+++ /dev/null
-;;; package.el --- Simple package system for Emacs
-
-;; Copyright (C) 2007-2013 Free Software Foundation, Inc.
-
-;; Author: Tom Tromey <tromeyNOSPAMredhat.com>
-;; Created: 10 Mar 2007
-;; Version: 1.0
-;; Keywords: tools
-;; Package-Requires: ((tabulated-list "0"))
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
-
-;;; Change Log:
-
-;; 2 Apr 2007 - now using ChangeLog file
-;; 15 Mar 2007 - updated documentation
-;; 14 Mar 2007 - Changed how obsolete packages are handled
-;; 13 Mar 2007 - Wrote package-install-from-buffer
-;; 12 Mar 2007 - Wrote package-menu mode
-
-;;; Commentary:
-
-;; The idea behind package.el is to be able to download packages and
-;; install them. Packages are versioned and have versioned
-;; dependencies. Furthermore, this supports built-in packages which
-;; may or may not be newer than user-specified packages. This makes
-;; it possible to upgrade Emacs and automatically disable packages
-;; which have moved from external to core. (Note though that we don't
-;; currently register any of these, so this feature does not actually
-;; work.)
-
-;; A package is described by its name and version. The distribution
-;; format is either a tar file or a single .el file.
-
-;; A tar file should be named "NAME-VERSION.tar". The tar file must
-;; unpack into a directory named after the package and version:
-;; "NAME-VERSION". It must contain a file named "PACKAGE-pkg.el"
-;; which consists of a call to define-package. It may also contain a
-;; "dir" file and the info files it references.
-
-;; A .el file is named "NAME-VERSION.el" in the remote archive, but is
-;; installed as simply "NAME.el" in a directory named "NAME-VERSION".
-
-;; The downloader downloads all dependent packages. By default,
-;; packages come from the official GNU sources, but others may be
-;; added by customizing the `package-archives' alist. Packages get
-;; byte-compiled at install time.
-
-;; At activation time we will set up the load-path and the info path,
-;; and we will load the package's autoloads. If a package's
-;; dependencies are not available, we will not activate that package.
-
-;; Conceptually a package has multiple state transitions:
-;;
-;; * Download. Fetching the package from ELPA.
-;; * Install. Untar the package, or write the .el file, into
-;; ~/.emacs.d/elpa/ directory.
-;; * Byte compile. Currently this phase is done during install,
-;; but we may change this.
-;; * Activate. Evaluate the autoloads for the package to make it
-;; available to the user.
-;; * Load. Actually load the package and run some code from it.
-
-;; Other external functions you may want to use:
-;;
-;; M-x list-packages
-;; Enters a mode similar to buffer-menu which lets you manage
-;; packages. You can choose packages for install (mark with "i",
-;; then "x" to execute) or deletion (not implemented yet), and you
-;; can see what packages are available. This will automatically
-;; fetch the latest list of packages from ELPA.
-;;
-;; M-x package-install-from-buffer
-;; Install a package consisting of a single .el file that appears
-;; in the current buffer. This only works for packages which
-;; define a Version header properly; package.el also supports the
-;; extension headers Package-Version (in case Version is an RCS id
-;; or similar), and Package-Requires (if the package requires other
-;; packages).
-;;
-;; M-x package-install-file
-;; Install a package from the indicated file. The package can be
-;; either a tar file or a .el file. A tar file must contain an
-;; appropriately-named "-pkg.el" file; a .el file must be properly
-;; formatted as with package-install-from-buffer.
-
-;;; Thanks:
-;;; (sorted by sort-lines):
-
-;; Jim Blandy <jimbNOSPAMred-bean.com>
-;; Karl Fogel <kfogelNOSPAMred-bean.com>
-;; Kevin Ryde <user42NOSPAMzip.com.au>
-;; Lawrence Mitchell
-;; Michael Olson <mwolsonNOSPAMmember.fsf.org>
-;; Sebastian Tennant <sebyteNOSPAMsmolny.plus.com>
-;; Stefan Monnier <monnierNOSPAMiro.umontreal.ca>
-;; Vinicius Jose Latorre <viniciusjlNOSPAMig.com.br>
-;; Phil Hagelberg <philNOSPAMhagelb.org>
-
-;;; ToDo:
-
-;; - a trust mechanism, since compiling a package can run arbitrary code.
-;; For example, download package signatures and check that they match.
-;; - putting info dirs at the start of the info path means
-;; users see a weird ordering of categories. OTOH we want to
-;; override later entries. maybe emacs needs to enforce
-;; the standard layout?
-;; - put bytecode in a separate directory tree
-;; - perhaps give users a way to recompile their bytecode
-;; or do it automatically when emacs changes
-;; - give users a way to know whether a package is installed ok
-;; - give users a way to view a package's documentation when it
-;; only appears in the .el
-;; - use/extend checkdoc so people can tell if their package will work
-;; - "installed" instead of a blank in the status column
-;; - tramp needs its files to be compiled in a certain order.
-;; how to handle this? fix tramp?
-;; - on emacs 21 we don't kill the -autoloads.el buffer. what about 22?
-;; - maybe we need separate .elc directories for various emacs versions
-;; and also emacs-vs-xemacs. That way conditional compilation can
-;; work. But would this break anything?
-;; - should store the package's keywords in archive-contents, then
-;; let the users filter the package-menu by keyword. See
-;; finder-by-keyword. (We could also let people view the
-;; Commentary, but it isn't clear how useful this is.)
-;; - William Xu suggests being able to open a package file without
-;; installing it
-;; - Interface with desktop.el so that restarting after an install
-;; works properly
-;; - Implement M-x package-upgrade, to upgrade any/all existing packages
-;; - Use hierarchical layout. PKG/etc PKG/lisp PKG/info
-;; ... except maybe lisp?
-;; - It may be nice to have a macro that expands to the package's
-;; private data dir, aka ".../etc". Or, maybe data-directory
-;; needs to be a list (though this would be less nice)
-;; a few packages want this, eg sokoban
-;; - package menu needs:
-;; ability to know which packages are built-in & thus not deletable
-;; it can sometimes print odd results, like 0.3 available but 0.4 active
-;; why is that?
-;; - Allow multiple versions on the server...?
-;; [ why bother? ]
-;; - Don't install a package which will invalidate dependencies overall
-;; - Allow something like (or (>= emacs 21.0) (>= xemacs 21.5))
-;; [ currently thinking, why bother.. KISS ]
-;; - Allow optional package dependencies
-;; then if we require 'bbdb', bbdb-specific lisp in lisp/bbdb
-;; and just don't compile to add to load path ...?
-;; - Have a list of archive URLs? [ maybe there's no point ]
-;; - David Kastrup pointed out on the xemacs list that for GPL it
-;; is friendlier to ship the source tree. We could "support" that
-;; by just having a "src" subdir in the package. This isn't ideal
-;; but it probably is not worth trying to support random source
-;; tree layouts, build schemes, etc.
-;; - Our treatment of the info path is somewhat bogus
-;; - perhaps have an "unstable" tree in ELPA as well as a stable one
-
-;;; Code:
-
-(require 'tabulated-list)
-
-(defgroup package nil
- "Manager for Emacs Lisp packages."
- :group 'applications
- :version "24.1")
-
-;;;###autoload
-(defcustom package-enable-at-startup t
- "Whether to activate installed packages when Emacs starts.
-If non-nil, packages are activated after reading the init file
-and before `after-init-hook'. Activation is not done if
-`user-init-file' is nil (e.g. Emacs was started with \"-q\").
-
-Even if the value is nil, you can type \\[package-initialize] to
-activate the package system at any time."
- :type 'boolean
- :group 'package
- :version "24.1")
-
-(defcustom package-load-list '(all)
- "List of packages for `package-initialize' to load.
-Each element in this list should be a list (NAME VERSION), or the
-symbol `all'. The symbol `all' says to load the latest installed
-versions of all packages not specified by other elements.
-
-For an element (NAME VERSION), NAME is a package name (a symbol).
-VERSION should be t, a string, or nil.
-If VERSION is t, all versions are loaded, though obsolete ones
- will be put in `package-obsolete-alist' and not activated.
-If VERSION is a string, only that version is ever loaded.
- Any other version, even if newer, is silently ignored.
- Hence, the package is \"held\" at that version.
-If VERSION is nil, the package is not loaded (it is \"disabled\")."
