--- /dev/null
+;;; package-get.el --- Retrieve XEmacs package
+
+;; Copyright (C) 1998 by Pete Ware
+;; Copyright (C) 2002 Ben Wing.
+;; Copyright (C) 2003, Steve Youngs
+
+;; Author: Pete Ware <ware@cis.ohio-state.edu>
+;; Heavy-Modifications: Greg Klanderman <greg@alphatech.com>
+;; Jan Vroonhof <vroonhof@math.ethz.ch>
+;; Steve Youngs <youngs@xemacs.org>
+;; Keywords: internal
+
+;; This file is part of XEmacs.
+
+;; XEmacs 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 2, or (at your option)
+;; any later version.
+
+;; XEmacs 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 XEmacs; see the file COPYING. If not, write to the Free
+;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+;; 02111-1307, USA.
+
+;;; Synched up with: Not in FSF
+
+;;; Commentary:
+
+;; package-get -
+;; Retrieve a package and any other required packages from an archive
+;;
+;;
+;; Note (JV): Most of this no longer applies!
+;;
+;; The idea:
+;; A new XEmacs lisp-only release is generated with the following steps:
+;; 1. The maintainer runs some yet to be written program that
+;; generates all the dependency information. This should
+;; determine all the require and provide statements and associate
+;; them with a package.
+;; 2. All the packages are then bundled into their own tar balls
+;; (or whatever format)
+;; 3. Maintainer automatically generates a new `package-get-base'
+;; data structure which contains information such as the
+;; package name, the file to be retrieved, an md5 checksum,
+;; etc (see `package-get-base').
+;; 4. The maintainer posts an announcement with the new version
+;; of `package-get-base'.
+;; 5. A user/system manager saves this posting and runs
+;; `package-get-update' which uses the previously saved list
+;; of packages, `package-get-here' that the user/site
+;; wants to determine what new versions to download and
+;; install.
+;;
+;; A user/site manager can generate a new `package-get-here' structure
+;; by using `package-get-setup' which generates a customize like
+;; interface to the list of packages. The buffer looks something
+;; like:
+;;
+;; gnus - a mail and news reader
+;; [] Always install
+;; [] Needs updating
+;; [] Required by other [packages]
+;; version: 2.0
+;;
+;; vm - a mail reader
+;; [] Always install
+;; [] Needs updating
+;; [] Required by other [packages]
+;;
+;; Where `[]' indicates a toggle box
+;;
+;; - Clicking on "Always install" puts this into
+;; `package-get-here' list. "Needs updating" indicates a new
+;; version is available. Anything already in
+;; `package-get-here' has this enabled.
+;; - "Required by other" means some other packages are going to force
+;; this to be installed. Clicking on [packages] gives a list
+;; of packages that require this.
+;;
+;; The `package-get-base' should be installed in a file in
+;; `data-directory'. The `package-get-here' should be installed in
+;; site-lisp. Both are then read at run time.
+;;
+;; TODO:
+;; - Implement `package-get-setup'
+;; - Actually put `package-get-base' and `package-get-here' into
+;; files that are read.
+;; - Allow users to have their own packages that they want installed
+;; in ~/.xemacs/.
+;; - SOMEONE needs to write the programs that generate the
+;; provides/requires database and makes it into a lisp data
+;; structure suitable for `package-get-base'
+;; - Handle errors such as no package providing a required symbol.
+;; - Tie this into the `require' function to download packages
+;; transparently.
+
+;;; Change Log
+
+;;; Code:
+
+(require 'package-admin)
+;; (require 'package-get-base)
+
+(defgroup package-tools nil
+ "Tools to manipulate packages."
+ :group 'emacs)
+
+(defgroup package-get nil
+ "Automatic Package Fetcher and Installer."
+ :prefix "package-get"
+ :group 'package-tools)
+
+;;;###autoload
+(defvar package-get-base nil
+ "List of packages that are installed at this site.
+For each element in the alist, car is the package name and the cdr is
+a plist containing information about the package. Typical fields
+kept in the plist are:
+
+version - version of this package
+provides - list of symbols provided
+requires - list of symbols that are required.
+ These in turn are provided by other packages.
+filename - name of the file.
+size - size of the file (aka the bundled package)
+md5sum - computed md5 checksum
+description - What this package is for.
+type - Whether this is a 'binary (default) or 'single file package
+
+More fields may be added as needed. An example:
+
+'(
+ (name
+ (version \"<version 2>\"
+ file \"filename\"
+ description \"what this package is about.\"
+ provides (<list>)
+ requires (<list>)
+ size <integer-bytes>
+ md5sum \"<checksum\"
+ type single
+ )
+ (version \"<version 1>\"
+ file \"filename\"
+ description \"what this package is about.\"
+ provides (<list>)
+ requires (<list>)
+ size <integer-bytes>
+ md5sum \"<checksum\"
+ type single
+ )
+ ...
+ ))
+
+For version information, it is assumed things are listed in most
+recent to least recent -- in other words, the version names don't have to
+be lexically ordered. It is debatable if it makes sense to have more than
+one version of a package available.")
+
+(defcustom package-get-dir (temp-directory)
+ "*Where to store temporary files for staging."
+ :tag "Temporary directory"
+ :type 'directory
+ :group 'package-get)
+
+;;;###autoload
+(defcustom package-get-package-index-file-location
+ (car (split-path (or (getenv "EMACSPACKAGEPATH") user-init-directory)))
+ "*The directory where the package-index file can be found."
+ :type 'directory
+ :group 'package-get)
+
+;;;###autoload
+(defcustom package-get-install-to-user-init-directory nil
+ "*If non-nil install packages under `user-init-directory'."
+ :type 'boolean
+ :group 'package-get)
+
+(define-widget 'host-name 'string
+ "A Host name."
+ :tag "Host")
+
+(defcustom package-get-remote nil
+ "*The remote site to contact for downloading packages.
+Format is '(site-name directory-on-site). As a special case, `site-name'
+can be `nil', in which case `directory-on-site' is treated as a local
+directory."
+ :tag "Package repository"
+ :type '(set (choice (const :tag "None" nil)
+ (list :tag "Local" (const :tag "Local" nil) directory)
+ (list :tag "Remote" host-name directory)))
+ :group 'package-get)
+
+;;;###autoload
+(defcustom package-get-download-sites
+ '(
+ ;; Main XEmacs Site (ftp.xemacs.org)
+ ("US (Main XEmacs Site)"
+ "ftp.xemacs.org" "pub/xemacs/packages")
+ ;; In alphabetical order of Country, our mirrors...
