info ()
974 "Return a `package-desc' describing the package in the current buffer.
976 If the buffer does not contain a conforming package, signal an
977 error. If there is a package, narrow the buffer to the file's
979 (goto-char (point-min))
980 (unless (re-search-forward "^;;; \\([^ ]*\\)\\.el ---[ \t]*\\(.*?\\)[ \t]*\\(-\\*-.*-\\*-[ \t]*\\)?$" nil t)
981 (error "Package lacks a file header"))
982 (let ((file-name (match-string-no-properties 1))
983 (desc (match-string-no-properties 2))
984 (start (line-beginning-position)))
985 (unless (search-forward (concat ";;; " file-name ".el ends here"))
986 (error "Package lacks a terminating comment"))
987 ;; Try to include a trailing newline.
989 (narrow-to-region start (point))
991 ;; Use some headers we've invented to drive the process.
992 (let* ((requires-str (lm-header "package-requires"))
993 ;; Prefer Package-Version; if defined, the package author
994 ;; probably wants us to use it. Otherwise try Version.
996 (or (package-strip-rcs-id (lm-header "package-version"))
997 (package-strip-rcs-id (lm-header "version"))))
998 (homepage (lm-homepage)))
1001 "Package lacks a \"Version\" or \"Package-Version\" header"))
1002 (package-desc-from-define
1003 file-name pkg-version desc
1005 (package--prepare-dependencies
1006 (package-read-from-string requires-str)))
1009 :maintainer (lm-maintainer)
1010 :authors (lm-authors)))))
1012 (defun package--read-pkg-desc (kind)
1013 "Read a `define-package' form in current buffer.
1014 Return the pkg-desc, with desc-kind set to KIND."
1015 (goto-char (point-min))
1017 (let* ((pkg-def-parsed (read (current-buffer)))
1019 (when (eq (car pkg-def-parsed) 'define-package)
1020 (apply #'package-desc-from-define
1021 (append (cdr pkg-def-parsed))))))
1023 (setf (package-desc-kind pkg-desc) kind)
1026 (declare-function tar-get-file-descriptor "tar-mode" (file))
1027 (declare-function tar--extract "tar-mode" (descriptor))
1029 (defun package-tar-file-info ()
1030 "Find package information for a tar file.
1031 The return result is a `package-desc'."
1032 (cl-assert (derived-mode-p 'tar-mode))
1033 (let* ((dir-name (file-name-directory
1034 (tar-header-name (car tar-parse-info))))
1035 (desc-file (package--description-file dir-name))
1036 (tar-desc (tar-get-file-descriptor (concat dir-name desc-file))))
1038 (error "No package descriptor file found"))
1039 (with-current-buffer (tar--extract tar-desc)
1041 (or (package--read-pkg-desc 'tar)
1042 (error "Can't find define-package in %s"
1043 (tar-header-name tar-desc)))
1044 (kill-buffer (current-buffer))))))
1046 (defun package-dir-info ()
1047 "Find package information for a directory.
1048 The return result is a `package-desc'."
1049 (cl-assert (derived-mode-p 'dired-mode))
1050 (let* ((desc-file (package--description-file default-directory)))
1051 (if (file-readable-p desc-file)
1053 (insert-file-contents desc-file)
1054 (package--read-pkg-desc 'dir))
1055 (let ((files (directory-files default-directory t "\\.el\\'" t))
1059 (insert-file-contents (pop files))
1060 ;; When we find the file with the data,
1061 (when (setq info (ignore-errors (package-buffer-info)))
1064 ;; set the 'dir kind,
1065 (setf (package-desc-kind info) 'dir))))
1066 ;; and return the info.
1070 ;;; Communicating with Archives
1071 ;; Set of low-level functions for communicating with archives and
1072 ;; signature checking.
1073 (defun package--write-file-no-coding (file-name)
1074 (let ((buffer-file-coding-system 'no-conversion))
1075 (write-region (point-min) (point-max) file-name nil 'silent)))
1077 (declare-function url-http-file-exists-p "url-http" (url))
1079 (defun package--archive-file-exists-p (location file)
1080 (let ((http (string-match "\\`https?:" location)))
1084 (url-http-file-exists-p (concat location file)))
1085 (file-exists-p (expand-file-name file location)))))
1087 (declare-function epg-make-context "epg"
1088 (&optional protocol armor textmode include-certs
1091 compress-algorithm))
1092 (declare-function epg-verify-string "epg" (context signature
1093 &optional signed-text))
1094 (declare-function epg-context-result-for "epg" (context name))
1095 (declare-function epg-signature-status "epg" (signature) t)
1096 (declare-function epg-signature-to-string "epg" (signature))
1098 (defun package--display-verify-error (context sig-file)
1099 (unless (equal (epg-context-error-output context) "")
1100 (with-output-to-temp-buffer "*Error*"
1101 (with-current-buffer standard-output
1102 (if (epg-context-result-for context 'verify)
1103 (insert (format "Failed to verify signature %s:\n" sig-file)
1104 (mapconcat #'epg-signature-to-string
1105 (epg-context-result-for context 'verify)
1107 (insert (format "Error while verifying signature %s:\n" sig-file)))
1108 (insert "\nCommand output:\n" (epg-context-error-output context))))))
1110 (defmacro package--with-work-buffer (location file &rest body)
1111 "Run BODY in a buffer containing the contents of FILE at LOCATION.
1112 LOCATION is the base location of a package archive, and should be
1113 one of the URLs (or file names) specified in `package-archives'.
1114 FILE is the name of a file relative to that base location.
1116 This macro retrieves FILE from LOCATION into a temporary buffer,
1117 and evaluates BODY while that buffer is current. This work
1118 buffer is killed afterwards. Return the last value in BODY."
1119 (declare (indent 2) (debug t)
1120 (obsolete package--with-response-buffer "25.1"))
1122 (if (string-match-p "\\`https?:" ,location)
1123 (url-insert-file-contents (concat ,location ,file))
1124 (unless (file-name-absolute-p ,location)
1125 (error "Archive location %s is not an absolute file name"
1127 (insert-file-contents (expand-file-name ,file ,location)))
1130 (cl-defmacro package--with-response-buffer (url &rest body &key async file error-form noerror &allow-other-keys)
1131 "Access URL and run BODY in a buffer containing the response.
1132 Point is after the headers when BODY runs.
1133 FILE, if provided, is added to URL.
1134 URL can be a local file name, which must be absolute.
1135 ASYNC, if non-nil, runs the request asynchronously.
1136 ERROR-FORM is run only if an error occurs. If NOERROR is
1137 non-nil, don't propagate errors caused by the connection or by
1138 BODY (does not apply to errors signaled by ERROR-FORM).
1140 \(fn URL &key ASYNC FILE ERROR-FORM NOERROR &rest BODY)"
1141 (declare (indent defun) (debug t))
1142 (while (keywordp (car body))
1143 (setq body (cdr (cdr body))))
1144 (macroexp-let2* nil ((url-1 url))
1145 `(cl-macrolet ((wrap-errors (&rest bodyforms)
1146 (let ((err (make-symbol "err")))
1147 `(condition-case ,err
1148 ,(macroexp-progn bodyforms)
1149 ,(list 'error ',error-form
1150 (list 'unless ',noerror
1151 `(signal (car ,err) (cdr ,err))))))))
1152 (if (string-match-p "\\`https?:" ,url-1)
1153 (let* ((url (concat ,url-1 ,file))
1154 (callback (lambda (status)
1155 (let ((b (current-buffer)))
1156 (require 'url-handlers)
1157 (unwind-protect (wrap-errors
1158 (when-let ((er (plist-get status :error)))
1159 (error "Error retrieving: %s %S" url er))
1160 (goto-char (point-min))
1161 (unless (search-forward-regexp "^\r?\n\r?" nil 'noerror)
1162 (error "Error retrieving: %s %S" url "incomprehensible buffer"))
1164 (url-insert-buffer-contents b url)
1166 (goto-char (point-min))
1169 (wrap-errors (url-retrieve url callback nil 'silent))
1170 (with-current-buffer (wrap-errors (url-retrieve-synchronously url 'silent))
1171 (funcall callback nil))))
1172 (wrap-errors (with-temp-buffer
1173 (let ((url (expand-file-name ,file ,url-1)))
1174 (unless (file-name-absolute-p url)
1175 (error "Location %s is not a url nor an absolute file name" url))
1176 (insert-file-contents url))
1179 (defun package--check-signature-content (content string &optional sig-file)
1180 "Check signature CONTENT against STRING.
1181 SIG-FILE is the name of the signature file, used when signaling
1183 (let* ((context (epg-make-context 'OpenPGP))
1184 (homedir (expand-file-name "gnupg" package-user-dir)))
1185 (setf (epg-context-home-directory context) homedir)
1186 (condition-case error
1187 (epg-verify-string context content string)
1188 (error (package--display-verify-error context sig-file)
1189 (signal (car error) (cdr error))))
1190 (let (good-signatures had-fatal-error)
1191 ;; The .sig file may contain multiple signatures. Success if one
1192 ;; of the signatures is good.
1193 (dolist (sig (epg-context-result-for context 'verify))
1194 (if (eq (epg-signature-status sig) 'good)
1195 (push sig good-signatures)
1196 ;; If package-check-signature is allow-unsigned, don't
1197 ;; signal error when we can't verify signature because of
1198 ;; missing public key. Other errors are still treated as
1199 ;; fatal (bug#17625).
1200 (unless (and (eq package-check-signature 'allow-unsigned)
1201 (eq (epg-signature-status sig) 'no-pubkey))
1202 (setq had-fatal-error t))))
1203 (when (and (null good-signatures) had-fatal-error)
1204 (package--display-verify-error context sig-file)
1205 (error "Failed to verify signature %s" sig-file))
1208 (defun package--check-signature (location file &optional string async callback)
1209 "Check signature of the current buffer.
1210 Download the signature file from LOCATION by appending \".sig\"
1212 GnuPG keyring is located under \"gnupg\" in `package-user-dir'.
1213 STRING is the string to verify, it defaults to `buffer-string'.
1214 If ASYNC is non-nil, the download of the signature file is
1215 done asynchronously.
1217 If the signature is verified and CALLBACK was provided, CALLBACK
1218 is `funcall'ed with the list of good signatures as argument (the
1219 list can be empty). If the signatures file is not found,
1220 CALLBACK is called with no arguments."
1221 (let ((sig-file (concat file ".sig"))
1222 (string (or string (buffer-string))))
1223 (package--with-response-buffer location :file sig-file
1224 :async async :noerror t
1225 :error-form (when callback (funcall callback nil))
1226 (let ((sig (package--check-signature-content (buffer-substring (point) (point-max)) string sig-file)))
1227 (when callback (funcall callback sig))
1230 ;;; Packages on Archives
1231 ;; The following variables store information about packages available
1232 ;; from archives. The most important of these is
1233 ;; `package-archive-contents' which is initially populated by the
1234 ;; function `package-read-all-archive-contents' from a cache on disk.
1235 ;; The `package-initialize' command is also closely related to this
1236 ;; section, but it has its own section.
1237 (defconst package-archive-version 1
1238 "Version number of the package archive understood by this file.
1239 Lower version numbers than this will probably be understood as well.")
1241 ;; We don't prime the cache since it tends to get out of date.
1242 (defvar package-archive-contents nil
1243 "Cache of the contents of the Emacs Lisp Package Archive.
1244 This is an alist mapping package names (symbols) to
1245 non-empty lists of `package-desc' structures.")
1246 (put 'package-archive-contents 'risky-local-variable t)
1248 (defvar package--compatibility-table nil
1249 "Hash table connecting package names to their compatibility.