- :type '(repeat symbol)
- :risky t
- :group 'package
- :version "24.1")
-
-(defvar Info-directory-list)
-(declare-function info-initialize "info" ())
-(declare-function url-http-parse-response "url-http" ())
-(declare-function lm-header "lisp-mnt" (header))
-(declare-function lm-commentary "lisp-mnt" (&optional file))
-(defvar url-http-end-of-headers)
-
-(defcustom package-archives '(("gnu" . "http://elpa.gnu.org/packages/"))
- "An alist of archives from which to fetch.
-The default value points to the GNU Emacs package repository.
-
-Each element has the form (ID . LOCATION).
- ID is an archive name, as a string.
- LOCATION specifies the base location for the archive.
- If it starts with \"http:\", it is treated as a HTTP URL;
- otherwise it should be an absolute directory name.
- (Other types of URL are currently not supported.)
-
-Only add locations that you trust, since fetching and installing
-a package can run arbitrary code."
- :type '(alist :key-type (string :tag "Archive name")
- :value-type (string :tag "URL or directory name"))
- :risky t
- :group 'package
- :version "24.1")
-
-(defconst package-archive-version 1
- "Version number of the package archive understood by this file.
-Lower version numbers than this will probably be understood as well.")
-
-(defconst package-el-version "1.0"
- "Version of package.el.")
-
-;; We don't prime the cache since it tends to get out of date.
-(defvar package-archive-contents nil
- "Cache of the contents of the Emacs Lisp Package Archive.
-This is an alist mapping package names (symbols) to package
-descriptor vectors. These are like the vectors for `package-alist'
-but have extra entries: one which is 'tar for tar packages and
-'single for single-file packages, and one which is the name of
-the archive from which it came.")
-(put 'package-archive-contents 'risky-local-variable t)
-
-(defcustom package-user-dir (locate-user-emacs-file "elpa")
- "Directory containing the user's Emacs Lisp packages.
-The directory name should be absolute.
-Apart from this directory, Emacs also looks for system-wide
-packages in `package-directory-list'."
- :type 'directory
- :risky t
- :group 'package
- :version "24.1")
-
-(defcustom package-directory-list
- ;; Defaults are subdirs named "elpa" in the site-lisp dirs.
- (let (result)
- (dolist (f load-path)
- (and (stringp f)
- (equal (file-name-nondirectory f) "site-lisp")
- (push (expand-file-name "elpa" f) result)))
- (nreverse result))
- "List of additional directories containing Emacs Lisp packages.
-Each directory name should be absolute.
-
-These directories contain packages intended for system-wide; in
-contrast, `package-user-dir' contains packages for personal use."
- :type '(repeat directory)
- :risky t
- :group 'package
- :version "24.1")
-
-;; The value is precomputed in finder-inf.el, but don't load that
-;; until it's needed (i.e. when `package-initialize' is called).
-(defvar package--builtins nil
- "Alist of built-in packages.
-The actual value is initialized by loading the library
-`finder-inf'; this is not done until it is needed, e.g. by the
-function `package-built-in-p'.
-
-Each element has the form (PKG . DESC), where PKG is a package
-name (a symbol) and DESC is a vector that describes the package.
-The vector DESC has the form [VERSION-LIST REQS DOCSTRING].
- VERSION-LIST is a version list.
- REQS is a list of packages required by the package, each
- requirement having the form (NAME VL), where NAME is a string
- and VL is a version list.
- DOCSTRING is a brief description of the package.")
-(put 'package--builtins 'risky-local-variable t)
-
-(defvar package-alist nil
- "Alist of all packages available for activation.
-Each element has the form (PKG . DESC), where PKG is a package
-name (a symbol) and DESC is a vector that describes the package.
-
-The vector DESC has the form [VERSION-LIST REQS DOCSTRING].
- VERSION-LIST is a version list.
- REQS is a list of packages required by the package, each
- requirement having the form (NAME VL) where NAME is a string
- and VL is a version list.
- DOCSTRING is a brief description of the package.
-
-This variable is set automatically by `package-load-descriptor',
-called via `package-initialize'. To change which packages are
-loaded and/or activated, customize `package-load-list'.")
-(put 'package-alist 'risky-local-variable t)
-
-(defvar package-activated-list nil
- "List of the names of currently activated packages.")
-(put 'package-activated-list 'risky-local-variable t)
-
-(defvar package-obsolete-alist nil
- "Representation of obsolete packages.
-Like `package-alist', but maps package name to a second alist.
-The inner alist is keyed by version.")
-(put 'package-obsolete-alist 'risky-local-variable t)
-
-(defun package-version-join (vlist)
- "Return the version string corresponding to the list VLIST.
-This is, approximately, the inverse of `version-to-list'.
-\(Actually, it returns only one of the possible inverses, since
-`version-to-list' is a many-to-one operation.)"
- (if (null vlist)
- ""
- (let ((str-list (list "." (int-to-string (car vlist)))))
- (dolist (num (cdr vlist))
- (cond
- ((>= num 0)
- (push (int-to-string num) str-list)
- (push "." str-list))
- ((< num -3)
- (error "Invalid version list `%s'" vlist))
- (t
- ;; pre, or beta, or alpha
- (cond ((equal "." (car str-list))
- (pop str-list))
- ((not (string-match "[0-9]+" (car str-list)))
- (error "Invalid version list `%s'" vlist)))
- (push (cond ((= num -1) "pre")
- ((= num -2) "beta")
- ((= num -3) "alpha"))
- str-list))))
- (if (equal "." (car str-list))
- (pop str-list))
- (apply 'concat (nreverse str-list)))))
-
-(defun package-strip-version (dirname)
- "Strip the version from a combined package name and version.
-E.g., if given \"quux-23.0\", will return \"quux\""
- (if (string-match (concat "\\`" package-subdirectory-regexp "\\'") dirname)
- (match-string 1 dirname)))
-
-(defun package-load-descriptor (dir package)
- "Load the description file in directory DIR for package PACKAGE.
-Here, PACKAGE is a string of the form NAME-VERSION, where NAME is
-the package name and VERSION is its version."
- (let* ((pkg-dir (expand-file-name package dir))
- (pkg-file (expand-file-name
- (concat (package-strip-version package) "-pkg")
- pkg-dir)))
- (when (and (file-directory-p pkg-dir)
- (file-exists-p (concat pkg-file ".el")))
- (load pkg-file nil t))))
-
-(defun package-load-all-descriptors ()
- "Load descriptors for installed Emacs Lisp packages.
-This looks for package subdirectories in `package-user-dir' and
-`package-directory-list'. The variable `package-load-list'
-controls which package subdirectories may be loaded.
-
-In each valid package subdirectory, this function loads the
-description file containing a call to `define-package', which
-updates `package-alist' and `package-obsolete-alist'."
- (let ((regexp (concat "\\`" package-subdirectory-regexp "\\'")))
- (dolist (dir (cons package-user-dir package-directory-list))
- (when (file-directory-p dir)
- (dolist (subdir (directory-files dir))
- (when (string-match regexp subdir)
- (package-maybe-load-descriptor (match-string 1 subdir)
- (match-string 2 subdir)
- dir)))))))
-
-(defun package-maybe-load-descriptor (name version dir)
- "Maybe load a specific package from directory DIR.
-NAME and VERSION are the package's name and version strings.
-This function checks `package-load-list', before actually loading
-the package by calling `package-load-descriptor'."
- (let ((force (assq (intern name) package-load-list))
- (subdir (concat name "-" version)))
- (and (file-directory-p (expand-file-name subdir dir))
- ;; Check `package-load-list':
- (cond ((null force)
- (memq 'all package-load-list))
- ((null (setq force (cadr force)))
- nil) ; disabled
- ((eq force t)
- t)
- ((stringp force) ; held
- (version-list-= (version-to-list version)
- (version-to-list force)))
- (t
- (error "Invalid element in `package-load-list'")))
- ;; Actually load the descriptor:
- (package-load-descriptor dir subdir))))
-
-(defsubst package-desc-vers (desc)
- "Extract version from a package description vector."
- (aref desc 0))
-
-(defsubst package-desc-reqs (desc)
- "Extract requirements from a package description vector."
- (aref desc 1))
-
-(defsubst package-desc-doc (desc)
- "Extract doc string from a package description vector."
- (aref desc 2))
-
-(defsubst package-desc-kind (desc)
- "Extract the kind of download from an archive package description vector."
- (aref desc 3))
-
-(defun package--dir (name version)
- "Return the directory where a package is installed, or nil if none.
-NAME and VERSION are both strings."