+ ("Argentina (xmundo.net)" "xemacs.xmundo.net" "pub/mirrors/xemacs/packages")
+ ("Australia (aarnet.edu.au)" "mirror.aarnet.edu.au" "pub/xemacs/packages")
+ ("Australia (au.xemacs.org)" "ftp.au.xemacs.org" "pub/xemacs/packages")
+ ("Austria (at.xemacs.org)" "ftp.at.xemacs.org" "editors/xemacs/packages")
+ ("Belgium (be.xemacs.org)" "ftp.be.xemacs.org" "xemacs/packages")
+ ("Brazil (br.xemacs.org)" "ftp.br.xemacs.org" "pub/xemacs/packages")
+ ("Canada (ca.xemacs.org)" "ftp.ca.xemacs.org" "pub/Mirror/xemacs/packages")
+ ("Canada (crc.ca)" "ftp.crc.ca" "pub/packages/editors/xemacs/packages")
+ ("Canada (nrc.ca)" "ftp.nrc.ca" "pub/packages/editors/xemacs/packages")
+ ("Czech Republic (cz.xemacs.org)" "ftp.cz.xemacs.org" "MIRRORS/ftp.xemacs.org/pub/xemacs/packages")
+ ("Denmark (dk.xemacs.org)" "ftp.dk.xemacs.org" "pub/emacs/xemacs/packages")
+ ("Finland (fi.xemacs.org)" "ftp.fi.xemacs.org" "pub/mirrors/ftp.xemacs.org/pub/tux/xemacs/packages")
+ ("France (fr.xemacs.org)" "ftp.fr.xemacs.org" "pub/xemacs/packages")
+ ("France (mirror.cict.fr)" "mirror.cict.fr" "xemacs/packages")
+ ("France (pasteur.fr)" "ftp.pasteur.fr" "pub/computing/xemacs/packages")
+ ("Germany (de.xemacs.org)" "ftp.de.xemacs.org" "pub/ftp.xemacs.org/tux/xemacs/packages")
+ ("Iceland (is.xemacs.org)" "ftp.is.xemacs.org" "pub/xemacs/packages")
+ ("Ireland (ie.xemacs.org)" "ftp.ie.xemacs.org" "mirrors/ftp.xemacs.org/pub/xemacs/packages")
+ ("Ireland (heanet.ie)" "ftp.heanet.ie" "mirrors/ftp.xemacs.org/packages")
+ ("Italy (it.xemacs.org)" "ftp.it.xemacs.org" "unix/packages/XEMACS/packages")
+ ("Japan (aist.go.jp)" "ring.aist.go.jp" "pub/text/xemacs/packages")
+ ("Japan (asahi-net.or.jp)" "ring.asahi-net.or.jp" "pub/text/xemacs/packages")
+ ("Japan (dti.ad.jp)" "ftp.dti.ad.jp" "pub/unix/editor/xemacs/packages")
+; ("Japan (jaist.ac.jp)" "ftp.jaist.ac.jp" "pub/GNU/xemacs/packages")
+; ("Japan (jp.xemacs.org)" "ftp.jp.xemacs.org" "pub/GNU/xemacs/packages")
+; ("Japan (nucba.ac.jp)" "mirror.nucba.ac.jp" "mirror/xemacs/packages")
+ ("Japan (sut.ac.jp)" "sunsite.sut.ac.jp" "pub/archives/packages/xemacs/packages")
+ ("Korea (kr.xemacs.org)" "ftp.kr.xemacs.org" "pub/tools/emacs/xemacs/packages")
+ ("New Zealand (nz.xemacs.org)" "ftp.nz.xemacs.org" "mirror/ftp.xemacs.org/packages")
+ ("Norway (no.xemacs.org)" "ftp.no.xemacs.org" "pub/xemacs/packages")
+ ("Poland (pl.xemacs.org)" "ftp.pl.xemacs.org" "pub/unix/editors/xemacs/packages")
+ ("Russia (ru.xemacs.org)" "ftp.ru.xemacs.org" "pub/emacs/xemacs/packages")
+; ("South Africa (za.xemacs.org)" "ftp.za.xemacs.org" "mirrorsites/ftp.xemacs.org/packages")
+ ("Sweden (se.xemacs.org)" "ftp.se.xemacs.org" "pub/gnu/xemacs/packages")
+ ("Switzerland (ch.xemacs.org)" "ftp.ch.xemacs.org" "mirror/xemacs/packages")
+ ("Taiwan (ftp.tw.xemacs.org)" "ftp.tw.xemacs.org" "Unix/Editors/XEmacs/packages")
+ ("UK (uk.xemacs.org)" "ftp.uk.xemacs.org" "sites/ftp.xemacs.org/pub/xemacs/packages")
+ ("US (ibiblio.org)" "mirrors.ibiblio.org" "pub/mirrors/xemacs/packages")
+ ("US (stealth.net)" "ftp.stealth.net" "pub/mirrors/ftp.xemacs.org/pub/xemacs/packages")
+ ("US (unc.edu)" "metalab.unc.edu" "pub/packages/editors/xemacs/packages")
+ ("US (us.xemacs.org)" "ftp.us.xemacs.org" "pub/xemacs/packages")
+; ("US (utk.edu)" "ftp.sunsite.utk.edu" "pub/xemacs/packages")
+ )
+ "*List of remote sites available for downloading packages.
+List format is '(site-description site-name directory-on-site).
+SITE-DESCRIPTION is a textual description of the site. SITE-NAME
+is the internet address of the download site. DIRECTORY-ON-SITE
+is the directory on the site in which packages may be found.
+This variable is used to initialize `package-get-remote', the
+variable actually used to specify package download sites."
+ :tag "Package download sites"
+ :type '(repeat (list (string :tag "Name") host-name directory))
+ :group 'package-get)
+
+;;;###autoload
+(defcustom package-get-pre-release-download-sites
+ '(
+ ;; Main XEmacs Site (ftp.xemacs.org)
+ ("US Pre-Releases (Main XEmacs Site)" "ftp.xemacs.org"
+ "pub/xemacs/beta/experimental/packages")
+ ;; In alphabetical order of Country, our mirrors...
