diff options
Diffstat (limited to 'lisp/emacs-lisp/package.el')
| -rw-r--r-- | lisp/emacs-lisp/package.el | 480 |
1 files changed, 286 insertions, 194 deletions
diff --git a/lisp/emacs-lisp/package.el b/lisp/emacs-lisp/package.el index 207c2e5c489..dcede1a5b27 100644 --- a/lisp/emacs-lisp/package.el +++ b/lisp/emacs-lisp/package.el @@ -101,7 +101,7 @@ ;; Michael Olson <mwolson@member.fsf.org> ;; Sebastian Tennant <sebyte@smolny.plus.com> ;; Stefan Monnier <monnier@iro.umontreal.ca> -;; Vinicius Jose Latorre <viniciusjl@ig.com.br> +;; Vinicius Jose Latorre <viniciusjl.gnu@gmail.com> ;; Phil Hagelberg <phil@hagelb.org> ;;; ToDo: @@ -143,8 +143,8 @@ ;;; Code: +(require 'cl-lib) (eval-when-compile (require 'subr-x)) -(eval-when-compile (require 'cl-lib)) (eval-when-compile (require 'epg)) ;For setf accessors. (require 'seq) @@ -161,29 +161,34 @@ ;;; Customization options ;;;###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\"). + "Whether to make installed packages available when Emacs starts. +If non-nil, packages are made available before reading the init +file (but after reading the early init file). This means that if +you wish to set this variable, you must do so in the early init +file. Regardless of the value of this variable, packages are not +made available 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." +make installed packages available at any time, or you can +call (package-initialize) in your init-file." :type 'boolean :version "24.1") (defcustom package-load-list '(all) - "List of packages for `package-initialize' to load. + "List of packages for `package-initialize' to make available. 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. +symbol `all'. The symbol `all' says to make available 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, the most recent version is activated. -If VERSION is a string, only that version is ever loaded. +If VERSION is t, the most recent version is made available. +If VERSION is a string, only that version is ever made available. 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\")." +If VERSION is nil, the package is not made available (it is \"disabled\")." :type '(repeat (choice (const all) (list :tag "Specific package" (symbol :tag "Package name") @@ -491,9 +496,9 @@ This is, approximately, the inverse of `version-to-list'. (defun package-desc-suffix (pkg-desc) (pcase (package-desc-kind pkg-desc) - (`single ".el") - (`tar ".tar") - (`dir "") + ('single ".el") + ('tar ".tar") + ('dir "") (kind (error "Unknown package kind: %s" kind)))) (defun package-desc--keywords (pkg-desc) @@ -676,13 +681,17 @@ PKG-DESC is a `package-desc' object." (defvar Info-directory-list) (declare-function info-initialize "info" ()) +(defvar package--quickstart-pkgs t + "If set to a list, we're computing the set of pkgs to activate.") + (defun package--load-files-for-activation (pkg-desc reload) "Load files for activating a package given by PKG-DESC. Load the autoloads file, and ensure `load-path' is setup. If RELOAD is non-nil, also load all files in the package that correspond to previously loaded files." - (let* ((loaded-files-list (when reload - (package--list-loaded-files (package-desc-dir pkg-desc))))) + (let* ((loaded-files-list + (when reload + (package--list-loaded-files (package-desc-dir pkg-desc))))) ;; Add to load path, add autoloads, and activate the package. (package--activate-autoloads-and-load-path pkg-desc) ;; Call `load' on all files in `package-desc-dir' already present in @@ -718,7 +727,10 @@ correspond to previously loaded files (those returned by (message "Unable to activate package `%s'.