- (let* ((subdir (concat name "-" version))
- (dir-list (cons package-user-dir package-directory-list))
- pkg-dir)
- (while dir-list
- (let ((subdir-full (expand-file-name subdir (car dir-list))))
- (if (file-directory-p subdir-full)
- (setq pkg-dir subdir-full
- dir-list nil)
- (setq dir-list (cdr dir-list)))))
- pkg-dir))
-
-(defun package-activate-1 (package pkg-vec)
- (let* ((name (symbol-name package))
- (version-str (package-version-join (package-desc-vers pkg-vec)))
- (pkg-dir (package--dir name version-str)))
- (unless pkg-dir
- (error "Internal error: unable to find directory for `%s-%s'"
- name version-str))
- ;; Add info node.
- (when (file-exists-p (expand-file-name "dir" pkg-dir))
- ;; FIXME: not the friendliest, but simple.
- (require 'info)
- (info-initialize)
- (push pkg-dir Info-directory-list))
- ;; Add to load path, add autoloads, and activate the package.
- (push pkg-dir load-path)
- (load (expand-file-name (concat name "-autoloads") pkg-dir) nil t)
- (push package package-activated-list)
- ;; Don't return nil.
- t))
-
-(defun package-built-in-p (package &optional min-version)
- "Return true if PACKAGE is built-in to Emacs.
-Optional arg MIN-VERSION, if non-nil, should be a version list
-specifying the minimum acceptable version."
- (require 'finder-inf nil t) ; For `package--builtins'.
- (if (eq package 'emacs)
- (version-list-<= min-version (version-to-list emacs-version))
- (let ((elt (assq package package--builtins)))
- (and elt (version-list-<= min-version
- (package-desc-vers (cdr elt)))))))
-
-;; This function goes ahead and activates a newer version of a package
-;; if an older one was already activated. This is not ideal; we'd at
-;; least need to check to see if the package has actually been loaded,
-;; and not merely activated.
-(defun package-activate (package min-version)
- "Activate package PACKAGE, of version MIN-VERSION or newer.
-MIN-VERSION should be a version list.
-If PACKAGE has any dependencies, recursively activate them.
-Return nil if the package could not be activated."
- (let ((pkg-vec (cdr (assq package package-alist)))
- available-version found)
- ;; Check if PACKAGE is available in `package-alist'.
- (when pkg-vec
- (setq available-version (package-desc-vers pkg-vec)
- found (version-list-<= min-version available-version)))
- (cond
- ;; If no such package is found, maybe it's built-in.
- ((null found)
- (package-built-in-p package min-version))
- ;; If the package is already activated, just return t.
- ((memq package package-activated-list)
- t)
- ;; Otherwise, proceed with activation.
- (t
- (let ((fail (catch 'dep-failure
- ;; Activate its dependencies recursively.
- (dolist (req (package-desc-reqs pkg-vec))
- (unless (package-activate (car req) (cadr req))
- (throw 'dep-failure req))))))
- (if fail
- (warn "Unable to activate package `%s'.
-Required package `%s-%s' is unavailable"
- package (car fail) (package-version-join (cadr fail)))
- ;; If all goes well, activate the package itself.
- (package-activate-1 package pkg-vec)))))))
-
-(defun package-mark-obsolete (package pkg-vec)
- "Put package on the obsolete list, if not already there."
- (let ((elt (assq package package-obsolete-alist)))
- (if elt
- ;; If this obsolete version does not exist in the list, update
- ;; it the list.
- (unless (assoc (package-desc-vers pkg-vec) (cdr elt))
- (setcdr elt (cons (cons (package-desc-vers pkg-vec) pkg-vec)
- (cdr elt))))
- ;; Make a new association.
- (push (cons package (list (cons (package-desc-vers pkg-vec)
- pkg-vec)))
- package-obsolete-alist))))
-
-(defun define-package (name-string version-string
- &optional docstring requirements
- &rest _extra-properties)
- "Define a new package.
-NAME-STRING is the name of the package, as a string.
-VERSION-STRING is the version of the package, as a string.
-DOCSTRING is a short description of the package, a string.
-REQUIREMENTS is a list of dependencies on other packages.
- Each requirement is of the form (OTHER-PACKAGE OTHER-VERSION),
- where OTHER-VERSION is a string.
-
-EXTRA-PROPERTIES is currently unused."
- (let* ((name (intern name-string))
- (version (version-to-list version-string))
- (new-pkg-desc
- (cons name
- (vector version
- (mapcar
- (lambda (elt)
- (list (car elt)
- (version-to-list (car (cdr elt)))))
- requirements)
- docstring)))
- (old-pkg (assq name package-alist)))
- (cond
- ;; If there's no old package, just add this to `package-alist'.
- ((null old-pkg)
- (push new-pkg-desc package-alist))
- ((version-list-< (package-desc-vers (cdr old-pkg)) version)
- ;; Remove the old package and declare it obsolete.
- (package-mark-obsolete name (cdr old-pkg))
- (setq package-alist (cons new-pkg-desc
- (delq old-pkg package-alist))))
- ;; You can have two packages with the same version, e.g. one in
- ;; the system package directory and one in your private
- ;; directory. We just let the first one win.
- ((not (version-list-= (package-desc-vers (cdr old-pkg)) version))
- ;; The package is born obsolete.
- (package-mark-obsolete name (cdr new-pkg-desc))))))
-
-;; From Emacs 22.
-(defun package-autoload-ensure-default-file (file)
- "Make sure that the autoload file FILE exists and if not create it."
- (unless (file-exists-p file)
- (write-region
- (concat ";;; " (file-name-nondirectory file)
- " --- automatically extracted autoloads\n"
- ";;\n"
- ";;; Code:\n\n"
- "\f\n;; Local Variables:\n"
- ";; version-control: never\n"
- ";; no-byte-compile: t\n"
- ";; no-update-autoloads: t\n"
- ";; End:\n"
- ";;; " (file-name-nondirectory file)
- " ends here\n")
- nil file))
- file)
-
-(defun package-generate-autoloads (name pkg-dir)
- (require 'autoload) ;Load before we let-bind generated-autoload-file!
- (let* ((auto-name (concat name "-autoloads.el"))
- ;;(ignore-name (concat name "-pkg.el"))
- (generated-autoload-file (expand-file-name auto-name pkg-dir))
- (version-control 'never))
- (unless (fboundp 'autoload-ensure-default-file)
- (package-autoload-ensure-default-file generated-autoload-file))
- (update-directory-autoloads pkg-dir)
- (let ((buf (find-buffer-visiting generated-autoload-file)))
- (when buf (kill-buffer buf)))))
-
-(defvar tar-parse-info)
-(declare-function tar-untar-buffer "tar-mode" ())
-(declare-function tar-header-name "tar-mode" (tar-header))
-(declare-function tar-header-link-type "tar-mode" (tar-header))
-
-(defun package-untar-buffer (dir)
- "Untar the current buffer.
-This uses `tar-untar-buffer' from Tar mode. All files should
-untar into a directory named DIR; otherwise, signal an error."
- (require 'tar-mode)
- (tar-mode)
- ;; Make sure everything extracts into DIR.
- (let ((regexp (concat "\\`" (regexp-quote (expand-file-name dir)) "/"))
- (case-fold-search (memq system-type '(windows-nt ms-dos cygwin))))
- (dolist (tar-data tar-parse-info)
- (let ((name (expand-file-name (tar-header-name tar-data))))
- (or (string-match regexp name)
- ;; Tarballs created by some utilities don't list
- ;; directories with a trailing slash (Bug#13136).
- (and (string-equal dir name)
- (eq (tar-header-link-type tar-data) 5))
- (error "Package does not untar cleanly into directory %s/" dir)))))
- (tar-untar-buffer))
-
-(defun package-unpack (package version)
- (let* ((name (symbol-name package))
- (dirname (concat name "-" version))
- (pkg-dir (expand-file-name dirname package-user-dir)))
- (make-directory package-user-dir t)
- ;; FIXME: should we delete PKG-DIR if it exists?
- (let* ((default-directory (file-name-as-directory package-user-dir)))
- (package-untar-buffer dirname)
- (package--make-autoloads-and-compile name pkg-dir))))
-
-(defun package--make-autoloads-and-compile (name pkg-dir)
- "Generate autoloads and do byte-compilation for package named NAME.
-PKG-DIR is the name of the package directory."
- (package-generate-autoloads name pkg-dir)
- (let ((load-path (cons pkg-dir load-path)))
- ;; We must load the autoloads file before byte compiling, in
- ;; case there are magic cookies to set up non-trivial paths.