+ ("Argentina Pre-Releases (xmundo.net)" "xemacs.xmundo.net"
+ "pub/mirrors/xemacs/beta/experimental/packages")
+ ("Australia Pre-Releases (aarnet.edu.au)" "mirror.aarnet.edu.au"
+ "pub/xemacs/beta/experimental/packages")
+ ("Australia Pre-Releases (au.xemacs.org)" "ftp.au.xemacs.org"
+ "pub/xemacs/beta/experimental/packages")
+ ("Austria Pre-Releases (at.xemacs.org)" "ftp.at.xemacs.org"
+ "editors/xemacs/beta/experimental/packages")
+ ("Belgium (be.xemacs.org)" "ftp.be.xemacs.org"
+ "xemacs/beta/experimental/packages")
+ ("Brazil Pre-Releases (br.xemacs.org)" "ftp.br.xemacs.org"
+ "pub/xemacs/xemacs-21.5/experimental/packages")
+ ("Canada Pre-Releases (ca.xemacs.org)" "ftp.ca.xemacs.org"
+ "pub/Mirror/xemacs/beta/experimental/packages")
+ ("Canada Pre-Releases (crc.ca)" "ftp.crc.ca"
+ "pub/packages/editors/xemacs/beta/experimental/packages")
+ ("Canada Pre-Releases (nrc.ca)" "ftp.nrc.ca"
+ "pub/packages/editors/xemacs/beta/experimental/packages")
+ ("Czech Republic Pre-Releases (cz.xemacs.org)" "ftp.cz.xemacs.org"
+ "MIRRORS/ftp.xemacs.org/pub/xemacs/xemacs-21.5/experimental/packages")
+ ("Denmark Pre-Releases (dk.xemacs.org)" "ftp.dk.xemacs.org"
+ "pub/emacs/xemacs/beta/experimental/packages")
+ ("Finland Pre-Releases (fi.xemacs.org)" "ftp.fi.xemacs.org"
+ "pub/mirrors/ftp.xemacs.org/pub/tux/xemacs/beta/experimental/packages")
+ ("France Pre-Releases (fr.xemacs.org)" "ftp.fr.xemacs.org"
+ "pub/xemacs/beta/experimental/packages")
+ ("France Pre-Releases (mirror.cict.fr)" "mirror.cict.fr"
+ "xemacs/beta/experimental/packages")
+ ("France Pre-Releases (pasteur.fr)" "ftp.pasteur.fr"
+ "pub/computing/xemacs/beta/experimental/packages")
+ ("Germany Pre-Releases (de.xemacs.org)" "ftp.de.xemacs.org"
+ "pub/ftp.xemacs.org/tux/xemacs/beta/experimental/packages")
+ ("Iceland Pre-Releases (is.xemacs.org)" "ftp.is.xemacs.org"
+ "pub/xemacs/beta/experimental/packages")
+ ("Ireland Pre-Releases (ie.xemacs.org)" "ftp.ie.xemacs.org"
+ "mirrors/ftp.xemacs.org/pub/xemacs/beta/experimental/packages")
+ ("Ireland Pre-Releases (heanet.ie)" "ftp.heanet.ie"
+ "mirrors/ftp.xemacs.org/beta/experimental/packages")
+ ("Italy Pre-Releases (it.xemacs.org)" "ftp.it.xemacs.org"
+ "unix/packages/XEMACS/beta/experimental/packages")
+ ("Japan Pre-Releases (aist.go.jp)" "ring.aist.go.jp"
+ "pub/text/xemacs/beta/experimental/packages")
+ ("Japan Pre-Releases (asahi-net.or.jp)" "ring.asahi-net.or.jp"
+ "pub/text/xemacs/beta/experimental/packages")
+ ("Japan Pre-Releases (dti.ad.jp)" "ftp.dti.ad.jp"
+ "pub/unix/editor/xemacs/beta/experimental/packages")
+; ("Japan Pre-Releases (jaist.ac.jp)" "ftp.jaist.ac.jp"
+; "pub/GNU/xemacs/beta/experimental/packages")
+; ("Japan Pre-Releases (jp.xemacs.org)" "ftp.jp.xemacs.org"
+; "pub/GNU/xemacs/beta/experimental/packages")
+ ("Japan Pre-Releases (sut.ac.jp)" "sunsite.sut.ac.jp"
+ "pub/archives/packages/xemacs/xemacs-21.5/experimental/packages")
+ ("Korea (kr.xemacs.org)" "ftp.kr.xemacs.org"
+ "pub/tools/emacs/xemacs/beta/experimental/packages")
+ ("New Zealand Pre-Releases (nz.xemacs.org)" "ftp.nz.xemacs.org"
+ "mirror/ftp.xemacs.org/packages")
+ ("Norway Pre-Releases (no.xemacs.org)" "ftp.no.xemacs.org"
+ "pub/xemacs/beta/experimental/packages")
+ ("Poland Pre-Releases (pl.xemacs.org)" "ftp.pl.xemacs.org"
+ "pub/unix/editors/xemacs/beta/experimental/packages")
+ ("Russia Pre-Releases (ru.xemacs.org)" "ftp.ru.xemacs.org"
+ "pub/emacs/xemacs/beta/experimental/packages")
+; ("South Africa Pre-Releases (za.xemacs.org)" "ftp.za.xemacs.org"
+; "mirrorsites/ftp.xemacs.org/beta/experimental/packages")
+ ("Sweden Pre-Releases (se.xemacs.org)" "ftp.se.xemacs.org"
+ "pub/gnu/xemacs/beta/experimental/packages")
+ ("Switzerland Pre-Releases (ch.xemacs.org)" "ftp.ch.xemacs.org"
+ "mirror/xemacs/beta/experimental/packages")
+ ("Taiwan Pre-Releases (ftp.tw.xemacs.org)" "ftp.tw.xemacs.org"
+ "Unix/Editors/XEmacs/beta/experimental/packages")
+ ("UK Pre-Releases (uk.xemacs.org)" "ftp.uk.xemacs.org"
+ "sites/ftp.xemacs.org/pub/xemacs/beta/experimental/packages")
+ ("US Pre-Releases (ibiblio.org)" "mirrors.ibiblio.org"
+ "pub/mirrors/xemacs/beta/experimental/packages")
+ ("US Pre-Releases (stealth.net)" "ftp.stealth.net"
+ "pub/mirrors/ftp.xemacs.org/pub/xemacs/beta/experimental/packages")
+ ("US Pre-Releases (unc.edu)" "metalab.unc.edu"
+ "pub/packages/editors/xemacs/beta/experimental/packages")
+ ("US Pre-Releases (us.xemacs.org)" "ftp.us.xemacs.org"
+ "pub/xemacs/beta/experimental/packages")
+; ("US Pre-Releases (utk.edu)" "ftp.sunsite.utk.edu"
+; "pub/xemacs/beta/experimental/packages")
+)
+ "*List of remote sites available for downloading \"Pre-Release\" packages.
+List format is '(site-description site-name directory-on-site).
+SITE-DESCRIPTION is a textual description of the site. SITE-NAME
+is the internet address of the download site. DIRECTORY-ON-SITE
+is the directory on the site in which packages may be found.
+This variable is used to initialize `package-get-remote', the
+variable actually used to specify package download sites."
+ :tag "Pre-Release Package download sites"
+ :type '(repeat (list (string :tag "Name") host-name directory))
+ :group 'package-get)
+
+;;;###autoload
+(defcustom package-get-site-release-download-sites
+ nil
+ "*List of remote sites available for downloading \"Site Release\" packages.
+List format is '(site-description site-name directory-on-site).
+SITE-DESCRIPTION is a textual description of the site. SITE-NAME
+is the internet address of the download site. DIRECTORY-ON-SITE
+is the directory on the site in which packages may be found.
+This variable is used to initialize `package-get-remote', the
+variable actually used to specify package download sites."
+ :tag "Site Release Package download sites"
+ :type '(repeat (list (string :tag "Name") host-name directory))
+ :group 'package-get)
+
+(defcustom package-get-remove-copy t
+ "*After copying and installing a package, if this is t, then remove the
+copy. Otherwise, keep it around."
+ :type 'boolean
+ :group 'package-get)
+
+;; #### it may make sense for this to be a list of names.
+;; #### also, should we rename "*base*" to "*index*" or "*db*"?
+;; "base" is a pretty poor name.
