| 1 | ;;; gnus-agent.el --- unplugged support for Gnus |
| 2 | |
| 3 | ;; Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, |
| 4 | ;; 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
| 5 | |
| 6 | ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org> |
| 7 | ;; This file is part of GNU Emacs. |
| 8 | |
| 9 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
| 10 | ;; it under the terms of the GNU General Public License as published by |
| 11 | ;; the Free Software Foundation, either version 3 of the License, or |
| 12 | ;; (at your option) any later version. |
| 13 | |
| 14 | ;; GNU Emacs is distributed in the hope that it will be useful, |
| 15 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | ;; GNU General Public License for more details. |
| 18 | |
| 19 | ;; You should have received a copy of the GNU General Public License |
| 20 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
| 21 | |
| 22 | ;;; Commentary: |
| 23 | |
| 24 | ;;; Code: |
| 25 | |
| 26 | (require 'gnus) |
| 27 | (require 'gnus-cache) |
| 28 | (require 'nnmail) |
| 29 | (require 'nnvirtual) |
| 30 | (require 'gnus-sum) |
| 31 | (require 'gnus-score) |
| 32 | (require 'gnus-srvr) |
| 33 | (require 'gnus-util) |
| 34 | (eval-when-compile |
| 35 | (if (featurep 'xemacs) |
| 36 | (require 'itimer) |
| 37 | (require 'timer)) |
| 38 | (require 'cl)) |
| 39 | |
| 40 | (autoload 'gnus-server-update-server "gnus-srvr") |
| 41 | (autoload 'gnus-agent-customize-category "gnus-cus") |
| 42 | |
| 43 | (defcustom gnus-agent-directory (nnheader-concat gnus-directory "agent/") |
| 44 | "Where the Gnus agent will store its files." |
| 45 | :group 'gnus-agent |
| 46 | :type 'directory) |
| 47 | |
| 48 | (defcustom gnus-agent-plugged-hook nil |
| 49 | "Hook run when plugging into the network." |
| 50 | :group 'gnus-agent |
| 51 | :type 'hook) |
| 52 | |
| 53 | (defcustom gnus-agent-unplugged-hook nil |
| 54 | "Hook run when unplugging from the network." |
| 55 | :group 'gnus-agent |
| 56 | :type 'hook) |
| 57 | |
| 58 | (defcustom gnus-agent-fetched-hook nil |
| 59 | "Hook run when finished fetching articles." |
| 60 | :version "22.1" |
| 61 | :group 'gnus-agent |
| 62 | :type 'hook) |
| 63 | |
| 64 | (defcustom gnus-agent-handle-level gnus-level-subscribed |
| 65 | "Groups on levels higher than this variable will be ignored by the Agent." |
| 66 | :group 'gnus-agent |
| 67 | :type 'integer) |
| 68 | |
| 69 | (defcustom gnus-agent-expire-days 7 |
| 70 | "Read articles older than this will be expired. |
| 71 | If you wish to disable Agent expiring, see `gnus-agent-enable-expiration'." |
| 72 | :group 'gnus-agent |
| 73 | :type '(number :tag "days")) |
| 74 | |
| 75 | (defcustom gnus-agent-expire-all nil |
| 76 | "If non-nil, also expire unread, ticked and dormant articles. |
| 77 | If nil, only read articles will be expired." |
| 78 | :group 'gnus-agent |
| 79 | :type 'boolean) |
| 80 | |
| 81 | (defcustom gnus-agent-group-mode-hook nil |
| 82 | "Hook run in Agent group minor modes." |
| 83 | :group 'gnus-agent |
| 84 | :type 'hook) |
| 85 | |
| 86 | ;; Extracted from gnus-xmas-redefine in order to preserve user settings |
| 87 | (when (featurep 'xemacs) |
| 88 | (add-hook 'gnus-agent-group-mode-hook 'gnus-xmas-agent-group-menu-add)) |
| 89 | |
| 90 | (defcustom gnus-agent-summary-mode-hook nil |
| 91 | "Hook run in Agent summary minor modes." |
| 92 | :group 'gnus-agent |
| 93 | :type 'hook) |
| 94 | |
| 95 | ;; Extracted from gnus-xmas-redefine in order to preserve user settings |
| 96 | (when (featurep 'xemacs) |
| 97 | (add-hook 'gnus-agent-summary-mode-hook 'gnus-xmas-agent-summary-menu-add)) |
| 98 | |
| 99 | (defcustom gnus-agent-server-mode-hook nil |
| 100 | "Hook run in Agent summary minor modes." |
| 101 | :group 'gnus-agent |
| 102 | :type 'hook) |
| 103 | |
| 104 | ;; Extracted from gnus-xmas-redefine in order to preserve user settings |
| 105 | (when (featurep 'xemacs) |
| 106 | (add-hook 'gnus-agent-server-mode-hook 'gnus-xmas-agent-server-menu-add)) |
| 107 | |
| 108 | (defcustom gnus-agent-confirmation-function 'y-or-n-p |
| 109 | "Function to confirm when error happens." |
| 110 | :version "21.1" |
| 111 | :group 'gnus-agent |
| 112 | :type 'function) |
| 113 | |
| 114 | (defcustom gnus-agent-synchronize-flags nil |
| 115 | "Indicate if flags are synchronized when you plug in. |
| 116 | If this is `ask' the hook will query the user." |
| 117 | ;; If the default switches to something else than nil, then the function |
| 118 | ;; should be fixed not be exceedingly slow. See 2005-09-20 ChangeLog entry. |
| 119 | :version "21.1" |
| 120 | :type '(choice (const :tag "Always" t) |
| 121 | (const :tag "Never" nil) |
| 122 | (const :tag "Ask" ask)) |
| 123 | :group 'gnus-agent) |
| 124 | |
| 125 | (defcustom gnus-agent-go-online 'ask |
| 126 | "Indicate if offline servers go online when you plug in. |
| 127 | If this is `ask' the hook will query the user." |
| 128 | :version "21.3" |
| 129 | :type '(choice (const :tag "Always" t) |
| 130 | (const :tag "Never" nil) |
| 131 | (const :tag "Ask" ask)) |
| 132 | :group 'gnus-agent) |
| 133 | |
| 134 | (defcustom gnus-agent-mark-unread-after-downloaded t |
| 135 | "Indicate whether to mark articles unread after downloaded." |
| 136 | :version "21.1" |
| 137 | :type 'boolean |
| 138 | :group 'gnus-agent) |
| 139 | |
| 140 | (defcustom gnus-agent-download-marks '(download) |
| 141 | "Marks for downloading." |
| 142 | :version "21.1" |
| 143 | :type '(repeat (symbol :tag "Mark")) |
| 144 | :group 'gnus-agent) |
| 145 | |
| 146 | (defcustom gnus-agent-consider-all-articles nil |
| 147 | "When non-nil, the agent will let the agent predicate decide |
| 148 | whether articles need to be downloaded or not, for all articles. When |
| 149 | nil, the default, the agent will only let the predicate decide |
| 150 | whether unread articles are downloaded or not. If you enable this, |
| 151 | groups with large active ranges may open slower and you may also want |
| 152 | to look into the agent expiry settings to block the expiration of |
| 153 | read articles as they would just be downloaded again." |
| 154 | :version "22.1" |
| 155 | :type 'boolean |
| 156 | :group 'gnus-agent) |
| 157 | |
| 158 | (defcustom gnus-agent-max-fetch-size 10000000 ;; 10 Mb |
| 159 | "Chunk size for `gnus-agent-fetch-session'. |
| 160 | The function will split its article fetches into chunks smaller than |
| 161 | this limit." |
| 162 | :version "22.1" |
| 163 | :group 'gnus-agent |
| 164 | :type 'integer) |
| 165 | |
| 166 | (defcustom gnus-agent-enable-expiration 'ENABLE |
| 167 | "The default expiration state for each group. |
| 168 | When set to ENABLE, the default, `gnus-agent-expire' will expire old |
| 169 | contents from a group's local storage. This value may be overridden |
| 170 | to disable expiration in specific categories, topics, and groups. Of |
| 171 | course, you could change gnus-agent-enable-expiration to DISABLE then |
| 172 | enable expiration per categories, topics, and groups." |
| 173 | :version "22.1" |
| 174 | :group 'gnus-agent |
| 175 | :type '(radio (const :format "Enable " ENABLE) |
| 176 | (const :format "Disable " DISABLE))) |
| 177 | |
| 178 | (defcustom gnus-agent-expire-unagentized-dirs t |
| 179 | "*Whether expiration should expire in unagentized directories. |
| 180 | Have gnus-agent-expire scan the directories under |
| 181 | \(gnus-agent-directory) for groups that are no longer agentized. |
| 182 | When found, offer to remove them." |
| 183 | :version "22.1" |
| 184 | :type 'boolean |
| 185 | :group 'gnus-agent) |
| 186 | |
| 187 | (defcustom gnus-agent-auto-agentize-methods nil |
| 188 | "Initially, all servers from these methods are agentized. |
| 189 | The user may remove or add servers using the Server buffer. |
| 190 | See Info node `(gnus)Server Buffer'." |
| 191 | :version "22.1" |
| 192 | :type '(repeat symbol) |
| 193 | :group 'gnus-agent) |
| 194 | |
| 195 | (defcustom gnus-agent-queue-mail t |
| 196 | "Whether and when outgoing mail should be queued by the agent. |
| 197 | When `always', always queue outgoing mail. When nil, never |
| 198 | queue. Otherwise, queue if and only if unplugged." |
| 199 | :version "22.1" |
| 200 | :group 'gnus-agent |
| 201 | :type '(radio (const :format "Always" always) |
| 202 | (const :format "Never" nil) |
| 203 | (const :format "When unplugged" t))) |
| 204 | |
| 205 | (defcustom gnus-agent-prompt-send-queue nil |
| 206 | "If non-nil, `gnus-group-send-queue' will prompt if called when |
| 207 | unplugged." |
| 208 | :version "22.1" |
| 209 | :group 'gnus-agent |
| 210 | :type 'boolean) |
| 211 | |
| 212 | (defcustom gnus-agent-article-alist-save-format 1 |
| 213 | "Indicates whether to use compression(2), versus no |
| 214 | compression(1), when writing agentview files. The compressed |
| 215 | files do save space but load times are 6-7 times higher. A group |
| 216 | must be opened then closed for the agentview to be updated using |
| 217 | the new format." |
| 218 | ;; Wouldn't symbols instead numbers be nicer? --rsteib |
| 219 | :version "22.1" |
| 220 | :group 'gnus-agent |
| 221 | :type '(radio (const :format "Compressed" 2) |
| 222 | (const :format "Uncompressed" 1))) |
| 223 | |
| 224 | ;;; Internal variables |
| 225 | |
| 226 | (defvar gnus-agent-history-buffers nil) |
| 227 | (defvar gnus-agent-buffer-alist nil) |
| 228 | (defvar gnus-agent-article-alist nil |
| 229 | "An assoc list identifying the articles whose headers have been fetched. |
| 230 | If successfully fetched, these headers will be stored in the group's overview |
| 231 | file. The key of each assoc pair is the article ID, the value of each assoc |
| 232 | pair is a flag indicating whether the identified article has been downloaded |
| 233 | \(gnus-agent-fetch-articles sets the value to the day of the download). |
| 234 | NOTES: |
| 235 | 1) The last element of this list can not be expired as some |
| 236 | routines (for example, get-agent-fetch-headers) use the last |
| 237 | value to track which articles have had their headers retrieved. |
| 238 | 2) The function `gnus-agent-regenerate' may destructively modify the value.") |
| 239 | (defvar gnus-agent-group-alist nil) |
| 240 | (defvar gnus-category-alist nil) |
| 241 | (defvar gnus-agent-current-history nil) |
| 242 | (defvar gnus-agent-overview-buffer nil) |
| 243 | (defvar gnus-category-predicate-cache nil) |
| 244 | (defvar gnus-category-group-cache nil) |
| 245 | (defvar gnus-agent-spam-hashtb nil) |
| 246 | (defvar gnus-agent-file-name nil) |
| 247 | (defvar gnus-agent-send-mail-function nil) |
| 248 | (defvar gnus-agent-file-coding-system 'raw-text) |
| 249 | (defvar gnus-agent-file-loading-cache nil) |
| 250 | (defvar gnus-agent-total-fetched-hashtb nil) |
| 251 | (defvar gnus-agent-inhibit-update-total-fetched-for nil) |
| 252 | (defvar gnus-agent-need-update-total-fetched-for nil) |
| 253 | |
| 254 | ;; Dynamic variables |
| 255 | (defvar gnus-headers) |
| 256 | (defvar gnus-score) |
| 257 | |
| 258 | ;; Added to support XEmacs |
| 259 | (eval-and-compile |
| 260 | (unless (fboundp 'directory-files-and-attributes) |
| 261 | (defun directory-files-and-attributes (directory |
| 262 | &optional full match nosort) |
| 263 | (let (result) |
| 264 | (dolist (file (directory-files directory full match nosort)) |
| 265 | (push (cons file (file-attributes file)) result)) |
| 266 | (nreverse result))))) |
| 267 | |
| 268 | ;;; |
| 269 | ;;; Setup |
| 270 | ;;; |
| 271 | |
| 272 | (defun gnus-open-agent () |
| 273 | (setq gnus-agent t) |
| 274 | (gnus-agent-read-servers) |
| 275 | (gnus-category-read) |
| 276 | (gnus-agent-create-buffer) |
| 277 | (add-hook 'gnus-group-mode-hook 'gnus-agent-mode) |
| 278 | (add-hook 'gnus-summary-mode-hook 'gnus-agent-mode) |
| 279 | (add-hook 'gnus-server-mode-hook 'gnus-agent-mode)) |
| 280 | |
| 281 | (defun gnus-agent-create-buffer () |
| 282 | (if (gnus-buffer-live-p gnus-agent-overview-buffer) |
| 283 | t |
| 284 | (setq gnus-agent-overview-buffer |
| 285 | (gnus-get-buffer-create " *Gnus agent overview*")) |
| 286 | (with-current-buffer gnus-agent-overview-buffer |
| 287 | (mm-enable-multibyte)) |
| 288 | nil)) |
| 289 | |
| 290 | (gnus-add-shutdown 'gnus-close-agent 'gnus) |
| 291 | |
| 292 | (defun gnus-close-agent () |
| 293 | (setq gnus-category-predicate-cache nil |
| 294 | gnus-category-group-cache nil |
| 295 | gnus-agent-spam-hashtb nil) |
| 296 | (gnus-kill-buffer gnus-agent-overview-buffer)) |
| 297 | |
| 298 | ;;; |
| 299 | ;;; Utility functions |
| 300 | ;;; |
| 301 | |
| 302 | (defmacro gnus-agent-with-refreshed-group (group &rest body) |
| 303 | "Performs the body then updates the group's line in the group |
| 304 | buffer. Automatically blocks multiple updates due to recursion." |
| 305 | `(prog1 (let ((gnus-agent-inhibit-update-total-fetched-for t)) ,@body) |
| 306 | (when (and gnus-agent-need-update-total-fetched-for |
| 307 | (not gnus-agent-inhibit-update-total-fetched-for)) |
| 308 | (with-current-buffer gnus-group-buffer |
| 309 | (setq gnus-agent-need-update-total-fetched-for nil) |
| 310 | (gnus-group-update-group ,group t))))) |
| 311 | |
| 312 | (defun gnus-agent-read-file (file) |
| 313 | "Load FILE and do a `read' there." |
| 314 | (with-temp-buffer |
| 315 | (ignore-errors |
| 316 | (nnheader-insert-file-contents file) |
| 317 | (goto-char (point-min)) |
| 318 | (read (current-buffer))))) |
| 319 | |
| 320 | (defsubst gnus-agent-method () |
| 321 | (concat (symbol-name (car gnus-command-method)) "/" |
| 322 | (if (equal (cadr gnus-command-method) "") |
| 323 | "unnamed" |
| 324 | (cadr gnus-command-method)))) |
| 325 | |
| 326 | (defsubst gnus-agent-directory () |
| 327 | "The name of the Gnus agent directory." |
| 328 | (nnheader-concat gnus-agent-directory |
| 329 | (nnheader-translate-file-chars (gnus-agent-method)) "/")) |
| 330 | |
| 331 | (defun gnus-agent-lib-file (file) |
| 332 | "The full name of the Gnus agent library FILE." |
| 333 | (expand-file-name file |
| 334 | (file-name-as-directory |
| 335 | (expand-file-name "agent.lib" (gnus-agent-directory))))) |
| 336 | |
| 337 | (defun gnus-agent-cat-set-property (category property value) |
| 338 | (if value |
| 339 | (setcdr (or (assq property category) |
| 340 | (let ((cell (cons property nil))) |
| 341 | (setcdr category (cons cell (cdr category))) |
| 342 | cell)) value) |
| 343 | (let ((category category)) |
| 344 | (while (cond ((eq property (caadr category)) |
| 345 | (setcdr category (cddr category)) |
| 346 | nil) |
| 347 | (t |
| 348 | (setq category (cdr category))))))) |
| 349 | category) |
| 350 | |
| 351 | (eval-when-compile |
| 352 | (defmacro gnus-agent-cat-defaccessor (name prop-name) |
| 353 | "Define accessor and setter methods for manipulating a list of the form |
| 354 | \(NAME (PROPERTY1 VALUE1) ... (PROPERTY_N VALUE_N)). |
| 355 | Given the call (gnus-agent-cat-defaccessor func PROPERTY1), the list may be |
| 356 | manipulated as follows: |
| 357 | (func LIST): Returns VALUE1 |
| 358 | (setf (func LIST) NEW_VALUE1): Replaces VALUE1 with NEW_VALUE1." |
| 359 | `(progn (defmacro ,name (category) |
| 360 | (list (quote cdr) (list (quote assq) |
| 361 | (quote (quote ,prop-name)) category))) |
| 362 | |
| 363 | (define-setf-method ,name (category) |
| 364 | (let* ((--category--temp-- (make-symbol "--category--")) |
| 365 | (--value--temp-- (make-symbol "--value--"))) |
| 366 | (list (list --category--temp--) ; temporary-variables |
| 367 | (list category) ; value-forms |
| 368 | (list --value--temp--) ; store-variables |
| 369 | (let* ((category --category--temp--) ; store-form |
| 370 | (value --value--temp--)) |
| 371 | (list (quote gnus-agent-cat-set-property) |
| 372 | category |
| 373 | (quote (quote ,prop-name)) |
| 374 | value)) |
| 375 | (list (quote ,name) --category--temp--) ; access-form |
| 376 | ))))) |
| 377 | ) |
| 378 | |
| 379 | (defmacro gnus-agent-cat-name (category) |
| 380 | `(car ,category)) |
| 381 | |
| 382 | (gnus-agent-cat-defaccessor |
| 383 | gnus-agent-cat-days-until-old agent-days-until-old) |
| 384 | (gnus-agent-cat-defaccessor |
| 385 | gnus-agent-cat-enable-expiration agent-enable-expiration) |
| 386 | (gnus-agent-cat-defaccessor |
| 387 | gnus-agent-cat-groups agent-groups) |
| 388 | (gnus-agent-cat-defaccessor |
| 389 | gnus-agent-cat-high-score agent-high-score) |
| 390 | (gnus-agent-cat-defaccessor |
| 391 | gnus-agent-cat-length-when-long agent-long-article) |
| 392 | (gnus-agent-cat-defaccessor |
| 393 | gnus-agent-cat-length-when-short agent-short-article) |
| 394 | (gnus-agent-cat-defaccessor |
| 395 | gnus-agent-cat-low-score agent-low-score) |
| 396 | (gnus-agent-cat-defaccessor |
| 397 | gnus-agent-cat-predicate agent-predicate) |
| 398 | (gnus-agent-cat-defaccessor |
| 399 | gnus-agent-cat-score-file agent-score) |
| 400 | (gnus-agent-cat-defaccessor |
| 401 | gnus-agent-cat-enable-undownloaded-faces agent-enable-undownloaded-faces) |
| 402 | |
| 403 | |
| 404 | ;; This form is equivalent to defsetf except that it calls make-symbol |
| 405 | ;; whereas defsetf calls gensym (Using gensym creates a run-time |
| 406 | ;; dependency on the CL library). |
| 407 | |
| 408 | (eval-and-compile |
| 409 | (define-setf-method gnus-agent-cat-groups (category) |
| 410 | (let* ((--category--temp-- (make-symbol "--category--")) |
| 411 | (--groups--temp-- (make-symbol "--groups--"))) |
| 412 | (list (list --category--temp--) |
| 413 | (list category) |
| 414 | (list --groups--temp--) |
| 415 | (let* ((category --category--temp--) |
| 416 | (groups --groups--temp--)) |
| 417 | (list (quote gnus-agent-set-cat-groups) category groups)) |
| 418 | (list (quote gnus-agent-cat-groups) --category--temp--)))) |
| 419 | ) |
| 420 | |
| 421 | (defun gnus-agent-set-cat-groups (category groups) |
| 422 | (unless (eq groups 'ignore) |
| 423 | (let ((new-g groups) |
| 424 | (old-g (gnus-agent-cat-groups category))) |
| 425 | (cond ((eq new-g old-g) |
| 426 | ;; gnus-agent-add-group is fiddling with the group |
| 427 | ;; list. Still, Im done. |
| 428 | nil |
| 429 | ) |
| 430 | ((eq new-g (cdr old-g)) |
| 431 | ;; gnus-agent-add-group is fiddling with the group list |
| 432 | (setcdr (or (assq 'agent-groups category) |
| 433 | (let ((cell (cons 'agent-groups nil))) |
| 434 | (setcdr category (cons cell (cdr category))) |
| 435 | cell)) new-g)) |
| 436 | (t |
| 437 | (let ((groups groups)) |
| 438 | (while groups |
| 439 | (let* ((group (pop groups)) |
| 440 | (old-category (gnus-group-category group))) |
| 441 | (if (eq category old-category) |
| 442 | nil |
| 443 | (setf (gnus-agent-cat-groups old-category) |
| 444 | (delete group (gnus-agent-cat-groups |
| 445 | old-category)))))) |
| 446 | ;; Purge cache as preceeding loop invalidated it. |
| 447 | (setq gnus-category-group-cache nil)) |
| 448 | |
| 449 | (setcdr (or (assq 'agent-groups category) |
| 450 | (let ((cell (cons 'agent-groups nil))) |
| 451 | (setcdr category (cons cell (cdr category))) |
| 452 | cell)) groups)))))) |
| 453 | |
| 454 | (defsubst gnus-agent-cat-make (name &optional default-agent-predicate) |
| 455 | (list name `(agent-predicate . ,(or default-agent-predicate 'false)))) |
| 456 | |
| 457 | (defun gnus-agent-read-group () |
| 458 | "Read a group name in the minibuffer, with completion." |
| 459 | (let ((def (or (gnus-group-group-name) gnus-newsgroup-name))) |
| 460 | (when def |
| 461 | (setq def (gnus-group-decoded-name def))) |
| 462 | (gnus-group-completing-read (if def |
| 463 | (concat "Group Name (" def "): ") |
| 464 | "Group Name: ") |
| 465 | nil nil t nil nil def))) |
| 466 | |
| 467 | ;;; Fetching setup functions. |
| 468 | |