- (load (expand-file-name (concat name "-autoloads") pkg-dir) nil t)
- (byte-recompile-directory pkg-dir 0 t)))
-
-(defun package--write-file-no-coding (file-name)
- (let ((buffer-file-coding-system 'no-conversion))
- (write-region (point-min) (point-max) file-name)))
-
-(defun package-unpack-single (file-name version desc requires)
- "Install the contents of the current buffer as a package."
- ;; Special case "package".
- (if (string= file-name "package")
- (package--write-file-no-coding
- (expand-file-name (concat file-name ".el") package-user-dir))
- (let* ((pkg-dir (expand-file-name (concat file-name "-"
- (package-version-join
- (version-to-list version)))
- package-user-dir))
- (el-file (expand-file-name (concat file-name ".el") pkg-dir))
- (pkg-file (expand-file-name (concat file-name "-pkg.el") pkg-dir)))
- (make-directory pkg-dir t)
- (package--write-file-no-coding el-file)
- (let ((print-level nil)
- (print-length nil))
- (write-region
- (concat
- (prin1-to-string
- (list 'define-package
- file-name
- version
- desc
- (list 'quote
- ;; Turn version lists into string form.
- (mapcar
- (lambda (elt)
- (list (car elt)
- (package-version-join (cadr elt))))
- requires))))
- "\n")
- nil
- pkg-file
- nil nil nil 'excl))
- (package--make-autoloads-and-compile file-name pkg-dir))))
-
-(defmacro package--with-work-buffer (location file &rest body)
- "Run BODY in a buffer containing the contents of FILE at LOCATION.
-LOCATION is the base location of a package archive, and should be
-one of the URLs (or file names) specified in `package-archives'.
-FILE is the name of a file relative to that base location.
-
-This macro retrieves FILE from LOCATION into a temporary buffer,
-and evaluates BODY while that buffer is current. This work
-buffer is killed afterwards. Return the last value in BODY."
- `(let* ((http (string-match "\\`https?:" ,location))
- (buffer
- (if http
- (url-retrieve-synchronously (concat ,location ,file))
- (generate-new-buffer "*package work buffer*"))))
- (prog1
- (with-current-buffer buffer
- (if http
- (progn (package-handle-response)
- (re-search-forward "^$" nil 'move)
- (forward-char)
- (delete-region (point-min) (point)))
- (unless (file-name-absolute-p ,location)
- (error "Archive location %s is not an absolute file name"
- ,location))
- (insert-file-contents (expand-file-name ,file ,location)))
- ,@body)
- (kill-buffer buffer))))
-
-(defun package-handle-response ()
- "Handle the response from a `url-retrieve-synchronously' call.
-Parse the HTTP response and throw if an error occurred.
-The url package seems to require extra processing for this.
-This should be called in a `save-excursion', in the download buffer.
-It will move point to somewhere in the headers."
- ;; We assume HTTP here.
- (require 'url-http)
- (let ((response (url-http-parse-response)))
- (when (or (< response 200) (>= response 300))
- (error "Error during download request:%s"
- (buffer-substring-no-properties (point) (progn
- (end-of-line)
- (point)))))))
-
-(defun package-download-single (name version desc requires)
- "Download and install a single-file package."
- (let ((location (package-archive-base name))
- (file (concat (symbol-name name) "-" version ".el")))
- (package--with-work-buffer location file
- (package-unpack-single (symbol-name name) version desc requires))))
-
-(defun package-download-tar (name version)
- "Download and install a tar package."
- (let ((location (package-archive-base name))
- (file (concat (symbol-name name) "-" version ".tar")))
- (package--with-work-buffer location file
- (package-unpack name version))))
-
-(defvar package--initialized nil)
-
-(defun package-installed-p (package &optional min-version)
- "Return true if PACKAGE, of MIN-VERSION or newer, is installed.
-MIN-VERSION should be a version list."
- (unless package--initialized (error "package.el is not yet initialized!"))
- (let ((pkg-desc (assq package package-alist)))
- (if pkg-desc
- (version-list-<= min-version
- (package-desc-vers (cdr pkg-desc)))
- ;; Also check built-in packages.
- (package-built-in-p package min-version))))
-
-(defun package-compute-transaction (package-list requirements)
- "Return a list of packages to be installed, including PACKAGE-LIST.
-PACKAGE-LIST should be a list of package names (symbols).
-
-REQUIREMENTS should be a list of additional requirements; each
-element in this list should have the form (PACKAGE VERSION-LIST),
-where PACKAGE is a package name and VERSION-LIST is the required
-version of that package.
-
-This function recursively computes the requirements of the
-packages in REQUIREMENTS, and returns a list of all the packages
-that must be installed. Packages that are already installed are
-not included in this list."
- (dolist (elt requirements)
- (let* ((next-pkg (car elt))
- (next-version (cadr elt)))
- (unless (package-installed-p next-pkg next-version)
- ;; A package is required, but not installed. It might also be
- ;; blocked via `package-load-list'.
- (let ((pkg-desc (assq next-pkg package-archive-contents))
- hold)
- (when (setq hold (assq next-pkg package-load-list))
- (setq hold (cadr hold))
- (cond ((eq hold t))
- ((eq hold nil)
- (error "Required package '%s' is disabled"
- (symbol-name next-pkg)))
- ((null (stringp hold))
- (error "Invalid element in `package-load-list'"))
- ((version-list-< (version-to-list hold) next-version)
- (error "Package `%s' held at version %s, \
-but version %s required"
- (symbol-name next-pkg) hold
- (package-version-join next-version)))))
- (unless pkg-desc
- (error "Package `%s-%s' is unavailable"
- (symbol-name next-pkg)
- (package-version-join next-version)))
- (unless (version-list-<= next-version
- (package-desc-vers (cdr pkg-desc)))
- (error
- "Need package `%s-%s', but only %s is available"
- (symbol-name next-pkg) (package-version-join next-version)
- (package-version-join (package-desc-vers (cdr pkg-desc)))))
- ;; Only add to the transaction if we don't already have it.
- (unless (memq next-pkg package-list)
- (push next-pkg package-list))
- (setq package-list
- (package-compute-transaction package-list
- (package-desc-reqs
- (cdr pkg-desc))))))))
- package-list)
-
-(defun package-read-from-string (str)
- "Read a Lisp expression from STR.
-Signal an error if the entire string was not used."
- (let* ((read-data (read-from-string str))
- (more-left
- (condition-case nil
- ;; The call to `ignore' suppresses a compiler warning.
- (progn (ignore (read-from-string
- (substring str (cdr read-data))))
- t)
- (end-of-file nil))))
- (if more-left
- (error "Can't read whole string")
- (car read-data))))
-
-(defun package--read-archive-file (file)
- "Re-read archive file FILE, if it exists.
-Will return the data from the file, or nil if the file does not exist.
-Will throw an error if the archive version is too new."
- (let ((filename (expand-file-name file package-user-dir)))
- (when (file-exists-p filename)
- (with-temp-buffer
- (insert-file-contents-literally filename)
- (let ((contents (read (current-buffer))))
- (if (> (car contents) package-archive-version)
- (error "Package archive version %d is higher than %d"
- (car contents) package-archive-version))
- (cdr contents))))))
-
-(defun package-read-all-archive-contents ()
- "Re-read `archive-contents', if it exists.
-If successful, set `package-archive-contents'."
- (setq package-archive-contents nil)
- (dolist (archive package-archives)
- (package-read-archive-contents (car archive))))
-
-(defun package-read-archive-contents (archive)
- "Re-read archive contents for ARCHIVE.
-If successful, set the variable `package-archive-contents'.
-If the archive version is too new, signal an error."
- ;; Version 1 of 'archive-contents' is identical to our internal
- ;; representation.
- (let* ((dir (concat "archives/" archive))
- (contents-file (concat dir "/archive-contents"))
- contents)
- (when (setq contents (package--read-archive-file contents-file))
- (dolist (package contents)
- (package--add-to-archive-contents package archive)))))
-
-(defun package--add-to-archive-contents (package archive)
- "Add the PACKAGE from the given ARCHIVE if necessary.
-Also, add the originating archive to the end of the package vector."
- (let* ((name (car package))
- (version (package-desc-vers (cdr package)))
- (entry (cons name
- (vconcat (cdr package) (vector archive))))
- (existing-package (assq name package-archive-contents)))
- (cond ((not existing-package)
- (add-to-list 'package-archive-contents entry))
- ((version-list-< (package-desc-vers (cdr existing-package))
- version)
- ;; Replace the entry with this one.
- (setq package-archive-contents
- (cons entry
- (delq existing-package
- package-archive-contents)))))))
-
-(defun package-download-transaction (package-list)
- "Download and install all the packages in PACKAGE-LIST.
