Mercurial > hg > xemacs-beta
annotate lisp/package-admin.el @ 5067:7d7ae8db0341
add functions `stable-union' and `stable-intersection' to do stable set operations
-------------------- ChangeLog entries follow: --------------------
lisp/ChangeLog addition:
2010-02-22 Ben Wing <ben@xemacs.org>
* cl-seq.el:
* cl-seq.el (stable-union): New.
* cl-seq.el (stable-intersection): New.
New functions to do stable set operations, i.e. preserve the order
of the elements in the argument lists, and prefer LIST1 over LIST2
when ordering the combined result. The result looks as much like
LIST1 as possible, followed (in the case of `stable-union') by
any necessary elements from LIST2, in order. This is contrary to
`union' and `intersection', which are not required to be order-
preserving and are not -- they prefer LIST2 and output results in
backwards order.
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Mon, 22 Feb 2010 21:23:02 -0600 |
| parents | 3c92890f3750 |
| children | 308d34e9f07d |
| rev | line source |
|---|---|
| 428 | 1 ;;; package-admin.el --- Installation and Maintenance of XEmacs packages |
| 2 | |
| 3 ;; Copyright (C) 1997 by Free Software Foundation, Inc. | |
| 1410 | 4 ;; Copyright (C) 2003, Steve Youngs. |
| 428 | 5 |
| 6 ;; Author: SL Baur <steve@xemacs.org> | |
| 7 ;; Keywords: internal | |
| 8 | |
| 9 ;; This file is part of XEmacs. | |
| 10 | |
| 11 ;; XEmacs is free software; you can redistribute it and/or modify it | |
| 12 ;; under the terms of the GNU General Public License as published by | |
| 13 ;; the Free Software Foundation; either version 2, or (at your option) | |
| 14 ;; any later version. | |
| 15 | |
| 16 ;; XEmacs is distributed in the hope that it will be useful, but | |
| 17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 19 ;; General Public License for more details. | |
| 20 | |
| 21 ;; You should have received a copy of the GNU General Public License | |
| 22 ;; along with XEmacs; see the file COPYING. If not, write to the Free | |
| 23 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
| 24 ;; 02111-1307, USA. | |
| 25 | |
| 26 ;;; Synched up with: Not in FSF | |
| 27 | |
| 28 ;;; Commentary: | |
| 29 | |
| 30 ;; First pass at lisp front end to package maintenance. | |
| 31 | |
| 32 ;;; Code: | |
| 33 | |
| 34 (require 'config) | |
| 35 | |
| 36 (defvar package-admin-xemacs (concat invocation-directory invocation-name) | |
| 37 "Location of XEmacs binary to use.") | |
| 38 | |
| 39 (defvar package-admin-temp-buffer "*Package Output*" | |
| 40 "Temporary buffer where output of backend commands is saved.") | |
| 41 | |
| 42 (defvar package-admin-install-function (if (eq system-type 'windows-nt) | |
| 43 'package-admin-install-function-mswindows | |
| 44 'package-admin-default-install-function) | |
| 45 "The function to call to install a package. | |
| 444 | 46 Three args are passed: FILENAME PKG-DIR BUFFER |
| 428 | 47 Install package FILENAME into directory PKG-DIR, with any messages output |
| 444 | 48 to buffer BUFFER.") |
| 428 | 49 |
| 50 (defvar package-admin-error-messages '( | |
| 51 "No space left on device" | |
| 52 "No such file or directory" | |
| 53 "Filename too long" | |
| 54 "Read-only file system" | |
| 55 "File too large" | |
| 56 "Too many open files" | |
| 57 "Not enough space" | |
| 58 "Permission denied" | |
| 59 "Input/output error" | |
| 60 "Out of memory" | |
| 61 "Unable to create directory" | |
| 62 "Directory checksum error" | |
| 63 "Cannot exclusively open file" | |
| 64 "corrupted file" | |
| 65 "incomplete .* tree" | |
| 66 "Bad table" | |
| 67 "corrupt input" | |
| 68 "invalid compressed data" | |
| 69 "too many leaves in Huffman tree" | |
| 70 "not a valid zip file" | |
| 71 "first entry not deflated or stored" | |
| 72 "encrypted file --" | |
| 73 "unexpected end of file" | |
| 74 ) | |
| 75 "Regular expressions of possible error messages. | |
| 76 After each package extraction, the `package-admin-temp-buffer' buffer is | |