\nRequired package `%s-%s' is unavailable" name (car req) (package-version-join (cadr req))) (throw 'exit nil)))) - (package--load-files-for-activation pkg-desc reload) + (if (listp package--quickstart-pkgs) + ;; We're only collecting the set of packages to activate! + (push pkg-desc package--quickstart-pkgs) + (package--load-files-for-activation pkg-desc reload)) ;; Add info node. (when (file-exists-p (expand-file-name "dir" pkg-dir)) ;; FIXME: not the friendliest, but simple. @@ -834,7 +846,7 @@ untar into a directory named DIR; otherwise, signal an error." (dirname (package-desc-full-name pkg-desc)) (pkg-dir (expand-file-name dirname package-user-dir))) (pcase (package-desc-kind pkg-desc) - (`dir + ('dir (make-directory pkg-dir t) (let ((file-list (directory-files @@ -848,12 +860,12 @@ untar into a directory named DIR; otherwise, signal an error." ;; things simple by ensuring we're one of them. (setf (package-desc-kind pkg-desc) (if (> (length file-list) 1) 'tar 'single)))) - (`tar + ('tar (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))) - (`single + ('single (let ((el-file (expand-file-name (format "%s.el" name) pkg-dir))) (make-directory pkg-dir t) (package--write-file-no-coding el-file))) @@ -961,17 +973,12 @@ This assumes that `pkg-desc' has already been activated with (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)))) + (pcase-let ((`(,expr . ,offset) (read-from-string str))) + (condition-case () + ;; The call to `ignore' suppresses a compiler warning. + (progn (ignore (read-from-string str offset)) + (error "Can't read whole string")) + (end-of-file expr)))) (defun package--prepare-dependencies (deps) "Turn DEPS into an acceptable list of dependencies. @@ -1009,6 +1016,8 @@ boundaries." (let ((file-name (match-string-no-properties 1)) (desc (match-string-no-properties 2)) (start (line-beginning-position))) + ;; The terminating comment format could be extended to accept a + ;; generic string that is not in English. (unless (search-forward (concat ";;; " file-name ".el ends here")) (error "Package lacks a terminating comment")) ;; Try to include a trailing newline. @@ -1436,45 +1445,61 @@ If successful, set `package-archive-contents'." ;; available on disk. (defvar package--initialized nil) -(defvar package--init-file-ensured nil - "Whether we know the init file has package-initialize.") - ;;;###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. -If `user-init-file' does not mention `(package-initialize)', add -it to the file. If called as part of loading `user-init-file', set `package-enable-at-startup' to nil, to prevent accidentally loading packages twice. + It is not necessary to adjust `load-path' or `require' the individual packages after calling `package-initialize' -- this is -taken care of by `package-initialize'." +taken care of by `package-initialize'. + +If `package-initialize' is called twice during Emacs startup, +signal a warning, since this is a bad idea except in highly +advanced use cases. To suppress the warning, remove the +superfluous call to `package-initialize' from your init-file. If +you have code which must run before `package-initialize', put +that code in the early init-file." (interactive) + (when (and package--initialized (not after-init-time)) + (lwarn '(package reinitialization) :warning + "Unnecessary call to `package-initialize' in init file")) (setq package-alist nil) - (if after-init-time - (package--ensure-init-file) - ;; If `package-initialize' is before we finished loading the init - ;; file, it's obvious we don't need to ensure-init. - (setq package--init-file-ensured t - ;; And likely we don't need to run it again after init. - package-enable-at-startup nil)) + (setq package-enable-at-startup nil) (package-load-all-descriptors) (package-read-all-archive-contents) + (setq package--initialized t) (unless no-activate + (package-activate-all)) + ;; This uses `package--mapc' so it must be called after + ;; `package--initialized' is t. + (package--build-compatibility-table)) + +(defvar package-quickstart-file) + +;;;###autoload +(defun package-activate-all () + "Activate all installed packages. +The variable `package-load-list' controls which packages to load." + (setq package-enable-at-startup nil) + (if (file-readable-p package-quickstart-file) + ;; Skip load-source-file-function which would slow us down by a factor + ;; 2 (this assumes we were careful to save this file