-PACKAGE-LIST should be a list of package names (symbols).
-This function assumes that all package requirements in
-PACKAGE-LIST are satisfied, i.e. that PACKAGE-LIST is computed
-using `package-compute-transaction'."
- (dolist (elt package-list)
- (let* ((desc (cdr (assq elt package-archive-contents)))
- ;; As an exception, if package is "held" in
- ;; `package-load-list', download the held version.
- (hold (cadr (assq elt package-load-list)))
- (v-string (or (and (stringp hold) hold)
- (package-version-join (package-desc-vers desc))))
- (kind (package-desc-kind desc)))
- (cond
- ((eq kind 'tar)
- (package-download-tar elt v-string))
- ((eq kind 'single)
- (package-download-single elt v-string
- (package-desc-doc desc)
- (package-desc-reqs desc)))
- (t
- (error "Unknown package kind: %s" (symbol-name kind))))
- ;; If package A depends on package B, then A may `require' B
- ;; during byte compilation. So we need to activate B before
- ;; unpacking A.
- (package-maybe-load-descriptor (symbol-name elt) v-string
- package-user-dir)
- (package-activate elt (version-to-list v-string)))))
-
-;;;###autoload
-(defun package-install (name)
- "Install the package named NAME.
-NAME should be the name of one of the available packages in an
-archive in `package-archives'. Interactively, prompt for NAME."
- (interactive
- (progn
- ;; Initialize the package system to get the list of package
- ;; symbols for completion.
- (unless package--initialized
- (package-initialize t))
- (unless package-archive-contents
- (package-refresh-contents))
- (list (intern (completing-read
- "Install package: "
- (mapcar (lambda (elt)
- (cons (symbol-name (car elt))
- nil))
- package-archive-contents)
- nil t)))))
- (let ((pkg-desc (assq name package-archive-contents)))
- (unless pkg-desc
- (error "Package `%s' is not available for installation"
- (symbol-name name)))
- (package-download-transaction
- (package-compute-transaction (list name)
- (package-desc-reqs (cdr pkg-desc))))))
-
-(defun package-strip-rcs-id (str)
- "Strip RCS version ID from the version string STR.
-If the result looks like a dotted numeric version, return it.
-Otherwise return nil."
- (when str
- (when (string-match "\\`[ \t]*[$]Revision:[ \t]+" str)
- (setq str (substring str (match-end 0))))
- (condition-case nil
- (if (version-to-list str)
- str)
- (error nil))))
-
-(defun package-buffer-info ()
- "Return a vector describing the package in the current buffer.
-The vector has the form
-
- [FILENAME REQUIRES DESCRIPTION VERSION COMMENTARY]
-
-FILENAME is the file name, a string, sans the \".el\" extension.
-REQUIRES is a list of requirements, each requirement having the
- form (NAME VER); NAME is a string and VER is a version list.
-DESCRIPTION is the package description, a string.
-VERSION is the version, a string.
-COMMENTARY is the commentary section, a string, or nil if none.
-
-If the buffer does not contain a conforming package, signal an
-error. If there is a package, narrow the buffer to the file's
-boundaries."
- (goto-char (point-min))
- (unless (re-search-forward "^;;; \\([^ ]*\\)\\.el ---[ \t]*\\(.*?\\)[ \t]*\\(-\\*-.*-\\*-[ \t]*\\)?$" nil t)
- (error "Packages lacks a file header"))
- (let ((file-name (match-string-no-properties 1))
- (desc (match-string-no-properties 2))
- (start (line-beginning-position)))
- (unless (search-forward (concat ";;; " file-name ".el ends here"))
- (error "Package lacks a terminating comment"))
- ;; Try to include a trailing newline.
- (forward-line)
- (narrow-to-region start (point))
- (require 'lisp-mnt)
- ;; Use some headers we've invented to drive the process.
- (let* ((requires-str (lm-header "package-requires"))
- (requires (if requires-str
- (package-read-from-string requires-str)))
- ;; Prefer Package-Version; if defined, the package author
- ;; probably wants us to use it. Otherwise try Version.
- (pkg-version
- (or (package-strip-rcs-id (lm-header "package-version"))
- (package-strip-rcs-id (lm-header "version"))))
- (commentary (lm-commentary)))
- (unless pkg-version
- (error
- "Package lacks a \"Version\" or \"Package-Version\" header"))
- ;; Turn string version numbers into list form.
- (setq requires
- (mapcar
- (lambda (elt)
- (list (car elt)
- (version-to-list (car (cdr elt)))))
- requires))
- (vector file-name requires desc pkg-version commentary))))
-
-(defun package-tar-file-info (file)
- "Find package information for a tar file.
-FILE is the name of the tar file to examine.
-The return result is a vector like `package-buffer-info'."
- (let ((default-directory (file-name-directory file))
- (file (file-name-nondirectory file)))
- (unless (string-match (concat "\\`" package-subdirectory-regexp "\\.tar\\'")
- file)
- (error "Invalid package name `%s'" file))
- (let* ((pkg-name (match-string-no-properties 1 file))
- (pkg-version (match-string-no-properties 2 file))
- ;; Extract the package descriptor.
- (pkg-def-contents (shell-command-to-string
- ;; Requires GNU tar.
- (concat "tar -xOf " file " "
-
- pkg-name "-" pkg-version "/"
- pkg-name "-pkg.el")))
- (pkg-def-parsed (package-read-from-string pkg-def-contents)))
- (unless (eq (car pkg-def-parsed) 'define-package)
- (error "No `define-package' sexp is present in `%s-pkg.el'" pkg-name))
- (let ((name-str (nth 1 pkg-def-parsed))
- (version-string (nth 2 pkg-def-parsed))
- (docstring (nth 3 pkg-def-parsed))
- (requires (nth 4 pkg-def-parsed))
- (readme (shell-command-to-string
- ;; Requires GNU tar.
- (concat "tar -xOf " file " "
- pkg-name "-" pkg-version "/README"))))
- (unless (equal pkg-version version-string)
- (error "Package has inconsistent versions"))
- (unless (equal pkg-name name-str)
- (error "Package has inconsistent names"))
- ;; Kind of a hack.
- (if (string-match ": Not found in archive" readme)
- (setq readme nil))
- ;; Turn string version numbers into list form.
- (if (eq (car requires) 'quote)
- (setq requires (car (cdr requires))))
- (setq requires
- (mapcar (lambda (elt)
- (list (car elt)
- (version-to-list (cadr elt))))
- requires))
- (vector pkg-name requires docstring version-string readme)))))
-
-;;;###autoload
-(defun package-install-from-buffer (pkg-info type)
- "Install a package from the current buffer.
-When called interactively, the current buffer is assumed to be a
-single .el file that follows the packaging guidelines; see info
-node `(elisp)Packaging'.
-
-When called from Lisp, PKG-INFO is a vector describing the
-information, of the type returned by `package-buffer-info'; and
-TYPE is the package type (either `single' or `tar')."
- (interactive (list (package-buffer-info) 'single))
- (save-excursion
- (save-restriction
- (let* ((file-name (aref pkg-info 0))
- (requires (aref pkg-info 1))
- (desc (if (string= (aref pkg-info 2) "")
- "No description available."
- (aref pkg-info 2)))
- (pkg-version (aref pkg-info 3)))
- ;; Download and install the dependencies.
- (let ((transaction (package-compute-transaction nil requires)))
- (package-download-transaction transaction))
- ;; Install the package itself.
- (cond
- ((eq type 'single)
- (package-unpack-single file-name pkg-version desc requires))
- ((eq type 'tar)
- (package-unpack (intern file-name) pkg-version))
- (t
- (error "Unknown type: %s" (symbol-name type))))
- ;; Try to activate it.
- (package-initialize)))))
-
-;;;###autoload
-(defun package-install-file (file)
- "Install a package from a file.
-The file can either be a tar file or an Emacs Lisp file."
- (interactive "fPackage file name: ")
- (with-temp-buffer
- (insert-file-contents-literally file)
- (cond
- ((string-match "\\.el$" file)
- (package-install-from-buffer (package-buffer-info) 'single))
- ((string-match "\\.tar$" file)
- (package-install-from-buffer (package-tar-file-info file) 'tar))
- (t (error "Unrecognized extension `%s'" (file-name-extension file))))))
-
-(defun package-delete (name version)
- (let ((dir (package--dir name version)))
- (if (string-equal (file-name-directory dir)
- (file-name-as-directory
- (expand-file-name package-user-dir)))
- (progn
- (delete-directory dir t t)
- (message "Package `%s-%s' deleted." name version))
- ;; Don't delete "system" packages
- (error "Package `%s-%s' is a system package, not deleting"
- name version))))
-
-(defun package-archive-base (name)
- "Return the archive containing the package NAME."