+(defcustom package-get-base-filename "package-index.LATEST.gpg"
+ "*Name of the default package-get database file.
+This may either be a relative path, in which case it is interpreted
+with respect to `package-get-remote', or an absolute path."
+ :type 'file
+ :group 'package-get)
+
+(defcustom package-get-always-update nil
+ "*If Non-nil always make sure we are using the latest package index (base).
+Otherwise respect the `force-current' argument of `package-get-require-base'."
+ :type 'boolean
+ :group 'package-get)
+
+(defun package-get-pgp-available-p ()
+ "Checks the availability of Mailcrypt and PGP executable.
+
+Returns t if both are found, nil otherwise. As a side effect, set
+`mc-default-scheme' dependent on the PGP executable found."
+ (let (result)
+ (when (featurep 'mailcrypt-autoloads)
+ (autoload 'mc-setversion "mc-setversion"))
+ (when (fboundp 'mc-setversion)
+ (cond ((locate-file "gpg" exec-path
+ '("" ".btm" ".bat" ".cmd" ".exe" ".com")
+ 'executable)
+ (mc-setversion "gpg")
+ (setq result t))
+ ((locate-file "pgpe" exec-path
+ '("" ".btm" ".bat" ".cmd" ".exe" ".com")
+ 'executable)
+ (mc-setversion "5.0")
+ (setq result t))
+ ((locate-file "pgp" exec-path
+ '("" ".btm" ".bat" ".cmd" ".exe" ".com")
+ 'executable)
+ (mc-setversion "2.6")
+ (setq result t))))
+ (if result
+ result
+ nil)))
+
+(defcustom package-get-require-signed-base-updates nil
+ "*If non-nil, try to verify the package index database via PGP.
+
+If nil, no PGP verification is done. If the package index database
+entries are not PGP signed and this variable is non-nil, require user
+confirmation to continue with the package-get procedure."
+ :type 'boolean
+ :group 'package-get)
+
+(defvar package-entries-are-signed nil
+ "Non-nil when the package index file has been PGP signed.")
+
+(defvar package-get-continue-update-base nil
+ "Non-nil update the index even if it hasn't been signed.")
+
+(defvar package-get-was-current nil
+ "Non-nil we did our best to fetch a current database.")
+
+;;;###autoload
+(defun package-get-require-base (&optional force-current)
+ "Require that a package-get database has been loaded.
+If the optional FORCE-CURRENT argument or the value of
+`package-get-always-update' is Non-nil, try to update the database
+from a location in `package-get-remote'. Otherwise a local copy is used
+if available and remote access is never done.
+
+Please use FORCE-CURRENT only when the user is explictly dealing with packages
+and remote access is likely in the near future."
+ (setq force-current (or force-current package-get-always-update))
+ (unless (and (boundp 'package-get-base)
+ package-get-base
+ (or (not force-current) package-get-was-current))
+ (package-get-update-base nil force-current))
+ (if (or (not (boundp 'package-get-base))
+ (not package-get-base))
+ (error 'void-variable
+ "Package-get database not loaded")
+ (setq package-get-was-current force-current)))
+
+(defconst package-get-pgp-signed-begin-line "^-----BEGIN PGP SIGNED MESSAGE-----"
+ "Text for start of PGP signed messages.")
+(defconst package-get-pgp-signature-begin-line "^-----BEGIN PGP SIGNATURE-----"
+ "Text for beginning of PGP signature.")
+(defconst package-get-pgp-signature-end-line "^-----END PGP SIGNATURE-----"
+ "Text for end of PGP signature.")
+
+;;;###autoload
+(defun package-get-update-base-entry (entry)
+ "Update an entry in `package-get-base'."
+ (let ((existing (assq (car entry) package-get-base)))
+ (if existing
+ (setcdr existing (cdr entry))
+ (setq package-get-base (cons entry package-get-base)))))
+
+(defun package-get-locate-file (file &optional nil-if-not-found no-remote)
+ "Locate an existing FILE with respect to `package-get-remote'.
+If FILE is an absolute path or is not found, simply return FILE.
+If optional argument NIL-IF-NOT-FOUND is non-nil, return nil
+if FILE can not be located.
+If NO-REMOTE is non-nil never search remote locations."
+ (if (file-name-absolute-p file)
+ file
+ (let ((site package-get-remote)
+ (expanded nil))
+ (when site
+ (unless (and no-remote (caar (list site)))
+ (let ((expn (package-get-remote-filename (car (list site)) file)))
+ (if (and expn (file-exists-p expn))
+ (setq site nil
+ expanded expn)))))
+ (or expanded
+ (and (not nil-if-not-found)
+ file)))))
+
+(defun package-get-locate-index-file (no-remote)
+ "Locate the package-get index file.
+
+Do not return remote paths if NO-REMOTE is non-nil. If the index
+file doesn't exist in `package-get-package-index-file-location', ask
+the user if one should be created using the index file in core as a
+template."
+ (or (package-get-locate-file package-get-base-filename t no-remote)
+ (if (file-exists-p (expand-file-name package-get-base-filename
+ package-get-package-index-file-location))
+ (expand-file-name package-get-base-filename
+ package-get-package-index-file-location)
+ (if (y-or-n-p (format "No index file, shall I create one in %s? "
+ package-get-package-index-file-location))
+ (progn
+ (save-excursion
+ (set-buffer
+ (find-file-noselect (expand-file-name
+ package-get-base-filename
+ package-get-package-index-file-location)))
+ (let ((coding-system-for-write 'binary))
+ (erase-buffer)
+ (insert-file-contents-literally
+ (locate-data-file package-get-base-filename))
+ (save-buffer (current-buffer))
+ (kill-buffer (current-buffer))))
+ (expand-file-name package-get-base-filename
+ package-get-package-index-file-location))
+ (error 'search-failed
+ "Can't locate a package index file.")))))
+
+(defun package-get-maybe-save-index (filename)
+ "Offer to save the current buffer as the local package index file,
+if different."
+ (let ((location (package-get-locate-index-file t)))
+ (unless (and filename (equal filename location))
+ (unless (and location
+ (equal (md5 (current-buffer))
+ (with-temp-buffer
+ (insert-file-contents-literally location)
+ (md5 (current-buffer)))))
+ (when (not (file-writable-p location))
+ (if (y-or-n-p (format "Sorry, %s is read-only, can I use %s? "
+ location user-init-directory))
+ (setq location (expand-file-name
+ package-get-base-filename
+ package-get-package-index-file-location))
+ (error 'file-error
+ (format "%s is read-only" location))))
+ (when (y-or-n-p (concat "Update package index in " location "? "))
+ (let ((coding-system-for-write 'binary))
+ (write-file location)))))))
+
+;;;###autoload
+(defun package-get-update-base (&optional db-file force-current)
+ "Update the package-get database file with entries from DB-FILE.
+Unless FORCE-CURRENT is non-nil never try to update the database."