1250 Each key is a symbol, the name of a package.
1252 The value is either nil, representing an incompatible package, or
1253 a version list, representing the highest compatible version of
1254 that package which is available.
1256 A package is considered incompatible if it requires an Emacs
1257 version higher than the one being used. To check for package
1258 \(in)compatibility, don't read this table directly, use
1259 `package--incompatible-p' which also checks dependencies.")
1261 (defun package--build-compatibility-table ()
1262 "Build `package--compatibility-table' with `package--mapc'."
1263 ;; Initialize the list of built-ins.
1264 (require 'finder-inf nil t)
1265 ;; Build compat table.
1266 (setq package--compatibility-table (make-hash-table :test 'eq))
1267 (package--mapc #'package--add-to-compatibility-table))
1269 (defun package--add-to-compatibility-table (pkg)
1270 "If PKG is compatible (without dependencies), add to the compatibility table.
1271 PKG is a package-desc object.
1272 Only adds if its version is higher than what's already stored in
1274 (unless (package--incompatible-p pkg 'shallow)
1275 (let* ((name (package-desc-name pkg))
1276 (version (or (package-desc-version pkg) '(0)))
1277 (table-version (gethash name package--compatibility-table)))
1278 (when (or (not table-version)
1279 (version-list-< table-version version))
1280 (puthash name version package--compatibility-table)))))
1282 ;; Package descriptor objects used inside the "archive-contents" file.
1283 ;; Changing this defstruct implies changing the format of the
1284 ;; "archive-contents" files.
1285 (cl-defstruct (package--ac-desc
1286 (:constructor package-make-ac-desc (version reqs summary kind extras))
1289 version reqs summary kind extras)
1291 (defun package--append-to-alist (pkg-desc alist)
1292 "Append an entry for PKG-DESC to the start of ALIST and return it.
1293 This entry takes the form (`package-desc-name' PKG-DESC).
1295 If ALIST already has an entry with this name, destructively add
1296 PKG-DESC to the cdr of this entry instead, sorted by version
1298 (let* ((name (package-desc-name pkg-desc))
1299 (priority-version (package-desc-priority-version pkg-desc))
1300 (existing-packages (assq name alist)))
1301 (if (not existing-packages)
1302 (cons (list name pkg-desc)
1304 (while (if (and (cdr existing-packages)
1305 (version-list-< priority-version
1306 (package-desc-priority-version
1307 (cadr existing-packages))))
1308 (setq existing-packages (cdr existing-packages))
1309 (push pkg-desc (cdr existing-packages))
1313 (defun package--add-to-archive-contents (package archive)
1314 "Add the PACKAGE from the given ARCHIVE if necessary.
1315 PACKAGE should have the form (NAME . PACKAGE--AC-DESC).
1316 Also, add the originating archive to the `package-desc' structure."
1317 (let* ((name (car package))
1318 (version (package--ac-desc-version (cdr package)))
1320 (package-desc-create
1323 :reqs (package--ac-desc-reqs (cdr package))
1324 :summary (package--ac-desc-summary (cdr package))
1325 :kind (package--ac-desc-kind (cdr package))
1327 :extras (and (> (length (cdr package)) 4)
1328 ;; Older archive-contents files have only 4
1330 (package--ac-desc-extras (cdr package)))))
1331 (pinned-to-archive (assoc name package-pinned-packages)))
1332 ;; Skip entirely if pinned to another archive.
1333 (when (not (and pinned-to-archive
1334 (not (equal (cdr pinned-to-archive) archive))))
1335 (setq package-archive-contents
1336 (package--append-to-alist pkg-desc package-archive-contents)))))
1338 (defun package--read-archive-file (file)
1339 "Re-read archive file FILE, if it exists.
1340 Will return the data from the file, or nil if the file does not exist.
1341 Will throw an error if the archive version is too new."
1342 (let ((filename (expand-file-name file package-user-dir)))
1343 (when (file-exists-p filename)
1345 (let ((coding-system-for-read 'utf-8))
1346 (insert-file-contents filename))
1347 (let ((contents (read (current-buffer))))
1348 (if (> (car contents) package-archive-version)
1349 (error "Package archive version %d is higher than %d"
1350 (car contents) package-archive-version))
1353 (defun package-read-archive-contents (archive)
1354 "Re-read archive contents for ARCHIVE.
1355 If successful, set the variable `package-archive-contents'.
1356 If the archive version is too new, signal an error."
1357 ;; Version 1 of 'archive-contents' is identical to our internal
1359 (let* ((contents-file (format "archives/%s/archive-contents" archive))
1360 (contents (package--read-archive-file contents-file)))
1362 (dolist (package contents)
1363 (package--add-to-archive-contents package archive)))))
1365 (defvar package--old-archive-priorities nil
1366 "Store currently used `package-archive-priorities'.
1367 This is the value of `package-archive-priorities' last time
1368 `package-read-all-archive-contents' was called. It can be used
1369 by arbitrary functions to decide whether it is necessary to call
1372 (defun package-read-all-archive-contents ()
1373 "Re-read `archive-contents', if it exists.
1374 If successful, set `package-archive-contents'."
1375 (setq package-archive-contents nil)
1376 (setq package--old-archive-priorities package-archive-priorities)
1377 (dolist (archive package-archives)
1378 (package-read-archive-contents (car archive))))
1380 ;;;; Package Initialize
1381 ;; A bit of a milestone. This brings together some of the above
1382 ;; sections and populates all relevant lists of packages from contents
1383 ;; available on disk.
1384 (defvar package--initialized nil)
1386 (defvar package--init-file-ensured nil
1387 "Whether we know the init file has package-initialize.")
1390 (defun package-initialize (&optional no-activate)
1391 "Load Emacs Lisp packages, and activate them.
1392 The variable `package-load-list' controls which packages to load.
1393 If optional arg NO-ACTIVATE is non-nil, don't activate packages.
1394 If `user-init-file' does not mention `(package-initialize)', add
1396 If called as part of loading `user-init-file', set
1397 `package-enable-at-startup' to nil, to prevent accidentally
1398 loading packages twice."
1400 (setq package-alist nil)
1401 (if (equal user-init-file load-file-name)
1402 ;; If `package-initialize' is being called as part of loading
1403 ;; the init file, it's obvious we don't need to ensure-init.
1404 (setq package--init-file-ensured t
1405 ;; And likely we don't need to run it again after init.
1406 package-enable-at-startup nil)
1407 (package--ensure-init-file))
1408 (package-load-all-descriptors)
1409 (package-read-all-archive-contents)
1411 (dolist (elt package-alist)
1412 (package-activate (car elt))))
1413 (setq package--initialized t)
1414 ;; This uses `package--mapc' so it must be called after
1415 ;; `package--initialized' is t.
1416 (package--build-compatibility-table))
1419 ;;;; Populating `package-archive-contents' from archives
1420 ;; This subsection populates the variables listed above from the
1421 ;; actual archives, instead of from a local cache.
1422 (defvar package--downloads-in-progress nil
1423 "List of in-progress asynchronous downloads.")
1425 (declare-function epg-check-configuration "epg-config"
1426 (config &optional minimum-version))
1427 (declare-function epg-configuration "epg-config" ())
1428 (declare-function epg-import-keys-from-file "epg" (context keys))
1431 (defun package-import-keyring (&optional file)
1432 "Import keys from FILE."
1433 (interactive "fFile: ")
1434 (setq file (expand-file-name file))
1435 (let ((context (epg-make-context 'OpenPGP))
1436 (homedir (expand-file-name "gnupg" package-user-dir)))
1437 (with-file-modes 448
1438 (make-directory homedir t))
1439 (setf (epg-context-home-directory context) homedir)
1440 (message "Importing %s..." (file-name-nondirectory file))
1441 (epg-import-keys-from-file context file)
1442 (message "Importing %s...done" (file-name-nondirectory file))))
1444 (defvar package--post-download-archives-hook nil
1445 "Hook run after the archive contents are downloaded.
1446 Don't run this hook directly. It is meant to be run as part of
1447 `package--update-downloads-in-progress'.")
1448 (put 'package--post-download-archives-hook 'risky-local-variable t)
1450 (defun package--update-downloads-in-progress (entry)
1451 "Remove ENTRY from `package--downloads-in-progress'.
1452 Once it's empty, run `package--post-download-archives-hook'."
1453 ;; Keep track of the downloading progress.
1454 (setq package--downloads-in-progress
1455 (remove entry package--downloads-in-progress))
1456 ;; If this was the last download, run the hook.
1457 (unless package--downloads-in-progress
1458 (package-read-all-archive-contents)
1459 (package--build-compatibility-table)
1460 ;; We message before running the hook, so the hook can give
1461 ;; messages as well.
1462 (message "Package refresh done")
1463 (run-hooks 'package--post-download-archives-hook)))
1465 (defun package--download-one-archive (archive file &optional async)
1466 "Retrieve an archive file FILE from ARCHIVE, and cache it.
1467 ARCHIVE should be a cons cell of the form (NAME . LOCATION),
1468 similar to an entry in `package-alist'. Save the cached copy to
1469 \"archives/NAME/FILE\" in `package-user-dir'."
1470 (package--with-response-buffer (cdr archive) :file file
1472 :error-form (package--update-downloads-in-progress archive)
1473 (let* ((location (cdr archive))
1474 (name (car archive))
1475 (content (buffer-string))
1476 (dir (expand-file-name (format "archives/%s" name) package-user-dir))
1477 (local-file (expand-file-name file dir)))
1478 (when (listp (read-from-string content))
1479 (make-directory dir t)
1480 (if (or (not package-check-signature)
1481 (member archive package-unsigned-archives))
1482 ;; If we don't care about the signature, save the file and
1484 (progn (write-region content nil local-file nil 'silent)
1485 (package--update-downloads-in-progress archive))
1486 ;; If we care, check it (perhaps async) and *then* write the file.
1487 (package--check-signature
1488 location file content async
1489 ;; This function will be called after signature checking.
1490 (lambda (&optional good-sigs)
1491 (unless (or good-sigs (eq package-check-signature 'allow-unsigned))
1492 ;; Even if the sig fails, this download is done, so
1493 ;; remove it from the in-progress list.
1494 (package--update-downloads-in-progress archive)
1495 (error "Unsigned archive `%s'" name))
1496 ;; Either everything worked or we don't mind not signing.
1497 ;; Write out the archives file.
1498 (write-region content nil local-file nil 'silent)
1499 ;; Write out good signatures into archive-contents.signed file.
1501 (write-region (mapconcat #'epg-signature-to-string good-sigs "\n")
1502 nil (concat local-file ".signed") nil 'silent))
1503 (package--update-downloads-in-progress archive))))))))
1505 (defun package--download-and-read-archives (&optional async)
1506 "Download descriptions of all `package-archives' and read them.
1507 This populates `package-archive-contents'. If ASYNC is non-nil,
1508 perform the downloads asynchronously."
1509 ;; The downloaded archive contents will be read as part of
1510 ;; `package--update-downloads-in-progress'.
1511 (dolist (archive package-archives)
1512 (cl-pushnew archive package--downloads-in-progress
1514 (dolist (archive package-archives)
1515 (condition-case-unless-debug nil
1516 (package--download-one-archive archive "archive-contents" async)
1517 (error (message "Failed to download `%s' archive."
1521 (defun package-refresh-contents (&optional async)
1522 "Download descriptions of all configured ELPA packages.
1523 For each archive configured in the variable `package-archives',
1524 inform Emacs about the latest versions of all packages it offers,
1525 and make them available for download.
1526 Optional argument ASYNC specifies whether to perform the
1527 downloads in the background."