so it doesn't need + ;; any decoding). + (let ((load-source-file-function nil)) + (load package-quickstart-file)) + (unless package--initialized + (package-initialize t)) (dolist (elt package-alist) (condition-case err (package-activate (car elt)) ;; Don't let failure of activation of a package arbitrarily stop ;; activation of further packages. - (error (message "%s" (error-message-string err)))))) - (setq package--initialized t) - ;; This uses `package--mapc' so it must be called after - ;; `package--initialized' is t. - (package--build-compatibility-table)) - + (error (message "%s" (error-message-string err))))))) ;;;; Populating `package-archive-contents' from archives ;; This subsection populates the variables listed above from the @@ -1530,7 +1555,7 @@ similar to an entry in `package-alist'. Save the cached copy to (let* ((location (cdr archive)) (name (car archive)) (content (buffer-string)) - (dir (expand-file-name (format "archives/%s" name) package-user-dir)) + (dir (expand-file-name (concat "archives/" name) package-user-dir)) (local-file (expand-file-name file dir))) (when (listp (read content)) (make-directory dir t) @@ -1867,18 +1892,26 @@ If PACKAGE is a symbol, it is the package name and MIN-VERSION should be a version list. If PACKAGE is a `package-desc' object, MIN-VERSION is ignored." - (unless package--initialized (error "package.el is not yet initialized!")) - (if (package-desc-p package) - (let ((dir (package-desc-dir package))) + (cond + ((package-desc-p package) + (let ((dir (package-desc-dir package))) (and (stringp dir) - (file-exists-p dir))) + (file-exists-p dir)))) + ((and (not package--initialized) + (null min-version) + package-activated-list) + ;; We used the quickstart: make it possible to use package-installed-p + ;; even before package is fully initialized. + (memq package package-activated-list)) + ((not package--initialized) (error "package.el is not yet initialized!")) + (t (or (let ((pkg-descs (cdr (assq package package-alist)))) (and pkg-descs (version-list-<= min-version (package-desc-version (car pkg-descs))))) ;; Also check built-in packages. - (package-built-in-p package min-version)))) + (package-built-in-p package min-version))))) (defun package-download-transaction (packages) "Download and install all the packages in PACKAGES. @@ -1888,64 +1921,6 @@ PACKAGES are satisfied, i.e. that PACKAGES is computed using `package-compute-transaction'." (mapc #'package-install-from-archive packages)) -(defun package--ensure-init-file () - "Ensure that the user's init file has `package-initialize'. -`package-initialize' doesn't have to be called, as long as it is -present somewhere in the file, even as a comment. If it is not, -add a call to it along with some explanatory comments." - ;; Don't mess with the init-file from "emacs -Q". - (when (and (stringp user-init-file) - (not package--init-file-ensured) - (file-readable-p user-init-file) - (file-writable-p user-init-file)) - (let* ((buffer (find-buffer-visiting user-init-file)) - buffer-name - (contains-init - (if buffer - (with-current-buffer buffer - (save-excursion - (save-restriction - (widen) - (goto-char (point-min)) - (re-search-forward "(package-initialize\\_>" nil 'noerror)))) - ;; Don't visit the file if we don't have to. - (with-temp-buffer - (insert-file-contents user-init-file) - (goto-char (point-min)) - (re-search-forward "(package-initialize\\_>" nil 'noerror))))) - (unless contains-init - (with-current-buffer (or buffer - (let ((delay-mode-hooks t) - (find-file-visit-truename t)) - (find-file-noselect user-init-file))) - (when buffer - (setq buffer-name (buffer-file-name)) - (set-visited-file-name (file-chase-links user-init-file))) - (save-excursion - (save-restriction - (widen) - (goto-char (point-min)) - (while (and (looking-at-p "[[:blank:]]*\\(;\\|$\\)") - (not (eobp))) - (forward-line 1)) - (insert - "\n" - ";; Added by Package.el. This must come before configurations of\n" - ";; installed packages. Don't delete this line. If you don't want it,\n" - ";; just comment it out by adding a semicolon to the start of the line.