| 469 | (defun gnus-agent-start-fetch () |
| 470 | "Initialize data structures for efficient fetching." |
| 471 | (gnus-agent-create-buffer)) |
| 472 | |
| 473 | (defun gnus-agent-stop-fetch () |
| 474 | "Save all data structures and clean up." |
| 475 | (setq gnus-agent-spam-hashtb nil) |
| 476 | (with-current-buffer nntp-server-buffer |
| 477 | (widen))) |
| 478 | |
| 479 | (defmacro gnus-agent-with-fetch (&rest forms) |
| 480 | "Do FORMS safely." |
| 481 | `(unwind-protect |
| 482 | (let ((gnus-agent-fetching t)) |
| 483 | (gnus-agent-start-fetch) |
| 484 | ,@forms) |
| 485 | (gnus-agent-stop-fetch))) |
| 486 | |
| 487 | (put 'gnus-agent-with-fetch 'lisp-indent-function 0) |
| 488 | (put 'gnus-agent-with-fetch 'edebug-form-spec '(body)) |
| 489 | |
| 490 | (defmacro gnus-agent-append-to-list (tail value) |
| 491 | `(setq ,tail (setcdr ,tail (cons ,value nil)))) |
| 492 | |
| 493 | (defmacro gnus-agent-message (level &rest args) |
| 494 | `(if (<= ,level gnus-verbose) |
| 495 | (message ,@args))) |
| 496 | |
| 497 | ;;; |
| 498 | ;;; Mode infestation |
| 499 | ;;; |
| 500 | |
| 501 | (defvar gnus-agent-mode-hook nil |
| 502 | "Hook run when installing agent mode.") |
| 503 | |
| 504 | (defvar gnus-agent-mode nil) |
| 505 | (defvar gnus-agent-mode-status '(gnus-agent-mode " Plugged")) |
| 506 | |
| 507 | (defun gnus-agent-mode () |
| 508 | "Minor mode for providing a agent support in Gnus buffers." |
| 509 | (let* ((buffer (progn (string-match "^gnus-\\(.*\\)-mode$" |
| 510 | (symbol-name major-mode)) |
| 511 | (match-string 1 (symbol-name major-mode)))) |
| 512 | (mode (intern (format "gnus-agent-%s-mode" buffer)))) |
| 513 | (set (make-local-variable 'gnus-agent-mode) t) |
| 514 | (set mode nil) |
| 515 | (set (make-local-variable mode) t) |
| 516 | ;; Set up the menu. |
| 517 | (when (gnus-visual-p 'agent-menu 'menu) |
| 518 | (funcall (intern (format "gnus-agent-%s-make-menu-bar" buffer)))) |
| 519 | (unless (assq 'gnus-agent-mode minor-mode-alist) |
| 520 | (push gnus-agent-mode-status minor-mode-alist)) |
| 521 | (unless (assq mode minor-mode-map-alist) |
| 522 | (push (cons mode (symbol-value (intern (format "gnus-agent-%s-mode-map" |
| 523 | buffer)))) |
| 524 | minor-mode-map-alist)) |
| 525 | (when (eq major-mode 'gnus-group-mode) |
| 526 | (let ((init-plugged gnus-plugged) |
| 527 | (gnus-agent-go-online nil)) |
| 528 | ;; g-a-t-p does nothing when gnus-plugged isn't changed. |
| 529 | ;; Therefore, make certain that the current value does not |
| 530 | ;; match the desired initial value. |
| 531 | (setq gnus-plugged :unknown) |
| 532 | (gnus-agent-toggle-plugged init-plugged))) |
| 533 | (gnus-run-hooks 'gnus-agent-mode-hook |
| 534 | (intern (format "gnus-agent-%s-mode-hook" buffer))))) |
| 535 | |
| 536 | (defvar gnus-agent-group-mode-map (make-sparse-keymap)) |
| 537 | (gnus-define-keys gnus-agent-group-mode-map |
| 538 | "Ju" gnus-agent-fetch-groups |
| 539 | "Jc" gnus-enter-category-buffer |
| 540 | "Jj" gnus-agent-toggle-plugged |
| 541 | "Js" gnus-agent-fetch-session |
| 542 | "JY" gnus-agent-synchronize-flags |
| 543 | "JS" gnus-group-send-queue |
| 544 | "Ja" gnus-agent-add-group |
| 545 | "Jr" gnus-agent-remove-group |
| 546 | "Jo" gnus-agent-toggle-group-plugged) |
| 547 | |
| 548 | (defun gnus-agent-group-make-menu-bar () |
| 549 | (unless (boundp 'gnus-agent-group-menu) |
| 550 | (easy-menu-define |
| 551 | gnus-agent-group-menu gnus-agent-group-mode-map "" |
| 552 | '("Agent" |
| 553 | ["Toggle plugged" gnus-agent-toggle-plugged t] |
| 554 | ["Toggle group plugged" gnus-agent-toggle-group-plugged t] |
| 555 | ["List categories" gnus-enter-category-buffer t] |
| 556 | ["Add (current) group to category" gnus-agent-add-group t] |
| 557 | ["Remove (current) group from category" gnus-agent-remove-group t] |
| 558 | ["Send queue" gnus-group-send-queue gnus-plugged] |
| 559 | ("Fetch" |
| 560 | ["All" gnus-agent-fetch-session gnus-plugged] |
| 561 | ["Group" gnus-agent-fetch-group gnus-plugged]) |
| 562 | ["Synchronize flags" gnus-agent-synchronize-flags t] |
| 563 | )))) |
| 564 | |
| 565 | (defvar gnus-agent-summary-mode-map (make-sparse-keymap)) |
| 566 | (gnus-define-keys gnus-agent-summary-mode-map |
| 567 | "Jj" gnus-agent-toggle-plugged |
| 568 | "Ju" gnus-agent-summary-fetch-group |
| 569 | "JS" gnus-agent-fetch-group |
| 570 | "Js" gnus-agent-summary-fetch-series |
| 571 | "J#" gnus-agent-mark-article |
| 572 | "J\M-#" gnus-agent-unmark-article |
| 573 | "@" gnus-agent-toggle-mark |
| 574 | "Jc" gnus-agent-catchup) |
| 575 | |
| 576 | (defun gnus-agent-summary-make-menu-bar () |
| 577 | (unless (boundp 'gnus-agent-summary-menu) |
| 578 | (easy-menu-define |
| 579 | gnus-agent-summary-menu gnus-agent-summary-mode-map "" |
| 580 | '("Agent" |
| 581 | ["Toggle plugged" gnus-agent-toggle-plugged t] |
| 582 | ["Mark as downloadable" gnus-agent-mark-article t] |
| 583 | ["Unmark as downloadable" gnus-agent-unmark-article t] |
| 584 | ["Toggle mark" gnus-agent-toggle-mark t] |
| 585 | ["Fetch downloadable" gnus-agent-summary-fetch-group t] |
| 586 | ["Catchup undownloaded" gnus-agent-catchup t])))) |
| 587 | |
| 588 | (defvar gnus-agent-server-mode-map (make-sparse-keymap)) |
| 589 | (gnus-define-keys gnus-agent-server-mode-map |
| 590 | "Jj" gnus-agent-toggle-plugged |
| 591 | "Ja" gnus-agent-add-server |
| 592 | "Jr" gnus-agent-remove-server) |
| 593 | |
| 594 | (defun gnus-agent-server-make-menu-bar () |
| 595 | (unless (boundp 'gnus-agent-server-menu) |
| 596 | (easy-menu-define |
| 597 | gnus-agent-server-menu gnus-agent-server-mode-map "" |
| 598 | '("Agent" |
| 599 | ["Toggle plugged" gnus-agent-toggle-plugged t] |
| 600 | ["Add" gnus-agent-add-server t] |
| 601 | ["Remove" gnus-agent-remove-server t])))) |
| 602 | |
| 603 | (defun gnus-agent-make-mode-line-string (string mouse-button mouse-func) |
| 604 | (if (and (fboundp 'propertize) |
| 605 | (fboundp 'make-mode-line-mouse-map)) |
| 606 | (propertize string 'local-map |
| 607 | (make-mode-line-mouse-map mouse-button mouse-func) |
| 608 | 'mouse-face |
| 609 | (if (and (featurep 'xemacs) |
| 610 | ;; XEmacs' `facep' only checks for a face |
| 611 | ;; object, not for a face name, so it's useless |
| 612 | ;; to check with `facep'. |
| 613 | (find-face 'modeline)) |
| 614 | 'modeline |
| 615 | 'mode-line-highlight)) |
| 616 | string)) |
| 617 | |
| 618 | (defun gnus-agent-toggle-plugged (set-to) |
| 619 | "Toggle whether Gnus is unplugged or not." |
| 620 | (interactive (list (not gnus-plugged))) |
| 621 | (cond ((eq set-to gnus-plugged) |
| 622 | nil) |
| 623 | (set-to |
| 624 | (setq gnus-plugged set-to) |
| 625 | (gnus-run-hooks 'gnus-agent-plugged-hook) |
| 626 | (setcar (cdr gnus-agent-mode-status) |
| 627 | (gnus-agent-make-mode-line-string " Plugged" |
| 628 | 'mouse-2 |
| 629 | 'gnus-agent-toggle-plugged)) |
| 630 | (gnus-agent-go-online gnus-agent-go-online)) |
| 631 | (t |
| 632 | (gnus-agent-close-connections) |
| 633 | (setq gnus-plugged set-to) |
| 634 | (gnus-run-hooks 'gnus-agent-unplugged-hook) |
| 635 | (setcar (cdr gnus-agent-mode-status) |
| 636 | (gnus-agent-make-mode-line-string " Unplugged" |
| 637 | 'mouse-2 |
| 638 | 'gnus-agent-toggle-plugged)))) |
| 639 | (set-buffer-modified-p t)) |
| 640 | |
| 641 | (defmacro gnus-agent-while-plugged (&rest body) |
| 642 | `(let ((original-gnus-plugged gnus-plugged)) |
| 643 | (unwind-protect |
| 644 | (progn (gnus-agent-toggle-plugged t) |
| 645 | ,@body) |
| 646 | (gnus-agent-toggle-plugged original-gnus-plugged)))) |
| 647 | |
| 648 | (put 'gnus-agent-while-plugged 'lisp-indent-function 0) |
| 649 | (put 'gnus-agent-while-plugged 'edebug-form-spec '(body)) |
| 650 | |
| 651 | (defun gnus-agent-close-connections () |
| 652 | "Close all methods covered by the Gnus agent." |
| 653 | (let ((methods (gnus-agent-covered-methods))) |
| 654 | (while methods |
| 655 | (gnus-close-server (pop methods))))) |
| 656 | |
| 657 | ;;;###autoload |
| 658 | (defun gnus-unplugged () |
| 659 | "Start Gnus unplugged." |
| 660 | (interactive) |
| 661 | (setq gnus-plugged nil) |
| 662 | (gnus)) |
| 663 | |
| 664 | ;;;###autoload |
| 665 | (defun gnus-plugged () |
| 666 | "Start Gnus plugged." |
| 667 | (interactive) |
| 668 | (setq gnus-plugged t) |
| 669 | (gnus)) |
| 670 | |
| 671 | ;;;###autoload |
| 672 | (defun gnus-slave-unplugged (&optional arg) |
| 673 | "Read news as a slave unplugged." |
| 674 | (interactive "P") |
| 675 | (setq gnus-plugged nil) |
| 676 | (gnus arg nil 'slave)) |
| 677 | |
| 678 | ;;;###autoload |
| 679 | (defun gnus-agentize () |
| 680 | "Allow Gnus to be an offline newsreader. |
| 681 | |
| 682 | The gnus-agentize function is now called internally by gnus when |
| 683 | gnus-agent is set. If you wish to avoid calling gnus-agentize, |
| 684 | customize gnus-agent to nil. |
| 685 | |
| 686 | This will modify the `gnus-setup-news-hook', and |
| 687 | `message-send-mail-real-function' variables, and install the Gnus agent |
| 688 | minor mode in all Gnus buffers." |
| 689 | (interactive) |
| 690 | (gnus-open-agent) |
| 691 | (add-hook 'gnus-setup-news-hook 'gnus-agent-queue-setup) |
| 692 | (unless gnus-agent-send-mail-function |
| 693 | (setq gnus-agent-send-mail-function |
| 694 | (or message-send-mail-real-function |
| 695 | (function (lambda () (funcall message-send-mail-function)))) |
| 696 | message-send-mail-real-function 'gnus-agent-send-mail)) |
| 697 | |
| 698 | ;; If the servers file doesn't exist, auto-agentize some servers and |
| 699 | ;; save the servers file so this auto-agentizing isn't invoked |
| 700 | ;; again. |
| 701 | (unless (file-exists-p (nnheader-concat gnus-agent-directory "lib/servers")) |
| 702 | (gnus-message 3 "First time agent user, agentizing remote groups...") |
| 703 | (mapc |
| 704 | (lambda (server-or-method) |
| 705 | (let ((method (gnus-server-to-method server-or-method))) |
| 706 | (when (memq (car method) |
| 707 | gnus-agent-auto-agentize-methods) |
| 708 | (push (gnus-method-to-server method) |
| 709 | gnus-agent-covered-methods) |
| 710 | (setq gnus-agent-method-p-cache nil)))) |
| 711 | (cons gnus-select-method gnus-secondary-select-methods)) |
| 712 | (gnus-agent-write-servers))) |
| 713 | |
| 714 | (defun gnus-agent-queue-setup (&optional group-name) |
| 715 | "Make sure the queue group exists. |
| 716 | Optional arg GROUP-NAME allows to specify another group." |
| 717 | (unless (gnus-gethash (format "nndraft:%s" (or group-name "queue")) |
| 718 | gnus-newsrc-hashtb) |
| 719 | (gnus-request-create-group (or group-name "queue") '(nndraft "")) |
| 720 | (let ((gnus-level-default-subscribed 1)) |
| 721 | (gnus-subscribe-group (format "nndraft:%s" (or group-name "queue")) |
| 722 | nil '(nndraft ""))) |
| 723 | (gnus-group-set-parameter |
| 724 | (format "nndraft:%s" (or group-name "queue")) |
| 725 | 'gnus-dummy '((gnus-draft-mode))))) |
| 726 | |
| 727 | (defun gnus-agent-send-mail () |
| 728 | (if (or (not gnus-agent-queue-mail) |
| 729 | (and gnus-plugged (not (eq gnus-agent-queue-mail 'always)))) |
| 730 | (funcall gnus-agent-send-mail-function) |
| 731 | (goto-char (point-min)) |
| 732 | (re-search-forward |
| 733 | (concat "^" (regexp-quote mail-header-separator) "\n")) |
| 734 | (replace-match "\n") |
| 735 | (gnus-agent-insert-meta-information 'mail) |
| 736 | (gnus-request-accept-article "nndraft:queue" nil t t))) |
| 737 | |
| 738 | (defun gnus-agent-insert-meta-information (type &optional method) |
| 739 | "Insert meta-information into the message that says how it's to be posted. |
| 740 | TYPE can be either `mail' or `news'. If the latter, then METHOD can |
| 741 | be a select method." |
| 742 | (save-excursion |
| 743 | (message-remove-header gnus-agent-meta-information-header) |
| 744 | (goto-char (point-min)) |
| 745 | (insert gnus-agent-meta-information-header ": " |
| 746 | (symbol-name type) " " (format "%S" method) |
| 747 | "\n") |
| 748 | (forward-char -1) |
| 749 | (while (search-backward "\n" nil t) |
| 750 | (replace-match "\\n" t t)))) |
| 751 | |
| 752 | (defun gnus-agent-restore-gcc () |
| 753 | "Restore GCC field from saved header." |
| 754 | (save-excursion |
| 755 | (goto-char (point-min)) |
| 756 | (while (re-search-forward |
| 757 | (concat "^" (regexp-quote gnus-agent-gcc-header) ":") nil t) |
| 758 | (replace-match "Gcc:" 'fixedcase)))) |
| 759 | |
| 760 | (defun gnus-agent-any-covered-gcc () |
| 761 | (save-restriction |
| 762 | (message-narrow-to-headers) |
| 763 | (let* ((gcc (mail-fetch-field "gcc" nil t)) |
| 764 | (methods (and gcc |
| 765 | (mapcar 'gnus-inews-group-method |
| 766 | (message-unquote-tokens |
| 767 | (message-tokenize-header |
| 768 | gcc " ,"))))) |
| 769 | covered) |
| 770 | (while (and (not covered) methods) |
| 771 | (setq covered (gnus-agent-method-p (car methods)) |
| 772 | methods (cdr methods))) |
| 773 | covered))) |
| 774 | |
| 775 | ;;;###autoload |
| 776 | (defun gnus-agent-possibly-save-gcc () |
| 777 | "Save GCC if Gnus is unplugged." |
| 778 | (when (and (not gnus-plugged) (gnus-agent-any-covered-gcc)) |
| 779 | (save-excursion |
| 780 | (goto-char (point-min)) |
| 781 | (let ((case-fold-search t)) |
| 782 | (while (re-search-forward "^gcc:" nil t) |
| 783 | (replace-match (concat gnus-agent-gcc-header ":") 'fixedcase)))))) |
| 784 | |
| 785 | (defun gnus-agent-possibly-do-gcc () |
| 786 | "Do GCC if Gnus is plugged." |
| 787 | (when (or gnus-plugged (not (gnus-agent-any-covered-gcc))) |
| 788 | (gnus-inews-do-gcc))) |
| 789 | |
| 790 | ;;; |
| 791 | ;;; Group mode commands |
| 792 | ;;; |
| 793 | |
| 794 | (defun gnus-agent-fetch-groups (n) |
| 795 | "Put all new articles in the current groups into the Agent." |
| 796 | (interactive "P") |
| 797 | (unless gnus-plugged |
| 798 | (error "Groups can't be fetched when Gnus is unplugged")) |
| 799 | (gnus-group-iterate n 'gnus-agent-fetch-group)) |
| 800 | |
| 801 | (defun gnus-agent-fetch-group (&optional group) |
| 802 | "Put all new articles in GROUP into the Agent." |
| 803 | (interactive (list (gnus-group-group-name))) |
| 804 | (setq group (or group gnus-newsgroup-name)) |
| 805 | (unless group |
| 806 | (error "No group on the current line")) |
| 807 | |
| 808 | (gnus-agent-while-plugged |
| 809 | (let ((gnus-command-method (gnus-find-method-for-group group))) |
| 810 | (gnus-agent-with-fetch |
| 811 | (gnus-agent-fetch-group-1 group gnus-command-method) |
| 812 | (gnus-message 5 "Fetching %s...done" group))))) |
| 813 | |
| 814 | (defun gnus-agent-add-group (category arg) |
| 815 | "Add the current group to an agent category." |
| 816 | (interactive |
| 817 | (list |
| 818 | (intern |
| 819 | (completing-read |
| 820 | "Add to category: " |
| 821 | (mapcar (lambda (cat) (list (symbol-name (car cat)))) |
| 822 | gnus-category-alist) |
| 823 | nil t)) |
| 824 | current-prefix-arg)) |
| 825 | (let ((cat (assq category gnus-category-alist)) |
| 826 | c groups) |
| 827 | (gnus-group-iterate arg |
| 828 | (lambda (group) |
| 829 | (when (gnus-agent-cat-groups (setq c (gnus-group-category group))) |
| 830 | (setf (gnus-agent-cat-groups c) |
| 831 | (delete group (gnus-agent-cat-groups c)))) |
| 832 | (push group groups))) |
| 833 | (setf (gnus-agent-cat-groups cat) |
| 834 | (nconc (gnus-agent-cat-groups cat) groups)) |
| 835 | (gnus-category-write))) |
| 836 | |
| 837 | (defun gnus-agent-remove-group (arg) |
| 838 | "Remove the current group from its agent category, if any." |
| 839 | (interactive "P") |
| 840 | (let (c) |
| 841 | (gnus-group-iterate arg |
| 842 | (lambda (group) |
| 843 | (when (gnus-agent-cat-groups (setq c (gnus-group-category group))) |
| 844 | (setf (gnus-agent-cat-groups c) |
| 845 | (delete group (gnus-agent-cat-groups c)))))) |
| 846 | (gnus-category-write))) |
| 847 | |
| 848 | (defun gnus-agent-synchronize-flags () |
| 849 | "Synchronize unplugged flags with servers." |
| 850 | (interactive) |
| 851 | (save-excursion |
| 852 | (dolist (gnus-command-method (gnus-agent-covered-methods)) |
| 853 | (when (file-exists-p (gnus-agent-lib-file "flags")) |
| 854 | (gnus-agent-synchronize-flags-server gnus-command-method))))) |
| 855 | |
| 856 | (defun gnus-agent-possibly-synchronize-flags () |
| 857 | "Synchronize flags according to `gnus-agent-synchronize-flags'." |
| 858 | (interactive) |
| 859 | (save-excursion |
| 860 | (dolist (gnus-command-method (gnus-agent-covered-methods)) |
| 861 | (when (eq (gnus-server-status gnus-command-method) 'ok) |
| 862 | (gnus-agent-possibly-synchronize-flags-server gnus-command-method))))) |
| 863 | |
| 864 | (defun gnus-agent-synchronize-flags-server (method) |
| 865 | "Synchronize flags set when unplugged for server." |
| 866 | (let ((gnus-command-method method) |
| 867 | (gnus-agent nil)) |
| 868 | (when (file-exists-p (gnus-agent-lib-file "flags")) |
| 869 | (set-buffer (get-buffer-create " *Gnus Agent flag synchronize*")) |
| 870 | (erase-buffer) |
| 871 | (nnheader-insert-file-contents (gnus-agent-lib-file "flags")) |
| 872 | (cond ((null gnus-plugged) |
| 873 | (gnus-message |
| 874 | 1 "You must be plugged to synchronize flags with server %s" |
| 875 | (nth 1 gnus-command-method))) |
| 876 | ((null (gnus-check-server gnus-command-method)) |
| 877 | (gnus-message |
| 878 | 1 "Couldn't open server %s" (nth 1 gnus-command-method))) |
| 879 | (t |
| 880 | (condition-case err |
| 881 | (while t |
| 882 | (let ((bgn (point))) |
| 883 | (eval (read (current-buffer))) |
| 884 | (delete-region bgn (point)))) |
| 885 | (end-of-file |
| 886 | (delete-file (gnus-agent-lib-file "flags"))) |
| 887 | (error |
| 888 | (let ((file (gnus-agent-lib-file "flags"))) |
| 889 | (write-region (point-min) (point-max) |
| 890 | (gnus-agent-lib-file "flags") nil 'silent) |
| 891 | (error "Couldn't set flags from file %s due to %s" |
| 892 | file (error-message-string err))))))) |
| 893 | (kill-buffer nil)))) |
| 894 | |
| 895 | (defun gnus-agent-possibly-synchronize-flags-server (method) |
| 896 | "Synchronize flags for server according to `gnus-agent-synchronize-flags'." |
| 897 | (when (and (file-exists-p (gnus-agent-lib-file "flags")) |
| 898 | (or (and gnus-agent-synchronize-flags |
| 899 | (not (eq gnus-agent-synchronize-flags 'ask))) |
| 900 | (and (eq gnus-agent-synchronize-flags 'ask) |
| 901 | (gnus-y-or-n-p |
| 902 | (format "Synchronize flags on server `%s'? " |
| 903 | (cadr method)))))) |
| 904 | (gnus-agent-synchronize-flags-server method))) |
| 905 | |
| 906 | ;;;###autoload |
| 907 | (defun gnus-agent-rename-group (old-group new-group) |
| 908 | "Rename fully-qualified OLD-GROUP as NEW-GROUP. |
| 909 | Always updates the agent, even when disabled, as the old agent |
| 910 | files would corrupt gnus when the agent was next enabled. |
| 911 | Depends upon the caller to determine whether group renaming is |
| 912 | supported." |
| 913 | (let* ((old-command-method (gnus-find-method-for-group old-group)) |
| 914 | (old-path (directory-file-name |
| 915 | (let (gnus-command-method old-command-method) |
| 916 | (gnus-agent-group-pathname old-group)))) |
| 917 | (new-command-method (gnus-find-method-for-group new-group)) |
| 918 | (new-path (directory-file-name |
| 919 | (let (gnus-command-method new-command-method) |
| 920 | (gnus-agent-group-pathname new-group)))) |
| 921 | (file-name-coding-system nnmail-pathname-coding-system)) |
| 922 | (gnus-rename-file old-path new-path t) |
| 923 | |
| 924 | (let* ((old-real-group (gnus-group-real-name old-group)) |
| 925 | (new-real-group (gnus-group-real-name new-group)) |
| 926 | (old-active (gnus-agent-get-group-info old-command-method old-real-group))) |
| 927 | (gnus-agent-save-group-info old-command-method old-real-group nil) |
| 928 | (gnus-agent-save-group-info new-command-method new-real-group old-active) |