1529 (unless (file-exists-p package-user-dir)
1530 (make-directory package-user-dir t))
1531 (let ((default-keyring (expand-file-name "package-keyring.gpg"
1533 (inhibit-message async))
1534 (when (and package-check-signature (file-exists-p default-keyring))
1535 (condition-case-unless-debug error
1537 (epg-check-configuration (epg-configuration))
1538 (package-import-keyring default-keyring))
1539 (error (message "Cannot import default keyring: %S" (cdr error))))))
1540 (package--download-and-read-archives async))
1543 ;;; Dependency Management
1544 ;; Calculating the full transaction necessary for an installation,
1545 ;; keeping track of which packages were installed strictly as
1546 ;; dependencies, and determining which packages cannot be removed
1547 ;; because they are dependencies.
1548 (defun package-compute-transaction (packages requirements &optional seen)
1549 "Return a list of packages to be installed, including PACKAGES.
1550 PACKAGES should be a list of `package-desc'.
1552 REQUIREMENTS should be a list of additional requirements; each
1553 element in this list should have the form (PACKAGE VERSION-LIST),
1554 where PACKAGE is a package name and VERSION-LIST is the required
1555 version of that package.
1557 This function recursively computes the requirements of the
1558 packages in REQUIREMENTS, and returns a list of all the packages
1559 that must be installed. Packages that are already installed are
1560 not included in this list.
1562 SEEN is used internally to detect infinite recursion."
1563 ;; FIXME: We really should use backtracking to explore the whole
1564 ;; search space (e.g. if foo require bar-1.3, and bar-1.4 requires toto-1.1
1565 ;; whereas bar-1.3 requires toto-1.0 and the user has put a hold on toto-1.0:
1566 ;; the current code might fail to see that it could install foo by using the
1568 (dolist (elt requirements)
1569 (let* ((next-pkg (car elt))
1570 (next-version (cadr elt))
1572 (dolist (pkg packages)
1573 (if (eq next-pkg (package-desc-name pkg))
1574 (setq already pkg)))
1576 (if (version-list-<= next-version (package-desc-version already))
1577 ;; `next-pkg' is already in `packages', but its position there
1578 ;; means it might be installed too late: remove it from there, so
1579 ;; we re-add it (along with its dependencies) at an earlier place
1580 ;; below (bug#16994).
1581 (if (memq already seen) ;Avoid inf-loop on dependency cycles.
1582 (message "Dependency cycle going through %S"
1583 (package-desc-full-name already))
1584 (setq packages (delq already packages))
1586 (error "Need package `%s-%s', but only %s is being installed"
1587 next-pkg (package-version-join next-version)
1588 (package-version-join (package-desc-version already)))))
1591 ((package-installed-p next-pkg next-version) nil)
1594 ;; A package is required, but not installed. It might also be
1595 ;; blocked via `package-load-list'.
1596 (let ((pkg-descs (cdr (assq next-pkg package-archive-contents)))
1598 (found-something nil)
1600 (while (and pkg-descs (not found))
1601 (let* ((pkg-desc (pop pkg-descs))
1602 (version (package-desc-version pkg-desc))
1603 (disabled (package-disabled-p next-pkg version)))
1605 ((version-list-< version next-version)
1606 ;; pkg-descs is sorted by priority, not version, so
1607 ;; don't error just yet.
1608 (unless found-something
1609 (setq found-something (package-version-join version))))
1613 (if (stringp disabled)
1615 "Package `%s' held at version %s, but version %s required"
1617 (package-version-join next-version))
1618 (format-message "Required package `%s' is disabled"
1620 (t (setq found pkg-desc)))))
1623 (problem (error "%s" problem))
1625 (error "Need package `%s-%s', but only %s is available"
1626 next-pkg (package-version-join next-version)
1628 (t (error "Package `%s-%s' is unavailable"
1629 next-pkg (package-version-join next-version)))))
1631 (package-compute-transaction (cons found packages)
1632 (package-desc-reqs found)
1633 (cons found seen))))))))
1636 (defun package--find-non-dependencies ()
1637 "Return a list of installed packages which are not dependencies.
1638 Finds all packages in `package-alist' which are not dependencies
1639 of any other packages.
1640 Used to populate `package-selected-packages'."
1644 (mapcar (lambda (p) (mapcar #'car (package-desc-reqs (cadr p))))
1646 (cl-loop for p in package-alist
1648 unless (memq name dep-list)
1651 (defun package--save-selected-packages (&optional value)
1652 "Set and save `package-selected-packages' to VALUE."
1654 (setq package-selected-packages value))
1656 (let ((save-silently inhibit-message))
1657 (customize-save-variable 'package-selected-packages package-selected-packages))
1658 (add-hook 'after-init-hook #'package--save-selected-packages)))
1660 (defun package--user-selected-p (pkg)
1661 "Return non-nil if PKG is a package was installed by the user.
1662 PKG is a package name.
1663 This looks into `package-selected-packages', populating it first
1664 if it is still empty."
1665 (unless (consp package-selected-packages)
1666 (package--save-selected-packages (package--find-non-dependencies)))
1667 (memq pkg package-selected-packages))
1669 (defun package--get-deps (pkg &optional only)
1670 (let* ((pkg-desc (cadr (assq pkg package-alist)))
1671 (direct-deps (cl-loop for p in (package-desc-reqs pkg-desc)
1673 when (assq name package-alist)
1675 (indirect-deps (unless (eq only 'direct)
1677 (cl-loop for p in direct-deps
1678 append (package--get-deps p))))))
1680 (direct direct-deps)
1681 (separate (list direct-deps indirect-deps))
1682 (indirect indirect-deps)
1683 (t (delete-dups (append direct-deps indirect-deps))))))
1685 (defun package--removable-packages ()
1686 "Return a list of names of packages no longer needed.
1687 These are packages which are neither contained in
1688 `package-selected-packages' nor a dependency of one that is."
1689 (let ((needed (cl-loop for p in package-selected-packages
1690 if (assq p package-alist)
1691 ;; `p' and its dependencies are needed.
1692 append (cons p (package--get-deps p)))))
1693 (cl-loop for p in (mapcar #'car package-alist)
1694 unless (memq p needed)
1697 (defun package--used-elsewhere-p (pkg-desc &optional pkg-list all)
1698 "Non-nil if PKG-DESC is a dependency of a package in PKG-LIST.
1699 Return the first package found in PKG-LIST of which PKG is a
1700 dependency. If ALL is non-nil, return all such packages instead.
1702 When not specified, PKG-LIST defaults to `package-alist'
1703 with PKG-DESC entry removed."
1704 (unless (string= (package-desc-status pkg-desc) "obsolete")
1705 (let* ((pkg (package-desc-name pkg-desc))
1707 (remove (assq pkg package-alist)
1710 (cl-loop for p in alist
1711 if (assq pkg (package-desc-reqs (cadr p)))
1713 (cl-loop for p in alist thereis
1714 (and (assq pkg (package-desc-reqs (cadr p)))
1717 (defun package--sort-deps-in-alist (package only)
1718 "Return a list of dependencies for PACKAGE sorted by dependency.
1719 PACKAGE is included as the first element of the returned list.
1720 ONLY is an alist associating package names to package objects.
1721 Only these packages will be in the return value an their cdrs are
1722 destructively set to nil in ONLY."
1724 (dolist (dep (package-desc-reqs package))
1725 (when-let ((cell (assq (car dep) only))
1726 (dep-package (cdr-safe cell)))
1728 (setq out (append (package--sort-deps-in-alist dep-package only)
1730 (cons package out)))
1732 (defun package--sort-by-dependence (package-list)
1733 "Return PACKAGE-LIST sorted by dependence.
1734 That is, any element of the returned list is guaranteed to not
1735 directly depend on any elements that come before it.
1737 PACKAGE-LIST is a list of package-desc objects.
1738 Indirect dependencies are guaranteed to be returned in order only
1739 if all the in-between dependencies are also in PACKAGE-LIST."
1740 (let ((alist (mapcar (lambda (p) (cons (package-desc-name p) p)) package-list))
1742 (dolist (cell alist out-list)
1743 ;; `package--sort-deps-in-alist' destructively changes alist, so
1744 ;; some cells might already be empty. We check this here.
1745 (when-let ((pkg-desc (cdr cell)))
1748 (append (package--sort-deps-in-alist pkg-desc alist)
1752 ;;; Installation Functions
1753 ;; As opposed to the previous section (which listed some underlying
1754 ;; functions necessary for installation), this one contains the actual
1755 ;; functions that install packages. The package itself can be
1756 ;; installed in a variety of ways (archives, buffer, file), but
1757 ;; requirements (dependencies) are always satisfied by looking in
1758 ;; `package-archive-contents'.
1759 (defun package-archive-base (desc)
1760 "Return the archive containing the package NAME."
1761 (cdr (assoc (package-desc-archive desc) package-archives)))
1763 (defun package-install-from-archive (pkg-desc)
1764 "Download and install a tar package."
1765 ;; This won't happen, unless the archive is doing something wrong.
1766 (when (eq (package-desc-kind pkg-desc) 'dir)
1767 (error "Can't install directory package from archive"))
1768 (let* ((location (package-archive-base pkg-desc))
1769 (file (concat (package-desc-full-name pkg-desc)
1770 (package-desc-suffix pkg-desc))))
1771 (package--with-response-buffer location :file file
1772 (if (or (not package-check-signature)
1773 (member (package-desc-archive pkg-desc)
1774 package-unsigned-archives))
1775 ;; If we don't care about the signature, unpack and we're
1777 (let ((save-silently t))
1778 (package-unpack pkg-desc))
1779 ;; If we care, check it and *then* write the file.
1780 (let ((content (buffer-string)))
1781 (package--check-signature
1782 location file content nil
1783 ;; This function will be called after signature checking.
1784 (lambda (&optional good-sigs)
1785 (unless (or good-sigs (eq package-check-signature 'allow-unsigned))
1786 ;; Even if the sig fails, this download is done, so
1787 ;; remove it from the in-progress list.
1788 (error "Unsigned package: `%s'"
1789 (package-desc-name pkg-desc)))
1790 ;; Signature checked, unpack now.
1791 (with-temp-buffer (insert content)
1792 (let ((save-silently t))
1793 (package-unpack pkg-desc)))
1794 ;; Here the package has been installed successfully, mark it as
1795 ;; signed if appropriate.
1797 ;; Write out good signatures into NAME-VERSION.signed file.
1798 (write-region (mapconcat #'epg-signature-to-string good-sigs "\n")
1801 (concat (package-desc-full-name pkg-desc) ".signed")
1804 ;; Update the old pkg-desc which will be shown on the description buffer.
1805 (setf (package-desc-signed pkg-desc) t)
1806 ;; Update the new (activated) pkg-desc as well.
1807 (when-let ((pkg-descs (cdr (assq (package-desc-name pkg-desc) package-alist))))
1808 (setf (package-desc-signed (car pkg-descs)) t))))))))))
1810 (defun package-installed-p (package &optional min-version)
1811 "Return true if PACKAGE, of MIN-VERSION or newer, is installed.
1812 If PACKAGE is a symbol, it is the package name and MIN-VERSION
1813 should be a version list.
1815 If PACKAGE is a package-desc object, MIN-VERSION is ignored."
1816 (unless package--initialized (error "package.el is not yet initialized!"))
1817 (if (package-desc-p package)
1818 (let ((dir (package-desc-dir package)))
1820 (file-exists-p dir)))
1822 (let ((pkg-descs (cdr (assq package package-alist))))
1824 (version-list-<= min-version
1825 (package-desc-version (car pkg-descs)))))
1826 ;; Also check built-in packages.
1827 (package-built-in-p package min-version))))
1829 (defun package-download-transaction (packages)
1830 "Download and install all the packages in PACKAGES.
1831 PACKAGES should be a list of package-desc.
1832 This function assumes that all package requirements in
1833 PACKAGES are satisfied, i.e. that PACKAGES is computed
1834 using `package-compute-transaction'."