\n" - ";; You may delete these explanatory comments.\n" - "(package-initialize)\n") - (unless (looking-at-p "$") - (insert "\n")) - (let ((file-precious-flag t)) - (save-buffer)) - (if buffer - (progn - (set-visited-file-name buffer-name) - (set-buffer-modified-p nil)) - (kill-buffer (current-buffer))))))))) - (setq package--init-file-ensured t)) - ;;;###autoload (defun package-install (pkg &optional dont-select) "Install the package PKG. @@ -1987,7 +1962,9 @@ to install it but still mark it as selected." (package-compute-transaction (list pkg) (package-desc-reqs pkg))) (package-compute-transaction () (list (list pkg)))))) - (package-download-transaction transaction) + (progn + (package-download-transaction transaction) + (package--quickstart-maybe-refresh)) (message "`%s' is already installed" name)))) (defun package-strip-rcs-id (str) @@ -2071,12 +2048,12 @@ If some packages are not installed propose to install them." (cond (available (when (y-or-n-p - (format "%s packages will be installed:\n%s, proceed?" + (format "Packages to install: %d (%s), proceed? " (length available) - (mapconcat #'symbol-name available ", "))) + (mapconcat #'symbol-name available " "))) (mapc (lambda (p) (package-install p 'dont-select)) available))) ((> difference 0) - (message "%s packages are not available (the rest already installed), maybe you need to `M-x package-refresh-contents'" + (message "Packages that are not available: %d (the rest is already installed), maybe you need to `M-x package-refresh-contents'" difference)) (t (message "All your packages are already installed")))))) @@ -2159,7 +2136,9 @@ If NOSAVE is non-nil, the package is not removed from (delete pkg-desc pkgs) (unless (cdr pkgs) (setq package-alist (delq pkgs package-alist)))) - (message "Package `%s' deleted." (package-desc-full-name pkg-desc)))))) + (package--quickstart-maybe-refresh) + (message "Package `%s' deleted." + (package-desc-full-name pkg-desc)))))) ;;;###autoload (defun package-reinstall (pkg) @@ -2193,9 +2172,9 @@ will be deleted." (let ((removable (package--removable-packages))) (if removable (when (y-or-n-p - (format "%s packages will be deleted:\n%s, proceed? " + (format "Packages to delete: %d (%s), proceed? " (length removable) - (mapconcat #'symbol-name removable ", "))) + (mapconcat #'symbol-name removable " "))) (mapc (lambda (p) (package-delete (cadr (assq p package-alist)) t)) removable)) @@ -2282,12 +2261,10 @@ Otherwise no newline is inserted." (setq status "available obsolete")) (when incompatible-reason (setq status "incompatible")) - (prin1 name) - (princ " is ") - (princ (if (memq (aref status 0) '(?a ?e ?i ?o ?u)) "an " "a ")) - (princ status) - (princ " package.\n\n") + (princ (format "Package %S is %s.\n\n" name status)) + ;; TODO: Remove the string decorations and reformat the strings + ;; for future l10n. (package--print-help-section "Status") (cond (built-in (insert (propertize (capitalize status) @@ -2517,7 +2494,7 @@ Otherwise no newline is inserted." (easy-menu-define package-menu-mode-menu package-menu-mode-map "Menu for `package-menu-mode'." - `("Package" + '("Package" ["Describe Package" package-menu-describe-package :help "Display information about this package"] ["Help" package-menu-quick-help :help "Show short key binding help for package-menu-mode"] "--" @@ -2669,9 +2646,9 @@ Installed obsolete packages are always displayed.") (user-error "The current buffer is not a Package Menu")) (setq package-menu--hide-packages (not package-menu--hide-packages)) - (message "%s packages" (if package-menu--hide-packages - "Hiding obsolete or unwanted" - "Displaying all")) + (if package-menu--hide-packages + (message "Hiding obsolete or unwanted packages") + (message "Displaying all packages")) (revert-buffer nil 'no-confirm)) (defun package--remove-hidden (pkg-list) @@ -2697,12 +2674,11 @@ to their archives." ((not package-menu-hide-low-priority) pkg-list) ((eq package-menu-hide-low-priority 