- (let ((desc (cdr (assq (intern-soft name) package-archive-contents))))
- (cdr (assoc (aref desc (- (length desc) 1)) package-archives))))
-
-(defun package--download-one-archive (archive file)
- "Retrieve an archive file FILE from ARCHIVE, and cache it.
-ARCHIVE should be a cons cell of the form (NAME . LOCATION),
-similar to an entry in `package-alist'. Save the cached copy to
-\"archives/NAME/archive-contents\" in `package-user-dir'."
- (let* ((dir (expand-file-name "archives" package-user-dir))
- (dir (expand-file-name (car archive) dir)))
- (package--with-work-buffer (cdr archive) file
- ;; Read the retrieved buffer to make sure it is valid (e.g. it
- ;; may fetch a URL redirect page).
- (when (listp (read buffer))
- (make-directory dir t)
- (setq buffer-file-name (expand-file-name file dir))
- (let ((version-control 'never))
- (save-buffer))))))
-
-;;;###autoload
-(defun package-refresh-contents ()
- "Download the ELPA archive description if needed.
-This informs Emacs about the latest versions of all packages, and
-makes them available for download."
- (interactive)
- (unless (file-exists-p package-user-dir)
- (make-directory package-user-dir t))
- (dolist (archive package-archives)
- (condition-case-unless-debug nil
- (package--download-one-archive archive "archive-contents")
- (error (message "Failed to download `%s' archive."
- (car archive)))))
- (package-read-all-archive-contents))
-
-;;;###autoload
-(defun package-initialize (&optional no-activate)
- "Load Emacs Lisp packages, and activate them.
-The variable `package-load-list' controls which packages to load.
-If optional arg NO-ACTIVATE is non-nil, don't activate packages."
- (interactive)
- (setq package-alist nil
- package-obsolete-alist nil)
- (package-load-all-descriptors)
- (package-read-all-archive-contents)
- (unless no-activate
- (dolist (elt package-alist)
- (package-activate (car elt) (package-desc-vers (cdr elt)))))
- (setq package--initialized t))
-
-\f
-;;;; Package description buffer.
-
-;;;###autoload
-(defun describe-package (package)
- "Display the full documentation of PACKAGE (a symbol)."
- (interactive
- (let* ((guess (function-called-at-point))
- packages val)
- (require 'finder-inf nil t)
- ;; Load the package list if necessary (but don't activate them).
- (unless package--initialized
- (package-initialize t))
- (setq packages (append (mapcar 'car package-alist)
- (mapcar 'car package-archive-contents)
- (mapcar 'car package--builtins)))
- (unless (memq guess packages)
- (setq guess nil))
- (setq packages (mapcar 'symbol-name packages))
- (setq val
- (completing-read (if guess
- (format "Describe package (default %s): "
- guess)
- "Describe package: ")
- packages nil t nil nil guess))
- (list (if (equal val "") guess (intern val)))))
- (if (or (null package) (not (symbolp package)))
- (message "No package specified")
- (help-setup-xref (list #'describe-package package)
- (called-interactively-p 'interactive))
- (with-help-window (help-buffer)
- (with-current-buffer standard-output
- (describe-package-1 package)))))
-
-(defun describe-package-1 (package)
- (require 'lisp-mnt)
- (let ((package-name (symbol-name package))
- (built-in (assq package package--builtins))
- desc pkg-dir reqs version installable archive)
- (prin1 package)
- (princ " is ")
- (cond
- ;; Loaded packages are in `package-alist'.
- ((setq desc (cdr (assq package package-alist)))
- (setq version (package-version-join (package-desc-vers desc)))
- (if (setq pkg-dir (package--dir package-name version))
- (insert "an installed package.\n\n")
- ;; This normally does not happen.
- (insert "a deleted package.\n\n")))
- ;; Available packages are in `package-archive-contents'.
- ((setq desc (cdr (assq package package-archive-contents)))
- (setq version (package-version-join (package-desc-vers desc))
- archive (aref desc (- (length desc) 1))
- installable t)
- (if built-in
- (insert "a built-in package.\n\n")
- (insert "an uninstalled package.\n\n")))
- (built-in
- (setq desc (cdr built-in)
- version (package-version-join (package-desc-vers desc)))
- (insert "a built-in package.\n\n"))
- (t
- (insert "an orphan package.\n\n")))
-
- (insert " " (propertize "Status" 'font-lock-face 'bold) ": ")
- (cond (pkg-dir
- (insert (propertize "Installed"
- 'font-lock-face 'font-lock-comment-face))
- (insert " in `")
- ;; Todo: Add button for uninstalling.
- (help-insert-xref-button (file-name-as-directory pkg-dir)
- 'help-package-def pkg-dir)
- (if built-in
- (insert "',\n shadowing a "
- (propertize "built-in package"
- 'font-lock-face 'font-lock-builtin-face)
- ".")
- (insert "'.")))
- (installable
- (if built-in
- (insert (propertize "Built-in." 'font-lock-face 'font-lock-builtin-face)
- " Alternate version available")
- (insert "Available"))
- (insert " from " archive)
- (insert " -- ")
- (let ((button-text (if (display-graphic-p) "Install" "[Install]"))
- (button-face (if (display-graphic-p)
- '(:box (:line-width 2 :color "dark grey")
- :background "light grey"
- :foreground "black")
- 'link)))
- (insert-text-button button-text 'face button-face 'follow-link t
- 'package-symbol package
- 'action 'package-install-button-action)))
- (built-in
- (insert (propertize "Built-in." 'font-lock-face 'font-lock-builtin-face)))
- (t (insert "Deleted.")))
- (insert "\n")
- (and version (> (length version) 0)
- (insert " "
- (propertize "Version" 'font-lock-face 'bold) ": " version "\n"))
-
- (setq reqs (if desc (package-desc-reqs desc)))
- (when reqs
- (insert " " (propertize "Requires" 'font-lock-face 'bold) ": ")
- (let ((first t)
- name vers text)
- (dolist (req reqs)
- (setq name (car req)
- vers (cadr req)
- text (format "%s-%s" (symbol-name name)
- (package-version-join vers)))
- (cond (first (setq first nil))
- ((>= (+ 2 (current-column) (length text))
- (window-width))
- (insert ",\n "))
- (t (insert ", ")))
- (help-insert-xref-button text 'help-package name))
- (insert "\n")))
- (insert " " (propertize "Summary" 'font-lock-face 'bold)
- ": " (if desc (package-desc-doc desc)) "\n\n")
-
- (if built-in
- ;; For built-in packages, insert the commentary.
- (let ((fn (locate-file (concat package-name ".el") load-path
- load-file-rep-suffixes))
- (opoint (point)))
- (insert (or (lm-commentary fn) ""))
- (save-excursion
- (goto-char opoint)
- (when (re-search-forward "^;;; Commentary:\n" nil t)
- (replace-match ""))
- (while (re-search-forward "^\\(;+ ?\\)" nil t)
- (replace-match ""))))
- (let ((readme (expand-file-name (concat package-name "-readme.txt")
- package-user-dir))
- readme-string)
- ;; For elpa packages, try downloading the commentary. If that
- ;; fails, try an existing readme file in `package-user-dir'.
- (cond ((condition-case nil
- (package--with-work-buffer (package-archive-base package)
- (concat package-name "-readme.txt")
- (setq buffer-file-name
- (expand-file-name readme package-user-dir))
- (let ((version-control 'never))
- (save-buffer))
- (setq readme-string (buffer-string))
- t)
- (error nil))
- (insert readme-string))
- ((file-readable-p readme)
- (insert-file-contents readme)
- (goto-char (point-max))))))))
-
-(defun package-install-button-action (button)
- (let ((package (button-get button 'package-symbol)))
- (when (y-or-n-p (format "Install package `%s'? " package))
- (package-install package)
- (revert-buffer nil t)
- (goto-char (point-min)))))
-
-\f
-;;;; Package menu mode.