| 929 | |
| 930 | (let ((old-local (gnus-agent-get-local old-group |
| 931 | old-real-group old-command-method))) |
| 932 | (gnus-agent-set-local old-group |
| 933 | nil nil |
| 934 | old-real-group old-command-method) |
| 935 | (gnus-agent-set-local new-group |
| 936 | (car old-local) (cdr old-local) |
| 937 | new-real-group new-command-method))))) |
| 938 | |
| 939 | ;;;###autoload |
| 940 | (defun gnus-agent-delete-group (group) |
| 941 | "Delete fully-qualified GROUP. |
| 942 | Always updates the agent, even when disabled, as the old agent |
| 943 | files would corrupt gnus when the agent was next enabled. |
| 944 | Depends upon the caller to determine whether group deletion is |
| 945 | supported." |
| 946 | (let* ((command-method (gnus-find-method-for-group group)) |
| 947 | (path (directory-file-name |
| 948 | (let (gnus-command-method command-method) |
| 949 | (gnus-agent-group-pathname group)))) |
| 950 | (file-name-coding-system nnmail-pathname-coding-system)) |
| 951 | (gnus-delete-directory path) |
| 952 | |
| 953 | (let* ((real-group (gnus-group-real-name group))) |
| 954 | (gnus-agent-save-group-info command-method real-group nil) |
| 955 | |
| 956 | (let ((local (gnus-agent-get-local group |
| 957 | real-group command-method))) |
| 958 | (gnus-agent-set-local group |
| 959 | nil nil |
| 960 | real-group command-method))))) |
| 961 | |
| 962 | ;;; |
| 963 | ;;; Server mode commands |
| 964 | ;;; |
| 965 | |
| 966 | (defun gnus-agent-add-server () |
| 967 | "Enroll SERVER in the agent program." |
| 968 | (interactive) |
| 969 | (let* ((server (gnus-server-server-name)) |
| 970 | (named-server (gnus-server-named-server)) |
| 971 | (method (and server |
| 972 | (gnus-server-get-method nil server)))) |
| 973 | (unless server |
| 974 | (error "No server on the current line")) |
| 975 | |
| 976 | (when (gnus-agent-method-p method) |
| 977 | (error "Server already in the agent program")) |
| 978 | |
| 979 | (push named-server gnus-agent-covered-methods) |
| 980 | |
| 981 | (setq gnus-agent-method-p-cache nil) |
| 982 | (gnus-server-update-server server) |
| 983 | (gnus-agent-write-servers) |
| 984 | (gnus-message 1 "Entered %s into the Agent" server))) |
| 985 | |
| 986 | (defun gnus-agent-remove-server () |
| 987 | "Remove SERVER from the agent program." |
| 988 | (interactive) |
| 989 | (let* ((server (gnus-server-server-name)) |
| 990 | (named-server (gnus-server-named-server))) |
| 991 | (unless server |
| 992 | (error "No server on the current line")) |
| 993 | |
| 994 | (unless (member named-server gnus-agent-covered-methods) |
| 995 | (error "Server not in the agent program")) |
| 996 | |
| 997 | (setq gnus-agent-covered-methods |
| 998 | (delete named-server gnus-agent-covered-methods) |
| 999 | gnus-agent-method-p-cache nil) |
| 1000 | |
| 1001 | (gnus-server-update-server server) |
| 1002 | (gnus-agent-write-servers) |
| 1003 | (gnus-message 1 "Removed %s from the agent" server))) |
| 1004 | |
| 1005 | (defun gnus-agent-read-servers () |
| 1006 | "Read the alist of covered servers." |
| 1007 | (setq gnus-agent-covered-methods |
| 1008 | (gnus-agent-read-file |
| 1009 | (nnheader-concat gnus-agent-directory "lib/servers")) |
| 1010 | gnus-agent-method-p-cache nil) |
| 1011 | |
| 1012 | ;; I am called so early in start-up that I can not validate server |
| 1013 | ;; names. When that is the case, I skip the validation. That is |
| 1014 | ;; alright as the gnus startup code calls the validate methods |
| 1015 | ;; directly. |
| 1016 | (if gnus-server-alist |
| 1017 | (gnus-agent-read-servers-validate))) |
| 1018 | |
| 1019 | (defun gnus-agent-read-servers-validate () |
| 1020 | (mapcar (lambda (server-or-method) |
| 1021 | (let* ((server (if (stringp server-or-method) |
| 1022 | server-or-method |
| 1023 | (gnus-method-to-server server-or-method))) |
| 1024 | (method (gnus-server-to-method server))) |
| 1025 | (if method |
| 1026 | (unless (member server gnus-agent-covered-methods) |
| 1027 | (push server gnus-agent-covered-methods) |
| 1028 | (setq gnus-agent-method-p-cache nil)) |
| 1029 | (gnus-message 1 "Ignoring disappeared server `%s'" server)))) |
| 1030 | (prog1 gnus-agent-covered-methods |
| 1031 | (setq gnus-agent-covered-methods nil)))) |
| 1032 | |
| 1033 | (defun gnus-agent-read-servers-validate-native (native-method) |
| 1034 | (setq gnus-agent-covered-methods |
| 1035 | (mapcar (lambda (method) |
| 1036 | (if (or (not method) |
| 1037 | (equal method native-method)) |
| 1038 | "native" |
| 1039 | method)) gnus-agent-covered-methods))) |
| 1040 | |
| 1041 | (defun gnus-agent-write-servers () |
| 1042 | "Write the alist of covered servers." |
| 1043 | (gnus-make-directory (nnheader-concat gnus-agent-directory "lib")) |
| 1044 | (let ((coding-system-for-write nnheader-file-coding-system) |
| 1045 | (file-name-coding-system nnmail-pathname-coding-system)) |
| 1046 | (with-temp-file (nnheader-concat gnus-agent-directory "lib/servers") |
| 1047 | (prin1 gnus-agent-covered-methods |
| 1048 | (current-buffer))))) |
| 1049 | |
| 1050 | ;;; |
| 1051 | ;;; Summary commands |
| 1052 | ;;; |
| 1053 | |
| 1054 | (defun gnus-agent-mark-article (n &optional unmark) |
| 1055 | "Mark the next N articles as downloadable. |
| 1056 | If N is negative, mark backward instead. If UNMARK is non-nil, remove |
| 1057 | the mark instead. The difference between N and the actual number of |
| 1058 | articles marked is returned." |
| 1059 | (interactive "p") |
| 1060 | (let ((backward (< n 0)) |
| 1061 | (n (abs n))) |
| 1062 | (while (and |
| 1063 | (> n 0) |
| 1064 | (progn |
| 1065 | (gnus-summary-set-agent-mark |
| 1066 | (gnus-summary-article-number) unmark) |
| 1067 | (zerop (gnus-summary-next-subject (if backward -1 1) nil t)))) |
| 1068 | (setq n (1- n))) |
| 1069 | (when (/= 0 n) |
| 1070 | (gnus-message 7 "No more articles")) |
| 1071 | (gnus-summary-recenter) |
| 1072 | (gnus-summary-position-point) |
| 1073 | n)) |
| 1074 | |
| 1075 | (defun gnus-agent-unmark-article (n) |
| 1076 | "Remove the downloadable mark from the next N articles. |
| 1077 | If N is negative, unmark backward instead. The difference between N and |
| 1078 | the actual number of articles unmarked is returned." |
| 1079 | (interactive "p") |
| 1080 | (gnus-agent-mark-article n t)) |
| 1081 | |
| 1082 | (defun gnus-agent-toggle-mark (n) |
| 1083 | "Toggle the downloadable mark from the next N articles. |
| 1084 | If N is negative, toggle backward instead. The difference between N and |
| 1085 | the actual number of articles toggled is returned." |
| 1086 | (interactive "p") |
| 1087 | (gnus-agent-mark-article n 'toggle)) |
| 1088 | |
| 1089 | (defun gnus-summary-set-agent-mark (article &optional unmark) |
| 1090 | "Mark ARTICLE as downloadable. If UNMARK is nil, article is marked. |
| 1091 | When UNMARK is t, the article is unmarked. For any other value, the |
| 1092 | article's mark is toggled." |
| 1093 | (let ((unmark (cond ((eq nil unmark) |
| 1094 | nil) |
| 1095 | ((eq t unmark) |
| 1096 | t) |
| 1097 | (t |
| 1098 | (memq article gnus-newsgroup-downloadable))))) |
| 1099 | (when (gnus-summary-goto-subject article nil t) |
| 1100 | (gnus-summary-update-mark |
| 1101 | (if unmark |
| 1102 | (progn |
| 1103 | (setq gnus-newsgroup-downloadable |
| 1104 | (delq article gnus-newsgroup-downloadable)) |
| 1105 | (gnus-article-mark article)) |
| 1106 | (setq gnus-newsgroup-downloadable |
| 1107 | (gnus-add-to-sorted-list gnus-newsgroup-downloadable article)) |
| 1108 | gnus-downloadable-mark) |
| 1109 | 'unread)))) |
| 1110 | |
| 1111 | ;;;###autoload |
| 1112 | (defun gnus-agent-get-undownloaded-list () |
| 1113 | "Construct list of articles that have not been downloaded." |
| 1114 | (let ((gnus-command-method (gnus-find-method-for-group gnus-newsgroup-name))) |
| 1115 | (when (set (make-local-variable 'gnus-newsgroup-agentized) |
| 1116 | (gnus-agent-method-p gnus-command-method)) |
| 1117 | (let* ((alist (gnus-agent-load-alist gnus-newsgroup-name)) |
| 1118 | (headers (sort (mapcar (lambda (h) |
| 1119 | (mail-header-number h)) |
| 1120 | gnus-newsgroup-headers) '<)) |
| 1121 | (cached (and gnus-use-cache gnus-newsgroup-cached)) |
| 1122 | (undownloaded (list nil)) |
| 1123 | (tail-undownloaded undownloaded) |
| 1124 | (unfetched (list nil)) |
| 1125 | (tail-unfetched unfetched)) |
| 1126 | (while (and alist headers) |
| 1127 | (let ((a (caar alist)) |
| 1128 | (h (car headers))) |
| 1129 | (cond ((< a h) |
| 1130 | ;; Ignore IDs in the alist that are not being |
| 1131 | ;; displayed in the summary. |
| 1132 | (setq alist (cdr alist))) |
| 1133 | ((> a h) |
| 1134 | ;; Headers that are not in the alist should be |
| 1135 | ;; fictious (see nnagent-retrieve-headers); they |
| 1136 | ;; imply that this article isn't in the agent. |
| 1137 | (gnus-agent-append-to-list tail-undownloaded h) |
| 1138 | (gnus-agent-append-to-list tail-unfetched h) |
| 1139 | (setq headers (cdr headers))) |
| 1140 | ((cdar alist) |
| 1141 | (setq alist (cdr alist)) |
| 1142 | (setq headers (cdr headers)) |
| 1143 | nil ; ignore already downloaded |
| 1144 | ) |
| 1145 | (t |
| 1146 | (setq alist (cdr alist)) |
| 1147 | (setq headers (cdr headers)) |
| 1148 | |
| 1149 | ;; This article isn't in the agent. Check to see |
| 1150 | ;; if it is in the cache. If it is, it's been |
| 1151 | ;; downloaded. |
| 1152 | (while (and cached (< (car cached) a)) |
| 1153 | (setq cached (cdr cached))) |
| 1154 | (unless (equal a (car cached)) |
| 1155 | (gnus-agent-append-to-list tail-undownloaded a)))))) |
| 1156 | |
| 1157 | (while headers |
| 1158 | (let ((num (pop headers))) |
| 1159 | (gnus-agent-append-to-list tail-undownloaded num) |
| 1160 | (gnus-agent-append-to-list tail-unfetched num))) |
| 1161 | |
| 1162 | (setq gnus-newsgroup-undownloaded (cdr undownloaded) |
| 1163 | gnus-newsgroup-unfetched (cdr unfetched)))))) |
| 1164 | |
| 1165 | (defun gnus-agent-catchup () |
| 1166 | "Mark as read all unhandled articles. |
| 1167 | An article is unhandled if it is neither cached, nor downloaded, nor |
| 1168 | downloadable." |
| 1169 | (interactive) |
| 1170 | (save-excursion |
| 1171 | (let ((articles gnus-newsgroup-undownloaded)) |
| 1172 | (when (or gnus-newsgroup-downloadable |
| 1173 | gnus-newsgroup-cached) |
| 1174 | (setq articles (gnus-sorted-ndifference |
| 1175 | (gnus-sorted-ndifference |
| 1176 | (gnus-copy-sequence articles) |
| 1177 | gnus-newsgroup-downloadable) |
| 1178 | gnus-newsgroup-cached))) |
| 1179 | |
| 1180 | (while articles |
| 1181 | (gnus-summary-mark-article |
| 1182 | (pop articles) gnus-catchup-mark))) |
| 1183 | (gnus-summary-position-point))) |
| 1184 | |
| 1185 | (defun gnus-agent-summary-fetch-series () |
| 1186 | (interactive) |
| 1187 | (when gnus-newsgroup-processable |
| 1188 | (setq gnus-newsgroup-downloadable |
| 1189 | (let* ((dl gnus-newsgroup-downloadable) |
| 1190 | (processable (sort (gnus-copy-sequence gnus-newsgroup-processable) '<)) |
| 1191 | (gnus-newsgroup-downloadable processable)) |
| 1192 | (gnus-agent-summary-fetch-group) |
| 1193 | |
| 1194 | ;; For each article that I processed that is no longer |
| 1195 | ;; undownloaded, remove its processable mark. |
| 1196 | |
| 1197 | (mapc #'gnus-summary-remove-process-mark |
| 1198 | (gnus-sorted-ndifference gnus-newsgroup-processable gnus-newsgroup-undownloaded)) |
| 1199 | |
| 1200 | ;; The preceeding call to (gnus-agent-summary-fetch-group) |
| 1201 | ;; updated the temporary gnus-newsgroup-downloadable to |
| 1202 | ;; remove each article successfully fetched. Now, I |
| 1203 | ;; update the real gnus-newsgroup-downloadable to only |
| 1204 | ;; include undownloaded articles. |
| 1205 | (gnus-sorted-ndifference dl (gnus-sorted-ndifference processable gnus-newsgroup-undownloaded)))))) |
| 1206 | |
| 1207 | (defun gnus-agent-summary-fetch-group (&optional all) |
| 1208 | "Fetch the downloadable articles in the group. |
| 1209 | Optional arg ALL, if non-nil, means to fetch all articles." |
| 1210 | (interactive "P") |
| 1211 | (let ((articles |
| 1212 | (if all gnus-newsgroup-articles |
| 1213 | gnus-newsgroup-downloadable)) |
| 1214 | (gnus-command-method (gnus-find-method-for-group gnus-newsgroup-name)) |
| 1215 | fetched-articles) |
| 1216 | (gnus-agent-while-plugged |
| 1217 | (unless articles |
| 1218 | (error "No articles to download")) |
| 1219 | (gnus-agent-with-fetch |
| 1220 | (setq gnus-newsgroup-undownloaded |
| 1221 | (gnus-sorted-ndifference |
| 1222 | gnus-newsgroup-undownloaded |
| 1223 | (setq fetched-articles |
| 1224 | (gnus-agent-fetch-articles |
| 1225 | gnus-newsgroup-name articles))))) |
| 1226 | (save-excursion |
| 1227 | (dolist (article articles) |
| 1228 | (let ((was-marked-downloadable |
| 1229 | (memq article gnus-newsgroup-downloadable))) |
| 1230 | (cond (gnus-agent-mark-unread-after-downloaded |
| 1231 | (setq gnus-newsgroup-downloadable |
| 1232 | (delq article gnus-newsgroup-downloadable)) |
| 1233 | |
| 1234 | (gnus-summary-mark-article article gnus-unread-mark)) |
| 1235 | (was-marked-downloadable |
| 1236 | (gnus-summary-set-agent-mark article t))) |
| 1237 | (when (gnus-summary-goto-subject article nil t) |
| 1238 | (gnus-summary-update-download-mark article)))))) |
| 1239 | fetched-articles)) |
| 1240 | |
| 1241 | (defun gnus-agent-fetch-selected-article () |
| 1242 | "Fetch the current article as it is selected. |
| 1243 | This can be added to `gnus-select-article-hook' or |
| 1244 | `gnus-mark-article-hook'." |
| 1245 | (let ((gnus-command-method gnus-current-select-method)) |
| 1246 | (when (and gnus-plugged (gnus-agent-method-p gnus-command-method)) |
| 1247 | (when (gnus-agent-fetch-articles |
| 1248 | gnus-newsgroup-name |
| 1249 | (list gnus-current-article)) |
| 1250 | (setq gnus-newsgroup-undownloaded |
| 1251 | (delq gnus-current-article gnus-newsgroup-undownloaded)) |
| 1252 | (gnus-summary-update-download-mark gnus-current-article))))) |
| 1253 | |
| 1254 | ;;; |
| 1255 | ;;; Internal functions |
| 1256 | ;;; |
| 1257 | |
| 1258 | (defun gnus-agent-synchronize-group-flags (group actions server) |
| 1259 | "Update a plugged group by performing the indicated actions." |
| 1260 | (let* ((gnus-command-method (gnus-server-to-method server)) |
| 1261 | (info |
| 1262 | ;; This initializer is required as gnus-request-set-mark |
| 1263 | ;; calls gnus-group-real-name to strip off the host name |
| 1264 | ;; before calling the backend. Now that the backend is |
| 1265 | ;; trying to call gnus-request-set-mark, I have to |
| 1266 | ;; reconstruct the original group name. |
| 1267 | (or (gnus-get-info group) |
| 1268 | (gnus-get-info |
| 1269 | (setq group (gnus-group-full-name |
| 1270 | group gnus-command-method)))))) |
| 1271 | (gnus-request-set-mark group actions) |
| 1272 | |
| 1273 | (when info |
| 1274 | (dolist (action actions) |
| 1275 | (let ((range (nth 0 action)) |
| 1276 | (what (nth 1 action)) |
| 1277 | (marks (nth 2 action))) |
| 1278 | (dolist (mark marks) |
| 1279 | (cond ((eq mark 'read) |
| 1280 | (gnus-info-set-read |
| 1281 | info |
| 1282 | (funcall (if (eq what 'add) |
| 1283 | 'gnus-range-add |
| 1284 | 'gnus-remove-from-range) |
| 1285 | (gnus-info-read info) |
| 1286 | range)) |
| 1287 | (gnus-get-unread-articles-in-group |
| 1288 | info |
| 1289 | (gnus-active (gnus-info-group info)))) |
| 1290 | ((memq mark '(tick)) |
| 1291 | (let ((info-marks (assoc mark (gnus-info-marks info)))) |
| 1292 | (unless info-marks |
| 1293 | (gnus-info-set-marks info (cons (setq info-marks (list mark)) (gnus-info-marks info)))) |
| 1294 | (setcdr info-marks (funcall (if (eq what 'add) |
| 1295 | 'gnus-range-add |
| 1296 | 'gnus-remove-from-range) |
| 1297 | (cdr info-marks) |
| 1298 | range)))))))) |
| 1299 | |
| 1300 | ;;Marks can be synchronized at any time by simply toggling from |
| 1301 | ;;unplugged to plugged. If that is what is happening right now, make |
| 1302 | ;;sure that the group buffer is up to date. |
| 1303 | (when (gnus-buffer-live-p gnus-group-buffer) |
| 1304 | (gnus-group-update-group group t))) |
| 1305 | nil)) |
| 1306 | |
| 1307 | (defun gnus-agent-save-active (method) |
| 1308 | (when (gnus-agent-method-p method) |
| 1309 | (let* ((gnus-command-method method) |
| 1310 | (new (gnus-make-hashtable (count-lines (point-min) (point-max)))) |
| 1311 | (file (gnus-agent-lib-file "active"))) |
| 1312 | (gnus-active-to-gnus-format nil new) |
| 1313 | (gnus-agent-write-active file new) |
| 1314 | (erase-buffer) |
| 1315 | (let ((nnheader-file-coding-system gnus-agent-file-coding-system)) |
| 1316 | (nnheader-insert-file-contents file))))) |
| 1317 | |
| 1318 | (defun gnus-agent-write-active (file new) |
| 1319 | (gnus-make-directory (file-name-directory file)) |
| 1320 | (let ((nnmail-active-file-coding-system gnus-agent-file-coding-system)) |
| 1321 | ;; The hashtable contains real names of groups. However, do NOT |
| 1322 | ;; add the foreign server prefix as gnus-active-to-gnus-format |
| 1323 | ;; will add it while reading the file. |
| 1324 | (gnus-write-active-file file new nil))) |
| 1325 | |
| 1326 | ;;;###autoload |
| 1327 | (defun gnus-agent-possibly-alter-active (group active &optional info) |
| 1328 | "Possibly expand a group's active range to include articles |
| 1329 | downloaded into the agent." |
| 1330 | (let* ((gnus-command-method (or gnus-command-method |
| 1331 | (gnus-find-method-for-group group)))) |
| 1332 | (when (gnus-agent-method-p gnus-command-method) |
| 1333 | (let* ((local (gnus-agent-get-local group)) |
| 1334 | (active-min (or (car active) 0)) |
| 1335 | (active-max (or (cdr active) 0)) |
| 1336 | (agent-min (or (car local) active-min)) |
| 1337 | (agent-max (or (cdr local) active-max))) |
| 1338 | |
| 1339 | (when (< agent-min active-min) |
| 1340 | (setcar active agent-min)) |
| 1341 | |
| 1342 | (when (> agent-max active-max) |
| 1343 | (setcdr active agent-max)) |
| 1344 | |
| 1345 | (when (and info (< agent-max (- active-min 100))) |
| 1346 | ;; I'm expanding the active range by such a large amount |
| 1347 | ;; that there is a gap of more than 100 articles between the |
| 1348 | ;; last article known to the agent and the first article |
| 1349 | ;; currently available on the server. This gap contains |
| 1350 | ;; articles that have been lost, mark them as read so that |
| 1351 | ;; gnus doesn't waste resources trying to fetch them. |
| 1352 | |
| 1353 | ;; NOTE: I don't do this for smaller gaps (< 100) as I don't |
| 1354 | ;; want to modify the local file everytime someone restarts |
| 1355 | ;; gnus. The small gap will cause a tiny performance hit |
| 1356 | ;; when gnus tries, and fails, to retrieve the articles. |
| 1357 | ;; Still that should be smaller than opening a buffer, |
| 1358 | ;; printing this list to the buffer, and then writing it to a |
| 1359 | ;; file. |
| 1360 | |
| 1361 | (let ((read (gnus-info-read info))) |
| 1362 | (gnus-info-set-read |
| 1363 | info |
| 1364 | (gnus-range-add |
| 1365 | read |
| 1366 | (list (cons (1+ agent-max) |
| 1367 | (1- active-min)))))) |
| 1368 | |
| 1369 | ;; Lie about the agent's local range for this group to |
| 1370 | ;; disable the set read each time this server is opened. |
| 1371 | ;; NOTE: Opening this group will restore the valid local |
| 1372 | ;; range but it will also expand the local range to |
| 1373 | ;; incompass the new active range. |
| 1374 | (gnus-agent-set-local group agent-min (1- active-min))))))) |
| 1375 | |
| 1376 | (defun gnus-agent-save-group-info (method group active) |
| 1377 | "Update a single group's active range in the agent's copy of the server's active file." |
| 1378 | (when (gnus-agent-method-p method) |