'archive) - (let* ((max-priority most-negative-fixnum) - (out)) + (let (max-priority out) (while pkg-list (let ((p (pop pkg-list))) (let ((priority (package-desc-priority p))) - (if (< priority max-priority) + (if (and max-priority (< priority max-priority)) (setq pkg-list nil) (push p out) (setq max-priority priority))))) @@ -2935,17 +2911,17 @@ PKG is a `package-desc' object. Return (PKG-DESC [NAME VERSION STATUS DOC])." (let* ((status (package-desc-status pkg)) (face (pcase status - (`"built-in" 'package-status-built-in) - (`"external" 'package-status-external) - (`"available" 'package-status-available) - (`"avail-obso" 'package-status-avail-obso) - (`"new" 'package-status-new) - (`"held" 'package-status-held) - (`"disabled" 'package-status-disabled) - (`"installed" 'package-status-installed) - (`"dependency" 'package-status-dependency) - (`"unsigned" 'package-status-unsigned) - (`"incompat" 'package-status-incompat) + ("built-in" 'package-status-built-in) + ("external" 'package-status-external) + ("available" 'package-status-available) + ("avail-obso" 'package-status-avail-obso) + ("new" 'package-status-new) + ("held" 'package-status-held) + ("disabled" 'package-status-disabled) + ("installed" 'package-status-installed) + ("dependency" 'package-status-dependency) + ("unsigned" 'package-status-unsigned) + ("incompat" 'package-status-incompat) (_ 'font-lock-warning-face)))) ; obsolete. (list pkg `[(,(symbol-name (package-desc-name pkg)) @@ -2995,11 +2971,11 @@ If optional arg BUTTON is non-nil, describe its associated package." (let ((hidden (cl-remove-if-not (lambda (e) (string-match re (symbol-name (car e)))) package-archive-contents))) - (message (substitute-command-keys - (concat "Hiding %s packages, type `\\[package-menu-toggle-hiding]'" - " to toggle or `\\[customize-variable] RET package-hidden-regexps'" - " to customize it")) - (length hidden))))) + (message "Packages to hide: %d. Type `%s' to toggle or `%s' to customize" + (length hidden) + (substitute-command-keys "\\[package-menu-toggle-hidding]") + (substitute-command-keys "\\[customize-variable] RET package-hidden-regexps"))))) + (defun package-menu-describe-package (&optional button) "Describe the current package. @@ -3134,7 +3110,7 @@ Implementation of `package-menu-mark-upgrades'." (setq package-menu--mark-upgrades-pending nil) (let ((upgrades (package-menu--find-upgrades))) (if (null upgrades) - (message "No packages to upgrade.") + (message "No packages to upgrade") (widen) (save-excursion (goto-char (point-min)) @@ -3147,9 +3123,9 @@ Implementation of `package-menu-mark-upgrades'." (package-menu-mark-install)) (t (package-menu-mark-delete)))))) - (message "%d package%s marked for upgrading." - (length upgrades) - (if (= (length upgrades) 1) "" "s"))))) + (message "Packages marked for upgrading: %d" + (length upgrades))))) + (defun package-menu-mark-upgrades () "Mark all upgradable packages in the Package Menu. @@ -3172,17 +3148,12 @@ immediately." PACKAGES is a list of `package-desc' objects. Formats the returned string to be usable in a minibuffer prompt (see `package-menu--prompt-transaction-p')." - (cond - ;; None - ((not packages) "") - ;; More than 1 - ((cdr packages) - (format "these %d packages (%s)" - (length packages) - (mapconcat #'package-desc-full-name packages ", "))) - ;; Exactly 1 - (t (format-message "package `%s'" - (package-desc-full-name (car packages)))))) + ;; The case where `package' is empty is handled in + ;; `package-menu--prompt-transaction-p' below. + (format "%d (%s)" + (length packages) + (mapconcat #'package-desc-full-name packages " "))) + (defun package-menu--prompt-transaction-p (delete install upgrade) "Prompt the user about DELETE, INSTALL, and UPGRADE. @@ -3190,16 +3161,14 @@ DELETE, INSTALL, and UPGRADE are lists of `package-desc' objects. Either may be nil, but not all." (y-or-n-p (concat - (when delete "Delete ") - (package-menu--list-to-prompt delete) - (when (and delete install) - (if upgrade "; " "; and ")) - (when