-
-(defvar package-menu-mode-map
- (let ((map (make-sparse-keymap))
- (menu-map (make-sparse-keymap "Package")))
- (set-keymap-parent map tabulated-list-mode-map)
- (define-key map "\C-m" 'package-menu-describe-package)
- (define-key map "u" 'package-menu-mark-unmark)
- (define-key map "\177" 'package-menu-backup-unmark)
- (define-key map "d" 'package-menu-mark-delete)
- (define-key map "i" 'package-menu-mark-install)
- (define-key map "U" 'package-menu-mark-upgrades)
- (define-key map "r" 'package-menu-refresh)
- (define-key map "~" 'package-menu-mark-obsolete-for-deletion)
- (define-key map "x" 'package-menu-execute)
- (define-key map "h" 'package-menu-quick-help)
- (define-key map "?" 'package-menu-describe-package)
- (define-key map [menu-bar package-menu] (cons "Package" menu-map))
- (define-key menu-map [mq]
- '(menu-item "Quit" quit-window
- :help "Quit package selection"))
- (define-key menu-map [s1] '("--"))
- (define-key menu-map [mn]
- '(menu-item "Next" next-line
- :help "Next Line"))
- (define-key menu-map [mp]
- '(menu-item "Previous" previous-line
- :help "Previous Line"))
- (define-key menu-map [s2] '("--"))
- (define-key menu-map [mu]
- '(menu-item "Unmark" package-menu-mark-unmark
- :help "Clear any marks on a package and move to the next line"))
- (define-key menu-map [munm]
- '(menu-item "Unmark Backwards" package-menu-backup-unmark
- :help "Back up one line and clear any marks on that package"))
- (define-key menu-map [md]
- '(menu-item "Mark for Deletion" package-menu-mark-delete
- :help "Mark a package for deletion and move to the next line"))
- (define-key menu-map [mi]
- '(menu-item "Mark for Install" package-menu-mark-install
- :help "Mark a package for installation and move to the next line"))
- (define-key menu-map [mupgrades]
- '(menu-item "Mark Upgradable Packages" package-menu-mark-upgrades
- :help "Mark packages that have a newer version for upgrading"))
- (define-key menu-map [s3] '("--"))
- (define-key menu-map [mg]
- '(menu-item "Update Package List" revert-buffer
- :help "Update the list of packages"))
- (define-key menu-map [mr]
- '(menu-item "Refresh Package List" package-menu-refresh
- :help "Download the ELPA archive"))
- (define-key menu-map [s4] '("--"))
- (define-key menu-map [mt]
- '(menu-item "Mark Obsolete Packages" package-menu-mark-obsolete-for-deletion
- :help "Mark all obsolete packages for deletion"))
- (define-key menu-map [mx]
- '(menu-item "Execute Actions" package-menu-execute
- :help "Perform all the marked actions"))
- (define-key menu-map [s5] '("--"))
- (define-key menu-map [mh]
- '(menu-item "Help" package-menu-quick-help
- :help "Show short key binding help for package-menu-mode"))
- (define-key menu-map [mc]
- '(menu-item "View Commentary" package-menu-view-commentary
- :help "Display information about this package"))
- map)
- "Local keymap for `package-menu-mode' buffers.")
-
-(defvar package-menu--new-package-list nil
- "List of newly-available packages since `list-packages' was last called.")
-
-(define-derived-mode package-menu-mode tabulated-list-mode "Package Menu"
- "Major mode for browsing a list of packages.
-Letters do not insert themselves; instead, they are commands.
-\\<package-menu-mode-map>
-\\{package-menu-mode-map}"
- (setq tabulated-list-format [("Package" 18 package-menu--name-predicate)
- ("Version" 12 nil)
- ("Status" 10 package-menu--status-predicate)
- ("Description" 0 nil)])
- (setq tabulated-list-padding 2)
- (setq tabulated-list-sort-key (cons "Status" nil))
- (tabulated-list-init-header))
-
-(defmacro package--push (package desc status listname)
- "Convenience macro for `package-menu--generate'.
-If the alist stored in the symbol LISTNAME lacks an entry for a
-package PACKAGE with descriptor DESC, add one. The alist is
-keyed with cons cells (PACKAGE . VERSION-LIST), where PACKAGE is
-a symbol and VERSION-LIST is a version list."
- `(let* ((version (package-desc-vers ,desc))
- (key (cons ,package version)))
- (unless (assoc key ,listname)
- (push (list key ,status (package-desc-doc ,desc)) ,listname))))
-
-(defun package-menu--generate (remember-pos packages)
- "Populate the Package Menu.
-If REMEMBER-POS is non-nil, keep point on the same entry.
-PACKAGES should be t, which means to display all known packages,
-or a list of package names (symbols) to display."
- ;; Construct list of ((PACKAGE . VERSION) STATUS DESCRIPTION).
- (let (info-list name)
- ;; Installed packages:
- (dolist (elt package-alist)
- (setq name (car elt))
- (when (or (eq packages t) (memq name packages))
- (package--push name (cdr elt)
- (if (stringp (cadr (assq name package-load-list)))
- "held" "installed")
- info-list)))
-
- ;; Built-in packages:
- (dolist (elt package--builtins)
- (setq name (car elt))
- (when (and (not (eq name 'emacs)) ; Hide the `emacs' package.
- (or (eq packages t) (memq name packages)))
- (package--push name (cdr elt) "built-in" info-list)))
-
- ;; Available and disabled packages:
- (dolist (elt package-archive-contents)
- (setq name (car elt))
- (when (or (eq packages t) (memq name packages))
- (let ((hold (assq name package-load-list)))
- (package--push name (cdr elt)
- (cond
- ((and hold (null (cadr hold))) "disabled")
- ((memq name package-menu--new-package-list) "new")
- (t "available"))
- info-list))))
-
- ;; Obsolete packages:
- (dolist (elt package-obsolete-alist)
- (dolist (inner-elt (cdr elt))
- (when (or (eq packages t) (memq (car elt) packages))
- (package--push (car elt) (cdr inner-elt) "obsolete" info-list))))
-
- ;; Print the result.
- (setq tabulated-list-entries (mapcar 'package-menu--print-info info-list))
- (tabulated-list-print remember-pos)))
-
-(defun package-menu--print-info (pkg)
- "Return a package entry suitable for `tabulated-list-entries'.
-PKG has the form ((PACKAGE . VERSION) STATUS DOC).
-Return (KEY [NAME VERSION STATUS DOC]), where KEY is the
-identifier (NAME . VERSION-LIST)."
- (let* ((package (caar pkg))
- (version (cdr (car pkg)))
- (status (nth 1 pkg))
- (doc (or (nth 2 pkg) ""))
- (face (cond
- ((string= status "built-in") 'font-lock-builtin-face)
- ((string= status "available") 'default)
- ((string= status "new") 'bold)
- ((string= status "held") 'font-lock-constant-face)
- ((string= status "disabled") 'font-lock-warning-face)
- ((string= status "installed") 'font-lock-comment-face)
- (t 'font-lock-warning-face)))) ; obsolete.
- (list (cons package version)
- (vector (list (symbol-name package)
- 'face 'link
- 'follow-link t
- 'package-symbol package
- 'action 'package-menu-describe-package)
- (propertize (package-version-join version)
- 'font-lock-face face)
- (propertize status 'font-lock-face face)
- (propertize doc 'font-lock-face face)))))
-
-(defun package-menu-refresh ()
- "Download the Emacs Lisp package archive.
-This fetches the contents of each archive specified in
-`package-archives', and then refreshes the package menu."
- (interactive)
- (unless (derived-mode-p 'package-menu-mode)
- (error "The current buffer is not a Package Menu"))
- (package-refresh-contents)
- (package-menu--generate t t))
-
-(defun package-menu-describe-package (&optional button)
- "Describe the current package.
-If optional arg BUTTON is non-nil, describe its associated package."
- (interactive)
- (let ((package (if button (button-get button 'package-symbol)
- (car (tabulated-list-get-id)))))
- (if package
- (describe-package package))))
-
-;; fixme numeric argument
-(defun package-menu-mark-delete (&optional _num)
- "Mark a package for deletion and move to the next line."
- (interactive "p")
- (if (member (package-menu-get-status) '("installed" "obsolete"))
- (tabulated-list-put-tag "D" t)
- (forward-line)))
-
-(defun package-menu-mark-install (&optional _num)
- "Mark a package for installation and move to the next line."
- (interactive "p")
- (if (member (package-menu-get-status) '("available" "new"))
- (tabulated-list-put-tag "I" t)
- (forward-line)))
-
-(defun package-menu-mark-unmark (&optional _num)
- "Clear any marks on a package and move to the next line."
- (interactive "p")
- (tabulated-list-put-tag " " t))
-
-(defun package-menu-backup-unmark ()
- "Back up one line and clear any marks on that package."
- (interactive)
- (forward-line -1)
- (tabulated-list-put-tag " "))
-
-(defun package-menu-mark-obsolete-for-deletion ()
- "Mark all obsolete packages for deletion."