| 1379 | (let* ((gnus-command-method (or method gnus-command-method)) |
| 1380 | (coding-system-for-write nnheader-file-coding-system) |
| 1381 | (file-name-coding-system nnmail-pathname-coding-system) |
| 1382 | (file (gnus-agent-lib-file "active")) |
| 1383 | oactive-min oactive-max) |
| 1384 | (gnus-make-directory (file-name-directory file)) |
| 1385 | (with-temp-file file |
| 1386 | ;; Emacs got problem to match non-ASCII group in multibyte buffer. |
| 1387 | (mm-disable-multibyte) |
| 1388 | (when (file-exists-p file) |
| 1389 | (nnheader-insert-file-contents file) |
| 1390 | |
| 1391 | (goto-char (point-min)) |
| 1392 | (when (re-search-forward |
| 1393 | (concat "^" (regexp-quote group) " ") nil t) |
| 1394 | (save-excursion |
| 1395 | (setq oactive-max (read (current-buffer)) ;; max |
| 1396 | oactive-min (read (current-buffer)))) ;; min |
| 1397 | (gnus-delete-line))) |
| 1398 | (when active |
| 1399 | (insert (format "%S %d %d y\n" (intern group) |
| 1400 | (max (or oactive-max (cdr active)) (cdr active)) |
| 1401 | (min (or oactive-min (car active)) (car active)))) |
| 1402 | (goto-char (point-max)) |
| 1403 | (while (search-backward "\\." nil t) |
| 1404 | (delete-char 1))))))) |
| 1405 | |
| 1406 | (defun gnus-agent-get-group-info (method group) |
| 1407 | "Get a single group's active range in the agent's copy of the server's active file." |
| 1408 | (when (gnus-agent-method-p method) |
| 1409 | (let* ((gnus-command-method (or method gnus-command-method)) |
| 1410 | (coding-system-for-write nnheader-file-coding-system) |
| 1411 | (file-name-coding-system nnmail-pathname-coding-system) |
| 1412 | (file (gnus-agent-lib-file "active")) |
| 1413 | oactive-min oactive-max) |
| 1414 | (gnus-make-directory (file-name-directory file)) |
| 1415 | (with-temp-buffer |
| 1416 | ;; Emacs got problem to match non-ASCII group in multibyte buffer. |
| 1417 | (mm-disable-multibyte) |
| 1418 | (when (file-exists-p file) |
| 1419 | (nnheader-insert-file-contents file) |
| 1420 | |
| 1421 | (goto-char (point-min)) |
| 1422 | (when (re-search-forward |
| 1423 | (concat "^" (regexp-quote group) " ") nil t) |
| 1424 | (save-excursion |
| 1425 | (setq oactive-max (read (current-buffer)) ;; max |
| 1426 | oactive-min (read (current-buffer))) ;; min |
| 1427 | (cons oactive-min oactive-max)))))))) |
| 1428 | |
| 1429 | (defvar gnus-agent-decoded-group-names nil |
| 1430 | "Alist of non-ASCII group names and decoded ones.") |
| 1431 | |
| 1432 | (defun gnus-agent-decoded-group-name (group) |
| 1433 | "Return a decoded group name of GROUP." |
| 1434 | (or (cdr (assoc group gnus-agent-decoded-group-names)) |
| 1435 | (if (string-match "[^\000-\177]" group) |
| 1436 | (let ((decoded (gnus-group-decoded-name group))) |
| 1437 | (push (cons group decoded) gnus-agent-decoded-group-names) |
| 1438 | decoded) |
| 1439 | group))) |
| 1440 | |
| 1441 | (defun gnus-agent-group-path (group) |
| 1442 | "Translate GROUP into a file name." |
| 1443 | |
| 1444 | ;; NOTE: This is what nnmail-group-pathname does as of Apr 2003. |
| 1445 | ;; The two methods must be kept synchronized, which is why |
| 1446 | ;; gnus-agent-group-pathname was added. |
| 1447 | |
| 1448 | (setq group |
| 1449 | (nnheader-translate-file-chars |
| 1450 | (nnheader-replace-duplicate-chars-in-string |
| 1451 | (nnheader-replace-chars-in-string |
| 1452 | (gnus-group-real-name (gnus-agent-decoded-group-name group)) |
| 1453 | ?/ ?_) |
| 1454 | ?. ?_))) |
| 1455 | (if (or nnmail-use-long-file-names |
| 1456 | (file-directory-p (expand-file-name group (gnus-agent-directory)))) |
| 1457 | group |
| 1458 | (nnheader-replace-chars-in-string group ?. ?/))) |
| 1459 | |
| 1460 | (defun gnus-agent-group-pathname (group) |
| 1461 | "Translate GROUP into a file name." |
| 1462 | ;; nnagent uses nnmail-group-pathname to read articles while |
| 1463 | ;; unplugged. The agent must, therefore, use the same directory |
| 1464 | ;; while plugged. |
| 1465 | (nnmail-group-pathname |
| 1466 | (gnus-group-real-name (gnus-agent-decoded-group-name group)) |
| 1467 | (if gnus-command-method |
| 1468 | (gnus-agent-directory) |
| 1469 | (let ((gnus-command-method (gnus-find-method-for-group group))) |
| 1470 | (gnus-agent-directory))))) |
| 1471 | |
| 1472 | (defun gnus-agent-get-function (method) |
| 1473 | (if (gnus-online method) |
| 1474 | (car method) |
| 1475 | (require 'nnagent) |
| 1476 | 'nnagent)) |
| 1477 | |
| 1478 | (defun gnus-agent-covered-methods () |
| 1479 | "Return the subset of methods that are covered by the agent." |
| 1480 | (delq nil (mapcar #'gnus-server-to-method gnus-agent-covered-methods))) |
| 1481 | |
| 1482 | ;;; History functions |
| 1483 | |
| 1484 | (defun gnus-agent-history-buffer () |
| 1485 | (cdr (assoc (gnus-agent-method) gnus-agent-history-buffers))) |
| 1486 | |
| 1487 | (defun gnus-agent-open-history () |
| 1488 | (save-excursion |
| 1489 | (push (cons (gnus-agent-method) |
| 1490 | (set-buffer (gnus-get-buffer-create |
| 1491 | (format " *Gnus agent %s history*" |
| 1492 | (gnus-agent-method))))) |
| 1493 | gnus-agent-history-buffers) |
| 1494 | (mm-disable-multibyte) ;; everything is binary |
| 1495 | (erase-buffer) |
| 1496 | (insert "\n") |
| 1497 | (let ((file (gnus-agent-lib-file "history"))) |
| 1498 | (when (file-exists-p file) |
| 1499 | (nnheader-insert-file-contents file)) |
| 1500 | (set (make-local-variable 'gnus-agent-file-name) file)))) |
| 1501 | |
| 1502 | (defun gnus-agent-close-history () |
| 1503 | (when (gnus-buffer-live-p gnus-agent-current-history) |
| 1504 | (kill-buffer gnus-agent-current-history) |
| 1505 | (setq gnus-agent-history-buffers |
| 1506 | (delq (assoc (gnus-agent-method) gnus-agent-history-buffers) |
| 1507 | gnus-agent-history-buffers)))) |
| 1508 | |
| 1509 | ;;; |
| 1510 | ;;; Fetching |
| 1511 | ;;; |
| 1512 | |
| 1513 | (defun gnus-agent-fetch-articles (group articles) |
| 1514 | "Fetch ARTICLES from GROUP and put them into the Agent." |
| 1515 | (when articles |
| 1516 | (gnus-agent-load-alist group) |
| 1517 | (let* ((alist gnus-agent-article-alist) |
| 1518 | (headers (if (< (length articles) 2) nil gnus-newsgroup-headers)) |
| 1519 | (selected-sets (list nil)) |
| 1520 | (current-set-size 0) |
| 1521 | article |
| 1522 | header-number) |
| 1523 | ;; Check each article |
| 1524 | (while (setq article (pop articles)) |
| 1525 | ;; Skip alist entries preceeding this article |
| 1526 | (while (> article (or (caar alist) (1+ article))) |
| 1527 | (setq alist (cdr alist))) |
| 1528 | |
| 1529 | ;; Prune off articles that we have already fetched. |
| 1530 | (unless (and (eq article (caar alist)) |
| 1531 | (cdar alist)) |
| 1532 | ;; Skip headers preceeding this article |
| 1533 | (while (> article |
| 1534 | (setq header-number |
| 1535 | (let* ((header (car headers))) |
| 1536 | (if header |
| 1537 | (mail-header-number header) |
| 1538 | (1+ article))))) |
| 1539 | (setq headers (cdr headers))) |
| 1540 | |
| 1541 | ;; Add this article to the current set |
| 1542 | (setcar selected-sets (cons article (car selected-sets))) |
| 1543 | |
| 1544 | ;; Update the set size, when the set is too large start a |
| 1545 | ;; new one. I do this after adding the article as I want at |
| 1546 | ;; least one article in each set. |
| 1547 | (when (< gnus-agent-max-fetch-size |
| 1548 | (setq current-set-size |
| 1549 | (+ current-set-size |
| 1550 | (if (= header-number article) |
| 1551 | (let ((char-size (mail-header-chars |
| 1552 | (car headers)))) |
| 1553 | (if (<= char-size 0) |
| 1554 | ;; The char size was missing/invalid, |
| 1555 | ;; assume a worst-case situation of |
| 1556 | ;; 65 char/line. If the line count |
| 1557 | ;; is missing, arbitrarily assume a |
| 1558 | ;; size of 1000 characters. |
| 1559 | (max (* 65 (mail-header-lines |
| 1560 | (car headers))) |
| 1561 | 1000) |
| 1562 | char-size)) |
| 1563 | 0)))) |
| 1564 | (setcar selected-sets (nreverse (car selected-sets))) |
| 1565 | (setq selected-sets (cons nil selected-sets) |
| 1566 | current-set-size 0)))) |
| 1567 | |
| 1568 | (when (or (cdr selected-sets) (car selected-sets)) |
| 1569 | (let* ((fetched-articles (list nil)) |
| 1570 | (tail-fetched-articles fetched-articles) |
| 1571 | (dir (gnus-agent-group-pathname group)) |
| 1572 | (date (time-to-days (current-time))) |
| 1573 | (case-fold-search t) |
| 1574 | pos crosses id |
| 1575 | (file-name-coding-system nnmail-pathname-coding-system)) |
| 1576 | |
| 1577 | (setcar selected-sets (nreverse (car selected-sets))) |
| 1578 | (setq selected-sets (nreverse selected-sets)) |
| 1579 | |
| 1580 | (gnus-make-directory dir) |
| 1581 | (gnus-message 7 "Fetching articles for %s..." |
| 1582 | (gnus-agent-decoded-group-name group)) |
| 1583 | |
| 1584 | (unwind-protect |
| 1585 | (while (setq articles (pop selected-sets)) |
| 1586 | ;; Fetch the articles from the backend. |
| 1587 | (if (gnus-check-backend-function 'retrieve-articles group) |
| 1588 | (setq pos (gnus-retrieve-articles articles group)) |
| 1589 | (with-temp-buffer |
| 1590 | (let (article) |
| 1591 | (while (setq article (pop articles)) |
| 1592 | (gnus-message 10 "Fetching article %s for %s..." |
| 1593 | article |
| 1594 | (gnus-agent-decoded-group-name group)) |
| 1595 | (when (or |
| 1596 | (gnus-backlog-request-article group article |
| 1597 | nntp-server-buffer) |
| 1598 | (gnus-request-article article group)) |
| 1599 | (goto-char (point-max)) |
| 1600 | (push (cons article (point)) pos) |
| 1601 | (insert-buffer-substring nntp-server-buffer))) |
| 1602 | (copy-to-buffer |
| 1603 | nntp-server-buffer (point-min) (point-max)) |
| 1604 | (setq pos (nreverse pos))))) |
| 1605 | ;; Then save these articles into the Agent. |
| 1606 | (with-current-buffer nntp-server-buffer |
| 1607 | (while pos |
| 1608 | (narrow-to-region (cdar pos) (or (cdadr pos) (point-max))) |
| 1609 | (goto-char (point-min)) |
| 1610 | (unless (eobp) ;; Don't save empty articles. |
| 1611 | (when (search-forward "\n\n" nil t) |
| 1612 | (when (search-backward "\nXrefs: " nil t) |
| 1613 | ;; Handle cross posting. |
| 1614 | (goto-char (match-end 0)) ; move to end of header name |
| 1615 | (skip-chars-forward "^ ") ; skip server name |
| 1616 | (skip-chars-forward " ") |
| 1617 | (setq crosses nil) |
| 1618 | (while (looking-at "\\([^: \n]+\\):\\([0-9]+\\) *") |
| 1619 | (push (cons (buffer-substring (match-beginning 1) |
| 1620 | (match-end 1)) |
| 1621 | (string-to-number |
| 1622 | (buffer-substring (match-beginning 2) |
| 1623 | (match-end 2)))) |
| 1624 | crosses) |
| 1625 | (goto-char (match-end 0))) |
| 1626 | (gnus-agent-crosspost crosses (caar pos) date))) |
| 1627 | (goto-char (point-min)) |
| 1628 | (if (not (re-search-forward |
| 1629 | "^Message-ID: *<\\([^>\n]+\\)>" nil t)) |
| 1630 | (setq id "No-Message-ID-in-article") |
| 1631 | (setq id (buffer-substring |
| 1632 | (match-beginning 1) (match-end 1)))) |
| 1633 | (let ((coding-system-for-write |
| 1634 | gnus-agent-file-coding-system)) |
| 1635 | (write-region (point-min) (point-max) |
| 1636 | (concat dir (number-to-string (caar pos))) |
| 1637 | nil 'silent)) |
| 1638 | |
| 1639 | (gnus-agent-append-to-list |
| 1640 | tail-fetched-articles (caar pos))) |
| 1641 | (widen) |
| 1642 | (setq pos (cdr pos))))) |
| 1643 | |
| 1644 | (gnus-agent-save-alist group (cdr fetched-articles) date) |
| 1645 | (gnus-agent-update-files-total-fetched-for group (cdr fetched-articles)) |
| 1646 | |
| 1647 | (gnus-message 7 "")) |
| 1648 | (cdr fetched-articles)))))) |
| 1649 | |
| 1650 | (defun gnus-agent-unfetch-articles (group articles) |
| 1651 | "Delete ARTICLES that were fetched from GROUP into the agent." |
| 1652 | (when articles |
| 1653 | (gnus-agent-with-refreshed-group |
| 1654 | group |
| 1655 | (gnus-agent-load-alist group) |
| 1656 | (let* ((alist (cons nil gnus-agent-article-alist)) |
| 1657 | (articles (sort articles #'<)) |
| 1658 | (next-possibility alist) |
| 1659 | (delete-this (pop articles))) |
| 1660 | (while (and (cdr next-possibility) delete-this) |
| 1661 | (let ((have-this (caar (cdr next-possibility)))) |
| 1662 | (cond |
| 1663 | ((< delete-this have-this) |
| 1664 | (setq delete-this (pop articles))) |
| 1665 | ((= delete-this have-this) |
| 1666 | (let ((timestamp (cdar (cdr next-possibility)))) |
| 1667 | (when timestamp |
| 1668 | (let* ((file-name (concat (gnus-agent-group-pathname group) |
| 1669 | (number-to-string have-this))) |
| 1670 | (size-file |
| 1671 | (float (or (and gnus-agent-total-fetched-hashtb |
| 1672 | (nth 7 (file-attributes file-name))) |
| 1673 | 0))) |
| 1674 | (file-name-coding-system |
| 1675 | nnmail-pathname-coding-system)) |
| 1676 | (delete-file file-name) |
| 1677 | (gnus-agent-update-files-total-fetched-for |
| 1678 | group (- size-file))))) |
| 1679 | |
| 1680 | (setcdr next-possibility (cddr next-possibility))) |
| 1681 | (t |
| 1682 | (setq next-possibility (cdr next-possibility)))))) |
| 1683 | (setq gnus-agent-article-alist (cdr alist)) |
| 1684 | (gnus-agent-save-alist group))))) |
| 1685 | |
| 1686 | (defun gnus-agent-crosspost (crosses article &optional date) |
| 1687 | (setq date (or date t)) |
| 1688 | |
| 1689 | (let (gnus-agent-article-alist group alist beg end) |
| 1690 | (with-current-buffer gnus-agent-overview-buffer |
| 1691 | (when (nnheader-find-nov-line article) |
| 1692 | (forward-word 1) |
| 1693 | (setq beg (point)) |
| 1694 | (setq end (progn (forward-line 1) (point))))) |
| 1695 | (while crosses |
| 1696 | (setq group (caar crosses)) |
| 1697 | (unless (setq alist (assoc group gnus-agent-group-alist)) |
| 1698 | (push (setq alist (list group (gnus-agent-load-alist (caar crosses)))) |
| 1699 | gnus-agent-group-alist)) |
| 1700 | (setcdr alist (cons (cons (cdar crosses) date) (cdr alist))) |
| 1701 | (with-current-buffer (gnus-get-buffer-create |
| 1702 | (format " *Gnus agent overview %s*"group)) |
| 1703 | (when (= (point-max) (point-min)) |
| 1704 | (push (cons group (current-buffer)) gnus-agent-buffer-alist) |
| 1705 | (ignore-errors |
| 1706 | (let ((file-name-coding-system nnmail-pathname-coding-system)) |
| 1707 | (nnheader-insert-file-contents |
| 1708 | (gnus-agent-article-name ".overview" group))))) |
| 1709 | (nnheader-find-nov-line (string-to-number (cdar crosses))) |
| 1710 | (insert (string-to-number (cdar crosses))) |
| 1711 | (insert-buffer-substring gnus-agent-overview-buffer beg end) |
| 1712 | (gnus-agent-check-overview-buffer)) |
| 1713 | (setq crosses (cdr crosses))))) |
| 1714 | |
| 1715 | (defun gnus-agent-backup-overview-buffer () |
| 1716 | (when gnus-newsgroup-name |
| 1717 | (let ((root (gnus-agent-article-name ".overview" gnus-newsgroup-name)) |
| 1718 | (cnt 0) |
| 1719 | name |
| 1720 | (file-name-coding-system nnmail-pathname-coding-system)) |
| 1721 | (while (file-exists-p |
| 1722 | (setq name (concat root "~" |
| 1723 | (int-to-string (setq cnt (1+ cnt))) "~")))) |
| 1724 | (write-region (point-min) (point-max) name nil 'no-msg) |
| 1725 | (gnus-message 1 "Created backup copy of overview in %s." name))) |
| 1726 | t) |
| 1727 | |
| 1728 | (defun gnus-agent-check-overview-buffer (&optional buffer) |
| 1729 | "Check the overview file given for sanity. |
| 1730 | In particular, checks that the file is sorted by article number |
| 1731 | and that there are no duplicates." |
| 1732 | (let ((prev-num -1) |
| 1733 | (backed-up nil)) |
| 1734 | (save-excursion |
| 1735 | (when buffer |
| 1736 | (set-buffer buffer)) |
| 1737 | (save-restriction |
| 1738 | (widen) |
| 1739 | (goto-char (point-min)) |
| 1740 | |
| 1741 | (while (< (point) (point-max)) |
| 1742 | (let ((p (point)) |
| 1743 | (cur (condition-case nil |
| 1744 | (read (current-buffer)) |
| 1745 | (error nil)))) |
| 1746 | (cond |
| 1747 | ((or (not (integerp cur)) |
| 1748 | (not (eq (char-after) ?\t))) |
| 1749 | (or backed-up |
| 1750 | (setq backed-up (gnus-agent-backup-overview-buffer))) |
| 1751 | (gnus-message 1 |
| 1752 | "Overview buffer contains garbage '%s'." |
| 1753 | (buffer-substring |
| 1754 | p (point-at-eol)))) |
| 1755 | ((= cur prev-num) |
| 1756 | (or backed-up |
| 1757 | (setq backed-up (gnus-agent-backup-overview-buffer))) |
| 1758 | (gnus-message 1 |
| 1759 | "Duplicate overview line for %d" cur) |
| 1760 | (delete-region p (progn (forward-line 1) (point)))) |
| 1761 | ((< cur prev-num) |
| 1762 | (or backed-up |
| 1763 | (setq backed-up (gnus-agent-backup-overview-buffer))) |
| 1764 | (gnus-message 1 "Overview buffer not sorted!") |
| 1765 | (sort-numeric-fields 1 (point-min) (point-max)) |
| 1766 | (goto-char (point-min)) |
| 1767 | (setq prev-num -1)) |
| 1768 | (t |
| 1769 | (setq prev-num cur))) |
| 1770 | (forward-line 1))))))) |
| 1771 | |
| 1772 | (defun gnus-agent-flush-server (&optional server-or-method) |
| 1773 | "Flush all agent index files for every subscribed group within |
| 1774 | the given SERVER-OR-METHOD. When called with nil, the current |
| 1775 | value of gnus-command-method identifies the server." |
| 1776 | (let* ((gnus-command-method (if server-or-method |
| 1777 | (gnus-server-to-method server-or-method) |
| 1778 | gnus-command-method)) |
| 1779 | (alist gnus-newsrc-alist)) |
| 1780 | (while alist |
| 1781 | (let ((entry (pop alist))) |
| 1782 | (when (gnus-methods-equal-p gnus-command-method (gnus-info-method entry)) |
| 1783 | (gnus-agent-flush-group (gnus-info-group entry))))))) |
| 1784 | |
| 1785 | (defun gnus-agent-flush-group (group) |
| 1786 | "Flush the agent's index files such that the GROUP no longer |
| 1787 | appears to have any local content. The actual content, the |
| 1788 | article files, may then be deleted using gnus-agent-expire-group. |
| 1789 | If flushing was a mistake, the gnus-agent-regenerate-group method |
| 1790 | provides an undo mechanism by reconstructing the index files from |
| 1791 | the article files." |
| 1792 | (interactive (list (gnus-agent-read-group))) |
| 1793 | |
| 1794 | (let* ((gnus-command-method (or gnus-command-method |
| 1795 | (gnus-find-method-for-group group))) |
| 1796 | (overview (gnus-agent-article-name ".overview" group)) |
| 1797 | (agentview (gnus-agent-article-name ".agentview" group)) |
| 1798 | (file-name-coding-system nnmail-pathname-coding-system)) |
| 1799 | |
| 1800 | (if (file-exists-p overview) |
| 1801 | (delete-file overview)) |
| 1802 | (if (file-exists-p agentview) |
| 1803 | (delete-file agentview)) |
| 1804 | |
| 1805 | (gnus-agent-update-view-total-fetched-for group nil gnus-command-method) |
| 1806 | (gnus-agent-update-view-total-fetched-for group t gnus-command-method) |
| 1807 | |
| 1808 | ;(gnus-agent-set-local group nil nil) |
| 1809 | ;(gnus-agent-save-local t) |
| 1810 | (gnus-agent-save-group-info nil group nil))) |
| 1811 | |
| 1812 | (defun gnus-agent-flush-cache () |
| 1813 | "Flush the agent's index files such that the group no longer |
| 1814 | appears to have any local content. The actual content, the |
| 1815 | article files, is then deleted using gnus-agent-expire-group. The |
| 1816 | gnus-agent-regenerate-group method provides an undo mechanism by |
| 1817 | reconstructing the index files from the article files." |
| 1818 | (interactive) |
| 1819 | (save-excursion |
| 1820 | (let ((file-name-coding-system nnmail-pathname-coding-system)) |
| 1821 | (while gnus-agent-buffer-alist |
| 1822 | (set-buffer (cdar gnus-agent-buffer-alist)) |
| 1823 | (let ((coding-system-for-write gnus-agent-file-coding-system)) |
| 1824 | (write-region (point-min) (point-max) |
| 1825 | (gnus-agent-article-name ".overview" |
| 1826 | (caar gnus-agent-buffer-alist)) |
| 1827 | nil 'silent)) |
| 1828 | (setq gnus-agent-buffer-alist (cdr gnus-agent-buffer-alist))) |
| 1829 | (while gnus-agent-group-alist |