| 77 scanned for these messages. An error code is returned if one of these are | |
| 78 found. | |
| 79 | |
| 80 This is awful, but it exists because error return codes aren't reliable | |
| 81 under MS Windows.") | |
| 82 | |
| 83 (defvar package-admin-tar-filename-regexps | |
| 84 '( | |
| 85 ;; GNU tar: | |
| 86 ;; drwxrwxr-x john/doe 123 1997-02-18 15:48 pathname | |
| 87 "\\S-+\\s-+[-a-z0-9_/]+\\s-+[0-9]+\\s-+[-0-9]+\\s-+[0-9:]+\\s-+\\(\\S-.*\\)" | |
| 88 ;; HP-UX & SunOS tar: | |
| 89 ;; rwxrwxr-x 501/501 123 Feb 18 15:46 1997 pathname | |
| 90 ;; Solaris tar (phooey!): | |
| 91 ;; rwxrwxr-x501/501 123 Feb 18 15:46 1997 pathname | |
| 92 ;; AIX tar: | |
| 93 ;; -rw-r--r-- 147 1019 32919 Mar 26 12:00:09 1992 pathname | |
| 94 "\\S-+\\s-*[-a-z0-9_]+[/ ][-a-z0-9_]+\\s-+[0-9]+\\s-+[a-z][a-z][a-z]\\s-+[0-9]+\\s-+[0-9:]+\\s-+[0-9]+\\s-+\\(\\S-.*\\)" | |
| 95 | |
| 96 ;; djtar: | |
| 97 ;; drwx Aug 31 02:01:41 1998 123 pathname | |
| 98 "\\S-+\\s-+[a-z][a-z][a-z]\\s-+[0-9]+\\s-+[0-9:]+\\s-+[0-9]+\\s-+[0-9]+\\s-+\\(\\S-.*\\)" | |
| 99 | |
| 100 ) | |
| 101 "List of regexps to use to search for tar filenames. | |
| 102 Note that \"\\(\" and \"\\)\" must be used to delimit the pathname (as | |
| 103 match #1). Don't put \"^\" to match the beginning of the line; this | |
| 104 is already implicit, as `looking-at' is used. Filenames can, | |
| 105 unfortunately, contain spaces, so be careful in constructing any | |
| 106 regexps.") | |
| 107 | |
| 628 | 108 (defvar package-install-hook nil |
| 109 "*List of hook functions to be called when a new package is successfully | |
| 110 installed. The hook function is passed two arguments: the package name, and | |
| 111 the install directory.") | |
| 112 | |
| 113 (defvar package-delete-hook nil | |
| 114 "*List of hook functions to be called when a package is deleted. The | |
| 115 hook is called *before* the package is deleted. The hook function is passed | |
| 116 two arguments: the package name, and the install directory.") | |
| 117 | |
| 444 | 118 (defun package-admin-install-function-mswindows (file pkg-dir buffer) |
| 119 "Install function for mswindows." | |
| 428 | 120 (let ((default-directory (file-name-as-directory pkg-dir))) |
| 121 (unless (file-directory-p default-directory) | |
| 122 (make-directory default-directory t)) | |
| 444 | 123 (call-process "minitar" nil buffer t file))) |
| 428 | 124 |
| 444 | 125 (defun package-admin-default-install-function (filename pkg-dir buffer) |
| 428 | 126 "Default function to install a package. |
| 127 Install package FILENAME into directory PKG-DIR, with any messages output | |
| 444 | 128 to BUFFER." |
| 428 | 129 (let* ((pkg-dir (file-name-as-directory pkg-dir)) |
| 130 (default-directory pkg-dir) | |
| 444 | 131 (filename (expand-file-name filename))) |
| 428 | 132 (unless (file-directory-p pkg-dir) |
| 133 (make-directory pkg-dir t)) | |
| 134 ;; Don't assume GNU tar. | |
| 444 | 135 (if (shell-command (concat "gunzip -c " filename " | tar xvf -") buffer) |
| 428 | 136 0 |
| 1365 | 137 1))) |
| 428 | 138 |
| 1378 | 139 ;; A few things needed by the following 2 functions. |
| 140 (eval-when-compile | |
| 141 (require 'packages) | |
| 142 (autoload 'package-get-info "package-get") | |
| 143 (autoload 'paths-decode-directory-path "find-paths") | |
| 144 (defvar package-get-install-to-user-init-directory)) | |
| 145 | |
| 146 (defun package-admin-find-top-directory (type &optional user-dir) | |
| 147 "Return the top level directory for a package. | |
| 148 | |
| 149 Argument TYPE is a symbol that determines the type of package we're | |
| 150 trying to find a directory for. | |
| 151 | |
| 152 Optional Argument USER-DIR if non-nil use directories off | |
| 3179 | 153 `early-package-directories'. |
| 1378 | 154 |
| 155 If we still can't find a suitable directory, return nil. | |
| 156 | |
| 157 Possible values for TYPE are: | |
| 158 | |
| 159 std == For \"standard\" packages that go in '/xemacs-packages/' | |
| 160 mule == For \"mule\" packages that go in '/mule-packages/' | |