+ (interactive
+ (let ((dflt (package-get-locate-index-file nil)))
+ (list (read-file-name "Load package-get database: "
+ (file-name-directory dflt)
+ dflt
+ t
+ (file-name-nondirectory dflt)))))
+ (setq db-file (expand-file-name (or db-file
+ (package-get-locate-index-file
+ (not force-current)))))
+ (if (not (file-exists-p db-file))
+ (error 'file-error
+ (format "Package-get database file `%s' does not exist" db-file)))
+ (if (not (file-readable-p db-file))
+ (error 'file-error
+ (format "Package-get database file `%s' not readable" db-file)))
+ (let ((buf (get-buffer-create "*package database*")))
+ (unwind-protect
+ (save-excursion
+ (set-buffer buf)
+ (erase-buffer buf)
+ (insert-file-contents-literally db-file)
+ (package-get-update-base-from-buffer buf)
+ (if (file-remote-p db-file)
+ (package-get-maybe-save-index db-file)))
+ (kill-buffer buf))))
+
+;; This is here because the `process-error' datum doesn't exist in
+;; 21.4. --SY.
+(define-error 'process-error "Process error")
+
+;;;###autoload
+(defun package-get-update-base-from-buffer (&optional buf)
+ "Update the package-get database with entries from BUFFER.
+BUFFER defaults to the current buffer. This command can be
+used interactively, for example from a mail or news buffer."
+ (interactive)
+ (setq buf (or buf (current-buffer)))
+ (let ((coding-system-for-read 'binary)
+ (coding-system-for-write 'binary)
+ content-beg content-end)
+ (save-excursion
+ (set-buffer buf)
+ (goto-char (point-min))
+ (setq content-beg (point))
+ (setq content-end (save-excursion (goto-char (point-max)) (point)))
+ (when (re-search-forward package-get-pgp-signed-begin-line nil t)
+ (setq content-beg (match-end 0)))
+ (when (re-search-forward package-get-pgp-signature-begin-line nil t)
+ (setq content-end (match-beginning 0))
+ (setq package-entries-are-signed t))
+ (re-search-forward package-get-pgp-signature-end-line nil t)
+ (setq package-get-continue-update-base t)
+ ;; This is a little overkill because the default value of
+ ;; `package-get-require-signed-base-updates' is the return of
+ ;; `package-get-pgp-available-p', but we have to allow for
+ ;; someone explicitly setting
+ ;; `package-get-require-signed-base-updates' to t. --SY
+ (when (and package-get-require-signed-base-updates
+ (package-get-pgp-available-p))
+ (if package-entries-are-signed
+ (let (good-sig)
+ (setq package-get-continue-update-base nil)
+ (autoload 'mc-verify "mc-toplev")
+ (when (mc-verify)
+ (setq good-sig t))
+ (if good-sig
+ (setq package-get-continue-update-base t)
+ (error 'process-error
+ "GnuPG error. Package database not updated")))
+ (if (yes-or-no-p
+ "Package Index is not PGP signed. Continue anyway? ")
+ (setq package-get-continue-update-base t)
+ (setq package-get-continue-update-base nil)
+ (warn "Package database not updated"))))
+ ;; ToDo: We should call package-get-maybe-save-index on the region
+ (when package-get-continue-update-base
+ (package-get-update-base-entries content-beg content-end)
+ (message "Updated package database")))))
+
+(defun package-get-update-base-entries (start end)
+ "Update the package-get database with the entries found between
+START and END in the current buffer."
+ (save-excursion
+ (goto-char start)
+ (if (not (re-search-forward "^(package-get-update-base-entry" nil t))
+ (error 'search-failed
+ "Buffer does not contain package-get database entries"))
+ (beginning-of-line)
+ (let ((count 0))
+ (while (and (< (point) end)
+ (re-search-forward "^(package-get-update-base-entry" nil t))
+ (beginning-of-line)
+ (let ((entry (read (current-buffer))))
+ (if (or (not (consp entry))
+ (not (eq (car entry) 'package-get-update-base-entry)))
+ (error 'syntax-error
+ "Invalid package-get database entry found"))
+ (package-get-update-base-entry
+ (car (cdr (car (cdr entry)))))
+ (setq count (1+ count))))
+ (message "Got %d package-get database entries" count))))
+
+;;;###autoload
+(defun package-get-save-base (file)
+ "Write the package-get database to FILE.
+
+Note: This database will be unsigned of course."
+ (interactive "FSave package-get database to: ")
+ (package-get-require-base t)
+ (let ((buf (get-buffer-create "*package database*")))
+ (unwind-protect
+ (save-excursion
+ (set-buffer buf)
+ (erase-buffer buf)
+ (goto-char (point-min))
+ (let ((entries package-get-base) entry plist)
+ (insert ";; Package Index file -- Do not edit manually.\n")
+ (insert ";;;@@@\n")
+ (while entries
+ (setq entry (car entries))
+ (setq plist (car (cdr entry)))
+ (insert "(package-get-update-base-entry (quote\n")
+ (insert (format "(%s\n" (symbol-name (car entry))))
+ (while plist
+ (insert (format " %s%s %S\n"
+ (if (eq plist (car (cdr entry))) "(" " ")
+ (symbol-name (car plist))
+ (car (cdr plist))))
+ (setq plist (cdr (cdr plist))))
+ (insert "))\n))\n;;;@@@\n")
+ (setq entries (cdr entries))))
+ (insert ";; Package Index file ends here\n")
+ (write-region (point-min) (point-max) file))
+ (kill-buffer buf))))
+
+(defun package-get-interactive-package-query (get-version package-symbol)
+ "Perform interactive querying for package and optional version.
+Query for a version if GET-VERSION is non-nil. Return package name as
+a symbol instead of a string if PACKAGE-SYMBOL is non-nil.
+The return value is suitable for direct passing to `interactive'."
+ (package-get-require-base t)
+ (let ((table (mapcar #'(lambda (item)
+ (let ((name (symbol-name (car item))))
+ (cons name name)))
+ package-get-base))
+ package package-symbol default-version version)
+ (save-window-excursion
+ (setq package (completing-read "Package: " table nil t))
+ (setq package-symbol (intern package))
+ (if get-version
+ (progn
+ (setq default-version
+ (package-get-info-prop
+ (package-get-info-version
+ (package-get-info-find-package package-get-base
+ package-symbol) nil)
+ 'version))
+ (while (string=
+ (setq version (read-string "Version: " default-version))
+ ""))
+ (if package-symbol
+ (list package-symbol version)
+ (list package version)))
+ (if package-symbol
+ (list package-symbol)
+ (list package))))))
+
+;;;###autoload
+(defun package-get-delete-package (package &optional pkg-topdir)
+ "Delete an installation of PACKAGE below directory PKG-TOPDIR.
+PACKAGE is a symbol, not a string.
+This is just an interactive wrapper for `package-admin-delete-binary-package'."
+ (interactive (package-get-interactive-package-query nil t))
+ (package-admin-delete-binary-package package pkg-topdir))
+
+;;;###autoload
+(defun package-get-update-all ()
+ "Fetch and install the latest versions of all currently installed packages."