install "Install ") - (package-menu--list-to-prompt install) - (when (and upgrade (or install delete)) "; and ") - (when upgrade "Upgrade ") - (package-menu--list-to-prompt upgrade) - "? "))) + (when delete + (format "Packages to delete: %s. " (package-menu--list-to-prompt delete))) + (when install + (format "Packages to install: %s. " (package-menu--list-to-prompt install))) + (when upgrade + (format "Packages to upgrade: %s. " (package-menu--list-to-prompt upgrade))) + "Proceed? "))) + (defun package-menu--partition-transaction (install delete) "Return an alist describing an INSTALL DELETE transaction. @@ -3283,25 +3252,24 @@ Optional argument NOQUERY non-nil means do not ask the user to confirm." (when (or noquery (package-menu--prompt-transaction-p .delete .install .upgrade)) (let ((message-template - (concat "Package menu: Operation %s [" - (when .delete (format "Delet__ %s" (length .delete))) - (when (and .delete .install) "; ") - (when .install (format "Install__ %s" (length .install))) - (when (and .upgrade (or .install .delete)) "; ") - (when .upgrade (format "Upgrad__ %s" (length .upgrade))) + (concat "[ " + (when .delete + (format "Delete %d " (length .delete))) + (when .install + (format "Install %d " (length .install))) + (when .upgrade + (format "Upgrade %d " (length .upgrade))) "]"))) - (message (replace-regexp-in-string "__" "ing" message-template) "started") + (message "Operation %s started" message-template) ;; Packages being upgraded are not marked as selected. (package--update-selected-packages .install .delete) (package-menu--perform-transaction install-list delete-list) (when package-selected-packages (if-let* ((removable (package--removable-packages))) - (message "Package menu: Operation finished. %d packages %s" - (length removable) - (substitute-command-keys - "are no longer needed, type `\\[package-autoremove]' to remove them")) - (message (replace-regexp-in-string "__" "ed" message-template) - "finished")))))))) + (message "Operation finished. Packages that are no longer needed: %d. Type `%s' to remove them" + (length removable) + (substitute-command-keys "\\[package-autoremove]")) + (message "Operation %s finished" message-template)))))))) (defun package-menu--version-predicate (A B) (let ((vA (or (aref (cadr A) 1) '(0))) @@ -3368,11 +3336,10 @@ Store this list in `package-menu--new-package-list'." (defun package-menu--find-and-notify-upgrades () "Notify the user of upgradable packages." (when-let* ((upgrades (package-menu--find-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")))) + (message "Packages that can be upgraded: %d; type `%s' to mark for upgrading." + (length upgrades) + (substitute-command-keys "\\[package-menu-mark-upgrades]")))) + (defun package-menu--post-refresh () "If there's a *Packages* buffer, revert it and check for new packages and upgrades. @@ -3484,6 +3451,131 @@ The list is displayed in a buffer named `*Packages*'." (interactive) (list-packages t)) +;;;###autoload +(defun package-get-version () + "Return the version number of the package in which this is used. +Assumes it is used from an Elisp file placed inside the top-level directory +of an installed ELPA package. +The return value is a string (or nil in case we can't find it)." + ;; In a sense, this is a lie, but it does just what we want: precompute + ;; the version at compile time and hardcodes it into the .elc file! + (declare (pure t)) + ;; Hack alert! + (let ((file + (or (if (boundp 'byte-compile-current-file) byte-compile-current-file) + load-file-name + buffer-file-name))) + (cond + ((null file) nil) + ;; Packages are normally installed into directories named "<pkg>-<vers>", + ;; so get the version number from there. + ((string-match "/[^/]+-\\([0-9]\\(?:[0-9.]