| 161 site == For \"unsupported\" packages that go in '/site-packages/' | |
| 3179 | 162 " |
| 163 (let* ((hierarchies late-package-hierarchies) | |
| 164 | |
| 165 (hierarchy-suffix | |
| 166 (file-name-as-directory | |
| 167 (cond | |
| 168 ((eq type 'std) "xemacs-packages") | |
| 169 ((eq type 'mule) "mule-packages") | |
| 170 ((eq type 'site) "site-packages")))) | |
| 171 (suffix-length (length hierarchy-suffix)) | |
| 1378 | 172 top-dir) |
| 3179 | 173 |
| 174 (if user-dir | |
| 175 (expand-file-name hierarchy-suffix | |
| 176 (if configure-early-package-directories | |
| 177 (car configure-early-package-directories) | |
| 178 user-init-directory)) | |
| 179 | |
| 180 (while hierarchies | |
| 181 (if (string-equal (substring (car hierarchies) (- suffix-length)) | |
| 182 hierarchy-suffix) | |
| 183 (setq top-dir (car hierarchies))) | |
| 184 (setq hierarchies (cdr hierarchies))) | |
| 185 top-dir))) | |
| 186 | |
| 1378 | 187 |
| 188 (defun package-admin-get-install-dir (package &optional pkg-dir) | |
| 189 "Find a suitable installation directory for a package. | |
| 190 | |
| 191 Argument PACKAGE is the package to find a installation directory for. | |
| 192 Optional Argument PKG-DIR, if non-nil is a directory to use for | |
| 193 installation. | |
| 194 | |
| 195 If PKG-DIR is non-nil and writable, return that. Otherwise check to | |
| 196 see if the PACKAGE is already installed and return that location, if | |
| 197 it is writable. Finally, fall back to the `user-init-directory' if | |
| 198 all else fails. As a side effect of installing packages under | |
| 2456 | 199 `user-init-directory' these packages become part of `early-package-hierarchies'." |
| 1378 | 200 ;; If pkg-dir specified, return that if writable. |
| 201 (if (and pkg-dir | |
| 202 (file-writable-p (directory-file-name pkg-dir))) | |
| 428 | 203 pkg-dir |
| 1378 | 204 ;; If the user want her packages under ~/.xemacs/, do so. |
| 205 (let ((type (package-get-info package 'category))) | |
| 206 (if package-get-install-to-user-init-directory | |
| 207 (progn | |
| 208 (cond ((equal type "standard") | |
| 209 (setq pkg-dir (package-admin-find-top-directory 'std 'user-dir))) | |
| 210 ((equal type "mule") | |
| 211 (setq pkg-dir (package-admin-find-top-directory 'mule 'user-dir)))) | |
| 212 pkg-dir) | |
| 213 ;; Maybe the package has been installed before, if so, return | |
| 214 ;; that directory. | |
| 215 (let ((package-feature (intern-soft (concat | |
| 216 (symbol-name package) "-autoloads"))) | |
| 217 autoload-dir) | |
| 218 (when (and (not (eq package 'unknown)) | |
| 219 (featurep package-feature) | |
| 220 (setq autoload-dir (feature-file package-feature)) | |
| 221 (setq autoload-dir (file-name-directory autoload-dir)) | |
| 222 (member autoload-dir (append early-package-load-path late-package-load-path))) | |
| 223 ;; Find the corresponding entry in late-package | |
| 224 (setq pkg-dir | |
| 225 (car-safe (member-if (lambda (h) | |
| 226 (string-match (concat "^" (regexp-quote h)) | |
| 227 autoload-dir)) | |
| 2456 | 228 (append (cdr early-package-hierarchies) late-package-hierarchies))))) |
| 1378 | 229 (if (and pkg-dir |
| 230 (file-writable-p (directory-file-name pkg-dir))) | |
| 231 pkg-dir | |
| 232 ;; OK, the package hasn't been previously installed so we need | |
| 233 ;; to guess where it should go. | |
| 234 (cond ((equal type "standard") | |
| 235 (setq pkg-dir (package-admin-find-top-directory 'std))) | |
| 236 ((equal type "mule") | |
| 237 (setq pkg-dir (package-admin-find-top-directory 'mule))) | |
| 238 (t | |
| 1410 | 239 (error 'invalid-operation |
| 240 "Invalid package type"))) | |
| 1378 | 241 (if (and pkg-dir |
| 242 (file-writable-p (directory-file-name pkg-dir))) | |
| 243 pkg-dir | |
| 244 ;; Oh no! Either we still haven't found a suitable | |
| 245 ;; directory, or we can't write to the one we did find. | |
| 246 ;; Drop back to the `user-init-directory'. | |
| 247 (if (y-or-n-p (format "Directory isn't writable, use %s instead? " | |