1835 (mapc #'package-install-from-archive packages))
1837 (defun package--ensure-init-file ()
1838 "Ensure that the user's init file has `package-initialize'.
1839 `package-initialize' doesn't have to be called, as long as it is
1840 present somewhere in the file, even as a comment. If it is not,
1841 add a call to it along with some explanatory comments."
1842 ;; Don't mess with the init-file from "emacs -Q".
1843 (when (and (stringp user-init-file)
1844 (not package--init-file-ensured)
1845 (file-readable-p user-init-file)
1846 (file-writable-p user-init-file))
1847 (let* ((buffer (find-buffer-visiting user-init-file))
1850 (with-current-buffer buffer
1854 (goto-char (point-min))
1855 (re-search-forward "(package-initialize\\_>" nil 'noerror))))
1856 ;; Don't visit the file if we don't have to.
1858 (insert-file-contents user-init-file)
1859 (goto-char (point-min))
1860 (re-search-forward "(package-initialize\\_>" nil 'noerror)))))
1861 (unless contains-init
1862 (with-current-buffer (or buffer
1863 (let ((delay-mode-hooks t))
1864 (find-file-noselect user-init-file)))
1868 (goto-char (point-min))
1869 (while (and (looking-at-p "[[:blank:]]*\\(;\\|$\\)")
1874 ";; Added by Package.el. This must come before configurations of\n"
1875 ";; installed packages. Don't delete this line. If you don't want it,\n"
1876 ";; just comment it out by adding a semicolon to the start of the line.\n"
1877 ";; You may delete these explanatory comments.\n"
1878 "(package-initialize)\n")
1879 (unless (looking-at-p "$")
1881 (let ((file-precious-flag t))
1884 (kill-buffer (current-buffer)))))))))
1885 (setq package--init-file-ensured t))
1888 (defun package-install (pkg &optional dont-select)
1889 "Install the package PKG.
1890 PKG can be a package-desc or a symbol naming one of the available packages
1891 in an archive in `package-archives'. Interactively, prompt for its name.
1893 If called interactively or if DONT-SELECT nil, add PKG to
1894 `package-selected-packages'.
1896 If PKG is a package-desc and it is already installed, don't try
1897 to install it but still mark it as selected."
1900 ;; Initialize the package system to get the list of package
1901 ;; symbols for completion.
1902 (unless package--initialized
1903 (package-initialize t))
1904 (unless package-archive-contents
1905 (package-refresh-contents))
1906 (list (intern (completing-read
1909 (mapcar (lambda (elt)
1910 (unless (package-installed-p (car elt))
1911 (symbol-name (car elt))))
1912 package-archive-contents))
1915 (add-hook 'post-command-hook #'package-menu--post-refresh)
1916 (let ((name (if (package-desc-p pkg)
1917 (package-desc-name pkg)
1919 (unless (or dont-select (package--user-selected-p name))
1920 (package--save-selected-packages
1921 (cons name package-selected-packages)))
1922 (if-let ((transaction
1923 (if (package-desc-p pkg)
1924 (unless (package-installed-p pkg)
1925 (package-compute-transaction (list pkg)
1926 (package-desc-reqs pkg)))
1927 (package-compute-transaction () (list (list pkg))))))
1928 (package-download-transaction transaction)
1929 (message "`%s' is already installed" name))))
1931 (defun package-strip-rcs-id (str)
1932 "Strip RCS version ID from the version string STR.
1933 If the result looks like a dotted numeric version, return it.
1934 Otherwise return nil."
1936 (when (string-match "\\`[ \t]*[$]Revision:[ \t]+" str)
1937 (setq str (substring str (match-end 0))))
1939 (if (version-to-list str) str))))
1941 (declare-function lm-homepage "lisp-mnt" (&optional file))
1944 (defun package-install-from-buffer ()
1945 "Install a package from the current buffer.
1946 The current buffer is assumed to be a single .el or .tar file or
1947 a directory. These must follow the packaging guidelines (see
1948 info node `(elisp)Packaging').
1950 Specially, if current buffer is a directory, the -pkg.el
1951 description file is not mandatory, in which case the information
1952 is derived from the main .el file in the directory.
1954 Downloads and installs required packages as needed."
1958 ((derived-mode-p 'dired-mode)
1959 ;; This is the only way a package-desc object with a `dir'
1960 ;; desc-kind can be created. Such packages can't be
1961 ;; uploaded or installed from archives, they can only be
1962 ;; installed from local buffers or directories.
1964 ((derived-mode-p 'tar-mode)
1965 (package-tar-file-info))
1967 (package-buffer-info))))
1968 (name (package-desc-name pkg-desc)))
1969 ;; Download and install the dependencies.
1970 (let* ((requires (package-desc-reqs pkg-desc))
1971 (transaction (package-compute-transaction nil requires)))
1972 (package-download-transaction transaction))
1973 ;; Install the package itself.
1974 (package-unpack pkg-desc)
1975 (unless (package--user-selected-p name)
1976 (package--save-selected-packages
1977 (cons name package-selected-packages)))
1981 (defun package-install-file (file)
1982 "Install a package from a file.
1983 The file can either be a tar file, an Emacs Lisp file, or a
1985 (interactive "fPackage file name: ")
1987 (if (file-directory-p file)
1989 (setq default-directory file)
1991 (insert-file-contents-literally file)
1992 (when (string-match "\\.tar\\'" file) (tar-mode)))
1993 (package-install-from-buffer)))
1996 (defun package-install-selected-packages ()
1997 "Ensure packages in `package-selected-packages' are installed.
1998 If some packages are not installed propose to install them."
2000 ;; We don't need to populate `package-selected-packages' before
2001 ;; using here, because the outcome is the same either way (nothing
2003 (if (not package-selected-packages)
2004 (message "`package-selected-packages' is empty, nothing to install")
2005 (cl-loop for p in package-selected-packages
2006 unless (package-installed-p p)
2011 (format "%s packages will be installed:\n%s, proceed?"
2013 (mapconcat #'symbol-name lst ", ")))
2014 (mapc #'package-install lst))
2015 (message "All your packages are already installed")))))
2018 ;;; Package Deletion
2019 (defun package--newest-p (pkg)
2020 "Return t if PKG is the newest package with its name."
2021 (equal (cadr (assq (package-desc-name pkg) package-alist))
2024 (defun package-delete (pkg-desc &optional force nosave)
2025 "Delete package PKG-DESC.
2027 Argument PKG-DESC is a full description of package as vector.
2028 Interactively, prompt the user for the package name and version.
2030 When package is used elsewhere as dependency of another package,
2031 refuse deleting it and return an error.
2032 If prefix argument FORCE is non-nil, package will be deleted even
2033 if it is used elsewhere.
2034 If NOSAVE is non-nil, the package is not removed from
2035 `package-selected-packages'."
2038 ;; Initialize the package system to get the list of package
2039 ;; symbols for completion.
2040 (unless package--initialized
2041 (package-initialize t))
2042 (let* ((package-table
2044 (lambda (p) (cons (package-desc-full-name p) p))
2046 (mapcar (lambda (p) (unless (package-built-in-p p) p))
2047 (apply #'append (mapcar #'cdr package-alist))))))
2048 (package-name (completing-read "Delete package: "
2049 (mapcar #'car package-table)
2051 (list (cdr (assoc package-name package-table))
2052 current-prefix-arg nil))))
2053 (let ((dir (package-desc-dir pkg-desc))
2054 (name (package-desc-name pkg-desc))
2055 pkg-used-elsewhere-by)
2056 ;; If the user is trying to delete this package, they definitely
2057 ;; don't want it marked as selected, so we remove it from
2058 ;; `package-selected-packages' even if it can't be deleted.
2059 (when (and (null nosave)
2060 (package--user-selected-p name)
2061 ;; Don't deselect if this is an older version of an
2062 ;; upgraded package.
2063 (package--newest-p pkg-desc))
2064 (package--save-selected-packages (remove name package-selected-packages)))
2065 (cond ((not (string-prefix-p (file-name-as-directory
2066 (expand-file-name package-user-dir))
2067 (expand-file-name dir)))
2068 ;; Don't delete "system" packages.
2069 (error "Package `%s' is a system package, not deleting"
2070 (package-desc-full-name pkg-desc)))
2072 (setq pkg-used-elsewhere-by
2073 (package--used-elsewhere-p pkg-desc)))
2074 ;; Don't delete packages used as dependency elsewhere.
2075 (error "Package `%s' is used by `%s' as dependency, not deleting"
2076 (package-desc-full-name pkg-desc)
2077 (package-desc-name pkg-used-elsewhere-by)))
2079 (add-hook 'post-command-hook #'package-menu--post-refresh)
2080 (delete-directory dir t t)
2081 ;; Remove NAME-VERSION.signed file.
2082 (let ((signed-file (concat dir ".signed")))
2083 (if (file-exists-p signed-file)
2084 (delete-file signed-file)))
2085 ;; Update package-alist.
2086 (let ((pkgs (assq name package-alist)))
2087 (delete pkg-desc pkgs)
2089 (setq package-alist (delq pkgs package-alist))))
2090 (message "Package `%s' deleted." (package-desc-full-name pkg-desc))))))
2093 (defun package-reinstall (pkg)
2094 "Reinstall package PKG.
2095 PKG should be either a symbol, the package name, or a package-desc
2097 (interactive (list (intern (completing-read
2098 "Reinstall package: "
2099 (mapcar #'symbol-name
2100 (mapcar #'car package-alist))))))
2102 (if (package-desc-p pkg) pkg (cadr (assq pkg package-alist)))
2104 (package-install pkg 'dont-select))
2107 (defun package-autoremove ()
2108 "Remove packages that are no more needed.
2110 Packages that are no more needed by other packages in
2111 `package-selected-packages' and their dependencies
2114 ;; If `package-selected-packages' is nil, it would make no sense to
2115 ;; try to populate it here, because then `package-autoremove' will
2116 ;; do absolutely nothing.
2117 (when (or package-selected-packages
2120 "`package-selected-packages' is empty! Really remove ALL packages? ")))
2121 (let ((removable (package--removable-packages)))
2124 (format "%s packages will be deleted:\n%s, proceed? "
2126 (mapconcat #'symbol-name removable ", ")))
2128 (package-delete (cadr (assq p package-alist)) t))
2130 (message "Nothing to autoremove")))))
2133 ;;;; Package description buffer.
2136 (defun describe-package (package)
2137 "Display the full documentation of PACKAGE (a symbol)."
2139 (let* ((guess (or (function-called-at-point)
2140 (symbol-at-point))))
2141 (require 'finder-inf nil t)
2142 ;; Load the package list if necessary (but don't activate them).
2143 (unless package--initialized
2144 (package-initialize t))
2145 (let ((packages (append (mapcar 'car package-alist)
2146 (mapcar 'car package-archive-contents)
2147 (mapcar 'car package--builtins))))
2148 (unless (memq guess packages)
2150 (setq packages (mapcar 'symbol-name packages))
2152 (completing-read (if guess
2153 (format "Describe package (default %s): "
2155 "Describe package: ")
2156 packages nil t nil nil (when guess
2157 (symbol-name guess)))))
2158 (list (intern val))))))
2159 (if (not (or (package-desc-p package) (and package (symbolp package))))
2160 (message "No package specified")
2161 (help-setup-xref (list #'describe-package package)
2162 (called-interactively-p 'interactive))
2163 (with-help-window (help-buffer)
2164 (with-current-buffer standard-output
2165 (describe-package-1 package)))))
2167 (defface package-help-section-name
2168 '((t :inherit (bold font-lock-function-name-face)))
2169 "Face used on section names in package description buffers."