| 1830 | (with-temp-file (gnus-agent-article-name |
| 1831 | ".agentview" (caar gnus-agent-group-alist)) |
| 1832 | (princ (cdar gnus-agent-group-alist)) |
| 1833 | (insert "\n") |
| 1834 | (princ 1 (current-buffer)) |
| 1835 | (insert "\n")) |
| 1836 | (setq gnus-agent-group-alist (cdr gnus-agent-group-alist)))))) |
| 1837 | |
| 1838 | ;;;###autoload |
| 1839 | (defun gnus-agent-find-parameter (group symbol) |
| 1840 | "Search for GROUPs SYMBOL in the group's parameters, the group's |
| 1841 | topic parameters, the group's category, or the customizable |
| 1842 | variables. Returns the first non-nil value found." |
| 1843 | (or (gnus-group-find-parameter group symbol t) |
| 1844 | (gnus-group-parameter-value (cdr (gnus-group-category group)) symbol t) |
| 1845 | (symbol-value |
| 1846 | (cdr |
| 1847 | (assq symbol |
| 1848 | '((agent-short-article . gnus-agent-short-article) |
| 1849 | (agent-long-article . gnus-agent-long-article) |
| 1850 | (agent-low-score . gnus-agent-low-score) |
| 1851 | (agent-high-score . gnus-agent-high-score) |
| 1852 | (agent-days-until-old . gnus-agent-expire-days) |
| 1853 | (agent-enable-expiration |
| 1854 | . gnus-agent-enable-expiration) |
| 1855 | (agent-predicate . gnus-agent-predicate))))))) |
| 1856 | |
| 1857 | (defun gnus-agent-fetch-headers (group &optional force) |
| 1858 | "Fetch interesting headers into the agent. The group's overview |
| 1859 | file will be updated to include the headers while a list of available |
| 1860 | article numbers will be returned." |
| 1861 | (let* ((fetch-all (and gnus-agent-consider-all-articles |
| 1862 | ;; Do not fetch all headers if the predicate |
| 1863 | ;; implies that we only consider unread articles. |
| 1864 | (not (gnus-predicate-implies-unread |
| 1865 | (gnus-agent-find-parameter group |
| 1866 | 'agent-predicate))))) |
| 1867 | (articles (if fetch-all |
| 1868 | (if gnus-newsgroup-maximum-articles |
| 1869 | (let ((active (gnus-active group))) |
| 1870 | (gnus-uncompress-range |
| 1871 | (cons (max (car active) |
| 1872 | (- (cdr active) |
| 1873 | gnus-newsgroup-maximum-articles |
| 1874 | -1)) |
| 1875 | (cdr active)))) |
| 1876 | (gnus-uncompress-range (gnus-active group))) |
| 1877 | (gnus-list-of-unread-articles group))) |
| 1878 | (gnus-decode-encoded-word-function 'identity) |
| 1879 | (gnus-decode-encoded-address-function 'identity) |
| 1880 | (file (gnus-agent-article-name ".overview" group)) |
| 1881 | (file-name-coding-system nnmail-pathname-coding-system)) |
| 1882 | |
| 1883 | (unless fetch-all |
| 1884 | ;; Add articles with marks to the list of article headers we want to |
| 1885 | ;; fetch. Don't fetch articles solely on the basis of a recent or seen |
| 1886 | ;; mark, but do fetch recent or seen articles if they have other, more |
| 1887 | ;; interesting marks. (We have to fetch articles with boring marks |
| 1888 | ;; because otherwise the agent will remove their marks.) |
| 1889 | (dolist (arts (gnus-info-marks (gnus-get-info group))) |
| 1890 | (unless (memq (car arts) '(seen recent killed cache)) |
| 1891 | (setq articles (gnus-range-add articles (cdr arts))))) |
| 1892 | (setq articles (sort (gnus-uncompress-sequence articles) '<))) |
| 1893 | |
| 1894 | ;; At this point, I have the list of articles to consider for |
| 1895 | ;; fetching. This is the list that I'll return to my caller. Some |
| 1896 | ;; of these articles may have already been fetched. That's OK as |
| 1897 | ;; the fetch article code will filter those out. Internally, I'll |
| 1898 | ;; filter this list to just those articles whose headers need to |
| 1899 | ;; be fetched. |
| 1900 | (let ((articles articles)) |
| 1901 | ;; Remove known articles. |
| 1902 | (when (and (or gnus-agent-cache |
| 1903 | (not gnus-plugged)) |
| 1904 | (gnus-agent-load-alist group)) |
| 1905 | ;; Remove articles marked as downloaded. |
| 1906 | (if fetch-all |
| 1907 | ;; I want to fetch all headers in the active range. |
| 1908 | ;; Therefore, exclude only those headers that are in the |
| 1909 | ;; article alist. |
| 1910 | ;; NOTE: This is probably NOT what I want to do after |
| 1911 | ;; agent expiration in this group. |
| 1912 | (setq articles (gnus-agent-uncached-articles articles group)) |
| 1913 | |
| 1914 | ;; I want to only fetch those headers that have never been |
| 1915 | ;; fetched. Therefore, exclude all headers that are, or |
| 1916 | ;; WERE, in the article alist. |
| 1917 | (let ((low (1+ (caar (last gnus-agent-article-alist)))) |
| 1918 | (high (cdr (gnus-active group)))) |
| 1919 | ;; Low can be greater than High when the same group is |
| 1920 | ;; fetched twice in the same session {The first fetch will |
| 1921 | ;; fill the article alist such that (last |
| 1922 | ;; gnus-agent-article-alist) equals (cdr (gnus-active |
| 1923 | ;; group))}. The addition of one(the 1+ above) then |
| 1924 | ;; forces Low to be greater than High. When this happens, |
| 1925 | ;; gnus-list-range-intersection returns nil which |
| 1926 | ;; indicates that no headers need to be fetched. -- Kevin |
| 1927 | (setq articles (gnus-list-range-intersection |
| 1928 | articles (list (cons low high))))))) |
| 1929 | |
| 1930 | (gnus-message |
| 1931 | 10 "gnus-agent-fetch-headers: undownloaded articles are '%s'" |
| 1932 | (gnus-compress-sequence articles t)) |
| 1933 | |
| 1934 | (with-current-buffer nntp-server-buffer |
| 1935 | (if articles |
| 1936 | (progn |
| 1937 | (gnus-message 7 "Fetching headers for %s..." |
| 1938 | (gnus-agent-decoded-group-name group)) |
| 1939 | |
| 1940 | ;; Fetch them. |
| 1941 | (gnus-make-directory (nnheader-translate-file-chars |
| 1942 | (file-name-directory file) t)) |
| 1943 | |
| 1944 | (unless (eq 'nov (gnus-retrieve-headers articles group)) |
| 1945 | (nnvirtual-convert-headers)) |
| 1946 | (gnus-agent-check-overview-buffer) |
| 1947 | ;; Move these headers to the overview buffer so that |
| 1948 | ;; gnus-agent-braid-nov can merge them with the contents |
| 1949 | ;; of FILE. |
| 1950 | (copy-to-buffer |
| 1951 | gnus-agent-overview-buffer (point-min) (point-max)) |
| 1952 | ;; NOTE: Call g-a-brand-nov even when the file does not |
| 1953 | ;; exist. As a minimum, it will validate the article |
| 1954 | ;; numbers already in the buffer. |
| 1955 | (gnus-agent-braid-nov group articles file) |
| 1956 | (let ((coding-system-for-write |
| 1957 | gnus-agent-file-coding-system)) |
| 1958 | (gnus-agent-check-overview-buffer) |
| 1959 | (write-region (point-min) (point-max) file nil 'silent)) |
| 1960 | (gnus-agent-update-view-total-fetched-for group t) |
| 1961 | (gnus-agent-save-alist group articles nil) |
| 1962 | articles) |
| 1963 | (ignore-errors |
| 1964 | (erase-buffer) |
| 1965 | (nnheader-insert-file-contents file))))) |
| 1966 | articles)) |
| 1967 | |
| 1968 | (defsubst gnus-agent-read-article-number () |
| 1969 | "Reads the article number at point. Returns nil when a valid article number can not be read." |
| 1970 | |
| 1971 | ;; It is unfortunate but the read function quietly overflows |
| 1972 | ;; integer. As a result, I have to use string operations to test |
| 1973 | ;; for overflow BEFORE calling read. |
| 1974 | (when (looking-at "[0-9]+\t") |
| 1975 | (let ((len (- (match-end 0) (match-beginning 0)))) |
| 1976 | (cond ((< len 9) |
| 1977 | (read (current-buffer))) |
| 1978 | ((= len 9) |
| 1979 | ;; Many 9 digit base-10 numbers can be represented in a 27-bit int |
| 1980 | ;; Back convert from int to string to ensure that this is one of them. |
| 1981 | (let* ((str1 (buffer-substring (match-beginning 0) (1- (match-end 0)))) |
| 1982 | (num (read (current-buffer))) |
| 1983 | (str2 (int-to-string num))) |
| 1984 | (when (equal str1 str2) |
| 1985 | num))))))) |
| 1986 | |
| 1987 | (defsubst gnus-agent-copy-nov-line (article) |
| 1988 | "Copy the indicated ARTICLE from the overview buffer to the nntp server buffer." |
| 1989 | (let (art b e) |
| 1990 | (set-buffer gnus-agent-overview-buffer) |
| 1991 | (while (and (not (eobp)) |
| 1992 | (or (not (setq art (gnus-agent-read-article-number))) |
| 1993 | (< art article))) |
| 1994 | (forward-line 1)) |
| 1995 | (beginning-of-line) |
| 1996 | (if (or (eobp) |
| 1997 | (not (eq article art))) |
| 1998 | (set-buffer nntp-server-buffer) |
| 1999 | (setq b (point)) |
| 2000 | (setq e (progn (forward-line 1) (point))) |
| 2001 | (set-buffer nntp-server-buffer) |
| 2002 | (insert-buffer-substring gnus-agent-overview-buffer b e)))) |
| 2003 | |
| 2004 | (defun gnus-agent-braid-nov (group articles file) |
| 2005 | "Merge agent overview data with given file. |
| 2006 | Takes unvalidated headers for ARTICLES from |
| 2007 | `gnus-agent-overview-buffer' and validated headers from the given |
| 2008 | FILE and places the combined valid headers into |
| 2009 | `nntp-server-buffer'. This function can be used, when file |
| 2010 | doesn't exist, to valid the overview buffer." |
| 2011 | (let (start last) |
| 2012 | (set-buffer gnus-agent-overview-buffer) |
| 2013 | (goto-char (point-min)) |
| 2014 | (set-buffer nntp-server-buffer) |
| 2015 | (erase-buffer) |
| 2016 | (when (file-exists-p file) |
| 2017 | (nnheader-insert-file-contents file)) |
| 2018 | (goto-char (point-max)) |
| 2019 | (forward-line -1) |
| 2020 | |
| 2021 | (unless (or (= (point-min) (point-max)) |
| 2022 | (< (setq last (read (current-buffer))) (car articles))) |
| 2023 | ;; Old and new overlap -- We do it the hard way. |
| 2024 | (when (nnheader-find-nov-line (car articles)) |
| 2025 | ;; Replacing existing NOV entry |
| 2026 | (delete-region (point) (progn (forward-line 1) (point)))) |
| 2027 | (gnus-agent-copy-nov-line (pop articles)) |
| 2028 | |
| 2029 | (ignore-errors |
| 2030 | (while articles |
| 2031 | (while (let ((art (read (current-buffer)))) |
| 2032 | (cond ((< art (car articles)) |
| 2033 | (forward-line 1) |
| 2034 | t) |
| 2035 | ((= art (car articles)) |
| 2036 | (beginning-of-line) |
| 2037 | (delete-region |
| 2038 | (point) (progn (forward-line 1) (point))) |
| 2039 | nil) |
| 2040 | (t |
| 2041 | (beginning-of-line) |
| 2042 | nil)))) |
| 2043 | |
| 2044 | (gnus-agent-copy-nov-line (pop articles))))) |
| 2045 | |
| 2046 | (goto-char (point-max)) |
| 2047 | |
| 2048 | ;; Append the remaining lines |
| 2049 | (when articles |
| 2050 | (when last |
| 2051 | (set-buffer gnus-agent-overview-buffer) |
| 2052 | (setq start (point)) |
| 2053 | (set-buffer nntp-server-buffer)) |
| 2054 | |
| 2055 | (let ((p (point))) |
| 2056 | (insert-buffer-substring gnus-agent-overview-buffer start) |
| 2057 | (goto-char p)) |
| 2058 | |
| 2059 | (setq last (or last -134217728)) |
| 2060 | (while (catch 'problems |
| 2061 | (let (sort art) |
| 2062 | (while (not (eobp)) |
| 2063 | (setq art (gnus-agent-read-article-number)) |
| 2064 | (cond ((not art) |
| 2065 | ;; Bad art num - delete this line |
| 2066 | (beginning-of-line) |
| 2067 | (delete-region (point) (progn (forward-line 1) (point)))) |
| 2068 | ((< art last) |
| 2069 | ;; Art num out of order - enable sort |
| 2070 | (setq sort t) |
| 2071 | (forward-line 1)) |
| 2072 | ((= art last) |
| 2073 | ;; Bad repeat of art number - delete this line |
| 2074 | (beginning-of-line) |
| 2075 | (delete-region (point) (progn (forward-line 1) (point)))) |
| 2076 | (t |
| 2077 | ;; Good art num |
| 2078 | (setq last art) |
| 2079 | (forward-line 1)))) |
| 2080 | (when sort |
| 2081 | ;; something is seriously wrong as we simply shouldn't see out-of-order data. |
| 2082 | ;; First, we'll fix the sort. |
| 2083 | (sort-numeric-fields 1 (point-min) (point-max)) |
| 2084 | |
| 2085 | ;; but now we have to consider that we may have duplicate rows... |
| 2086 | ;; so reset to beginning of file |
| 2087 | (goto-char (point-min)) |
| 2088 | (setq last -134217728) |
| 2089 | |
| 2090 | ;; and throw a code that restarts this scan |
| 2091 | (throw 'problems t)) |
| 2092 | nil)))))) |
| 2093 | |
| 2094 | ;; Keeps the compiler from warning about the free variable in |
| 2095 | ;; gnus-agent-read-agentview. |
| 2096 | (defvar gnus-agent-read-agentview) |
| 2097 | |
| 2098 | (defun gnus-agent-load-alist (group) |
| 2099 | "Load the article-state alist for GROUP." |
| 2100 | ;; Bind free variable that's used in `gnus-agent-read-agentview'. |
| 2101 | (let* ((gnus-agent-read-agentview group) |
| 2102 | (file-name-coding-system nnmail-pathname-coding-system) |
| 2103 | (agentview (gnus-agent-article-name ".agentview" group))) |
| 2104 | (setq gnus-agent-article-alist |
| 2105 | (and (file-exists-p agentview) |
| 2106 | (gnus-cache-file-contents |
| 2107 | agentview |
| 2108 | 'gnus-agent-file-loading-cache |
| 2109 | 'gnus-agent-read-agentview))))) |
| 2110 | |
| 2111 | (defun gnus-agent-read-agentview (file) |
| 2112 | "Load FILE and do a `read' there." |
| 2113 | (with-temp-buffer |
| 2114 | (condition-case nil |
| 2115 | (progn |
| 2116 | (nnheader-insert-file-contents file) |
| 2117 | (goto-char (point-min)) |
| 2118 | (let ((alist (read (current-buffer))) |
| 2119 | (version (condition-case nil (read (current-buffer)) |
| 2120 | (end-of-file 0))) |
| 2121 | changed-version) |
| 2122 | |
| 2123 | (cond |
| 2124 | ((= version 0) |
| 2125 | (let ((inhibit-quit t) |
| 2126 | entry) |
| 2127 | (gnus-agent-open-history) |
| 2128 | (set-buffer (gnus-agent-history-buffer)) |
| 2129 | (goto-char (point-min)) |
| 2130 | (while (not (eobp)) |
| 2131 | (if (and (looking-at |
| 2132 | "[^\t\n]+\t\\([0-9]+\\)\t\\([^ \n]+\\) \\([0-9]+\\)") |
| 2133 | (string= (match-string 2) |
| 2134 | gnus-agent-read-agentview) |
| 2135 | (setq entry (assoc (string-to-number (match-string 3)) alist))) |
| 2136 | (setcdr entry (string-to-number (match-string 1)))) |
| 2137 | (forward-line 1)) |
| 2138 | (gnus-agent-close-history) |
| 2139 | (setq changed-version t))) |
| 2140 | ((= version 1) |
| 2141 | (setq changed-version (not (= 1 gnus-agent-article-alist-save-format)))) |
| 2142 | ((= version 2) |
| 2143 | (let (state sequence uncomp) |
| 2144 | (while alist |
| 2145 | (setq state (caar alist) |
| 2146 | sequence (inline (gnus-uncompress-range (cdar alist))) |
| 2147 | alist (cdr alist)) |
| 2148 | (while sequence |
| 2149 | (push (cons (pop sequence) state) uncomp))) |
| 2150 | (setq alist (sort uncomp 'car-less-than-car))) |
| 2151 | (setq changed-version (not (= 2 gnus-agent-article-alist-save-format))))) |
| 2152 | (when changed-version |
| 2153 | (let ((gnus-agent-article-alist alist)) |
| 2154 | (gnus-agent-save-alist gnus-agent-read-agentview))) |
| 2155 | alist)) |
| 2156 | ((end-of-file file-error) |
| 2157 | ;; The agentview file is missing. |
| 2158 | (condition-case nil |
| 2159 | ;; If the agent directory exists, attempt to perform a brute-force |
| 2160 | ;; reconstruction of its contents. |
| 2161 | (let* (alist |
| 2162 | (file-name-coding-system nnmail-pathname-coding-system) |
| 2163 | (file-attributes (directory-files-and-attributes |
| 2164 | (gnus-agent-article-name "" |
| 2165 | gnus-agent-read-agentview) nil "^[0-9]+$" t))) |
| 2166 | (while file-attributes |
| 2167 | (let ((fa (pop file-attributes))) |
| 2168 | (unless (nth 1 fa) |
| 2169 | (push (cons (string-to-number (nth 0 fa)) (time-to-days (nth 5 fa))) alist)))) |
| 2170 | alist) |
| 2171 | (file-error nil)))))) |
| 2172 | |
| 2173 | (defun gnus-agent-save-alist (group &optional articles state) |
| 2174 | "Save the article-state alist for GROUP." |
| 2175 | (let* ((file-name-coding-system nnmail-pathname-coding-system) |
| 2176 | (prev (cons nil gnus-agent-article-alist)) |
| 2177 | (all prev) |
| 2178 | print-level print-length item article) |
| 2179 | (while (setq article (pop articles)) |
| 2180 | (while (and (cdr prev) |
| 2181 | (< (caadr prev) article)) |
| 2182 | (setq prev (cdr prev))) |
| 2183 | (cond |
| 2184 | ((not (cdr prev)) |
| 2185 | (setcdr prev (list (cons article state)))) |
| 2186 | ((> (caadr prev) article) |
| 2187 | (setcdr prev (cons (cons article state) (cdr prev)))) |
| 2188 | ((= (caadr prev) article) |
| 2189 | (setcdr (cadr prev) state))) |
| 2190 | (setq prev (cdr prev))) |
| 2191 | (setq gnus-agent-article-alist (cdr all)) |
| 2192 | |
| 2193 | (gnus-agent-set-local group |
| 2194 | (caar gnus-agent-article-alist) |
| 2195 | (caar (last gnus-agent-article-alist))) |
| 2196 | |
| 2197 | (gnus-make-directory (gnus-agent-article-name "" group)) |
| 2198 | (with-temp-file (gnus-agent-article-name ".agentview" group) |
| 2199 | (cond ((eq gnus-agent-article-alist-save-format 1) |
| 2200 | (princ gnus-agent-article-alist (current-buffer))) |
| 2201 | ((eq gnus-agent-article-alist-save-format 2) |
| 2202 | (let ((alist gnus-agent-article-alist) |
| 2203 | article-id day-of-download comp-list compressed) |
| 2204 | (while alist |
| 2205 | (setq article-id (caar alist) |
| 2206 | day-of-download (cdar alist) |
| 2207 | comp-list (assq day-of-download compressed) |
| 2208 | alist (cdr alist)) |
| 2209 | (if comp-list |
| 2210 | (setcdr comp-list (cons article-id (cdr comp-list))) |
| 2211 | (push (list day-of-download article-id) compressed))) |
| 2212 | (setq alist compressed) |
| 2213 | (while alist |
| 2214 | (setq comp-list (pop alist)) |
| 2215 | (setcdr comp-list |
| 2216 | (gnus-compress-sequence (nreverse (cdr comp-list))))) |
| 2217 | (princ compressed (current-buffer))))) |
| 2218 | (insert "\n") |
| 2219 | (princ gnus-agent-article-alist-save-format (current-buffer)) |
| 2220 | (insert "\n")) |
| 2221 | |
| 2222 | (gnus-agent-update-view-total-fetched-for group nil))) |
| 2223 | |
| 2224 | (defvar gnus-agent-article-local nil) |
| 2225 | (defvar gnus-agent-article-local-times nil) |
| 2226 | (defvar gnus-agent-file-loading-local nil) |
| 2227 | |
| 2228 | (defun gnus-agent-load-local (&optional method) |
| 2229 | "Load the METHOD'S local file. The local file contains min/max |
| 2230 | article counts for each of the method's subscribed groups." |
| 2231 | (let ((gnus-command-method (or method gnus-command-method))) |
| 2232 | (when (or (null gnus-agent-article-local-times) |
| 2233 | (zerop gnus-agent-article-local-times)) |
| 2234 | (setq gnus-agent-article-local |
| 2235 | (gnus-cache-file-contents |
| 2236 | (gnus-agent-lib-file "local") |
| 2237 | 'gnus-agent-file-loading-local |
| 2238 | 'gnus-agent-read-and-cache-local)) |
| 2239 | (when gnus-agent-article-local-times |
| 2240 | (incf gnus-agent-article-local-times))) |
| 2241 | gnus-agent-article-local)) |
| 2242 | |
| 2243 | (defun gnus-agent-read-and-cache-local (file) |
| 2244 | "Load and read FILE then bind its contents to |
| 2245 | gnus-agent-article-local. If that variable had `dirty' (also known as |
| 2246 | modified) original contents, they are first saved to their own file." |
| 2247 | (if (and gnus-agent-article-local |
| 2248 | (symbol-value (intern "+dirty" gnus-agent-article-local))) |
| 2249 | (gnus-agent-save-local)) |
| 2250 | (gnus-agent-read-local file)) |
| 2251 | |
| 2252 | (defun gnus-agent-read-local (file) |
| 2253 | "Load FILE and do a `read' there." |
| 2254 | (let ((my-obarray (gnus-make-hashtable (count-lines (point-min) |
| 2255 | (point-max)))) |
| 2256 | (line 1)) |
| 2257 | (with-temp-buffer |
| 2258 | (condition-case nil |
| 2259 | (let ((nnheader-file-coding-system gnus-agent-file-coding-system)) |
| 2260 | (nnheader-insert-file-contents file)) |
| 2261 | (file-error)) |
| 2262 | |
| 2263 | (goto-char (point-min)) |
| 2264 | ;; Skip any comments at the beginning of the file (the only place where they may appear) |
| 2265 | (while (= (following-char) ?\;) |
| 2266 | (forward-line 1) |
| 2267 | (setq line (1+ line))) |
| 2268 | |
| 2269 | (while (not (eobp)) |
| 2270 | (condition-case err |
| 2271 | (let (group |
| 2272 | min |
| 2273 | max |
| 2274 | (cur (current-buffer)) |
| 2275 | (obarray my-obarray)) |