| 248 user-init-directory)) | |
| 249 (progn | |
| 250 (cond ((equal type "standard") | |
| 251 (setq pkg-dir (package-admin-find-top-directory 'std 'user-dir))) | |
| 252 ((equal type "mule") | |
| 253 (setq pkg-dir (package-admin-find-top-directory 'mule 'user-dir))) | |
| 254 (t | |
| 1410 | 255 (error 'invalid-operation |
| 256 "Invalid package type"))) | |
| 1378 | 257 ;; Turn on `package-get-install-to-user-init-directory' |
| 258 ;; so we don't get asked for each package we try to | |
| 259 ;; install in this session. | |
| 260 (setq package-get-install-to-user-init-directory t) | |
| 261 pkg-dir) | |
| 262 ;; If we get to here XEmacs can't make up its mind and | |
| 263 ;; neither can the user, nothing left to do except barf. :-( | |
| 1410 | 264 (error 'search-failed |
| 265 (format | |
| 266 "Can't find suitable installation directory for package: %s" | |
| 267 package)))))))))) | |
| 428 | 268 |
| 269 (defun package-admin-get-manifest-file (pkg-topdir package) | |
| 270 "Return the name of the MANIFEST file for package PACKAGE. | |
| 271 Note that PACKAGE is a symbol, and not a string." | |
| 1365 | 272 (let ((dir (file-name-as-directory |
| 273 (expand-file-name "pkginfo" pkg-topdir)))) | |
| 274 (expand-file-name (concat "MANIFEST." (symbol-name package)) dir))) | |
| 428 | 275 |
| 276 (defun package-admin-check-manifest (pkg-outbuf pkg-topdir) | |
| 277 "Check for a MANIFEST.<package> file in the package distribution. | |
| 278 If it doesn't exist, create and write one. | |
| 279 PKG-OUTBUF is the buffer that holds the output from `tar', and PKG-TOPDIR | |
| 280 is the top-level directory under which the package was installed." | |
| 1365 | 281 (let ((manifest-buf " *pkg-manifest*") |
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282 (case-fold-search (file-system-ignore-case-p pkg-topdir)) |
| 1365 | 283 regexp package-name pathname regexps) |
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284 (save-excursion ;; Probably redundant. |
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285 (set-buffer (get-buffer pkg-outbuf)) ;; Probably already the current buffer. |
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286 (goto-char (point-min)) |
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287 (setq regexp (concat "\\bpkginfo" |
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288 (char-to-string directory-sep-char) |
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289 "MANIFEST\\...*")) |
| 428 | 290 |
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291 ;; Look for the manifest. |
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292 (if (not (re-search-forward regexp nil t)) |
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293 (progn |
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294 ;; We didn't find a manifest. Make one. |
| 428 | 295 |
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296 ;; Yuk. We weren't passed the package name, and so we have |
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297 ;; to dig for it. Look for it as the subdirectory name below |
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298 ;; "lisp", or "man". |
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299 ;; Here, we don't use a single regexp because we want to search |
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300 ;; the directories for a package name in a particular order. |
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301 (if (catch 'done |
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302 (let ((dirs '("lisp" "man")) |
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303 rexp) |
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304 (while dirs |
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305 (setq rexp (concat "\\b" (car dirs) |
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306 "[\\/]\\([^\\/]+\\)[\//]")) |
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307 (if (re-search-forward rexp nil t) |