2172 (defun package--print-help-section (name &rest strings)
2173 "Print \"NAME: \", right aligned to the 13th column.
2174 If more STRINGS are provided, insert them followed by a newline.
2175 Otherwise no newline is inserted."
2176 (declare (indent 1))
2177 (insert (make-string (max 0 (- 11 (string-width name))) ?\s)
2178 (propertize (concat name ": ") 'font-lock-face 'package-help-section-name))
2180 (apply #'insert strings)
2183 (declare-function lm-commentary "lisp-mnt" (&optional file))
2185 (defun describe-package-1 (pkg)
2188 (if (package-desc-p pkg) pkg)
2189 (cadr (assq pkg package-alist))
2190 (let ((built-in (assq pkg package--builtins)))
2192 (package--from-builtin built-in)
2193 (cadr (assq pkg package-archive-contents))))))
2194 (name (if desc (package-desc-name desc) pkg))
2195 (pkg-dir (if desc (package-desc-dir desc)))
2196 (reqs (if desc (package-desc-reqs desc)))
2197 (required-by (if desc (package--used-elsewhere-p desc nil 'all)))
2198 (version (if desc (package-desc-version desc)))
2199 (archive (if desc (package-desc-archive desc)))
2200 (extras (and desc (package-desc-extras desc)))
2201 (homepage (cdr (assoc :url extras)))
2202 (keywords (if desc (package-desc--keywords desc)))
2203 (built-in (eq pkg-dir 'builtin))
2204 (installable (and archive (not built-in)))
2205 (status (if desc (package-desc-status desc) "orphan"))
2206 (incompatible-reason (package--incompatible-p desc))
2207 (signed (if desc (package-desc-signed desc))))
2208 (when (string= status "avail-obso")
2209 (setq status "available obsolete"))
2210 (when incompatible-reason
2211 (setq status "incompatible"))
2214 (princ (if (memq (aref status 0) '(?a ?e ?i ?o ?u)) "an " "a "))
2216 (princ " package.\n\n")
2218 (package--print-help-section "Status")
2220 (insert (propertize (capitalize status)
2221 'font-lock-face 'package-status-builtin-face)
2224 (insert (propertize (if (member status '("unsigned" "dependency"))
2226 (capitalize status))
2227 'font-lock-face 'package-status-builtin-face))
2228 (insert (substitute-command-keys " in `"))
2229 (let ((dir (abbreviate-file-name
2230 (file-name-as-directory
2231 (if (file-in-directory-p pkg-dir package-user-dir)
2232 (file-relative-name pkg-dir package-user-dir)
2234 (help-insert-xref-button dir 'help-package-def pkg-dir))
2235 (if (and (package-built-in-p name)
2236 (not (package-built-in-p name version)))
2237 (insert (substitute-command-keys
2238 "',\n shadowing a ")
2239 (propertize "built-in package"
2240 'font-lock-face 'package-status-builtin-face))
2241 (insert (substitute-command-keys "'")))
2244 (insert " (unsigned)."))
2245 (when (and (package-desc-p desc)
2247 (member status '("unsigned" "installed")))
2249 (package-make-button "Delete"
2250 'action #'package-delete-button-action
2251 'package-desc desc)))
2252 (incompatible-reason
2253 (insert (propertize "Incompatible" 'font-lock-face font-lock-warning-face)
2254 " because it depends on ")
2255 (if (stringp incompatible-reason)
2256 (insert "Emacs " incompatible-reason ".")
2257 (insert "uninstallable packages.")))
2259 (insert (capitalize status))
2260 (insert " from " (format "%s" archive))
2262 (package-make-button
2264 'action 'package-install-button-action
2265 'package-desc desc))
2266 (t (insert (capitalize status) ".")))
2268 (unless (and pkg-dir (not archive)) ; Installed pkgs don't have archive.
2269 (package--print-help-section "Archive"
2270 (or archive "n/a") "\n"))
2272 (package--print-help-section "Version"
2273 (package-version-join version)))
2275 (package--print-help-section "Summary"
2276 (package-desc-summary desc)))
2278 (setq reqs (if desc (package-desc-reqs desc)))
2280 (package--print-help-section "Requires")
2283 (let* ((name (car req))
2285 (text (format "%s-%s" (symbol-name name)
2286 (package-version-join vers)))
2287 (reason (if (and (listp incompatible-reason)
2288 (assq name incompatible-reason))
2289 " (not available)" "")))
2290 (cond (first (setq first nil))
2291 ((>= (+ 2 (current-column) (length text) (length reason))
2295 (help-insert-xref-button text 'help-package name)
2299 (package--print-help-section "Required by")
2301 (dolist (pkg required-by)
2302 (let ((text (package-desc-full-name pkg)))
2303 (cond (first (setq first nil))
2304 ((>= (+ 2 (current-column) (length text))
2308 (help-insert-xref-button text 'help-package
2309 (package-desc-name pkg))))
2312 (package--print-help-section "Homepage")
2313 (help-insert-xref-button homepage 'help-url homepage)
2316 (package--print-help-section "Keywords")
2317 (dolist (k keywords)
2318 (package-make-button
2321 'action 'package-keyword-button-action)
2324 (let* ((all-pkgs (append (cdr (assq name package-alist))
2325 (cdr (assq name package-archive-contents))
2326 (let ((bi (assq name package--builtins)))
2327 (if bi (list (package--from-builtin bi))))))
2328 (other-pkgs (delete desc all-pkgs)))
2330 (package--print-help-section "Other versions"
2331 (mapconcat (lambda (opkg)
2332 (let* ((ov (package-desc-version opkg))
2333 (dir (package-desc-dir opkg))
2334 (from (or (package-desc-archive opkg)
2335 (if (stringp dir) "installed" dir))))
2336 (if (not ov) (format "%s" from)
2338 (make-text-button (package-version-join ov) nil
2339 'font-lock-face 'link
2343 (describe-package opkg)))
2351 ;; For built-in packages, insert the commentary.
2352 (let ((fn (locate-file (format "%s.el" name) load-path
2353 load-file-rep-suffixes))
2355 (insert (or (lm-commentary fn) ""))
2358 (when (re-search-forward "^;;; Commentary:\n" nil t)
2360 (while (re-search-forward "^\\(;+ ?\\)" nil t)
2361 (replace-match ""))))
2362 (let* ((basename (format "%s-readme.txt" name))
2363 (readme (expand-file-name basename package-user-dir))
2365 ;; For elpa packages, try downloading the commentary. If that
2366 ;; fails, try an existing readme file in `package-user-dir'.
2367 (cond ((and (package-desc-archive desc)
2368 (package--with-response-buffer (package-archive-base desc)
2369 :file basename :noerror t
2371 (goto-char (point-max))
2374 (write-region nil nil
2375 (expand-file-name readme package-user-dir)
2377 (setq readme-string (buffer-string))
2379 (insert readme-string))
2380 ((file-readable-p readme)
2381 (insert-file-contents readme)
2382 (goto-char (point-max))))))))
2384 (defun package-install-button-action (button)
2385 (let ((pkg-desc (button-get button 'package-desc)))
2386 (when (y-or-n-p (format-message "Install package `%s'? "
2387 (package-desc-full-name pkg-desc)))
2388 (package-install pkg-desc nil)
2389 (revert-buffer nil t)
2390 (goto-char (point-min)))))
2392 (defun package-delete-button-action (button)
2393 (let ((pkg-desc (button-get button 'package-desc)))
2394 (when (y-or-n-p (format-message "Delete package `%s'? "
2395 (package-desc-full-name pkg-desc)))
2396 (package-delete pkg-desc)
2397 (revert-buffer nil t)
2398 (goto-char (point-min)))))
2400 (defun package-keyword-button-action (button)
2401 (let ((pkg-keyword (button-get button 'package-keyword)))
2402 (package-show-package-list t (list pkg-keyword))))
2404 (defun package-make-button (text &rest props)
2405 (let ((button-text (if (display-graphic-p) text (concat "[" text "]")))
2406 (button-face (if (display-graphic-p)
2407 '(:box (:line-width 2 :color "dark grey")
2408 :background "light grey"
2409 :foreground "black")
2411 (apply 'insert-text-button button-text 'face button-face 'follow-link t
2415 ;;;; Package menu mode.
2417 (defvar package-menu-mode-map
2418 (let ((map (make-sparse-keymap)))
2419 (set-keymap-parent map tabulated-list-mode-map)
2420 (define-key map "\C-m" 'package-menu-describe-package)
2421 (define-key map "u" 'package-menu-mark-unmark)
2422 (define-key map "\177" 'package-menu-backup-unmark)
2423 (define-key map "d" 'package-menu-mark-delete)
2424 (define-key map "i" 'package-menu-mark-install)
2425 (define-key map "U" 'package-menu-mark-upgrades)
2426 (define-key map "r" 'package-menu-refresh)
2427 (define-key map "f" 'package-menu-filter)
2428 (define-key map "~" 'package-menu-mark-obsolete-for-deletion)
2429 (define-key map "x" 'package-menu-execute)
2430 (define-key map "h" 'package-menu-quick-help)
2431 (define-key map "H" #'package-menu-hide-package)
2432 (define-key map "?" 'package-menu-describe-package)
2433 (define-key map "(" #'package-menu-toggle-hiding)
2435 "Local keymap for `package-menu-mode' buffers.")
2437 (easy-menu-define package-menu-mode-menu package-menu-mode-map
2438 "Menu for `package-menu-mode'."
2440 ["Describe Package" package-menu-describe-package :help "Display information about this package"]
2441 ["Help" package-menu-quick-help :help "Show short key binding help for package-menu-mode"]
2443 ["Refresh Package List" package-menu-refresh
2444 :help "Redownload the ELPA archive"
2445 :active (not package--downloads-in-progress)]
2446 ["Redisplay buffer" revert-buffer :help "Update the buffer with current list of packages"]
2447 ["Execute Marked Actions" package-menu-execute :help "Perform all the marked actions"]
2450 ["Mark All Available Upgrades" package-menu-mark-upgrades
2451 :help "Mark packages that have a newer version for upgrading"
2452 :active (not package--downloads-in-progress)]
2453 ["Mark All Obsolete for Deletion" package-menu-mark-obsolete-for-deletion :help "Mark all obsolete packages for deletion"]
2454 ["Mark for Install" package-menu-mark-install :help "Mark a package for installation and move to the next line"]
2455 ["Mark for Deletion" package-menu-mark-delete :help "Mark a package for deletion and move to the next line"]
2456 ["Unmark" package-menu-mark-unmark :help "Clear any marks on a package and move to the next line"]
2459 ["Filter Package List" package-menu-filter :help "Filter package selection (q to go back)"]
2460 ["Hide by Regexp" package-menu-hide-package :help "Permanently hide all packages matching a regexp"]
2461 ["Display Older Versions" package-menu-toggle-hiding
2462 :style toggle :selected (not package-menu--hide-packages)
2463 :help "Display package even if a newer version is already installed"]
2466 ["Quit" quit-window :help "Quit package selection"]
2467 ["Customize" (customize-group 'package)]))
2469 (defvar package-menu--new-package-list nil
2470 "List of newly-available packages since `list-packages' was last called.")
2472 (defvar package-menu--transaction-status nil
2473 "Mode-line status of ongoing package transaction.")
2475 (define-derived-mode package-menu-mode tabulated-list-mode "Package Menu"
2476 "Major mode for browsing a list of packages.