| 2276 | (setq group (read cur) |
| 2277 | min (read cur) |
| 2278 | max (read cur)) |
| 2279 | |
| 2280 | (when (stringp group) |
| 2281 | (setq group (intern group my-obarray))) |
| 2282 | |
| 2283 | ;; NOTE: The '+ 0' ensure that min and max are both numerics. |
| 2284 | (set group (cons (+ 0 min) (+ 0 max)))) |
| 2285 | (error |
| 2286 | (gnus-message 3 "Warning - invalid agent local: %s on line %d: %s" |
| 2287 | file line (error-message-string err)))) |
| 2288 | (forward-line 1) |
| 2289 | (setq line (1+ line)))) |
| 2290 | |
| 2291 | (set (intern "+dirty" my-obarray) nil) |
| 2292 | (set (intern "+method" my-obarray) gnus-command-method) |
| 2293 | my-obarray)) |
| 2294 | |
| 2295 | (defun gnus-agent-save-local (&optional force) |
| 2296 | "Save gnus-agent-article-local under it method's agent.lib directory." |
| 2297 | (let ((my-obarray gnus-agent-article-local)) |
| 2298 | (when (and my-obarray |
| 2299 | (or force (symbol-value (intern "+dirty" my-obarray)))) |
| 2300 | (let* ((gnus-command-method (symbol-value (intern "+method" my-obarray))) |
| 2301 | ;; NOTE: gnus-command-method is used within gnus-agent-lib-file. |
| 2302 | (dest (gnus-agent-lib-file "local"))) |
| 2303 | (gnus-make-directory (gnus-agent-lib-file "")) |
| 2304 | |
| 2305 | (let ((coding-system-for-write gnus-agent-file-coding-system) |
| 2306 | (file-name-coding-system nnmail-pathname-coding-system)) |
| 2307 | (with-temp-file dest |
| 2308 | (let ((gnus-command-method (symbol-value (intern "+method" my-obarray))) |
| 2309 | print-level print-length item article |
| 2310 | (standard-output (current-buffer))) |
| 2311 | (mapatoms (lambda (symbol) |
| 2312 | (cond ((not (boundp symbol)) |
| 2313 | nil) |
| 2314 | ((member (symbol-name symbol) '("+dirty" "+method")) |
| 2315 | nil) |
| 2316 | (t |
| 2317 | (let ((range (symbol-value symbol))) |
| 2318 | (when range |
| 2319 | (prin1 symbol) |
| 2320 | (princ " ") |
| 2321 | (princ (car range)) |
| 2322 | (princ " ") |
| 2323 | (princ (cdr range)) |
| 2324 | (princ "\n")))))) |
| 2325 | my-obarray)))))))) |
| 2326 | |
| 2327 | (defun gnus-agent-get-local (group &optional gmane method) |
| 2328 | (let* ((gmane (or gmane (gnus-group-real-name group))) |
| 2329 | (gnus-command-method (or method (gnus-find-method-for-group group))) |
| 2330 | (local (gnus-agent-load-local)) |
| 2331 | (symb (intern gmane local)) |
| 2332 | (minmax (and (boundp symb) (symbol-value symb)))) |
| 2333 | (unless minmax |
| 2334 | ;; Bind these so that gnus-agent-load-alist doesn't change the |
| 2335 | ;; current alist (i.e. gnus-agent-article-alist) |
| 2336 | (let* ((gnus-agent-article-alist gnus-agent-article-alist) |
| 2337 | (gnus-agent-file-loading-cache gnus-agent-file-loading-cache) |
| 2338 | (alist (gnus-agent-load-alist group))) |
| 2339 | (when alist |
| 2340 | (setq minmax |
| 2341 | (cons (caar alist) |
| 2342 | (caar (last alist)))) |
| 2343 | (gnus-agent-set-local group (car minmax) (cdr minmax) |
| 2344 | gmane gnus-command-method local)))) |
| 2345 | minmax)) |
| 2346 | |
| 2347 | (defun gnus-agent-set-local (group min max &optional gmane method local) |
| 2348 | (let* ((gmane (or gmane (gnus-group-real-name group))) |
| 2349 | (gnus-command-method (or method (gnus-find-method-for-group group))) |
| 2350 | (local (or local (gnus-agent-load-local))) |
| 2351 | (symb (intern gmane local)) |
| 2352 | (minmax (and (boundp symb) (symbol-value symb)))) |
| 2353 | (if (cond ((and minmax |
| 2354 | (or (not (eq min (car minmax))) |
| 2355 | (not (eq max (cdr minmax)))) |
| 2356 | min |
| 2357 | max) |
| 2358 | (setcar minmax min) |
| 2359 | (setcdr minmax max) |
| 2360 | t) |
| 2361 | (minmax |
| 2362 | nil) |
| 2363 | ((and min max) |
| 2364 | (set symb (cons min max)) |
| 2365 | t) |
| 2366 | (t |
| 2367 | (unintern symb local))) |
| 2368 | (set (intern "+dirty" local) t)))) |
| 2369 | |
| 2370 | (defun gnus-agent-article-name (article group) |
| 2371 | (expand-file-name article |
| 2372 | (file-name-as-directory |
| 2373 | (gnus-agent-group-pathname group)))) |
| 2374 | |
| 2375 | (defun gnus-agent-batch-confirmation (msg) |
| 2376 | "Show error message and return t." |
| 2377 | (gnus-message 1 "%s" msg) |
| 2378 | t) |
| 2379 | |
| 2380 | ;;;###autoload |
| 2381 | (defun gnus-agent-batch-fetch () |
| 2382 | "Start Gnus and fetch session." |
| 2383 | (interactive) |
| 2384 | (gnus) |
| 2385 | (let ((gnus-agent-confirmation-function 'gnus-agent-batch-confirmation)) |
| 2386 | (gnus-agent-fetch-session)) |
| 2387 | (gnus-group-exit)) |
| 2388 | |
| 2389 | (defun gnus-agent-fetch-session () |
| 2390 | "Fetch all articles and headers that are eligible for fetching." |
| 2391 | (interactive) |
| 2392 | (unless gnus-agent-covered-methods |
| 2393 | (error "No servers are covered by the Gnus agent")) |
| 2394 | (unless gnus-plugged |
| 2395 | (error "Can't fetch articles while Gnus is unplugged")) |
| 2396 | (let ((methods (gnus-agent-covered-methods)) |
| 2397 | groups group gnus-command-method) |
| 2398 | (save-excursion |
| 2399 | (while methods |
| 2400 | (setq gnus-command-method (car methods)) |
| 2401 | (when (and (or (gnus-server-opened gnus-command-method) |
| 2402 | (gnus-open-server gnus-command-method)) |
| 2403 | (gnus-online gnus-command-method)) |
| 2404 | (setq groups (gnus-groups-from-server (car methods))) |
| 2405 | (gnus-agent-with-fetch |
| 2406 | (while (setq group (pop groups)) |
| 2407 | (when (<= (gnus-group-level group) |
| 2408 | gnus-agent-handle-level) |
| 2409 | (if (or debug-on-error debug-on-quit) |
| 2410 | (gnus-agent-fetch-group-1 |
| 2411 | group gnus-command-method) |
| 2412 | (condition-case err |
| 2413 | (gnus-agent-fetch-group-1 |
| 2414 | group gnus-command-method) |
| 2415 | (error |
| 2416 | (unless (funcall gnus-agent-confirmation-function |
| 2417 | (format "Error %s while fetching session. Should gnus continue? " |
| 2418 | (error-message-string err))) |
| 2419 | (error "Cannot fetch articles into the Gnus agent"))) |
| 2420 | (quit |
| 2421 | (gnus-agent-regenerate-group group) |
| 2422 | (unless (funcall gnus-agent-confirmation-function |
| 2423 | (format |
| 2424 | "%s while fetching session. Should gnus continue? " |
| 2425 | (error-message-string err))) |
| 2426 | (signal 'quit |
| 2427 | "Cannot fetch articles into the Gnus agent"))))))))) |
| 2428 | (setq methods (cdr methods))) |
| 2429 | (gnus-run-hooks 'gnus-agent-fetched-hook) |
| 2430 | (gnus-message 6 "Finished fetching articles into the Gnus agent")))) |
| 2431 | |
| 2432 | (defun gnus-agent-fetch-group-1 (group method) |
| 2433 | "Fetch GROUP." |
| 2434 | (let ((gnus-command-method method) |
| 2435 | (gnus-newsgroup-name group) |
| 2436 | (gnus-newsgroup-dependencies gnus-newsgroup-dependencies) |
| 2437 | (gnus-newsgroup-headers gnus-newsgroup-headers) |
| 2438 | (gnus-newsgroup-scored gnus-newsgroup-scored) |
| 2439 | (gnus-use-cache gnus-use-cache) |
| 2440 | (gnus-summary-expunge-below gnus-summary-expunge-below) |
| 2441 | (gnus-summary-mark-below gnus-summary-mark-below) |
| 2442 | (gnus-orphan-score gnus-orphan-score) |
| 2443 | ;; Maybe some other gnus-summary local variables should also |
| 2444 | ;; be put here. |
| 2445 | |
| 2446 | gnus-headers |
| 2447 | gnus-score |
| 2448 | articles arts |
| 2449 | category predicate info marks score-param |
| 2450 | ) |
| 2451 | (unless (gnus-check-group group) |
| 2452 | (error "Can't open server for %s" group)) |
| 2453 | |
| 2454 | ;; Fetch headers. |
| 2455 | (when (or gnus-newsgroup-active |
| 2456 | (gnus-active group) |
| 2457 | (gnus-activate-group group)) |
| 2458 | (let ((marked-articles gnus-newsgroup-downloadable)) |
| 2459 | ;; Identify the articles marked for download |
| 2460 | (unless gnus-newsgroup-active |
| 2461 | ;; The variable gnus-newsgroup-active was selected as I need |
| 2462 | ;; a gnus-summary local variable that is NOT bound to any |
| 2463 | ;; value (its global value should default to nil). |
| 2464 | (dolist (mark gnus-agent-download-marks) |
| 2465 | (let ((arts (cdr (assq mark (gnus-info-marks |
| 2466 | (setq info (gnus-get-info group))))))) |
| 2467 | (when arts |
| 2468 | (setq marked-articles (nconc (gnus-uncompress-range arts) |
| 2469 | marked-articles)) |
| 2470 | )))) |
| 2471 | (setq marked-articles (sort marked-articles '<)) |
| 2472 | |
| 2473 | ;; Fetch any new articles from the server |
| 2474 | (setq articles (gnus-agent-fetch-headers group)) |
| 2475 | |
| 2476 | ;; Merge new articles with marked |
| 2477 | (setq articles (sort (append marked-articles articles) '<)) |
| 2478 | |
| 2479 | (when articles |
| 2480 | ;; Parse them and see which articles we want to fetch. |
| 2481 | (setq gnus-newsgroup-dependencies |
| 2482 | (or gnus-newsgroup-dependencies |
| 2483 | (make-vector (length articles) 0))) |
| 2484 | (setq gnus-newsgroup-headers |
| 2485 | (or gnus-newsgroup-headers |
| 2486 | (gnus-get-newsgroup-headers-xover articles nil nil |
| 2487 | group))) |
| 2488 | ;; `gnus-agent-overview-buffer' may be killed for |
| 2489 | ;; timeout reason. If so, recreate it. |
| 2490 | (gnus-agent-create-buffer) |
| 2491 | |
| 2492 | ;; Figure out how to select articles in this group |
| 2493 | (setq category (gnus-group-category group)) |
| 2494 | |
| 2495 | (setq predicate |
| 2496 | (gnus-get-predicate |
| 2497 | (gnus-agent-find-parameter group 'agent-predicate))) |
| 2498 | |
| 2499 | ;; If the selection predicate requires scoring, score each header |
| 2500 | (unless (memq predicate '(gnus-agent-true gnus-agent-false)) |
| 2501 | (let ((score-param |
| 2502 | (gnus-agent-find-parameter group 'agent-score-file))) |
| 2503 | ;; Translate score-param into real one |
| 2504 | (cond |
| 2505 | ((not score-param)) |
| 2506 | ((eq score-param 'file) |
| 2507 | (setq score-param (gnus-all-score-files group))) |
| 2508 | ((stringp (car score-param))) |
| 2509 | (t |
| 2510 | (setq score-param (list (list score-param))))) |
| 2511 | (when score-param |
| 2512 | (gnus-score-headers score-param)))) |
| 2513 | |
| 2514 | (unless (and (eq predicate 'gnus-agent-false) |
| 2515 | (not marked-articles)) |
| 2516 | (let ((arts (list nil))) |
| 2517 | (let ((arts-tail arts) |
| 2518 | (alist (gnus-agent-load-alist group)) |
| 2519 | (marked-articles marked-articles) |
| 2520 | (gnus-newsgroup-headers gnus-newsgroup-headers)) |
| 2521 | (while (setq gnus-headers (pop gnus-newsgroup-headers)) |
| 2522 | (let ((num (mail-header-number gnus-headers))) |
| 2523 | ;; Determine if this article is already in the cache |
| 2524 | (while (and alist |
| 2525 | (> num (caar alist))) |
| 2526 | (setq alist (cdr alist))) |
| 2527 | |
| 2528 | (unless (and (eq num (caar alist)) |
| 2529 | (cdar alist)) |
| 2530 | |
| 2531 | ;; Determine if this article was marked for download. |
| 2532 | (while (and marked-articles |
| 2533 | (> num (car marked-articles))) |
| 2534 | (setq marked-articles |
| 2535 | (cdr marked-articles))) |
| 2536 | |
| 2537 | ;; When this article is marked, or selected by the |
| 2538 | ;; predicate, add it to the download list |
| 2539 | (when (or (eq num (car marked-articles)) |
| 2540 | (let ((gnus-score |
| 2541 | (or (cdr |
| 2542 | (assq num gnus-newsgroup-scored)) |
| 2543 | gnus-summary-default-score)) |
| 2544 | (gnus-agent-long-article |
| 2545 | (gnus-agent-find-parameter |
| 2546 | group 'agent-long-article)) |
| 2547 | (gnus-agent-short-article |
| 2548 | (gnus-agent-find-parameter |
| 2549 | group 'agent-short-article)) |
| 2550 | (gnus-agent-low-score |
| 2551 | (gnus-agent-find-parameter |
| 2552 | group 'agent-low-score)) |
| 2553 | (gnus-agent-high-score |
| 2554 | (gnus-agent-find-parameter |
| 2555 | group 'agent-high-score)) |
| 2556 | (gnus-agent-expire-days |
| 2557 | (gnus-agent-find-parameter |
| 2558 | group 'agent-days-until-old))) |
| 2559 | (funcall predicate))) |
| 2560 | (gnus-agent-append-to-list arts-tail num)))))) |
| 2561 | |
| 2562 | (let (fetched-articles) |
| 2563 | ;; Fetch all selected articles |
| 2564 | (setq gnus-newsgroup-undownloaded |
| 2565 | (gnus-sorted-ndifference |
| 2566 | gnus-newsgroup-undownloaded |
| 2567 | (setq fetched-articles |
| 2568 | (if (cdr arts) |
| 2569 | (gnus-agent-fetch-articles group (cdr arts)) |
| 2570 | nil)))) |
| 2571 | |
| 2572 | (let ((unfetched-articles |
| 2573 | (gnus-sorted-ndifference (cdr arts) fetched-articles))) |
| 2574 | (if gnus-newsgroup-active |
| 2575 | ;; Update the summary buffer |
| 2576 | (progn |
| 2577 | (dolist (article marked-articles) |
| 2578 | (gnus-summary-set-agent-mark article t)) |
| 2579 | (dolist (article fetched-articles) |
| 2580 | (when gnus-agent-mark-unread-after-downloaded |
| 2581 | (setq gnus-newsgroup-downloadable |
| 2582 | (delq article gnus-newsgroup-downloadable)) |
| 2583 | (gnus-summary-mark-article |
| 2584 | article gnus-unread-mark)) |
| 2585 | (when (gnus-summary-goto-subject article nil t) |
| 2586 | (gnus-summary-update-download-mark article))) |
| 2587 | (dolist (article unfetched-articles) |
| 2588 | (gnus-summary-mark-article |
| 2589 | article gnus-canceled-mark))) |
| 2590 | |
| 2591 | ;; Update the group buffer. |
| 2592 | |
| 2593 | ;; When some, or all, of the marked articles came |
| 2594 | ;; from the download mark. Remove that mark. I |
| 2595 | ;; didn't do this earlier as I only want to remove |
| 2596 | ;; the marks after the fetch is completed. |
| 2597 | |
| 2598 | (dolist (mark gnus-agent-download-marks) |
| 2599 | (when (eq mark 'download) |
| 2600 | (let ((marked-arts |
| 2601 | (assq mark (gnus-info-marks |
| 2602 | (setq info (gnus-get-info group)))))) |
| 2603 | (when (cdr marked-arts) |
| 2604 | (setq marks |
| 2605 | (delq marked-arts (gnus-info-marks info))) |
| 2606 | (gnus-info-set-marks info marks))))) |
| 2607 | (let ((read (gnus-info-read |
| 2608 | (or info (setq info (gnus-get-info group)))))) |
| 2609 | (gnus-info-set-read |
| 2610 | info (gnus-add-to-range read unfetched-articles))) |
| 2611 | |
| 2612 | (gnus-group-update-group group t) |
| 2613 | (sit-for 0) |
| 2614 | |
| 2615 | (gnus-dribble-enter |
| 2616 | (concat "(gnus-group-set-info '" |
| 2617 | (gnus-prin1-to-string info) |
| 2618 | ")")))))))))))) |
| 2619 | |
| 2620 | ;;; |
| 2621 | ;;; Agent Category Mode |
| 2622 | ;;; |
| 2623 | |
| 2624 | (defvar gnus-category-mode-hook nil |
| 2625 | "Hook run in `gnus-category-mode' buffers.") |
| 2626 | |
| 2627 | (defvar gnus-category-line-format " %(%20c%): %g\n" |
| 2628 | "Format of category lines. |
| 2629 | |
| 2630 | Valid specifiers include: |
| 2631 | %c Topic name (string) |
| 2632 | %g The number of groups in the topic (integer) |
| 2633 | |
| 2634 | General format specifiers can also be used. See Info node |
| 2635 | `(gnus)Formatting Variables'.") |
| 2636 | |
| 2637 | (defvar gnus-category-mode-line-format "Gnus: %%b" |
| 2638 | "The format specification for the category mode line.") |
| 2639 | |
| 2640 | (defvar gnus-agent-predicate 'false |
| 2641 | "The selection predicate used when no other source is available.") |
| 2642 | |
| 2643 | (defvar gnus-agent-short-article 500 |
| 2644 | "Articles that have fewer lines than this are short.") |
| 2645 | |
| 2646 | (defvar gnus-agent-long-article 1000 |
| 2647 | "Articles that have more lines than this are long.") |
| 2648 | |
| 2649 | (defvar gnus-agent-low-score 0 |
| 2650 | "Articles that have a score lower than this have a low score.") |
| 2651 | |
| 2652 | (defvar gnus-agent-high-score 0 |
| 2653 | "Articles that have a score higher than this have a high score.") |
| 2654 | |
| 2655 | |
| 2656 | ;;; Internal variables. |
| 2657 | |
| 2658 | (defvar gnus-category-buffer "*Agent Category*") |
| 2659 | |
| 2660 | (defvar gnus-category-line-format-alist |
| 2661 | `((?c gnus-tmp-name ?s) |
| 2662 | (?g gnus-tmp-groups ?d))) |
| 2663 | |
| 2664 | (defvar gnus-category-mode-line-format-alist |
| 2665 | `((?u user-defined ?s))) |
| 2666 | |
| 2667 | (defvar gnus-category-line-format-spec nil) |
| 2668 | (defvar gnus-category-mode-line-format-spec nil) |
| 2669 | |
| 2670 | (defvar gnus-category-mode-map nil) |
| 2671 | (put 'gnus-category-mode 'mode-class 'special) |
| 2672 | |
| 2673 | (unless gnus-category-mode-map |
| 2674 | (setq gnus-category-mode-map (make-sparse-keymap)) |
| 2675 | (suppress-keymap gnus-category-mode-map) |
| 2676 | |
| 2677 | (gnus-define-keys gnus-category-mode-map |
| 2678 | "q" gnus-category-exit |
| 2679 | "k" gnus-category-kill |
| 2680 | "c" gnus-category-copy |
| 2681 | "a" gnus-category-add |
| 2682 | "e" gnus-agent-customize-category |
| 2683 | "p" gnus-category-edit-predicate |
| 2684 | "g" gnus-category-edit-groups |
| 2685 | "s" gnus-category-edit-score |
| 2686 | "l" gnus-category-list |
| 2687 | |
| 2688 | "\C-c\C-i" gnus-info-find-node |
| 2689 | "\C-c\C-b" gnus-bug)) |
| 2690 | |
| 2691 | (defvar gnus-category-menu-hook nil |
| 2692 | "*Hook run after the creation of the menu.") |
| 2693 | |
| 2694 | (defun gnus-category-make-menu-bar () |
| 2695 | (gnus-turn-off-edit-menu 'category) |
| 2696 | (unless (boundp 'gnus-category-menu) |
| 2697 | (easy-menu-define |
| 2698 | gnus-category-menu gnus-category-mode-map "" |
| 2699 | '("Categories" |
| 2700 | ["Add" gnus-category-add t] |
| 2701 | ["Kill" gnus-category-kill t] |
| 2702 | ["Copy" gnus-category-copy t] |
| 2703 | ["Edit category" gnus-agent-customize-category t] |
| 2704 | ["Edit predicate" gnus-category-edit-predicate t] |
| 2705 | ["Edit score" gnus-category-edit-score t] |
| 2706 | ["Edit groups" gnus-category-edit-groups t] |
| 2707 | ["Exit" gnus-category-exit t])) |
| 2708 | |
| 2709 | (gnus-run-hooks 'gnus-category-menu-hook))) |
| 2710 | |
| 2711 | (defun gnus-category-mode () |
| 2712 | "Major mode for listing and editing agent categories. |
| 2713 | |
| 2714 | All normal editing commands are switched off. |
| 2715 | \\<gnus-category-mode-map> |
| 2716 | For more in-depth information on this mode, read the manual |
| 2717 | \(`\\[gnus-info-find-node]'). |
| 2718 | |
| 2719 | The following commands are available: |
| 2720 | |
| 2721 | \\{gnus-category-mode-map}" |
| 2722 | (interactive) |
| 2723 | (when (gnus-visual-p 'category-menu 'menu) |
| 2724 | (gnus-category-make-menu-bar)) |
| 2725 | (kill-all-local-variables) |
| 2726 | (gnus-simplify-mode-line) |
| 2727 | (setq major-mode 'gnus-category-mode) |
| 2728 | (setq mode-name "Category") |
| 2729 | (gnus-set-default-directory) |
| 2730 | (setq mode-line-process nil) |
| 2731 | (use-local-map gnus-category-mode-map) |
| 2732 | (buffer-disable-undo) |
| 2733 | (setq truncate-lines t) |
| 2734 | (setq buffer-read-only t) |
| 2735 | (gnus-run-mode-hooks 'gnus-category-mode-hook)) |
| 2736 | |
| 2737 | (defalias 'gnus-category-position-point 'gnus-goto-colon) |
| 2738 | |
| 2739 | (defun gnus-category-insert-line (category) |
| 2740 | (let* ((gnus-tmp-name (format "%s" (car category))) |
| 2741 | (gnus-tmp-groups (length (gnus-agent-cat-groups category)))) |
| 2742 | (beginning-of-line) |
| 2743 | (gnus-add-text-properties |
| 2744 | (point) |
| 2745 | (prog1 (1+ (point)) |
| 2746 | ;; Insert the text. |
| 2747 | (eval gnus-category-line-format-spec)) |
| 2748 | (list 'gnus-category gnus-tmp-name)))) |
| 2749 | |
| 2750 | (defun gnus-enter-category-buffer () |
| 2751 | "Go to the Category buffer." |
| 2752 | (interactive) |
| 2753 | (gnus-category-setup-buffer) |
| 2754 | (gnus-configure-windows 'category) |
| 2755 | (gnus-category-prepare)) |
| 2756 | |
| 2757 | (defun gnus-category-setup-buffer () |
| 2758 | (unless (get-buffer gnus-category-buffer) |
| 2759 | (with-current-buffer (gnus-get-buffer-create gnus-category-buffer) |
| 2760 | (gnus-category-mode)))) |
| 2761 | |
| 2762 | (defun gnus-category-prepare () |