- (interactive)
- (save-excursion
- (goto-char (point-min))
- (while (not (eobp))
- (if (equal (package-menu-get-status) "obsolete")
- (tabulated-list-put-tag "D" t)
- (forward-line 1)))))
-
-(defun package-menu-quick-help ()
- "Show short key binding help for package-menu-mode."
- (interactive)
- (message "n-ext, i-nstall, d-elete, u-nmark, x-ecute, r-efresh, h-elp"))
-
-(define-obsolete-function-alias
- 'package-menu-view-commentary 'package-menu-describe-package "24.1")
-
-(defun package-menu-get-status ()
- (let* ((pkg (tabulated-list-get-id))
- (entry (and pkg (assq pkg tabulated-list-entries))))
- (if entry
- (aref (cadr entry) 2)
- "")))
-
-(defun package-menu--find-upgrades ()
- (let (installed available upgrades)
- ;; Build list of installed/available packages in this buffer.
- (dolist (entry tabulated-list-entries)
- ;; ENTRY is ((NAME . VERSION) [NAME VERSION STATUS DOC])
- (let ((pkg (car entry))
- (status (aref (cadr entry) 2)))
- (cond ((equal status "installed")
- (push pkg installed))
- ((member status '("available" "new"))
- (push pkg available)))))
- ;; Loop through list of installed packages, finding upgrades
- (dolist (pkg installed)
- (let ((avail-pkg (assq (car pkg) available)))
- (and avail-pkg
- (version-list-< (cdr pkg) (cdr avail-pkg))
- (push avail-pkg upgrades))))
- upgrades))
-
-(defun package-menu-mark-upgrades ()
- "Mark all upgradable packages in the Package Menu.
-For each installed package with a newer version available, place
-an (I)nstall flag on the available version and a (D)elete flag on
-the installed version. A subsequent \\[package-menu-execute]
-call will upgrade the package."
- (interactive)
- (unless (derived-mode-p 'package-menu-mode)
- (error "The current buffer is not a Package Menu"))
- (let ((upgrades (package-menu--find-upgrades)))
- (if (null upgrades)
- (message "No packages to upgrade.")
- (widen)
- (save-excursion
- (goto-char (point-min))
- (while (not (eobp))
- (let* ((pkg (tabulated-list-get-id))
- (upgrade (assq (car pkg) upgrades)))
- (cond ((null upgrade)
- (forward-line 1))
- ((equal pkg upgrade)
- (package-menu-mark-install))
- (t
- (package-menu-mark-delete))))))
- (message "%d package%s marked for upgrading."
- (length upgrades)
- (if (= (length upgrades) 1) "" "s")))))
-
-(defun package-menu-execute (&optional noquery)
- "Perform marked Package Menu actions.
-Packages marked for installation are downloaded and installed;
-packages marked for deletion are removed.
-Optional argument NOQUERY non-nil means do not ask the user to confirm."
- (interactive)
- (unless (derived-mode-p 'package-menu-mode)
- (error "The current buffer is not in Package Menu mode"))
- (let (install-list delete-list cmd id)
- (save-excursion
- (goto-char (point-min))
- (while (not (eobp))
- (setq cmd (char-after))
- (unless (eq cmd ?\s)
- ;; This is the key (PACKAGE . VERSION-LIST).
- (setq id (tabulated-list-get-id))
- (cond ((eq cmd ?D)
- (push (cons (symbol-name (car id))
- (package-version-join (cdr id)))
- delete-list))
- ((eq cmd ?I)
- (push (car id) install-list))))
- (forward-line)))
- (when install-list
- (if (or
- noquery
- (yes-or-no-p
- (if (= (length install-list) 1)
- (format "Install package `%s'? " (car install-list))
- (format "Install these %d packages (%s)? "
- (length install-list)
- (mapconcat 'symbol-name install-list ", ")))))
- (mapc 'package-install install-list)))
- ;; Delete packages, prompting if necessary.
- (when delete-list
- (if (or
- noquery
- (yes-or-no-p
- (if (= (length delete-list) 1)
- (format "Delete package `%s-%s'? "
- (caar delete-list)
- (cdr (car delete-list)))
- (format "Delete these %d packages (%s)? "
- (length delete-list)
- (mapconcat (lambda (elt)
- (concat (car elt) "-" (cdr elt)))
- delete-list
- ", ")))))
- (dolist (elt delete-list)
- (condition-case-unless-debug err
- (package-delete (car elt) (cdr elt))
- (error (message (cadr err)))))
- (error "Aborted")))
- ;; If we deleted anything, regenerate `package-alist'. This is done
- ;; automatically if we installed a package.
- (and delete-list (null install-list)
- (package-initialize))
- (if (or delete-list install-list)
- (package-menu--generate t t)
- (message "No operations specified."))))
-
-(defun package-menu--version-predicate (A B)
- (let ((vA (or (aref (cadr A) 1) '(0)))
- (vB (or (aref (cadr B) 1) '(0))))
- (if (version-list-= vA vB)
- (package-menu--name-predicate A B)
- (version-list-< vA vB))))
-
-(defun package-menu--status-predicate (A B)
- (let ((sA (aref (cadr A) 2))
- (sB (aref (cadr B) 2)))
- (cond ((string= sA sB)
- (package-menu--name-predicate A B))
- ((string= sA "new") t)
- ((string= sB "new") nil)
- ((string= sA "available") t)
- ((string= sB "available") nil)
- ((string= sA "installed") t)
- ((string= sB "installed") nil)
- ((string= sA "held") t)
- ((string= sB "held") nil)
- ((string= sA "built-in") t)
- ((string= sB "built-in") nil)
- ((string= sA "obsolete") t)
- ((string= sB "obsolete") nil)
- (t (string< sA sB)))))
-
-(defun package-menu--description-predicate (A B)
- (let ((dA (aref (cadr A) 3))
- (dB (aref (cadr B) 3)))
- (if (string= dA dB)
- (package-menu--name-predicate A B)
- (string< dA dB))))
-
-(defun package-menu--name-predicate (A B)
- (string< (symbol-name (caar A))
- (symbol-name (caar B))))
-
-;;;###autoload
-(defun list-packages (&optional no-fetch)
- "Display a list of packages.
-This first fetches the updated list of packages before
-displaying, unless a prefix argument NO-FETCH is specified.
-The list is displayed in a buffer named `*Packages*'."
- (interactive "P")
- (require 'finder-inf nil t)
- ;; Initialize the package system if necessary.
- (unless package--initialized
- (package-initialize t))
- (let (old-archives new-packages)
- (unless no-fetch
- ;; Read the locally-cached archive-contents.
- (package-read-all-archive-contents)
- (setq old-archives package-archive-contents)
- ;; Fetch the remote list of packages.
- (package-refresh-contents)
- ;; Find which packages are new.
- (dolist (elt package-archive-contents)
- (unless (assq (car elt) old-archives)
- (push (car elt) new-packages))))
-
- ;; Generate the Package Menu.
- (let ((buf (get-buffer-create "*Packages*")))
- (with-current-buffer buf
- (package-menu-mode)
- (set (make-local-variable 'package-menu--new-package-list)
- new-packages)
- (package-menu--generate nil t))
- ;; The package menu buffer has keybindings. If the user types
- ;; `M-x list-packages', that suggests it should become current.
- (switch-to-buffer buf))
-
- (let ((upgrades (package-menu--find-upgrades)))
- (if upgrades
- (message "%d package%s can be upgraded; type `%s' to mark %s for upgrading."
- (length upgrades)
- (if (= (length upgrades) 1) "" "s")
- (substitute-command-keys "\\[package-menu-mark-upgrades]")
- (if (= (length upgrades) 1) "it" "them"))))))
-
-;;;###autoload
-(defalias 'package-list-packages 'list-packages)
-
-;; Used in finder.el
-(defun package-show-package-list (packages)
- "Display PACKAGES in a *Packages* buffer.
-This is similar to `list-packages', but it does not fetch the
-updated list of packages, and it only displays packages with
-names in PACKAGES (which should be a list of symbols)."
- (require 'finder-inf nil t)
- (let ((buf (get-buffer-create "*Packages*")))
- (with-current-buffer buf
- (package-menu-mode)
- (package-menu--generate nil packages))
- (switch-to-buffer buf)))
-
-(defun package-list-packages-no-fetch ()
- "Display a list of packages.
-Does not fetch the updated list of packages before displaying.
-The list is displayed in a buffer named `*Packages*'."
- (interactive)
- (list-packages t))
-
-(provide 'package)
-
-;;; package.el ends here
projects / emacsconfig.git / commitdiff