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308 (throw 'done t)) |
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309 (setq dirs (cdr dirs))))) |
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310 (progn |
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311 (setq package-name (buffer-substring (match-beginning 1) |
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312 (match-end 1))) |
| 428 | 313 |
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314 ;; Get and erase the manifest buffer |
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315 (setq manifest-buf (get-buffer-create manifest-buf)) |
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316 (buffer-disable-undo manifest-buf) |
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317 (erase-buffer manifest-buf) |
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318 |
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319 ;; Now, scan through the output buffer, looking for |
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320 ;; file and directory names. |
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321 (goto-char (point-min)) |
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322 ;; for each line ... |
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323 (while (< (point) (point-max)) |
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324 (beginning-of-line) |
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325 (setq pathname nil) |
| 428 | 326 |
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327 ;; scan through the regexps, looking for a pathname |
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328 (if (catch 'found-path |
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329 (setq regexps package-admin-tar-filename-regexps) |
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330 (while regexps |
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331 (if (looking-at (car regexps)) |
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332 (progn |
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333 (setq pathname |
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334 (buffer-substring |
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335 (match-beginning 1) |
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336 (match-end 1))) |
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337 (throw 'found-path t))) |
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338 (setq regexps (cdr regexps)))) |
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339 (progn |
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340 ;; found a pathname -- add it to the manifest |
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341 ;; buffer |
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342 (save-excursion |
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343 (set-buffer manifest-buf) |
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344 (goto-char (point-max)) |
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345 (insert pathname "\n")))) |
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346 (forward-line 1)) |
| 428 | 347 |
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348 ;; Processed all lines. |
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349 ;; Now, create the file, pkginfo/MANIFEST.<pkgname> |
| 428 | 350 |
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351 ;; We use `expand-file-name' instead of `concat', |
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352 ;; for portability. |
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353 (setq pathname (expand-file-name "pkginfo" |
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354 pkg-topdir)) |
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355 ;; Create pkginfo, if necessary |
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356 (if (not (file-directory-p pathname)) |
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357 (make-directory pathname)) |