| 2763 | (gnus-set-format 'category-mode) |
| 2764 | (gnus-set-format 'category t) |
| 2765 | (let ((alist gnus-category-alist) |
| 2766 | (buffer-read-only nil)) |
| 2767 | (erase-buffer) |
| 2768 | (while alist |
| 2769 | (gnus-category-insert-line (pop alist))) |
| 2770 | (goto-char (point-min)) |
| 2771 | (gnus-category-position-point))) |
| 2772 | |
| 2773 | (defun gnus-category-name () |
| 2774 | (or (intern (get-text-property (point-at-bol) 'gnus-category)) |
| 2775 | (error "No category on the current line"))) |
| 2776 | |
| 2777 | (defun gnus-category-read () |
| 2778 | "Read the category alist." |
| 2779 | (setq gnus-category-alist |
| 2780 | (or |
| 2781 | (with-temp-buffer |
| 2782 | (ignore-errors |
| 2783 | (nnheader-insert-file-contents (nnheader-concat gnus-agent-directory "lib/categories")) |
| 2784 | (goto-char (point-min)) |
| 2785 | ;; This code isn't temp, it will be needed so long as |
| 2786 | ;; anyone may be migrating from an older version. |
| 2787 | |
| 2788 | ;; Once we're certain that people will not revert to an |
| 2789 | ;; earlier version, we can take out the old-list code in |
| 2790 | ;; gnus-category-write. |
| 2791 | (let* ((old-list (read (current-buffer))) |
| 2792 | (new-list (ignore-errors (read (current-buffer))))) |
| 2793 | (if new-list |
| 2794 | new-list |
| 2795 | ;; Convert from a positional list to an alist. |
| 2796 | (mapcar |
| 2797 | (lambda (c) |
| 2798 | (setcdr c |
| 2799 | (delq nil |
| 2800 | (gnus-mapcar |
| 2801 | (lambda (valu symb) |
| 2802 | (if valu |
| 2803 | (cons symb valu))) |
| 2804 | (cdr c) |
| 2805 | '(agent-predicate agent-score-file agent-groups)))) |
| 2806 | c) |
| 2807 | old-list))))) |
| 2808 | (list (gnus-agent-cat-make 'default 'short))))) |
| 2809 | |
| 2810 | (defun gnus-category-write () |
| 2811 | "Write the category alist." |
| 2812 | (setq gnus-category-predicate-cache nil |
| 2813 | gnus-category-group-cache nil) |
| 2814 | (gnus-make-directory (nnheader-concat gnus-agent-directory "lib")) |
| 2815 | (with-temp-file (nnheader-concat gnus-agent-directory "lib/categories") |
| 2816 | ;; This prin1 is temporary. It exists so that people can revert |
| 2817 | ;; to an earlier version of gnus-agent. |
| 2818 | (prin1 (mapcar (lambda (c) |
| 2819 | (list (car c) |
| 2820 | (cdr (assoc 'agent-predicate c)) |
| 2821 | (cdr (assoc 'agent-score-file c)) |
| 2822 | (cdr (assoc 'agent-groups c)))) |
| 2823 | gnus-category-alist) |
| 2824 | (current-buffer)) |
| 2825 | (newline) |
| 2826 | (prin1 gnus-category-alist (current-buffer)))) |
| 2827 | |
| 2828 | (defun gnus-category-edit-predicate (category) |
| 2829 | "Edit the predicate for CATEGORY." |
| 2830 | (interactive (list (gnus-category-name))) |
| 2831 | (let ((info (assq category gnus-category-alist))) |
| 2832 | (gnus-edit-form |
| 2833 | (gnus-agent-cat-predicate info) |
| 2834 | (format "Editing the select predicate for category %s" category) |
| 2835 | `(lambda (predicate) |
| 2836 | ;; Avoid run-time execution of setf form |
| 2837 | ;; (setf (gnus-agent-cat-predicate (assq ',category gnus-category-alist)) |
| 2838 | ;; predicate) |
| 2839 | ;; use its expansion instead: |
| 2840 | (gnus-agent-cat-set-property (assq ',category gnus-category-alist) |
| 2841 | 'agent-predicate predicate) |
| 2842 | |
| 2843 | (gnus-category-write) |
| 2844 | (gnus-category-list))))) |
| 2845 | |
| 2846 | (defun gnus-category-edit-score (category) |
| 2847 | "Edit the score expression for CATEGORY." |
| 2848 | (interactive (list (gnus-category-name))) |
| 2849 | (let ((info (assq category gnus-category-alist))) |
| 2850 | (gnus-edit-form |
| 2851 | (gnus-agent-cat-score-file info) |
| 2852 | (format "Editing the score expression for category %s" category) |
| 2853 | `(lambda (score-file) |
| 2854 | ;; Avoid run-time execution of setf form |
| 2855 | ;; (setf (gnus-agent-cat-score-file (assq ',category gnus-category-alist)) |
| 2856 | ;; score-file) |
| 2857 | ;; use its expansion instead: |
| 2858 | (gnus-agent-cat-set-property (assq ',category gnus-category-alist) |
| 2859 | 'agent-score-file score-file) |
| 2860 | |
| 2861 | (gnus-category-write) |
| 2862 | (gnus-category-list))))) |
| 2863 | |
| 2864 | (defun gnus-category-edit-groups (category) |
| 2865 | "Edit the group list for CATEGORY." |
| 2866 | (interactive (list (gnus-category-name))) |
| 2867 | (let ((info (assq category gnus-category-alist))) |
| 2868 | (gnus-edit-form |
| 2869 | (gnus-agent-cat-groups info) |
| 2870 | (format "Editing the group list for category %s" category) |
| 2871 | `(lambda (groups) |
| 2872 | ;; Avoid run-time execution of setf form |
| 2873 | ;; (setf (gnus-agent-cat-groups (assq ',category gnus-category-alist)) |
| 2874 | ;; groups) |
| 2875 | ;; use its expansion instead: |
| 2876 | (gnus-agent-set-cat-groups (assq ',category gnus-category-alist) |
| 2877 | groups) |
| 2878 | |
| 2879 | (gnus-category-write) |
| 2880 | (gnus-category-list))))) |
| 2881 | |
| 2882 | (defun gnus-category-kill (category) |
| 2883 | "Kill the current category." |
| 2884 | (interactive (list (gnus-category-name))) |
| 2885 | (let ((info (assq category gnus-category-alist)) |
| 2886 | (buffer-read-only nil)) |
| 2887 | (gnus-delete-line) |
| 2888 | (setq gnus-category-alist (delq info gnus-category-alist)) |
| 2889 | (gnus-category-write))) |
| 2890 | |
| 2891 | (defun gnus-category-copy (category to) |
| 2892 | "Copy the current category." |
| 2893 | (interactive (list (gnus-category-name) (intern (read-string "New name: ")))) |
| 2894 | (let ((info (assq category gnus-category-alist))) |
| 2895 | (push (let ((newcat (gnus-copy-sequence info))) |
| 2896 | (setf (gnus-agent-cat-name newcat) to) |
| 2897 | (setf (gnus-agent-cat-groups newcat) nil) |
| 2898 | newcat) |
| 2899 | gnus-category-alist) |
| 2900 | (gnus-category-write) |
| 2901 | (gnus-category-list))) |
| 2902 | |
| 2903 | (defun gnus-category-add (category) |
| 2904 | "Create a new category." |
| 2905 | (interactive "SCategory name: ") |
| 2906 | (when (assq category gnus-category-alist) |
| 2907 | (error "Category %s already exists" category)) |
| 2908 | (push (gnus-agent-cat-make category) |
| 2909 | gnus-category-alist) |
| 2910 | (gnus-category-write) |
| 2911 | (gnus-category-list)) |
| 2912 | |
| 2913 | (defun gnus-category-list () |
| 2914 | "List all categories." |
| 2915 | (interactive) |
| 2916 | (gnus-category-prepare)) |
| 2917 | |
| 2918 | (defun gnus-category-exit () |
| 2919 | "Return to the group buffer." |
| 2920 | (interactive) |
| 2921 | (kill-buffer (current-buffer)) |
| 2922 | (gnus-configure-windows 'group t)) |
| 2923 | |
| 2924 | ;; To avoid having 8-bit characters in the source file. |
| 2925 | (defvar gnus-category-not (list '! 'not (intern (format "%c" 172)))) |
| 2926 | |
| 2927 | (defvar gnus-category-predicate-alist |
| 2928 | '((spam . gnus-agent-spam-p) |
| 2929 | (short . gnus-agent-short-p) |
| 2930 | (long . gnus-agent-long-p) |
| 2931 | (low . gnus-agent-low-scored-p) |
| 2932 | (high . gnus-agent-high-scored-p) |
| 2933 | (read . gnus-agent-read-p) |
| 2934 | (true . gnus-agent-true) |
| 2935 | (false . gnus-agent-false)) |
| 2936 | "Mapping from short score predicate symbols to predicate functions.") |
| 2937 | |
| 2938 | (defun gnus-agent-spam-p () |
| 2939 | "Say whether an article is spam or not." |
| 2940 | (unless gnus-agent-spam-hashtb |
| 2941 | (setq gnus-agent-spam-hashtb (gnus-make-hashtable 1000))) |
| 2942 | (if (not (equal (mail-header-references gnus-headers) "")) |
| 2943 | nil |
| 2944 | (let ((string (gnus-simplify-subject (mail-header-subject gnus-headers)))) |
| 2945 | (prog1 |
| 2946 | (gnus-gethash string gnus-agent-spam-hashtb) |
| 2947 | (gnus-sethash string t gnus-agent-spam-hashtb))))) |
| 2948 | |
| 2949 | (defun gnus-agent-short-p () |
| 2950 | "Say whether an article is short or not." |
| 2951 | (< (mail-header-lines gnus-headers) gnus-agent-short-article)) |
| 2952 | |
| 2953 | (defun gnus-agent-long-p () |
| 2954 | "Say whether an article is long or not." |
| 2955 | (> (mail-header-lines gnus-headers) gnus-agent-long-article)) |
| 2956 | |
| 2957 | (defun gnus-agent-low-scored-p () |
| 2958 | "Say whether an article has a low score or not." |
| 2959 | (< gnus-score gnus-agent-low-score)) |
| 2960 | |
| 2961 | (defun gnus-agent-high-scored-p () |
| 2962 | "Say whether an article has a high score or not." |
| 2963 | (> gnus-score gnus-agent-high-score)) |
| 2964 | |
| 2965 | (defun gnus-agent-read-p () |
| 2966 | "Say whether an article is read or not." |
| 2967 | (gnus-member-of-range (mail-header-number gnus-headers) |
| 2968 | (gnus-info-read (gnus-get-info gnus-newsgroup-name)))) |
| 2969 | |
| 2970 | (defun gnus-category-make-function (predicate) |
| 2971 | "Make a function from PREDICATE." |
| 2972 | (let ((func (gnus-category-make-function-1 predicate))) |
| 2973 | (if (and (= (length func) 1) |
| 2974 | (symbolp (car func))) |
| 2975 | (car func) |
| 2976 | (gnus-byte-compile `(lambda () ,func))))) |
| 2977 | |
| 2978 | (defun gnus-agent-true () |
| 2979 | "Return t." |
| 2980 | t) |
| 2981 | |
| 2982 | (defun gnus-agent-false () |
| 2983 | "Return nil." |
| 2984 | nil) |
| 2985 | |
| 2986 | (defun gnus-category-make-function-1 (predicate) |
| 2987 | "Make a function from PREDICATE." |
| 2988 | (cond |
| 2989 | ;; Functions are just returned as is. |
| 2990 | ((or (symbolp predicate) |
| 2991 | (functionp predicate)) |
| 2992 | `(,(or (cdr (assq predicate gnus-category-predicate-alist)) |
| 2993 | predicate))) |
| 2994 | ;; More complex predicate. |
| 2995 | ((consp predicate) |
| 2996 | `(,(cond |
| 2997 | ((memq (car predicate) '(& and)) |
| 2998 | 'and) |
| 2999 | ((memq (car predicate) '(| or)) |
| 3000 | 'or) |
| 3001 | ((memq (car predicate) gnus-category-not) |
| 3002 | 'not)) |
| 3003 | ,@(mapcar 'gnus-category-make-function-1 (cdr predicate)))) |
| 3004 | (t |
| 3005 | (error "Unknown predicate type: %s" predicate)))) |
| 3006 | |
| 3007 | (defun gnus-get-predicate (predicate) |
| 3008 | "Return the function implementing PREDICATE." |
| 3009 | (or (cdr (assoc predicate gnus-category-predicate-cache)) |
| 3010 | (let ((func (gnus-category-make-function predicate))) |
| 3011 | (setq gnus-category-predicate-cache |
| 3012 | (nconc gnus-category-predicate-cache |
| 3013 | (list (cons predicate func)))) |
| 3014 | func))) |
| 3015 | |
| 3016 | (defun gnus-predicate-implies-unread (predicate) |
| 3017 | "Say whether PREDICATE implies unread articles only. |
| 3018 | It is okay to miss some cases, but there must be no false positives. |
| 3019 | That is, if this predicate returns true, then indeed the predicate must |
| 3020 | return only unread articles." |
| 3021 | (eq t (gnus-function-implies-unread-1 |
| 3022 | (gnus-category-make-function-1 predicate)))) |
| 3023 | |
| 3024 | (defun gnus-function-implies-unread-1 (function) |
| 3025 | "Recursively evaluate a predicate function to determine whether it can select |
| 3026 | any read articles. Returns t if the function is known to never |
| 3027 | return read articles, nil when it is known to always return read |
| 3028 | articles, and t_nil when the function may return both read and unread |
| 3029 | articles." |
| 3030 | (let ((func (car function)) |
| 3031 | (args (mapcar 'gnus-function-implies-unread-1 (cdr function)))) |
| 3032 | (cond ((eq func 'and) |
| 3033 | (cond ((memq t args) ; if any argument returns only unread articles |
| 3034 | ;; then that argument constrains the result to only unread articles. |
| 3035 | t) |
| 3036 | ((memq 't_nil args) ; if any argument is indeterminate |
| 3037 | ;; then the result is indeterminate |
| 3038 | 't_nil))) |
| 3039 | ((eq func 'or) |
| 3040 | (cond ((memq nil args) ; if any argument returns read articles |
| 3041 | ;; then that argument ensures that the results includes read articles. |
| 3042 | nil) |
| 3043 | ((memq 't_nil args) ; if any argument is indeterminate |
| 3044 | ;; then that argument ensures that the results are indeterminate |
| 3045 | 't_nil) |
| 3046 | (t ; if all arguments return only unread articles |
| 3047 | ;; then the result returns only unread articles |
| 3048 | t))) |
| 3049 | ((eq func 'not) |
| 3050 | (cond ((eq (car args) 't_nil) ; if the argument is indeterminate |
| 3051 | ; then the result is indeterminate |
| 3052 | (car args)) |
| 3053 | (t ; otherwise |
| 3054 | ; toggle the result to be the opposite of the argument |
| 3055 | (not (car args))))) |
| 3056 | ((eq func 'gnus-agent-read-p) |
| 3057 | nil) ; The read predicate NEVER returns unread articles |
| 3058 | ((eq func 'gnus-agent-false) |
| 3059 | t) ; The false predicate returns t as the empty set excludes all read articles |
| 3060 | ((eq func 'gnus-agent-true) |
| 3061 | nil) ; The true predicate ALWAYS returns read articles |
| 3062 | ((catch 'found-match |
| 3063 | (let ((alist gnus-category-predicate-alist)) |
| 3064 | (while alist |
| 3065 | (if (eq func (cdar alist)) |
| 3066 | (throw 'found-match t) |
| 3067 | (setq alist (cdr alist)))))) |
| 3068 | 't_nil) ; All other predicates return read and unread articles |
| 3069 | (t |
| 3070 | (error "Unknown predicate function: %s" function))))) |
| 3071 | |
| 3072 | (defun gnus-group-category (group) |
| 3073 | "Return the category GROUP belongs to." |
| 3074 | (unless gnus-category-group-cache |
| 3075 | (setq gnus-category-group-cache (gnus-make-hashtable 1000)) |
| 3076 | (let ((cs gnus-category-alist) |
| 3077 | groups cat) |
| 3078 | (while (setq cat (pop cs)) |
| 3079 | (setq groups (gnus-agent-cat-groups cat)) |
| 3080 | (while groups |
| 3081 | (gnus-sethash (pop groups) cat gnus-category-group-cache))))) |
| 3082 | (or (gnus-gethash group gnus-category-group-cache) |
| 3083 | (assq 'default gnus-category-alist))) |
| 3084 | |
| 3085 | (defun gnus-agent-expire-group (group &optional articles force) |
| 3086 | "Expire all old articles in GROUP. |
| 3087 | If you want to force expiring of certain articles, this function can |
| 3088 | take ARTICLES, and FORCE parameters as well. |
| 3089 | |
| 3090 | The articles on which the expiration process runs are selected as follows: |
| 3091 | if ARTICLES is null, all read and unmarked articles. |
| 3092 | if ARTICLES is t, all articles. |
| 3093 | if ARTICLES is a list, just those articles. |
| 3094 | FORCE is equivalent to setting the expiration predicates to true." |
| 3095 | (interactive (list (gnus-agent-read-group))) |
| 3096 | |
| 3097 | (if (not group) |
| 3098 | (gnus-agent-expire articles group force) |
| 3099 | (let ( ;; Bind gnus-agent-expire-stats to enable tracking of |
| 3100 | ;; expiration statistics of this single group |
| 3101 | (gnus-agent-expire-stats (list 0 0 0.0))) |
| 3102 | (if (or (not (eq articles t)) |
| 3103 | (yes-or-no-p |
| 3104 | (concat "Are you sure that you want to " |
| 3105 | "expire all articles in " group "? "))) |
| 3106 | (let ((gnus-command-method (gnus-find-method-for-group group)) |
| 3107 | (overview (gnus-get-buffer-create " *expire overview*")) |
| 3108 | orig) |
| 3109 | (unwind-protect |
| 3110 | (let ((active-file (gnus-agent-lib-file "active"))) |
| 3111 | (when (file-exists-p active-file) |
| 3112 | (with-temp-buffer |
| 3113 | (nnheader-insert-file-contents active-file) |
| 3114 | (gnus-active-to-gnus-format |
| 3115 | gnus-command-method |
| 3116 | (setq orig (gnus-make-hashtable |
| 3117 | (count-lines (point-min) (point-max)))))) |
| 3118 | (save-excursion |
| 3119 | (gnus-agent-expire-group-1 |
| 3120 | group overview (gnus-gethash-safe group orig) |
| 3121 | articles force)))) |
| 3122 | (kill-buffer overview)))) |
| 3123 | (gnus-message 4 "%s" (gnus-agent-expire-done-message))))) |
| 3124 | |
| 3125 | (defun gnus-agent-expire-group-1 (group overview active articles force) |
| 3126 | ;; Internal function - requires caller to have set |
| 3127 | ;; gnus-command-method, initialized overview buffer, and to have |
| 3128 | ;; provided a non-nil active |
| 3129 | |
| 3130 | (let ((dir (gnus-agent-group-pathname group)) |
| 3131 | (file-name-coding-system nnmail-pathname-coding-system) |
| 3132 | (decoded (gnus-agent-decoded-group-name group))) |
| 3133 | (gnus-agent-with-refreshed-group |
| 3134 | group |
| 3135 | (when (boundp 'gnus-agent-expire-current-dirs) |
| 3136 | (set 'gnus-agent-expire-current-dirs |
| 3137 | (cons dir |
| 3138 | (symbol-value 'gnus-agent-expire-current-dirs)))) |
| 3139 | |
| 3140 | (if (and (not force) |
| 3141 | (eq 'DISABLE (gnus-agent-find-parameter group |
| 3142 | 'agent-enable-expiration))) |
| 3143 | (gnus-message 5 "Expiry skipping over %s" decoded) |
| 3144 | (gnus-message 5 "Expiring articles in %s" decoded) |
| 3145 | (gnus-agent-load-alist group) |
| 3146 | (let* ((bytes-freed 0) |
| 3147 | (size-files-deleted 0.0) |
| 3148 | (files-deleted 0) |
| 3149 | (nov-entries-deleted 0) |
| 3150 | (info (gnus-get-info group)) |
| 3151 | (alist gnus-agent-article-alist) |
| 3152 | (day (- (time-to-days (current-time)) |
| 3153 | (gnus-agent-find-parameter group 'agent-days-until-old))) |
| 3154 | (specials (if (and alist |
| 3155 | (not force)) |
| 3156 | ;; This could be a bit of a problem. I need to |
| 3157 | ;; keep the last article to avoid refetching |
| 3158 | ;; headers when using nntp in the backend. At |
| 3159 | ;; the same time, if someone uses a backend |
| 3160 | ;; that supports article moving then I may have |
| 3161 | ;; to remove the last article to complete the |
| 3162 | ;; move. Right now, I'm going to assume that |
| 3163 | ;; FORCE overrides specials. |
| 3164 | (list (caar (last alist))))) |
| 3165 | (unreads ;; Articles that are excluded from the |
| 3166 | ;; expiration process |
| 3167 | (cond (gnus-agent-expire-all |
| 3168 | ;; All articles are marked read by global decree |
| 3169 | nil) |
| 3170 | ((eq articles t) |
| 3171 | ;; All articles are marked read by function |
| 3172 | ;; parameter |
| 3173 | nil) |
| 3174 | ((not articles) |
| 3175 | ;; Unread articles are marked protected from |
| 3176 | ;; expiration Don't call |
| 3177 | ;; gnus-list-of-unread-articles as it returns |
| 3178 | ;; articles that have not been fetched into the |
| 3179 | ;; agent. |
| 3180 | (ignore-errors |
| 3181 | (gnus-agent-unread-articles group))) |
| 3182 | (t |
| 3183 | ;; All articles EXCEPT those named by the caller |
| 3184 | ;; are protected from expiration |
| 3185 | (gnus-sorted-difference |
| 3186 | (gnus-uncompress-range |
| 3187 | (cons (caar alist) |
| 3188 | (caar (last alist)))) |
| 3189 | (sort articles '<))))) |
| 3190 | (marked ;; More articles that are excluded from the |
| 3191 | ;; expiration process |
| 3192 | (cond (gnus-agent-expire-all |
| 3193 | ;; All articles are unmarked by global decree |
| 3194 | nil) |
| 3195 | ((eq articles t) |
| 3196 | ;; All articles are unmarked by function |
| 3197 | ;; parameter |
| 3198 | nil) |
| 3199 | (articles |
| 3200 | ;; All articles may as well be unmarked as the |
| 3201 | ;; unreads list already names the articles we are |
| 3202 | ;; going to keep |
| 3203 | nil) |
| 3204 | (t |
| 3205 | ;; Ticked and/or dormant articles are excluded |
| 3206 | ;; from expiration |
| 3207 | (nconc |
| 3208 | (gnus-uncompress-range |
| 3209 | (cdr (assq 'tick (gnus-info-marks info)))) |
| 3210 | (gnus-uncompress-range |
| 3211 | (cdr (assq 'dormant |
| 3212 | (gnus-info-marks info)))))))) |
| 3213 | (nov-file (concat dir ".overview")) |
| 3214 | (cnt 0) |
| 3215 | (completed -1) |
| 3216 | dlist |
| 3217 | type) |
| 3218 | |
| 3219 | ;; The normal article alist contains elements that look like |
| 3220 | ;; (article# . fetch_date) I need to combine other |
| 3221 | ;; information with this list. For example, a flag indicating |