2477 Letters do not insert themselves; instead, they are commands.
2478 \\<package-menu-mode-map>
2479 \\{package-menu-mode-map}"
2480 (setq mode-line-process '((package--downloads-in-progress ":Loading")
2481 (package-menu--transaction-status
2482 package-menu--transaction-status)))
2483 (setq tabulated-list-format
2484 `[("Package" 18 package-menu--name-predicate)
2486 ("Status" 10 package-menu--status-predicate)
2487 ,@(if (cdr package-archives)
2488 '(("Archive" 10 package-menu--archive-predicate)))
2489 ("Description" 0 nil)])
2490 (setq tabulated-list-padding 2)
2491 (setq tabulated-list-sort-key (cons "Status" nil))
2492 (add-hook 'tabulated-list-revert-hook 'package-menu--refresh nil t)
2493 (tabulated-list-init-header))
2495 (defmacro package--push (pkg-desc status listname)
2496 "Convenience macro for `package-menu--generate'.
2497 If the alist stored in the symbol LISTNAME lacks an entry for a
2498 package PKG-DESC, add one. The alist is keyed with PKG-DESC."
2499 `(unless (assoc ,pkg-desc ,listname)
2500 ;; FIXME: Should we move status into pkg-desc?
2501 (push (cons ,pkg-desc ,status) ,listname)))
2503 (defvar package-list-unversioned nil
2504 "If non-nil include packages that don't have a version in `list-package'.")
2506 (defvar package-list-unsigned nil
2507 "If non-nil, mention in the list which packages were installed w/o signature.")
2509 (defvar package--emacs-version-list (version-to-list emacs-version)
2510 "`emacs-version', as a list.")
2512 (defun package--incompatible-p (pkg &optional shallow)
2513 "Return non-nil if PKG has no chance of being installable.
2514 PKG is a package-desc object.
2516 If SHALLOW is non-nil, this only checks if PKG depends on a
2517 higher `emacs-version' than the one being used. Otherwise, also
2518 checks the viability of dependencies, according to
2519 `package--compatibility-table'.
2521 If PKG requires an incompatible Emacs version, the return value
2522 is this version (as a string).
2523 If PKG requires incompatible packages, the return value is a list
2524 of these dependencies, similar to the list returned by
2525 `package-desc-reqs'."
2526 (let* ((reqs (package-desc-reqs pkg))
2527 (version (cadr (assq 'emacs reqs))))
2528 (if (and version (version-list-< package--emacs-version-list version))
2529 (package-version-join version)
2532 (dolist (dep (package-desc-reqs pkg) out)
2533 (let ((dep-name (car dep)))
2534 (unless (eq 'emacs dep-name)
2535 (let ((cv (gethash dep-name package--compatibility-table)))
2536 (when (version-list-< (or cv '(0)) (or (cadr dep) '(0)))
2537 (push dep out)))))))))))
2539 (defun package-desc-status (pkg-desc)
2540 (let* ((name (package-desc-name pkg-desc))
2541 (dir (package-desc-dir pkg-desc))
2542 (lle (assq name package-load-list))
2544 (version (package-desc-version pkg-desc))
2545 (signed (or (not package-list-unsigned)
2546 (package-desc-signed pkg-desc))))
2548 ((eq dir 'builtin) "built-in")
2549 ((and lle (null held)) "disabled")
2551 (let ((hv (if (stringp held) (version-to-list held))))
2553 ((version-list-= version hv) "held")
2554 ((version-list-< version hv) "obsolete")
2556 (dir ;One of the installed packages.
2558 ((not (file-exists-p dir)) "deleted")
2559 ;; Not inside `package-user-dir'.
2560 ((not (file-in-directory-p dir package-user-dir)) "external")
2561 ((eq pkg-desc (cadr (assq name package-alist)))
2562 (if (not signed) "unsigned"
2563 (if (package--user-selected-p name)
2564 "installed" "dependency")))
2566 ((package--incompatible-p pkg-desc) "incompat")
2568 (let* ((ins (cadr (assq name package-alist)))
2569 (ins-v (if ins (package-desc-version ins))))
2571 ;; Installed obsolete packages are handled in the `dir'
2572 ;; clause above. Here we handle available obsolete, which
2573 ;; are displayed depending on `package-menu--hide-packages'.
2574 ((and ins (version-list-<= version ins-v)) "avail-obso")
2576 (if (memq name package-menu--new-package-list)
2577 "new" "available"))))))))
2579 (defvar package-menu--hide-packages t
2580 "Whether available obsolete packages should be hidden.
2581 Can be toggled with \\<package-menu-mode-map> \\[package-menu-toggle-hiding].
2582 Installed obsolete packages are always displayed.")
2584 (defun package-menu-toggle-hiding ()
2585 "Toggle visibility of obsolete available packages."
2587 (unless (derived-mode-p 'package-menu-mode)
2588 (user-error "The current buffer is not a Package Menu"))
2589 (setq package-menu--hide-packages
2590 (not package-menu--hide-packages))
2591 (message "%s packages" (if package-menu--hide-packages
2592 "Hiding obsolete or unwanted"
2594 (revert-buffer nil 'no-confirm))
2596 (defun package--remove-hidden (pkg-list)
2597 "Filter PKG-LIST according to `package-archive-priorities'.
2598 PKG-LIST must be a list of package-desc objects, all with the
2599 same name, sorted by decreasing `package-desc-priority-version'.
2600 Return a list of packages tied for the highest priority according
2603 ;; Variable toggled with `package-menu-toggle-hiding'.
2604 (if (not package-menu--hide-packages)
2606 (let ((installed (cadr (assq (package-desc-name (car pkg-list))
2610 (let ((ins-version (package-desc-version installed)))
2611 (cl-remove-if (lambda (p) (version-list-< (package-desc-version p)
2614 (let ((filtered-by-priority
2616 ((not package-menu-hide-low-priority)
2618 ((eq package-menu-hide-low-priority 'archive)
2619 (let* ((max-priority most-negative-fixnum)
2622 (let ((p (pop pkg-list)))
2623 (let ((priority (package-desc-priority p)))
2624 (if (< priority max-priority)
2627 (setq max-priority priority)))))
2630 (list (car pkg-list))))))
2632 filtered-by-priority
2633 (let ((ins-version (package-desc-version installed)))
2634 (cl-remove-if (lambda (p) (version-list-= (package-desc-version p)
2636 filtered-by-priority))))))))
2638 (defcustom package-hidden-regexps nil
2639 "List of regexps matching the name of packages to hide.
2640 If the name of a package matches any of these regexps it is
2641 omitted from the package menu. To toggle this, type \\[package-menu-toggle-hiding].
2643 Values can be interactively added to this list by typing
2644 \\[package-menu-hide-package] on a package"
2645 :type '(repeat (regexp :tag "Hide packages with name matching")))
2647 (defun package-menu--refresh (&optional packages keywords)
2648 "Re-populate the `tabulated-list-entries'.
2649 PACKAGES should be nil or t, which means to display all known packages.
2650 KEYWORDS should be nil or a list of keywords."
2651 ;; Construct list of (PKG-DESC . STATUS).
2652 (unless packages (setq packages t))
2653 (let ((hidden-names (mapconcat #'identity package-hidden-regexps "\\|"))
2655 ;; Installed packages:
2656 (dolist (elt package-alist)
2657 (let ((name (car elt)))
2658 (when (or (eq packages t) (memq name packages))
2659 (dolist (pkg (cdr elt))
2660 (when (package--has-keyword-p pkg keywords)
2661 (push pkg info-list))))))
2663 ;; Built-in packages:
2664 (dolist (elt package--builtins)
2665 (let ((pkg (package--from-builtin elt))
2667 (when (not (eq name 'emacs)) ; Hide the `emacs' package.
2668 (when (and (package--has-keyword-p pkg keywords)
2669 (or package-list-unversioned
2670 (package--bi-desc-version (cdr elt)))
2671 (or (eq packages t) (memq name packages)))
2672 (push pkg info-list)))))
2674 ;; Available and disabled packages:
2675 (unless (equal package--old-archive-priorities package-archive-priorities)
2676 (package-read-all-archive-contents))
2677 (dolist (elt package-archive-contents)
2678 (let ((name (car elt)))
2679 ;; To be displayed it must be in PACKAGES;
2680 (when (and (or (eq packages t) (memq name packages))
2681 ;; and we must either not be hiding anything,
2682 (or (not package-menu--hide-packages)
2683 (not package-hidden-regexps)
2684 ;; or just not hiding this specific package.
2685 (not (string-match hidden-names (symbol-name name)))))
2686 ;; Hide available-obsolete or low-priority packages.
2687 (dolist (pkg (package--remove-hidden (cdr elt)))
2688 (when (package--has-keyword-p pkg keywords)
2689 (push pkg info-list))))))
2691 ;; Print the result.
2692 (setq tabulated-list-entries
2693 (mapcar #'package-menu--print-info-simple info-list))))
2695 (defun package-all-keywords ()
2696 "Collect all package keywords"
2698 (package--mapc (lambda (desc)
2699 (setq key-list (append (package-desc--keywords desc)
2703 (defun package--mapc (function &optional packages)
2704 "Call FUNCTION for all known PACKAGES.
2705 PACKAGES can be nil or t, which means to display all known
2706 packages, or a list of packages.
2708 Built-in packages are converted with `package--from-builtin'."
2709 (unless packages (setq packages t))
2711 ;; Installed packages:
2712 (dolist (elt package-alist)
2713 (setq name (car elt))
2714 (when (or (eq packages t) (memq name packages))
2715 (mapc function (cdr elt))))
2717 ;; Built-in packages:
2718 (dolist (elt package--builtins)
2719 (setq name (car elt))
2720 (when (and (not (eq name 'emacs)) ; Hide the `emacs' package.
2721 (or package-list-unversioned
2722 (package--bi-desc-version (cdr elt)))
2723 (or (eq packages t) (memq name packages)))
2724 (funcall function (package--from-builtin elt))))
2726 ;; Available and disabled packages:
2727 (dolist (elt package-archive-contents)
2728 (setq name (car elt))
2729 (when (or (eq packages t) (memq name packages))
2730 (dolist (pkg (cdr elt))
2731 ;; Hide obsolete packages.
2732 (unless (package-installed-p (package-desc-name pkg)
2733 (package-desc-version pkg))
2734 (funcall function pkg)))))))
2736 (defun package--has-keyword-p (desc &optional keywords)
2737 "Test if package DESC has any of the given KEYWORDS.
2738 When none are given, the package matches."
2740 (let ((desc-keywords (and desc (package-desc--keywords desc)))
2742 (while (and (not found) keywords)
2743 (let ((k (pop keywords)))
2745 (or (string= k (concat "arc:" (package-desc-archive desc)))
2746 (string= k (concat "status:" (package-desc-status desc)))
2747 (member k desc-keywords)))))
2751 (defun package-menu--generate (remember-pos packages &optional keywords)
2752 "Populate the Package Menu.
2753 If REMEMBER-POS is non-nil, keep point on the same entry.
2754 PACKAGES should be t, which means to display all known packages,
2755 or a list of package names (symbols) to display.
2757 With KEYWORDS given, only packages with those keywords are
2759 (package-menu--refresh packages keywords)
2760 (setf (car (aref tabulated-list-format 0))
2762 (let ((filters (mapconcat 'identity keywords ",")))
2763 (concat "Package[" filters "]"))
2766 (define-key package-menu-mode-map "q" 'package-show-package-list)
2767 (define-key package-menu-mode-map "q" 'quit-window))
2768 (tabulated-list-init-header)
2769 (tabulated-list-print remember-pos))
2771 (defun package-menu--print-info (pkg)
2772 "Return a package entry suitable for `tabulated-list-entries'.
2773 PKG has the form (PKG-DESC . STATUS).
2774 Return (PKG-DESC [NAME VERSION STATUS DOC])."
2775 (package-menu--print-info-simple (car pkg)))
2776 (make-obsolete 'package-menu--print-info
2777 'package-menu--print-info-simple "25.1")
2780 ;;; Package menu faces
2781 (defface package-name
2782 '((t :inherit link))
2783 "Face used on package names in the package menu."