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358 (setq pathname (expand-file-name |
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359 (concat "MANIFEST." package-name) |
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360 pathname)) |
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361 (save-excursion |
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362 (set-buffer manifest-buf) |
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363 ;; Put the files in sorted order |
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364 (if-fboundp 'sort-lines |
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365 (sort-lines nil (point-min) (point-max)) |
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366 (warn "`xemacs-base' not installed, MANIFEST.%s not sorted" |
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367 package-name)) |
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368 ;; Write the file. |
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369 ;; Note that using `write-region' *BYPASSES* any check |
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370 ;; to see if XEmacs is currently editing/visiting the |
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371 ;; file. |
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372 (write-region (point-min) (point-max) pathname)) |
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373 (kill-buffer manifest-buf)))))))) |
| 428 | 374 |
| 375 ;;;###autoload | |
| 376 (defun package-admin-add-binary-package (file &optional pkg-dir) | |
| 377 "Install a pre-bytecompiled XEmacs package into package hierarchy." | |
| 378 (interactive "fPackage tarball: ") | |
| 379 (let ((buf (get-buffer-create package-admin-temp-buffer)) | |
| 380 (status 1) | |
| 1365 | 381 start err-list) |
| 428 | 382 (setq pkg-dir (package-admin-get-install-dir 'unknown pkg-dir)) |
| 383 ;; Ensure that the current directory doesn't change | |
| 384 (save-excursion | |
| 385 (set-buffer buf) | |
| 386 ;; This is not really needed | |
| 387 (setq default-directory (file-name-as-directory pkg-dir)) | |
| 388 (setq case-fold-search t) | |
| 389 (buffer-disable-undo) | |
| 390 (goto-char (setq start (point-max))) | |
| 391 (if (= 0 (setq status (funcall package-admin-install-function | |
| 392 file pkg-dir buf))) | |
| 393 (progn | |
| 394 ;; First, check for errors. | |
| 395 ;; We can't necessarily rely upon process error codes. | |
| 396 (catch 'done | |
| 397 (goto-char start) | |
| 398 (setq err-list package-admin-error-messages) | |
| 399 (while err-list | |
| 400 (if (re-search-forward (car err-list) nil t) | |
| 401 (progn | |
| 402 (setq status 1) | |
| 1365 | 403 (throw 'done nil))) |
| 404 (setq err-list (cdr err-list)))) | |
| 428 | 405 ;; Make sure that the MANIFEST file exists |
| 1365 | 406 (package-admin-check-manifest buf pkg-dir)))) |
| 407 status)) | |
| 428 | 408 |
| 409 (defun package-admin-rmtree (directory) | |
| 410 "Delete a directory and all of its contents, recursively. | |
| 411 This is a feeble attempt at making a portable rmdir." | |
| 412 (setq directory (file-name-as-directory directory)) | |
| 413 (let ((files (directory-files directory nil nil nil t)) | |
| 414 (dirs (directory-files directory nil nil nil 'dirs))) | |
| 415 (while dirs | |
| 416 (if (not (member (car dirs) '("." ".."))) | |
| 417 (let ((dir (expand-file-name (car dirs) directory))) | |
| 418 (condition-case err | |
| 419 (if (file-symlink-p dir) ;; just in case, handle symlinks | |
| 420 (delete-file dir) | |
| 421 (package-admin-rmtree dir)) | |
| 422 (file-error | |
| 423 (message "%s: %s: \"%s\"" (nth 1 err) (nth 2 err) (nth 3 err))))) | |
| 424 (setq dirs (cdr dirs)))) | |
| 425 (while files | |
| 426 (condition-case err | |
| 427 (delete-file (expand-file-name (car files) directory)) | |
| 428 (file-error | |
| 429 (message "%s: %s: \"%s\"" (nth 1 err) (nth 2 err) (nth 3 err)))) | |
| 430 (setq files (cdr files))) | |
| 431 (condition-case err | |