+ (interactive)
+ (package-get-require-base t)
+ ;; Load a fresh copy
+ (catch 'exit
+ (mapcar (lambda (pkg)
+ (if (not (package-get (car pkg) nil 'never))
+ (throw 'exit nil))) ;; Bail out if error detected
+ packages-package-list))
+ (package-net-update-installed-db))
+
+;;;###autoload
+(defun package-get-all (package version &optional fetched-packages install-dir)
+ "Fetch PACKAGE with VERSION and all other required packages.
+Uses `package-get-base' to determine just what is required and what
+package provides that functionality. If VERSION is nil, retrieves
+latest version. Optional argument FETCHED-PACKAGES is used to keep
+track of packages already fetched. Optional argument INSTALL-DIR,
+if non-nil, specifies the package directory where fetched packages
+should be installed.
+
+Returns nil upon error."
+ (interactive (package-get-interactive-package-query t nil))
+ (let* ((the-package (package-get-info-find-package package-get-base
+ package))
+ (this-package (package-get-info-version
+ the-package version))
+ (this-requires (package-get-info-prop this-package 'requires)))
+ (catch 'exit
+ (setq version (package-get-info-prop this-package 'version))
+ (unless (package-get-installedp package version)
+ (if (not (package-get package version nil install-dir))
+ (progn
+ (setq fetched-packages nil)
+ (throw 'exit nil))))
+ (setq fetched-packages
+ (append (list package)
+ (package-get-info-prop this-package 'provides)
+ fetched-packages))
+ ;; grab everything that this package requires plus recursively
+ ;; grab everything that the requires require. Keep track
+ ;; in `fetched-packages' the list of things provided -- this
+ ;; keeps us from going into a loop
+ (while this-requires
+ (if (not (member (car this-requires) fetched-packages))
+ (let* ((reqd-package (package-get-package-provider
+ (car this-requires) t))
+ (reqd-version (cadr reqd-package))
+ (reqd-name (car reqd-package)))
+ (if (null reqd-name)
+ (error 'search-failed
+ (format "Unable to find a provider for %s"
+ (car this-requires))))
+ (if (not (setq fetched-packages
+ (package-get-all reqd-name reqd-version
+ fetched-packages
+ install-dir)))
+ (throw 'exit nil))))
+ (setq this-requires (cdr this-requires))))
+ fetched-packages))
+
+;;;###autoload
+(defun package-get-dependencies (packages)
+ "Compute dependencies for PACKAGES.
+Uses `package-get-base' to determine just what is required and what
+package provides that functionality. Returns the list of packages
+required by PACKAGES."
+ (package-get-require-base t)
+ (let ((orig-packages packages)
+ dependencies provided)
+ (while packages
+ (let* ((package (car packages))
+ (the-package (package-get-info-find-package
+ package-get-base package))
+ (this-package (package-get-info-version
+ the-package nil))
+ (this-requires (package-get-info-prop this-package 'requires))
+ (new-depends (set-difference
+ (mapcar
+ #'(lambda (reqd)
+ (let* ((reqd-package (package-get-package-provider reqd))
+ (reqd-name (car reqd-package)))
+ (if (null reqd-name)
+ (error 'search-failed
+ (format "Unable to find a provider for %s" reqd)))
+ reqd-name))
+ this-requires)
+ dependencies))
+ (this-provides (package-get-info-prop this-package 'provides)))
+ (setq dependencies
+ (union dependencies new-depends))
+ (setq provided
+ (union provided (union (list package) this-provides)))
+ (setq packages
+ (union new-depends (cdr packages)))))
+ (set-difference dependencies orig-packages)))
+
+(defun package-get-load-package-file (lispdir file)
+ (let (pathname)
+ (setq pathname (expand-file-name file lispdir))
+ (condition-case err
+ (progn
+ (load pathname t)
+ t)
+ (t
+ (message "Error loading package file \"%s\" %s!" pathname err)
+ nil))
+ ))
+
+(defun package-get-init-package (lispdir)
+ "Initialize the package.
+This really assumes that the package has never been loaded. Updating
+a newer package can cause problems, due to old, obsolete functions in
+the old package.
+
+Return `t' upon complete success, `nil' if any errors occurred."
+ (progn
+ (if (and lispdir
+ (file-accessible-directory-p lispdir))
+ (progn
+ ;; Add lispdir to load-path if it doesn't already exist.
+ ;; NOTE: this does not take symlinks, etc., into account.
+ (add-to-list 'load-path (file-name-as-directory lispdir))
+ (if (not (package-get-load-package-file lispdir "auto-autoloads"))
+ (package-get-load-package-file lispdir "_pkg"))
+ t)
+ nil)))
+
+;;;###autoload
+(defun package-get-info (package information &optional arg remote)
+ "Get information about a package.
+
+Quite similar to `package-get-info-prop', but can retrieve a lot more
+information.
+
+Argument PACKAGE is the name of an XEmacs package (a symbol). It must
+be a valid package, ie, a member of `package-get-base'.
+
+Argument INFORMATION is a symbol that can be any one of:
+
+ standards-version Package system version (not used).
+ version Version of the XEmacs package.
+ author-version The upstream version of the package.
+ date The date the package was last modified.
+ build-date The date the package was last built.
+ maintainer The maintainer of the package.
+ distribution Will always be \"xemacs\" (not used).
+ priority \"low\", \"medium\", or \"high\" (not used).
+ category Either \"standard\", \"mule\", or \"unsupported\"..
+ dump Is the package dumped (not used).
+ description A description of the package.
+ filename The filename of the binary tarball of the package.
+ md5sum The md5sum of filename.
+ size The size in bytes of filename.
+ provides A list of symbols that this package provides.
+ requires A list of packages that this package requires.
+ type Can be either \"regular\" or \"single-file\".
+
+If optional argument ARG is non-nil insert INFORMATION into current
+buffer at point. This is very useful for doing things like inserting
+a maintainer's email address into a mail buffer.
+
+If optional argument REMOTE is non-nil use a package list from a
+remote site. For this to work `package-get-remote' must be non-nil.
+
+If this function is called interactively it will display INFORMATION
+in the minibuffer."
+ (interactive "SPackage: \nSInfo: \nP")
+ (if remote
+ (package-get-require-base t)
+ (package-get-require-base nil))
+ (let ((all-pkgs package-get-base)
+ info)
+ (loop until (equal package (caar all-pkgs))
+ do (setq all-pkgs (cdr all-pkgs))
+ do (if (not all-pkgs)
+ (error 'invalid-argument
+ (format "%s is not a valid package" package))))
+ (setq info (plist-get (cadar all-pkgs) information))
+ (if (interactive-p)
+ (if arg
+ (insert (format "%s" info))
+ (if (package-get-key package :version)
+ (message "%s" info)
+ (message "%s (Package: %s is not installed)" info package)))
+ (if arg
+ (insert (format "%s" info))
+ info))))
+
+;;;###autoload
+(defun package-get-list-packages-where (item field &optional arg)
+ "Return a list of packages that fulfill certain criteria.