2786 (defface package-description
2787 '((t :inherit default))
2788 "Face used on package description summaries in the package menu."
2791 (defface package-status-built-in
2792 '((t :inherit font-lock-builtin-face))
2793 "Face used on the status and version of built-in packages."
2796 (defface package-status-external
2797 '((t :inherit package-status-builtin-face))
2798 "Face used on the status and version of external packages."
2801 (defface package-status-available
2802 '((t :inherit default))
2803 "Face used on the status and version of available packages."
2806 (defface package-status-new
2807 '((t :inherit (bold package-status-available)))
2808 "Face used on the status and version of new packages."
2811 (defface package-status-held
2812 '((t :inherit font-lock-constant-face))
2813 "Face used on the status and version of held packages."
2816 (defface package-status-disabled
2817 '((t :inherit font-lock-warning-face))
2818 "Face used on the status and version of disabled packages."
2821 (defface package-status-installed
2822 '((t :inherit font-lock-comment-face))
2823 "Face used on the status and version of installed packages."
2826 (defface package-status-dependency
2827 '((t :inherit package-status-installed))
2828 "Face used on the status and version of dependency packages."
2831 (defface package-status-unsigned
2832 '((t :inherit font-lock-warning-face))
2833 "Face used on the status and version of unsigned packages."
2836 (defface package-status-incompat
2837 '((t :inherit font-lock-comment-face))
2838 "Face used on the status and version of incompat packages."
2841 (defface package-status-avail-obso
2842 '((t :inherit package-status-incompat))
2843 "Face used on the status and version of avail-obso packages."
2847 ;;; Package menu printing
2848 (defun package-menu--print-info-simple (pkg)
2849 "Return a package entry suitable for `tabulated-list-entries'.
2850 PKG is a package-desc object.
2851 Return (PKG-DESC [NAME VERSION STATUS DOC])."
2852 (let* ((status (package-desc-status pkg))
2854 (`"built-in" 'package-status-built-in)
2855 (`"external" 'package-status-external)
2856 (`"available" 'package-status-available)
2857 (`"avail-obso" 'package-status-avail-obso)
2858 (`"new" 'package-status-new)
2859 (`"held" 'package-status-held)
2860 (`"disabled" 'package-status-disabled)
2861 (`"installed" 'package-status-installed)
2862 (`"dependency" 'package-status-dependency)
2863 (`"unsigned" 'package-status-unsigned)
2864 (`"incompat" 'package-status-incompat)
2865 (_ 'font-lock-warning-face)))) ; obsolete.
2867 `[(,(symbol-name (package-desc-name pkg))
2869 font-lock-face package-name
2872 action package-menu-describe-package)
2873 ,(propertize (package-version-join
2874 (package-desc-version pkg))
2875 'font-lock-face face)
2876 ,(propertize status 'font-lock-face face)
2877 ,@(if (cdr package-archives)
2878 (list (propertize (or (package-desc-archive pkg) "")
2879 'font-lock-face face)))
2880 ,(propertize (package-desc-summary pkg)
2881 'font-lock-face 'package-description)])))
2883 (defvar package-menu--old-archive-contents nil
2884 "`package-archive-contents' before the latest refresh.")
2886 (defun package-menu-refresh ()
2887 "Download the Emacs Lisp package archive.
2888 This fetches the contents of each archive specified in
2889 `package-archives', and then refreshes the package menu."
2891 (unless (derived-mode-p 'package-menu-mode)
2892 (user-error "The current buffer is not a Package Menu"))
2893 (setq package-menu--old-archive-contents package-archive-contents)
2894 (setq package-menu--new-package-list nil)
2895 (package-refresh-contents package-menu-async))
2897 (defun package-menu-hide-package ()
2898 "Hide a package under point.
2899 If optional arg BUTTON is non-nil, describe its associated package."
2901 (declare (interactive-only "change `package-hidden-regexps' instead."))
2902 (let* ((name (when (derived-mode-p 'package-menu-mode)
2903 (concat "\\`" (regexp-quote (symbol-name (package-desc-name
2904 (tabulated-list-get-id)))))))
2905 (re (read-string "Hide packages matching regexp: " name)))
2906 ;; Test if it is valid.
2907 (string-match re "")
2908 (push re package-hidden-regexps)
2909 (customize-save-variable 'package-hidden-regexps package-hidden-regexps)
2910 (package-menu--post-refresh)
2912 (cl-remove-if-not (lambda (e) (string-match re (symbol-name (car e))))
2913 package-archive-contents)))
2914 (message (substitute-command-keys
2915 (concat "Hiding %s packages, type `\\[package-menu-toggle-hiding]'"
2916 " to toggle or `\\[customize-variable] RET package-hidden-regexps'"
2917 " to customize it"))
2920 (defun package-menu-describe-package (&optional button)
2921 "Describe the current package.
2922 If optional arg BUTTON is non-nil, describe its associated package."
2924 (let ((pkg-desc (if button (button-get button 'package-desc)
2925 (tabulated-list-get-id))))
2927 (describe-package pkg-desc)
2928 (user-error "No package here"))))
2930 ;; fixme numeric argument
2931 (defun package-menu-mark-delete (&optional _num)
2932 "Mark a package for deletion and move to the next line."
2934 (if (member (package-menu-get-status)
2935 '("installed" "dependency" "obsolete" "unsigned"))
2936 (tabulated-list-put-tag "D" t)
2939 (defun package-menu-mark-install (&optional _num)
2940 "Mark a package for installation and move to the next line."
2942 (if (member (package-menu-get-status) '("available" "avail-obso" "new" "dependency"))
2943 (tabulated-list-put-tag "I" t)
2946 (defun package-menu-mark-unmark (&optional _num)
2947 "Clear any marks on a package and move to the next line."
2949 (tabulated-list-put-tag " " t))
2951 (defun package-menu-backup-unmark ()
2952 "Back up one line and clear any marks on that package."
2955 (tabulated-list-put-tag " "))
2957 (defun package-menu-mark-obsolete-for-deletion ()
2958 "Mark all obsolete packages for deletion."
2961 (goto-char (point-min))
2963 (if (equal (package-menu-get-status) "obsolete")
2964 (tabulated-list-put-tag "D" t)
2965 (forward-line 1)))))
2967 (defvar package--quick-help-keys
2968 '(("install," "delete," "unmark," ("execute" . 1))
2969 ("next," "previous")
2970 ("Hide-package," "(-toggle-hidden")
2971 ("refresh-contents," "g-redisplay," "filter," "help")))
2973 (defun package--prettify-quick-help-key (desc)
2974 "Prettify DESC to be displayed as a help menu."
2976 (if (listp (cdr desc))
2977 (mapconcat #'package--prettify-quick-help-key desc " ")
2978 (let ((place (cdr desc))
2980 (add-text-properties place (1+ place)
2981 '(face (bold font-lock-warning-face))
2984 (package--prettify-quick-help-key (cons desc 0))))
2986 (defun package-menu-quick-help ()
2987 "Show short key binding help for `package-menu-mode'.
2988 The full list of keys can be viewed with \\[describe-mode]."
2990 (message (mapconcat #'package--prettify-quick-help-key
2991 package--quick-help-keys "\n")))
2993 (define-obsolete-function-alias
2994 'package-menu-view-commentary 'package-menu-describe-package "24.1")
2996 (defun package-menu-get-status ()
2997 (let* ((id (tabulated-list-get-id))
2998 (entry (and id (assoc id tabulated-list-entries))))
3000 (aref (cadr entry) 2)
3003 (defun package-archive-priority (archive)
3004 "Return the priority of ARCHIVE.
3006 The archive priorities are specified in
3007 `package-archive-priorities'. If not given there, the priority
3009 (or (cdr (assoc archive package-archive-priorities))
3012 (defun package-desc-priority-version (pkg-desc)
3013 "Return the version PKG-DESC with the archive priority prepended.
3015 This allows for easy comparison of package versions from
3016 different archives if archive priorities are meant to be taken in
3018 (cons (package-desc-priority pkg-desc)
3019 (package-desc-version pkg-desc)))
3021 (defun package-menu--find-upgrades ()
3022 (let (installed available upgrades)
3023 ;; Build list of installed/available packages in this buffer.
3024 (dolist (entry tabulated-list-entries)
3025 ;; ENTRY is (PKG-DESC [NAME VERSION STATUS DOC])
3026 (let ((pkg-desc (car entry))
3027 (status (aref (cadr entry) 2)))
3028 (cond ((member status '("installed" "dependency" "unsigned"))
3029 (push pkg-desc installed))
3030 ((member status '("available" "new"))
3031 (setq available (package--append-to-alist pkg-desc available))))))
3032 ;; Loop through list of installed packages, finding upgrades.
3033 (dolist (pkg-desc installed)
3034 (let* ((name (package-desc-name pkg-desc))
3035 (avail-pkg (cadr (assq name available))))
3037 (version-list-< (package-desc-priority-version pkg-desc)
3038 (package-desc-priority-version avail-pkg))
3039 (push (cons name avail-pkg) upgrades))))
3042 (defvar package-menu--mark-upgrades-pending nil
3043 "Whether mark-upgrades is waiting for a refresh to finish.")
3045 (defun package-menu--mark-upgrades-1 ()
3046 "Mark all upgradable packages in the Package Menu.
3047 Implementation of `package-menu-mark-upgrades'."
3048 (unless (derived-mode-p 'package-menu-mode)
3049 (error "The current buffer is not a Package Menu"))
3050 (setq package-menu--mark-upgrades-pending nil)
3051 (let ((upgrades (package-menu--find-upgrades)))
3053 (message "No packages to upgrade.")
3056 (goto-char (point-min))
3058 (let* ((pkg-desc (tabulated-list-get-id))
3059 (upgrade (cdr (assq (package-desc-name pkg-desc) upgrades))))
3060 (cond ((null upgrade)
3062 ((equal pkg-desc upgrade)
3063 (package-menu-mark-install))
3065 (package-menu-mark-delete))))))
3066 (message "%d package%s marked for upgrading."
3068 (if (= (length upgrades) 1) "" "s")))))
3070 (defun package-menu-mark-upgrades ()
3071 "Mark all upgradable packages in the Package Menu.
3072 For each installed package with a newer version available, place
3073 an (I)nstall flag on the available version and a (D)elete flag on
3074 the installed version. A subsequent \\[package-menu-execute]
3075 call will upgrade the package.
3077 If there's an async refresh operation in progress, the flags will
3078 be placed as part of `package-menu--post-refresh' instead of
3081 (if (not package--downloads-in-progress)
3082 (package-menu--mark-upgrades-1)
3083 (setq package-menu--mark-upgrades-pending t)
3084 (message "Waiting for refresh to finish...")))
3086 (defun package-menu--list-to-prompt (packages)
3087 "Return a string listing PACKAGES that's usable in a prompt.
3088 PACKAGES is a list of `package-desc' objects.
3089 Formats the returned string to be usable in a minibuffer
3090 prompt (see `package-menu--prompt-transaction-p')."
3096 (format "these %d packages (%s)"
3098 (mapconcat #'package-desc-full-name packages ", ")))
3100 (t (format-message "package `%s'"
3101 (package-desc-full-name (car packages))))))
3103 (defun package-menu--prompt-transaction-p (delete install upgrade)
3104 "Prompt the user about DELETE, INSTALL, and UPGRADE.