| 432 (delete-directory directory) | |
| 433 (file-error | |
| 434 (message "%s: %s: \"%s\"" (nth 1 err) (nth 2 err) (nth 3 err)))))) | |
| 435 | |
| 436 (defun package-admin-get-lispdir (pkg-topdir package) | |
| 437 (let (package-lispdir) | |
| 438 (if (and (setq package-lispdir (expand-file-name "lisp" pkg-topdir)) | |
| 439 (setq package-lispdir (expand-file-name (symbol-name package) | |
| 440 package-lispdir)) | |
| 441 (file-accessible-directory-p package-lispdir)) | |
| 1365 | 442 package-lispdir))) |
| 428 | 443 |
| 444 (defun package-admin-delete-binary-package (package pkg-topdir) | |
| 445 "Delete a binary installation of PACKAGE below directory PKG-TOPDIR. | |
| 446 PACKAGE is a symbol, not a string." | |
| 1365 | 447 (let (manifest-file package-lispdir dirs file) |
| 428 | 448 (setq pkg-topdir (package-admin-get-install-dir package pkg-topdir)) |
| 449 (setq manifest-file (package-admin-get-manifest-file pkg-topdir package)) | |
| 628 | 450 (run-hook-with-args 'package-delete-hook package pkg-topdir) |
| 428 | 451 (if (file-exists-p manifest-file) |
| 452 (progn | |
| 453 ;; The manifest file exists! Use it to delete the old distribution. | |
| 454 (message "Removing old files for package \"%s\" ..." package) | |
| 455 (sit-for 0) | |
| 1365 | 456 (with-temp-buffer |
| 428 | 457 (buffer-disable-undo) |
| 458 (erase-buffer) | |
| 459 (insert-file-contents manifest-file) | |
| 460 (goto-char (point-min)) | |
| 461 | |
| 462 ;; For each entry in the MANIFEST ... | |
| 463 (while (< (point) (point-max)) | |
| 464 (beginning-of-line) | |
| 465 (setq file (expand-file-name (buffer-substring | |
| 466 (point) | |
| 467 (point-at-eol)) | |
| 468 pkg-topdir)) | |
| 469 (if (file-directory-p file) | |
| 470 ;; Keep a record of each directory | |
| 471 (setq dirs (cons file dirs)) | |
| 472 ;; Delete each file. | |
| 473 ;; Make sure that the file is writable. | |
| 474 ;; (This is important under MS Windows.) | |
| 475 ;; I do not know why it important under MS Windows but | |
| 629 | 476 ;; 1. It bombs out when the file does not exist. This can be condition-cased |
| 428 | 477 ;; 2. If I removed the write permissions, I do not want XEmacs to just ignore them. |
| 478 ;; If it wants to, XEmacs may ask, but that is about all | |
| 479 ;; (set-file-modes file 438) ;; 438 -> #o666 | |
| 480 ;; Note, user might have removed the file! | |
| 481 (condition-case () | |
| 482 (delete-file file) | |
| 444 | 483 (error nil))) ;; We may want to turn the error into a Warning? |
| 428 | 484 (forward-line 1)) |
| 444 | 485 |
| 428 | 486 ;; Delete empty directories. |
| 487 (if dirs | |
| 1365 | 488 (progn |
| 489 (mapc | |
| 490 (lambda (dir) | |
| 491 (condition-case () | |
| 492 (delete-directory dir))) | |
| 493 dirs))) | |
| 428 | 494 ;; Delete the MANIFEST file |
| 495 ;; (set-file-modes manifest-file 438) ;; 438 -> #o666 | |
| 496 ;; Note. Packages can have MANIFEST in MANIFEST. | |
| 497 (condition-case () | |
| 498 (delete-file manifest-file) | |
| 499 (error nil)) ;; Do warning? | |
| 1365 | 500 (message "Removing old files for package \"%s\" ... done" package))) |
| 501 ;; The manifest file doesn't exist. Fallback to just deleting the | |
| 502 ;; package-specific lisp directory, if it exists. | |
| 503 ;; | |
| 504 ;; Delete old lisp directory, if any | |
| 505 ;; Gads, this is ugly. However, we're not supposed to use `concat' | |
| 506 ;; in the name of portability. | |
| 507 (setq package-lispdir (package-admin-get-lispdir pkg-topdir package)) | |
| 1378 | 508 (when package-lispdir |
| 509 (message "Removing old lisp directory \"%s\" ..." package-lispdir) | |
| 510 (sit-for 0) | |
| 511 (package-admin-rmtree package-lispdir) | |
| 512 (message "Removing old lisp directory \"%s\" ... done" package-lispdir))) | |
| 428 | 513 ;; Delete the package from the database of installed packages. |
| 514 (package-delete-name package))) | |
| 515 | |
| 516 (provide 'package-admin) | |
| 517 | |
| 518 ;;; package-admin.el ends here |