+
+Argument ITEM, a symbol, is what you want to check for. ITEM must be a
+symbol even when it doesn't make sense to be a symbol \(think, searching
+maintainers, descriptions, etc\). The function will convert the symbol
+to a string if a string is what is needed. The downside to this is that
+ITEM can only ever be a single word.
+
+Argument FIELD, a symbol, is the field to check in. You can specify
+any one of:
+
+ Field Sane or Allowable Content
+ description any single word
+ category `standard' or `mule'
+ maintainer any single word
+ build-date yyyy-mm-dd
+ date yyyy-mm-dd
+ type `regular' or `single'
+ requires any package name
+ provides any symbol
+ priority `low', `medium', or `high'
+
+Optional Argument ARG, a prefix arg, insert output at point in the
+current buffer."
+ (interactive "SList packages that have (item): \nSin their (field): \nP")
+ (package-get-require-base nil)
+ (let ((pkgs package-get-base)
+ (strings '(description category maintainer build-date date))
+ (symbols '(type requires provides priority))
+ results)
+ (cond ((memq field strings)
+ (setq item (symbol-name item))
+ (while pkgs
+ (when (string-match item (package-get-info (caar pkgs) field))
+ (setq results (push (caar pkgs) results)))
+ (setq pkgs (cdr pkgs))))
+ ((memq field symbols)
+ (if (or (eq field 'type)
+ (eq field 'priority))
+ (while pkgs
+ (when (eq item (package-get-info (caar pkgs) field))
+ (setq results (push (caar pkgs) results)))
+ (setq pkgs (cdr pkgs)))
+ (while pkgs
+ (when (memq item (package-get-info (caar pkgs) field))
+ (setq results (push (caar pkgs) results)))
+ (setq pkgs (cdr pkgs)))))
+ (t
+ (error 'wrong-type-argument field)))
+ (if (interactive-p)
+ (if arg
+ (insert (format "%s" results))
+ (message "%s" results)))
+ results))
+
+;;;###autoload
+(defun package-get (package &optional version conflict install-dir)
+ "Fetch PACKAGE from remote site.
+Optional arguments VERSION indicates which version to retrieve, nil
+means most recent version. CONFLICT indicates what happens if the
+package is already installed. Valid values for CONFLICT are:
+'always always retrieve the package even if it is already installed
+'never do not retrieve the package if it is installed.
+INSTALL-DIR, if non-nil, specifies the package directory where
+fetched packages should be installed.
+
+The value of `package-get-base' is used to determine what files should
+be retrieved. The value of `package-get-remote' is used to determine
+where a package should be retrieved from.
+
+Once the package is retrieved, its md5 checksum is computed. If that
+sum does not match that stored in `package-get-base' for this version
+of the package, an error is signalled.
+
+Returns `t' upon success, the symbol `error' if the package was
+successfully installed but errors occurred during initialization, or
+`nil' upon error."
+ (interactive (package-get-interactive-package-query nil t))
+ (catch 'skip-update
+ (let* ((this-package
+ (package-get-info-version
+ (package-get-info-find-package package-get-base
+ package) version))
+ (latest (package-get-info-prop this-package 'version))
+ (installed (package-get-key package :version))
+ (found nil)
+ (search-dir package-get-remote)
+ (base-filename (package-get-info-prop this-package 'filename))
+ (package-status t)
+ filenames full-package-filename)
+ (if (and (equal (package-get-info package 'category) "mule")
+ (not (featurep 'mule)))
+ (error 'invalid-state
+ "Mule packages can't be installed with a non-Mule XEmacs"))
+ (if (null this-package)
+ (if package-get-remote
+ (error 'search-failed
+ (format "Couldn't find package %s with version %s"
+ package version))
+ (error 'syntax-error
+ "No download site or local package location specified.")))
+ (if (null base-filename)
+ (error 'syntax-error
+ (format "No filename associated with package %s, version %s"
+ package version)))
+ (setq install-dir (package-admin-get-install-dir package install-dir))
+
+ ;; If they asked for the latest using version=nil, don't get an older
+ ;; version than we already have.
+ (if installed
+ (if (> (if (stringp installed)
+ (string-to-number installed)
+ installed)
+ (if (stringp latest)
+ (string-to-number latest)
+ latest))
+ (if (not (null version))
+ (warn "Installing %s package version %s, you had a newer version %s"
+ package latest installed)
+ (warn "Skipping %s package, you have a newer version %s"
+ package installed)
+ (throw 'skip-update t))))
+
+ ;; Contrive a list of possible package filenames.
+ ;; Ugly. Is there a better way to do this?
+ (setq filenames (cons base-filename nil))
+ (if (string-match "^\\(..*\\)\.tar\.gz$" base-filename)
+ (setq filenames (append filenames
+ (list (concat (match-string 1 base-filename)
+ ".tgz")))))
+
+ (setq version latest)
+ (unless (and (eq conflict 'never)
+ (package-get-installedp package version))
+ ;; Find the package from the search list in package-get-remote
+ ;; and copy it into the staging directory. Then validate
+ ;; the checksum. Finally, install the package.
+ (catch 'done
+ (let (search-filenames host dir current-filename dest-filename)
+ ;; In each search directory ...
+ (when search-dir
+ (setq host (car search-dir)
+ dir (car (cdr search-dir))
+ search-filenames filenames)
+
+ ;; Look for one of the possible package filenames ...
+ (while search-filenames
+ (setq current-filename (car search-filenames)
+ dest-filename (package-get-staging-dir current-filename))
+ (cond
+ ;; No host means look on the current system.
+ ((null host)
+ (setq full-package-filename
+ (substitute-in-file-name
+ (expand-file-name current-filename
+ (file-name-as-directory dir)))))
+
+ ;; If it's already on the disk locally, and the size is
+ ;; correct
+ ((and (file-exists-p dest-filename)
+ (eq (nth 7 (file-attributes dest-filename))
+ (package-get-info package 'size)))
+ (setq full-package-filename dest-filename))
+
+ ;; If the file exists on the remote system ...
+ ((file-exists-p (package-get-remote-filename
+ search-dir current-filename))
+ ;; Get it
+ (setq full-package-filename dest-filename)
+ (message "Retrieving package `%s' ..."
+ current-filename)
+ (sit-for 0)
+ (copy-file (package-get-remote-filename search-dir
+ current-filename)
+ full-package-filename t)))
+
+ ;; If we found it, we're done.
+ (if (and full-package-filename
+ (file-exists-p full-package-filename))
+ (throw 'done nil))
+ ;; Didn't find it. Try the next possible filename.
+ (setq search-filenames (cdr search-filenames))))))
+
+ (if (or (not full-package-filename)
+ (not (file-exists-p full-package-filename)))
+ (if package-get-remote
+ (error 'search-failed
+ (format "Unable to find file %s" base-filename))
+ (error 'syntax-error
+ "No download sites or local package locations specified.")))