3105 DELETE, INSTALL, and UPGRADE are lists of `package-desc' objects.
3106 Either may be nil, but not all."
3109 (when delete "Delete ")
3110 (package-menu--list-to-prompt delete)
3111 (when (and delete install)
3112 (if upgrade "; " "; and "))
3113 (when install "Install ")
3114 (package-menu--list-to-prompt install)
3115 (when (and upgrade (or install delete)) "; and ")
3116 (when upgrade "Upgrade ")
3117 (package-menu--list-to-prompt upgrade)
3120 (defun package-menu--partition-transaction (install delete)
3121 "Return an alist describing an INSTALL DELETE transaction.
3122 Alist contains three entries, upgrade, delete, and install, each
3123 with a list of package names.
3125 The upgrade entry contains any `package-desc' objects in INSTALL
3126 whose name coincides with an object in DELETE. The delete and
3127 the install entries are the same as DELETE and INSTALL with such
3129 (let* ((upg (cl-intersection install delete :key #'package-desc-name))
3130 (ins (cl-set-difference install upg :key #'package-desc-name))
3131 (del (cl-set-difference delete upg :key #'package-desc-name)))
3132 `((delete . ,del) (install . ,ins) (upgrade . ,upg))))
3134 (defun package-menu--perform-transaction (install-list delete-list)
3135 "Install packages in INSTALL-LIST and delete DELETE-LIST."
3137 (let ((status-format (format ":Installing %%d/%d"
3138 (length install-list)))
3140 (package-menu--transaction-status))
3141 (dolist (pkg install-list)
3142 (setq package-menu--transaction-status
3143 (format status-format (cl-incf i)))
3144 (force-mode-line-update)
3146 ;; Don't mark as selected, `package-menu-execute' already
3148 (package-install pkg 'dont-select))))
3149 (let ((package-menu--transaction-status ":Deleting"))
3150 (force-mode-line-update)
3152 (dolist (elt (package--sort-by-dependence delete-list))
3153 (condition-case-unless-debug err
3154 (let ((inhibit-message package-menu-async))
3155 (package-delete elt nil 'nosave))
3156 (error (message "Error trying to delete `%s': %S"
3157 (package-desc-full-name elt)
3160 (defun package--update-selected-packages (add remove)
3161 "Update the `package-selected-packages' list according to ADD and REMOVE.
3162 ADD and REMOVE must be disjoint lists of package names (or
3163 `package-desc' objects) to be added and removed to the selected
3164 packages list, respectively."
3166 (cl-pushnew (if (package-desc-p p) (package-desc-name p) p)
3167 package-selected-packages))
3169 (setq package-selected-packages
3170 (remove (if (package-desc-p p) (package-desc-name p) p)
3171 package-selected-packages)))
3172 (when (or add remove)
3173 (package--save-selected-packages package-selected-packages)))
3175 (defun package-menu-execute (&optional noquery)
3176 "Perform marked Package Menu actions.
3177 Packages marked for installation are downloaded and installed;
3178 packages marked for deletion are removed.
3179 Optional argument NOQUERY non-nil means do not ask the user to confirm."
3181 (unless (derived-mode-p 'package-menu-mode)
3182 (error "The current buffer is not in Package Menu mode"))
3183 (let (install-list delete-list cmd pkg-desc)
3185 (goto-char (point-min))
3187 (setq cmd (char-after))
3188 (unless (eq cmd ?\s)
3189 ;; This is the key PKG-DESC.
3190 (setq pkg-desc (tabulated-list-get-id))
3192 (push pkg-desc delete-list))
3194 (push pkg-desc install-list))))
3196 (unless (or delete-list install-list)
3197 (user-error "No operations specified"))
3198 (let-alist (package-menu--partition-transaction install-list delete-list)
3200 (package-menu--prompt-transaction-p .delete .install .upgrade))
3201 (let ((message-template
3202 (concat "Package menu: Operation %s ["
3203 (when .delete (format "Delet__ %s" (length .delete)))
3204 (when (and .delete .install) "; ")
3205 (when .install (format "Install__ %s" (length .install)))
3206 (when (and .upgrade (or .install .delete)) "; ")
3207 (when .upgrade (format "Upgrad__ %s" (length .upgrade)))
3209 (message (replace-regexp-in-string "__" "ing" message-template) "started")
3210 ;; Packages being upgraded are not marked as selected.
3211 (package--update-selected-packages .install .delete)
3212 (package-menu--perform-transaction install-list delete-list)
3213 (when package-selected-packages
3214 (if-let ((removable (package--removable-packages)))
3215 (message "Package menu: Operation finished. %d packages %s"
3217 (substitute-command-keys
3218 "are no longer needed, type `\\[package-autoremove]' to remove them"))
3219 (message (replace-regexp-in-string "__" "ed" message-template)
3222 (defun package-menu--version-predicate (A B)
3223 (let ((vA (or (aref (cadr A) 1) '(0)))
3224 (vB (or (aref (cadr B) 1) '(0))))
3225 (if (version-list-= vA vB)
3226 (package-menu--name-predicate A B)
3227 (version-list-< vA vB))))
3229 (defun package-menu--status-predicate (A B)
3230 (let ((sA (aref (cadr A) 2))
3231 (sB (aref (cadr B) 2)))
3232 (cond ((string= sA sB)
3233 (package-menu--name-predicate A B))
3234 ((string= sA "new") t)
3235 ((string= sB "new") nil)
3236 ((string-prefix-p "avail" sA)
3237 (if (string-prefix-p "avail" sB)
3238 (package-menu--name-predicate A B)
3240 ((string-prefix-p "avail" sB) nil)
3241 ((string= sA "installed") t)
3242 ((string= sB "installed") nil)
3243 ((string= sA "dependency") t)
3244 ((string= sB "dependency") nil)
3245 ((string= sA "unsigned") t)
3246 ((string= sB "unsigned") nil)
3247 ((string= sA "held") t)
3248 ((string= sB "held") nil)
3249 ((string= sA "external") t)
3250 ((string= sB "external") nil)
3251 ((string= sA "built-in") t)
3252 ((string= sB "built-in") nil)
3253 ((string= sA "obsolete") t)
3254 ((string= sB "obsolete") nil)
3255 ((string= sA "incompat") t)
3256 ((string= sB "incompat") nil)
3257 (t (string< sA sB)))))
3259 (defun package-menu--description-predicate (A B)
3260 (let ((dA (aref (cadr A) 3))
3261 (dB (aref (cadr B) 3)))
3263 (package-menu--name-predicate A B)
3266 (defun package-menu--name-predicate (A B)
3267 (string< (symbol-name (package-desc-name (car A)))
3268 (symbol-name (package-desc-name (car B)))))
3270 (defun package-menu--archive-predicate (A B)
3271 (string< (or (package-desc-archive (car A)) "")
3272 (or (package-desc-archive (car B)) "")))
3274 (defun package-menu--populate-new-package-list ()
3275 "Decide which packages are new in `package-archives-contents'.
3276 Store this list in `package-menu--new-package-list'."
3277 ;; Find which packages are new.
3278 (when package-menu--old-archive-contents
3279 (dolist (elt package-archive-contents)
3280 (unless (assq (car elt) package-menu--old-archive-contents)
3281 (push (car elt) package-menu--new-package-list)))
3282 (setq package-menu--old-archive-contents nil)))
3284 (defun package-menu--find-and-notify-upgrades ()
3285 "Notify the user of upgradable packages."
3286 (when-let ((upgrades (package-menu--find-upgrades)))
3287 (message "%d package%s can be upgraded; type `%s' to mark %s for upgrading."
3289 (if (= (length upgrades) 1) "" "s")
3290 (substitute-command-keys "\\[package-menu-mark-upgrades]")
3291 (if (= (length upgrades) 1) "it" "them"))))
3293 (defun package-menu--post-refresh ()
3294 "If there's a *Packages* buffer, revert it and check for new packages and upgrades.
3295 Do nothing if there's no *Packages* buffer.
3297 This function is called after `package-refresh-contents' and it
3298 is added to `post-command-hook' by any function which alters the
3299 package database (`package-install' and `package-delete'). When
3300 run, it removes itself from `post-command-hook'."
3301 (remove-hook 'post-command-hook #'package-menu--post-refresh)
3302 (let ((buf (get-buffer "*Packages*")))
3303 (when (buffer-live-p buf)
3304 (with-current-buffer buf
3305 (package-menu--populate-new-package-list)
3306 (run-hooks 'tabulated-list-revert-hook)
3307 (tabulated-list-print 'remember 'update)))))
3309 (defun package-menu--mark-or-notify-upgrades ()
3310 "If there's a *Packages* buffer, check for upgrades and possibly mark them.
3311 Do nothing if there's no *Packages* buffer. If there are
3312 upgrades, mark them if `package-menu--mark-upgrades-pending' is
3313 non-nil, otherwise just notify the user that there are upgrades.
3314 This function is called after `package-refresh-contents'."
3315 (let ((buf (get-buffer "*Packages*")))
3316 (when (buffer-live-p buf)
3317 (with-current-buffer buf
3318 (if package-menu--mark-upgrades-pending
3319 (package-menu--mark-upgrades-1)
3320 (package-menu--find-and-notify-upgrades))))))
3323 (defun list-packages (&optional no-fetch)
3324 "Display a list of packages.
3325 This first fetches the updated list of packages before
3326 displaying, unless a prefix argument NO-FETCH is specified.
3327 The list is displayed in a buffer named `*Packages*'."
3329 (require 'finder-inf nil t)
3330 ;; Initialize the package system if necessary.
3331 (unless package--initialized
3332 (package-initialize t))
3333 ;; Integrate the package-menu with updating the archives.
3334 (add-hook 'package--post-download-archives-hook
3335 #'package-menu--post-refresh)
3336 (add-hook 'package--post-download-archives-hook
3337 #'package-menu--mark-or-notify-upgrades 'append)
3339 ;; Generate the Package Menu.
3340 (let ((buf (get-buffer-create "*Packages*")))
3341 (with-current-buffer buf
3344 ;; Fetch the remote list of packages.
3345 (unless no-fetch (package-menu-refresh))
3347 ;; If we're not async, this would be redundant.
3348 (when package-menu-async
3349 (package-menu--generate nil t)))
3350 ;; The package menu buffer has keybindings. If the user types
3351 ;; `M-x list-packages', that suggests it should become current.
3352 (switch-to-buffer buf)))
3355 (defalias 'package-list-packages 'list-packages)
3357 ;; Used in finder.el
3358 (defun package-show-package-list (&optional packages keywords)
3359 "Display PACKAGES in a *Packages* buffer.
3360 This is similar to `list-packages', but it does not fetch the
3361 updated list of packages, and it only displays packages with
3362 names in PACKAGES (which should be a list of symbols).
3364 When KEYWORDS are given, only packages with those KEYWORDS are
3367 (require 'finder-inf nil t)
3368 (let* ((buf (get-buffer-create "*Packages*"))
3369 (win (get-buffer-window buf)))
3370 (with-current-buffer buf
3372 (package-menu--generate nil packages keywords))
3375 (switch-to-buffer buf))))
3377 ;; package-menu--generate rebinds "q" on the fly, so we have to
3378 ;; hard-code the binding in the doc-string here.
3379 (defun package-menu-filter (keyword)
3380 "Filter the *Packages* buffer.
3381 Show only those items that relate to the specified KEYWORD.
3382 KEYWORD can be a string or a list of strings. If it is a list, a
3383 package will be displayed if it matches any of the keywords.
3384 Interactively, it is a list of strings separated by commas.
3386 To restore the full package list, type `q'."
3388 (list (completing-read-multiple
3389 "Keywords (comma separated): " (package-all-keywords))))
3390 (package-show-package-list t (if (stringp keyword)
3394 (defun package-list-packages-no-fetch ()
3395 "Display a list of packages.
3396 Does not fetch the updated list of packages before displaying.
3397 The list is displayed in a buffer named `*Packages*'."
3403 ;;; package.el ends here