\\|pre\\|beta\\|alpha\\|snapshot\\)+\\)/[^/]+\\'" file) + (match-string 1 file)) + ;; For packages run straight from the an elpa.git clone, there's no + ;; "-<vers>" in the directory name, so we have to fetch the version + ;; the hard way. + (t + (let* ((pkgdir (file-name-directory file)) + (pkgname (file-name-nondirectory (directory-file-name pkgdir))) + (mainfile (expand-file-name (concat pkgname ".el") pkgdir))) + (when (file-readable-p mainfile) + (require 'lisp-mnt) + (with-temp-buffer + (insert-file-contents mainfile) + (or (lm-header "package-version") + (lm-header "version"))))))))) + +;;;; Quickstart: precompute activation actions for faster start up. + +;; Activating packages via `package-initialize' is costly: for N installed +;; packages, it needs to read all N <pkg>-pkg.el files first to decide +;; which packages to activate, and then again N <pkg>-autoloads.el files. +;; To speed this up, we precompute a mega-autoloads file which is the +;; concatenation of all those <pkg>-autoloads.el, so we can activate +;; all packages by loading this one file (and hence without initializing +;; package.el). + +;; Other than speeding things up, this also offers a bootstrap feature: +;; it lets us activate packages according to `package-load-list' and +;; `package-user-dir' even before those vars are set. + +(defcustom package-quickstart nil + "Precompute activation actions to speed up startup. +This requires the use of `package-quickstart-refresh' every time the +activations need to be changed, such as when `package-load-list' is modified." + :type 'boolean + :version "27.1") + +(defcustom package-quickstart-file + (locate-user-emacs-file "package-quickstart.el") + "Location of the file used to speed up activation of packages at startup." + :type 'file + :version "27.1") + +(defun package--quickstart-maybe-refresh () + (if package-quickstart + ;; FIXME: Delay refresh in case we're installing/deleting + ;; several packages! + (package-quickstart-refresh) + (delete-file package-quickstart-file))) + +(defun package-quickstart-refresh () + "(Re)Generate the `package-quickstart-file'." + (interactive) + (package-initialize 'no-activate) + (require 'info) + (let ((package--quickstart-pkgs ()) + ;; Pretend we haven't activated anything yet! + (package-activated-list ()) + ;; Make sure we can load this file without load-source-file-function. + (coding-system-for-write 'emacs-internal) + (Info-directory-list '(""))) + (dolist (elt package-alist) + (condition-case err + (package-activate (car elt)) + ;; Don't let failure of activation of a package arbitrarily stop + ;; activation of further packages. + (error (message "%s" (error-message-string err))))) + (setq package--quickstart-pkgs (nreverse package--quickstart-pkgs)) + (with-temp-file package-quickstart-file + (emacs-lisp-mode) ;For `syntax-ppss'. + (insert ";;; Quickstart file to activate all packages at startup -*- lexical-binding:t -*-\n") + (insert ";; ¡¡ This file is autogenerated by `package-quickstart-refresh', DO NOT EDIT !!\n\n") + (dolist (pkg package--quickstart-pkgs) + (let* ((file + ;; Prefer uncompiled files (and don't accept .so files). + (let ((load-suffixes '(".el" ".elc"))) + (locate-library (package--autoloads-file-name pkg)))) + (pfile (prin1-to-string file))) + (insert "(let ((load-file-name " pfile "))\n") + (insert-file-contents file) + ;; Fixup the special #$ reader form and throw away comments. + (while (re-search-forward "#\\$\\|^;\\(.*\n\\)" nil 'move) + (unless (nth 8 (syntax-ppss)) + (replace-match (if (match-end 1) "" pfile) t t))) + (unless (bolp) (insert "\n")) + (insert ")\n"))) + (pp `(setq package-activated-list + (append ',(mapcar #'package-desc-name package--quickstart-pkgs) + package-activated-list)) + (current-buffer)) + (let ((info-dirs (butlast Info-directory-list))) + (when info-dirs + (pp `(progn (require 'info) + (info-initialize) + (setq Info-directory-list + (append ',info-dirs Info-directory-list))) + (current-buffer)))) + ;; Use `\s' instead of a space character, so this code chunk is not + ;; mistaken for an actual file-local section of package.el. + (insert " +;; Local\sVariables: +;; version-control: never +;;\sno-byte-compile: t +;; no-update-autoloads: t +;; End: +")))) + (provide 'package) ;;; package.el ends here |