+ ;; Validate the md5 checksum
+ ;; Doing it with XEmacs removes the need for an external md5 program
+ (message "Validating checksum for `%s'..." package) (sit-for 0)
+ (with-temp-buffer
+ (insert-file-contents-literally full-package-filename)
+ (if (not (string= (md5 (current-buffer))
+ (package-get-info-prop this-package
+ 'md5sum)))
+ (progn
+ (delete-file full-package-filename)
+ (error 'process-error
+ (format "Package %s does not match md5 checksum %s has been deleted"
+ base-filename full-package-filename)))))
+
+ (package-admin-delete-binary-package package install-dir)
+
+ (message "Installing package `%s' ..." package) (sit-for 0)
+ (let ((status
+ (package-admin-add-binary-package full-package-filename
+ install-dir)))
+ (if (= status 0)
+ (progn
+ ;; clear messages so that only messages from
+ ;; package-get-init-package are seen, below.
+ (clear-message)
+ (if (package-get-init-package (package-admin-get-lispdir
+ install-dir package))
+ (progn
+ (run-hook-with-args 'package-install-hook package install-dir)
+ (message "Added package `%s'" package)
+ (sit-for 0))
+ (progn
+ ;; display message only if there isn't already one.
+ (if (not (current-message))
+ (progn
+ (message "Added package `%s' (errors occurred)"
+ package)
+ (sit-for 0)))
+ (if package-status
+ (setq package-status 'errors)))))
+ (message "Installation of package %s failed." base-filename)
+ (sit-for 0)
+ (switch-to-buffer package-admin-temp-buffer)
+ (delete-file full-package-filename)
+ (setq package-status nil)))
+ (setq found t))
+ (if (and found package-get-remove-copy)
+ (delete-file full-package-filename))
+ package-status)))
+
+(defun package-get-info-find-package (which name)
+ "Look in WHICH for the package called NAME and return all the info
+associated with it. See `package-get-base' for info on the format
+returned.
+
+ To access fields returned from this, use
+`package-get-info-version' to return information about particular a
+version. Use `package-get-info-find-prop' to find particular property
+from a version returned by `package-get-info-version'."
+ (interactive "xPackage list: \nsPackage Name: ")
+ (if which
+ (if (eq (caar which) name)
+ (cdar which)
+ (if (cdr which)
+ (package-get-info-find-package (cdr which) name)))))
+
+(defun package-get-info-version (package version)
+ "In PACKAGE, return the plist associated with a particular VERSION of the
+ package. PACKAGE is typically as returned by
+ `package-get-info-find-package'. If VERSION is nil, then return the
+ first (aka most recent) version. Use `package-get-info-find-prop'
+ to retrieve a particular property from the value returned by this."
+ (interactive (package-get-interactive-package-query t t))
+ (while (and version package (not (string= (plist-get (car package) 'version) version)))
+ (setq package (cdr package)))
+ (if package (car package)))
+
+(defun package-get-info-prop (package-version property)
+ "In PACKAGE-VERSION, return the value associated with PROPERTY.
+PACKAGE-VERSION is typically returned by `package-get-info-version'
+and PROPERTY is typically (although not limited to) one of the
+following:
+
+version - version of this package
+provides - list of symbols provided
+requires - list of symbols that are required.
+ These in turn are provided by other packages.
+size - size of the bundled package
+md5sum - computed md5 checksum"
+ (interactive "xPackage Version: \nSProperty")
+ (plist-get package-version property))
+
+(defun package-get-info-version-prop (package-list package version property)
+ "In PACKAGE-LIST, search for PACKAGE with this VERSION and return
+ PROPERTY value."
+ (package-get-info-prop
+ (package-get-info-version
+ (package-get-info-find-package package-list package) version) property))
+
+(defun package-get-staging-dir (filename)
+ "Return a good place to stash FILENAME when it is retrieved.
+Use `package-get-dir' for directory to store stuff.
+Creates `package-get-dir' if it doesn't exist."
+ (interactive "FPackage filename: ")
+ (if (not (file-exists-p package-get-dir))
+ (make-directory package-get-dir))
+ (expand-file-name
+ (file-name-nondirectory (or (and (fboundp 'efs-ftp-path)
+ (nth 2 (efs-ftp-path filename)))
+ filename))
+ (file-name-as-directory package-get-dir)))
+
+(defun package-get-remote-filename (search filename)
+ "Return FILENAME as a remote filename.
+It first checks if FILENAME already is a remote filename. If it is
+not, then it uses the (car search) as the remote site-name and the (cadr
+search) as the remote-directory and concatenates filename. In other
+words
+ site-name:remote-directory/filename.
+
+If (car search) is nil, (cadr search is interpreted as a local directory).
+"
+ (if (file-remote-p filename)
+ filename
+ (let ((dir (cadr search)))
+ (concat (when (car search)
+ (concat
+ (if (string-match "@" (car search))
+ "/"
+ "/anonymous@")
+ (car search) ":"))
+ (if (string-match "/$" dir)
+ dir
+ (concat dir "/"))
+ filename))))
+
+(defun package-get-installedp (package version)
+ "Determine if PACKAGE with VERSION has already been installed.
+I'm not sure if I want to do this by searching directories or checking
+some built in variables. For now, use packages-package-list."
+ ;; Use packages-package-list which contains name and version
+ (equal (plist-get
+ (package-get-info-find-package packages-package-list
+ package) ':version)
+ (if (floatp version)
+ version
+ (string-to-number version))))
+
+;;;###autoload
+(defun package-get-package-provider (sym &optional force-current)
+ "Search for a package that provides SYM and return the name and
+ version. Searches in `package-get-base' for SYM. If SYM is a
+ consp, then it must match a corresponding (provide (SYM VERSION)) from
+ the package.
+
+If FORCE-CURRENT is non-nil make sure the database is up to date. This might
+lead to Emacs accessing remote sites."
+ (interactive "SSymbol: ")
+ (package-get-require-base force-current)
+ (let ((packages package-get-base)
+ (done nil)
+ (found nil))
+ (while (and (not done) packages)
+ (let* ((this-name (caar packages))
+ (this-package (cdr (car packages)))) ;strip off package name
+ (while (and (not done) this-package)
+ (if (or (eq this-name sym)
+ (eq (cons this-name
+ (package-get-info-prop (car this-package) 'version))
+ sym)
+ (member sym
+ (package-get-info-prop (car this-package) 'provides)))
+ (progn (setq done t)
+ (setq found
+ (list (caar packages)
+ (package-get-info-prop (car this-package) 'version))))
+ (setq this-package (cdr this-package)))))
+ (setq packages (cdr packages)))
+ (when (interactive-p)
+ (if found
+ (message "%S" found)
+ (message "No appropriate package found")))
+ found))
+
+(defun package-get-ever-installed-p (pkg &optional notused)
+ (string-match "-package$" (symbol-name pkg))
+ (custom-initialize-set
+ pkg
+ (if (package-get-info-find-package
+ packages-package-list
+ (intern (substring (symbol-name pkg) 0 (match-beginning 0))))
+ t)))
+
+(provide 'package-get)
+;;; package-get.el ends here
projects / chise / xemacs-chise.git- / blobdiff