| 3222 | ;; that a particular article MUST BE KEPT. To do this, I'm |
| 3223 | ;; going to transform the elements to look like (article# |
| 3224 | ;; fetch_date keep_flag NOV_entry_position) Later, I'll reverse |
| 3225 | ;; the process to generate the expired article alist. |
| 3226 | |
| 3227 | ;; Convert the alist elements to (article# fetch_date nil |
| 3228 | ;; nil). |
| 3229 | (setq dlist (mapcar (lambda (e) |
| 3230 | (list (car e) (cdr e) nil nil)) alist)) |
| 3231 | |
| 3232 | ;; Convert the keep lists to elements that look like (article# |
| 3233 | ;; nil keep_flag nil) then append it to the expanded dlist |
| 3234 | ;; These statements are sorted by ascending precidence of the |
| 3235 | ;; keep_flag. |
| 3236 | (setq dlist (nconc dlist |
| 3237 | (mapcar (lambda (e) |
| 3238 | (list e nil 'unread nil)) |
| 3239 | unreads))) |
| 3240 | (setq dlist (nconc dlist |
| 3241 | (mapcar (lambda (e) |
| 3242 | (list e nil 'marked nil)) |
| 3243 | marked))) |
| 3244 | (setq dlist (nconc dlist |
| 3245 | (mapcar (lambda (e) |
| 3246 | (list e nil 'special nil)) |
| 3247 | specials))) |
| 3248 | |
| 3249 | (set-buffer overview) |
| 3250 | (erase-buffer) |
| 3251 | (buffer-disable-undo) |
| 3252 | (when (file-exists-p nov-file) |
| 3253 | (gnus-message 7 "gnus-agent-expire: Loading overview...") |
| 3254 | (nnheader-insert-file-contents nov-file) |
| 3255 | (goto-char (point-min)) |
| 3256 | |
| 3257 | (let (p) |
| 3258 | (while (< (setq p (point)) (point-max)) |
| 3259 | (condition-case nil |
| 3260 | ;; If I successfully read an integer (the plus zero |
| 3261 | ;; ensures a numeric type), append the position |
| 3262 | ;; to the list |
| 3263 | (push (list (+ 0 (read (current-buffer))) nil nil |
| 3264 | p) |
| 3265 | dlist) |
| 3266 | (error |
| 3267 | (gnus-message 1 "gnus-agent-expire: read error \ |
| 3268 | occurred when reading expression at %s in %s. Skipping to next \ |
| 3269 | line." (point) nov-file))) |
| 3270 | ;; Whether I succeeded, or failed, it doesn't matter. |
| 3271 | ;; Move to the next line then try again. |
| 3272 | (forward-line 1))) |
| 3273 | |
| 3274 | (gnus-message |
| 3275 | 7 "gnus-agent-expire: Loading overview... Done")) |
| 3276 | (set-buffer-modified-p nil) |
| 3277 | |
| 3278 | ;; At this point, all of the information is in dlist. The |
| 3279 | ;; only problem is that much of it is spread across multiple |
| 3280 | ;; entries. Sort then MERGE!! |
| 3281 | (gnus-message 7 "gnus-agent-expire: Sorting entries... ") |
| 3282 | ;; If two entries have the same article-number then sort by |
| 3283 | ;; ascending keep_flag. |
| 3284 | (let ((special 0) |
| 3285 | (marked 1) |
| 3286 | (unread 2)) |
| 3287 | (setq dlist |
| 3288 | (sort dlist |
| 3289 | (lambda (a b) |
| 3290 | (cond ((< (nth 0 a) (nth 0 b)) |
| 3291 | t) |
| 3292 | ((> (nth 0 a) (nth 0 b)) |
| 3293 | nil) |
| 3294 | (t |
| 3295 | (let ((a (or (symbol-value (nth 2 a)) |
| 3296 | 3)) |
| 3297 | (b (or (symbol-value (nth 2 b)) |
| 3298 | 3))) |
| 3299 | (<= a b)))))))) |
| 3300 | (gnus-message 7 "gnus-agent-expire: Sorting entries... Done") |
| 3301 | (gnus-message 7 "gnus-agent-expire: Merging entries... ") |
| 3302 | (let ((dlist dlist)) |
| 3303 | (while (cdr dlist) ; I'm not at the end-of-list |
| 3304 | (if (eq (caar dlist) (caadr dlist)) |
| 3305 | (let ((first (cdr (car dlist))) |
| 3306 | (secnd (cdr (cadr dlist)))) |
| 3307 | (setcar first (or (car first) |
| 3308 | (car secnd))) ; fetch_date |
| 3309 | (setq first (cdr first) |
| 3310 | secnd (cdr secnd)) |
| 3311 | (setcar first (or (car first) |
| 3312 | (car secnd))) ; Keep_flag |
| 3313 | (setq first (cdr first) |
| 3314 | secnd (cdr secnd)) |
| 3315 | (setcar first (or (car first) |
| 3316 | (car secnd))) ; NOV_entry_position |
| 3317 | |
| 3318 | (setcdr dlist (cddr dlist))) |
| 3319 | (setq dlist (cdr dlist))))) |
| 3320 | |
| 3321 | ;; Check the order of the entry positions. They should be in |
| 3322 | ;; ascending order. If they aren't, the positions must be |
| 3323 | ;; converted to markers. |
| 3324 | (when (catch 'sort-results |
| 3325 | (let ((dlist dlist) |
| 3326 | (prev-pos -1) |
| 3327 | pos) |
| 3328 | (while dlist |
| 3329 | (if (setq pos (nth 3 (pop dlist))) |
| 3330 | (if (< pos prev-pos) |
| 3331 | (throw 'sort-results 'unsorted) |
| 3332 | (setq prev-pos pos)))))) |
| 3333 | (gnus-message 7 "gnus-agent-expire: Unsorted overview; inserting markers to compensate.") |
| 3334 | (mapc (lambda (entry) |
| 3335 | (let ((pos (nth 3 entry))) |
| 3336 | (if pos |
| 3337 | (setf (nth 3 entry) |
| 3338 | (set-marker (make-marker) |
| 3339 | pos))))) |
| 3340 | dlist)) |
| 3341 | |
| 3342 | (gnus-message 7 "gnus-agent-expire: Merging entries... Done") |
| 3343 | |
| 3344 | (let* ((len (float (length dlist))) |
| 3345 | (alist (list nil)) |
| 3346 | (tail-alist alist) |
| 3347 | (position-offset 0) |
| 3348 | ) |
| 3349 | |
| 3350 | (while dlist |
| 3351 | (let ((new-completed (truncate (* 100.0 |
| 3352 | (/ (setq cnt (1+ cnt)) |
| 3353 | len)))) |
| 3354 | message-log-max) |
| 3355 | (when (> new-completed completed) |
| 3356 | (setq completed new-completed) |
| 3357 | (gnus-message 7 "%3d%% completed..." completed))) |
| 3358 | (let* ((entry (car dlist)) |
| 3359 | (article-number (nth 0 entry)) |
| 3360 | (fetch-date (nth 1 entry)) |
| 3361 | (keep (nth 2 entry)) |
| 3362 | (marker (nth 3 entry))) |
| 3363 | |
| 3364 | (cond |
| 3365 | ;; Kept articles are unread, marked, or special. |
| 3366 | (keep |
| 3367 | (gnus-agent-message 10 |
| 3368 | "gnus-agent-expire: %s:%d: Kept %s article%s." |
| 3369 | decoded article-number keep (if fetch-date " and file" "")) |
| 3370 | (when fetch-date |
| 3371 | (unless (file-exists-p |
| 3372 | (concat dir (number-to-string |
| 3373 | article-number))) |
| 3374 | (setf (nth 1 entry) nil) |
| 3375 | (gnus-agent-message 3 "gnus-agent-expire cleared \ |
| 3376 | download flag on %s:%d as the cached article file is missing." |
| 3377 | decoded (caar dlist))) |
| 3378 | (unless marker |
| 3379 | (gnus-message 1 "gnus-agent-expire detected a \ |
| 3380 | missing NOV entry. Run gnus-agent-regenerate-group to restore it."))) |
| 3381 | (gnus-agent-append-to-list |
| 3382 | tail-alist |
| 3383 | (cons article-number fetch-date))) |
| 3384 | |
| 3385 | ;; The following articles are READ, UNMARKED, and |
| 3386 | ;; ORDINARY. See if they can be EXPIRED!!! |
| 3387 | ((setq type |
| 3388 | (cond |
| 3389 | ((not (integerp fetch-date)) |
| 3390 | 'read) ;; never fetched article (may expire |
| 3391 | ;; right now) |
| 3392 | ((not (file-exists-p |
| 3393 | (concat dir (number-to-string |
| 3394 | article-number)))) |
| 3395 | (setf (nth 1 entry) nil) |
| 3396 | 'externally-expired) ;; Can't find the cached |
| 3397 | ;; article. Handle case |
| 3398 | ;; as though this article |
| 3399 | ;; was never fetched. |
| 3400 | |
| 3401 | ;; We now have the arrival day, so we see |
| 3402 | ;; whether it's old enough to be expired. |
| 3403 | ((< fetch-date day) |
| 3404 | 'expired) |
| 3405 | (force |
| 3406 | 'forced))) |
| 3407 | |
| 3408 | ;; I found some reason to expire this entry. |
| 3409 | |
| 3410 | (let ((actions nil)) |
| 3411 | (when (memq type '(forced expired)) |
| 3412 | (ignore-errors ; Just being paranoid. |
| 3413 | (let* ((file-name (nnheader-concat dir (number-to-string |
| 3414 | article-number))) |
| 3415 | (size (float (nth 7 (file-attributes file-name))))) |
| 3416 | (incf bytes-freed size) |
| 3417 | (incf size-files-deleted size) |
| 3418 | (incf files-deleted) |
| 3419 | (delete-file file-name)) |
| 3420 | (push "expired cached article" actions)) |
| 3421 | (setf (nth 1 entry) nil) |
| 3422 | ) |
| 3423 | |
| 3424 | (when marker |
| 3425 | (push "NOV entry removed" actions) |
| 3426 | |
| 3427 | (goto-char (if (markerp marker) |
| 3428 | marker |
| 3429 | (- marker position-offset))) |
| 3430 | |
| 3431 | (incf nov-entries-deleted) |
| 3432 | |
| 3433 | (let* ((from (point-at-bol)) |
| 3434 | (to (progn (forward-line 1) (point))) |
| 3435 | (freed (- to from))) |
| 3436 | (incf bytes-freed freed) |
| 3437 | (incf position-offset freed) |
| 3438 | (delete-region from to))) |
| 3439 | |
| 3440 | ;; If considering all articles is set, I can only |
| 3441 | ;; expire article IDs that are no longer in the |
| 3442 | ;; active range (That is, articles that preceed the |
| 3443 | ;; first article in the new alist). |
| 3444 | (if (and gnus-agent-consider-all-articles |
| 3445 | (>= article-number (car active))) |
| 3446 | ;; I have to keep this ID in the alist |
| 3447 | (gnus-agent-append-to-list |
| 3448 | tail-alist (cons article-number fetch-date)) |
| 3449 | (push (format "Removed %s article number from \ |
| 3450 | article alist" type) actions)) |
| 3451 | |
| 3452 | (when actions |
| 3453 | (gnus-agent-message 8 "gnus-agent-expire: %s:%d: %s" |
| 3454 | decoded article-number |
| 3455 | (mapconcat 'identity actions ", "))))) |
| 3456 | (t |
| 3457 | (gnus-agent-message |
| 3458 | 10 "gnus-agent-expire: %s:%d: Article kept as \ |
| 3459 | expiration tests failed." decoded article-number) |
| 3460 | (gnus-agent-append-to-list |
| 3461 | tail-alist (cons article-number fetch-date))) |
| 3462 | ) |
| 3463 | |
| 3464 | ;; Remove markers as I intend to reuse this buffer again. |
| 3465 | (when (and marker |
| 3466 | (markerp marker)) |
| 3467 | (set-marker marker nil)) |
| 3468 | |
| 3469 | (setq dlist (cdr dlist)))) |
| 3470 | |
| 3471 | (setq alist (cdr alist)) |
| 3472 | |
| 3473 | (let ((inhibit-quit t)) |
| 3474 | (unless (equal alist gnus-agent-article-alist) |
| 3475 | (setq gnus-agent-article-alist alist) |
| 3476 | (gnus-agent-save-alist group)) |
| 3477 | |
| 3478 | (when (buffer-modified-p) |
| 3479 | (let ((coding-system-for-write |
| 3480 | gnus-agent-file-coding-system)) |
| 3481 | (gnus-make-directory dir) |
| 3482 | (write-region (point-min) (point-max) nov-file nil |
| 3483 | 'silent) |
| 3484 | ;; clear the modified flag as that I'm not confused by |
| 3485 | ;; its status on the next pass through this routine. |
| 3486 | (set-buffer-modified-p nil) |
| 3487 | (gnus-agent-update-view-total-fetched-for group t))) |
| 3488 | |
| 3489 | (when (eq articles t) |
| 3490 | (gnus-summary-update-info)))) |
| 3491 | |
| 3492 | (when (boundp 'gnus-agent-expire-stats) |
| 3493 | (let ((stats (symbol-value 'gnus-agent-expire-stats))) |
| 3494 | (incf (nth 2 stats) bytes-freed) |
| 3495 | (incf (nth 1 stats) files-deleted) |
| 3496 | (incf (nth 0 stats) nov-entries-deleted))) |
| 3497 | |
| 3498 | (gnus-agent-update-files-total-fetched-for group (- size-files-deleted))))))) |
| 3499 | |
| 3500 | (defun gnus-agent-expire (&optional articles group force) |
| 3501 | "Expire all old articles. |
| 3502 | If you want to force expiring of certain articles, this function can |
| 3503 | take ARTICLES, GROUP and FORCE parameters as well. |
| 3504 | |
| 3505 | The articles on which the expiration process runs are selected as follows: |
| 3506 | if ARTICLES is null, all read and unmarked articles. |
| 3507 | if ARTICLES is t, all articles. |
| 3508 | if ARTICLES is a list, just those articles. |
| 3509 | Setting GROUP will limit expiration to that group. |
| 3510 | FORCE is equivalent to setting the expiration predicates to true." |
| 3511 | (interactive) |
| 3512 | |
| 3513 | (if group |
| 3514 | (gnus-agent-expire-group group articles force) |
| 3515 | (if (or (not (eq articles t)) |
| 3516 | (yes-or-no-p "Are you sure that you want to expire all \ |
| 3517 | articles in every agentized group? ")) |
| 3518 | (let ((methods (gnus-agent-covered-methods)) |
| 3519 | ;; Bind gnus-agent-expire-current-dirs to enable tracking |
| 3520 | ;; of agent directories. |
| 3521 | (gnus-agent-expire-current-dirs nil) |
| 3522 | ;; Bind gnus-agent-expire-stats to enable tracking of |
| 3523 | ;; expiration statistics across all groups |
| 3524 | (gnus-agent-expire-stats (list 0 0 0.0)) |
| 3525 | gnus-command-method overview orig) |
| 3526 | (setq overview (gnus-get-buffer-create " *expire overview*")) |
| 3527 | (unwind-protect |
| 3528 | (while (setq gnus-command-method (pop methods)) |
| 3529 | (let ((active-file (gnus-agent-lib-file "active"))) |
| 3530 | (when (file-exists-p active-file) |
| 3531 | (with-temp-buffer |
| 3532 | (nnheader-insert-file-contents active-file) |
| 3533 | (gnus-active-to-gnus-format |
| 3534 | gnus-command-method |
| 3535 | (setq orig (gnus-make-hashtable |
| 3536 | (count-lines (point-min) (point-max)))))) |
| 3537 | (dolist (expiring-group (gnus-groups-from-server |
| 3538 | gnus-command-method)) |
| 3539 | (let* ((active |
| 3540 | (gnus-gethash-safe expiring-group orig))) |
| 3541 | |
| 3542 | (when active |
| 3543 | (save-excursion |
| 3544 | (gnus-agent-expire-group-1 |
| 3545 | expiring-group overview active articles force)))))))) |
| 3546 | (kill-buffer overview)) |
| 3547 | (gnus-agent-expire-unagentized-dirs) |
| 3548 | (gnus-message 4 "%s" (gnus-agent-expire-done-message)))))) |
| 3549 | |
| 3550 | (defun gnus-agent-expire-done-message () |
| 3551 | (if (and (> gnus-verbose 4) |
| 3552 | (boundp 'gnus-agent-expire-stats)) |
| 3553 | (let* ((stats (symbol-value 'gnus-agent-expire-stats)) |
| 3554 | (size (nth 2 stats)) |
| 3555 | (units '(B KB MB GB))) |
| 3556 | (while (and (> size 1024.0) |
| 3557 | (cdr units)) |
| 3558 | (setq size (/ size 1024.0) |
| 3559 | units (cdr units))) |
| 3560 | |
| 3561 | (format "Expiry recovered %d NOV entries, deleted %d files,\ |
| 3562 | and freed %f %s." |
| 3563 | (nth 0 stats) |
| 3564 | (nth 1 stats) |
| 3565 | size (car units))) |
| 3566 | "Expiry...done")) |
| 3567 | |
| 3568 | (defun gnus-agent-expire-unagentized-dirs () |
| 3569 | (when (and gnus-agent-expire-unagentized-dirs |
| 3570 | (boundp 'gnus-agent-expire-current-dirs)) |
| 3571 | (let* ((keep (gnus-make-hashtable)) |
| 3572 | ;; Formally bind gnus-agent-expire-current-dirs so that the |
| 3573 | ;; compiler will not complain about free references. |
| 3574 | (gnus-agent-expire-current-dirs |
| 3575 | (symbol-value 'gnus-agent-expire-current-dirs)) |
| 3576 | dir |
| 3577 | (file-name-coding-system nnmail-pathname-coding-system)) |
| 3578 | |
| 3579 | (gnus-sethash gnus-agent-directory t keep) |
| 3580 | (while gnus-agent-expire-current-dirs |
| 3581 | (setq dir (pop gnus-agent-expire-current-dirs)) |
| 3582 | (when (and (stringp dir) |
| 3583 | (file-directory-p dir)) |
| 3584 | (while (not (gnus-gethash dir keep)) |
| 3585 | (gnus-sethash dir t keep) |
| 3586 | (setq dir (file-name-directory (directory-file-name dir)))))) |
| 3587 | |
| 3588 | (let* (to-remove |
| 3589 | checker |
| 3590 | (checker |
| 3591 | (function |
| 3592 | (lambda (d) |
| 3593 | "Given a directory, check it and its subdirectories for |
| 3594 | membership in the keep hash. If it isn't found, add |
| 3595 | it to to-remove." |
| 3596 | (let ((files (directory-files d)) |
| 3597 | file) |
| 3598 | (while (setq file (pop files)) |
| 3599 | (cond ((equal file ".") ; Ignore self |
| 3600 | nil) |
| 3601 | ((equal file "..") ; Ignore parent |
| 3602 | nil) |
| 3603 | ((equal file ".overview") |
| 3604 | ;; Directory must contain .overview to be |
| 3605 | ;; agent's cache of a group. |
| 3606 | (let ((d (file-name-as-directory d)) |
| 3607 | r) |
| 3608 | ;; Search ancestor's for last directory NOT |
| 3609 | ;; found in keep hash. |
| 3610 | (while (not (gnus-gethash |
| 3611 | (setq d (file-name-directory d)) keep)) |
| 3612 | (setq r d |
| 3613 | d (directory-file-name d))) |
| 3614 | ;; if ANY ancestor was NOT in keep hash and |
| 3615 | ;; it it's already in to-remove, add it to |
| 3616 | ;; to-remove. |
| 3617 | (if (and r |
| 3618 | (not (member r to-remove))) |
| 3619 | (push r to-remove)))) |
| 3620 | ((file-directory-p (setq file (nnheader-concat d file))) |
| 3621 | (funcall checker file))))))))) |
| 3622 | (funcall checker (expand-file-name gnus-agent-directory)) |
| 3623 | |
| 3624 | (when (and to-remove |
| 3625 | (or gnus-expert-user |
| 3626 | (gnus-y-or-n-p |
| 3627 | "gnus-agent-expire has identified local directories that are\ |
| 3628 | not currently required by any agentized group. Do you wish to consider\ |
| 3629 | deleting them?"))) |
| 3630 | (while to-remove |
| 3631 | (let ((dir (pop to-remove))) |
| 3632 | (if (or gnus-expert-user |
| 3633 | (gnus-y-or-n-p (format "Delete %s? " dir))) |
| 3634 | (let* (delete-recursive |
| 3635 | files f |
| 3636 | (delete-recursive |
| 3637 | (function |
| 3638 | (lambda (f-or-d) |
| 3639 | (ignore-errors |
| 3640 | (if (file-directory-p f-or-d) |
| 3641 | (condition-case nil |
| 3642 | (delete-directory f-or-d) |
| 3643 | (file-error |
| 3644 | (setq files (directory-files f-or-d)) |
| 3645 | (while files |
| 3646 | (setq f (pop files)) |
| 3647 | (or (member f '("." "..")) |
| 3648 | (funcall delete-recursive |
| 3649 | (nnheader-concat |
| 3650 | f-or-d f)))) |
| 3651 | (delete-directory f-or-d))) |
| 3652 | (delete-file f-or-d))))))) |
| 3653 | (funcall delete-recursive dir)))))))))) |
| 3654 | |
| 3655 | ;;;###autoload |
| 3656 | (defun gnus-agent-batch () |
| 3657 | "Start Gnus, send queue and fetch session." |
| 3658 | (interactive) |
| 3659 | (let ((init-file-user "") |
| 3660 | (gnus-always-read-dribble-file t)) |
| 3661 | (gnus)) |
| 3662 | (let ((gnus-agent-confirmation-function 'gnus-agent-batch-confirmation)) |
| 3663 | (gnus-group-send-queue) |
| 3664 | (gnus-agent-fetch-session))) |
| 3665 | |
| 3666 | (defun gnus-agent-unread-articles (group) |
| 3667 | (let* ((read (gnus-info-read (gnus-get-info group))) |
| 3668 | (known (gnus-agent-load-alist group)) |
| 3669 | (unread (list nil)) |
| 3670 | (tail-unread unread)) |
| 3671 | (while (and known read) |
| 3672 | (let ((candidate (car (pop known)))) |
| 3673 | (while (let* ((range (car read)) |
| 3674 | (min (if (numberp range) range (car range))) |
| 3675 | (max (if (numberp range) range (cdr range)))) |
| 3676 | (cond ((or (not min) |
| 3677 | (< candidate min)) |
| 3678 | (gnus-agent-append-to-list tail-unread candidate) |
| 3679 | nil) |
| 3680 | ((> candidate max) |
| 3681 | (setq read (cdr read)) |
| 3682 | ;; return t so that I always loop one more |
| 3683 | ;; time. If I just iterated off the end of |
| 3684 | ;; read, min will become nil and the current |
| 3685 | ;; candidate will be added to the unread list. |
| 3686 | t)))))) |
| 3687 | (while known |
| 3688 | (gnus-agent-append-to-list tail-unread (car (pop known)))) |
| 3689 | (cdr unread))) |
| 3690 | |
| 3691 | (defun gnus-agent-uncached-articles (articles group &optional cached-header) |
| 3692 | "Restrict ARTICLES to numbers already fetched. |
| 3693 | Returns a sublist of ARTICLES that excludes those article ids in GROUP |
| 3694 | that have already been fetched. |
| 3695 | If CACHED-HEADER is nil, articles are only excluded if the article itself |
| 3696 | has been fetched." |
| 3697 | |
| 3698 | ;; Logically equivalent to: (gnus-sorted-difference articles (mapcar |
| 3699 | ;; 'car gnus-agent-article-alist)) |
| 3700 | |
| 3701 | ;; Functionally, I don't need to construct a temp list using mapcar. |
| 3702 | |
| 3703 | (if (and (or gnus-agent-cache (not gnus-plugged)) |
| 3704 | (gnus-agent-load-alist group)) |
| 3705 | (let* ((ref gnus-agent-article-alist) |
| 3706 | (arts articles) |
| 3707 | (uncached (list nil)) |
| 3708 | (tail-uncached uncached)) |
| 3709 | (while (and ref arts) |
| 3710 | (let ((v1 (car arts)) |
| 3711 | (v2 (caar ref))) |
| 3712 | (cond ((< v1 v2) ; v1 does not appear in the reference list |
| 3713 | (gnus-agent-append-to-list tail-uncached v1) |
| 3714 | (setq arts (cdr arts))) |
| 3715 | ((= v1 v2) |
| 3716 | (unless (or cached-header (cdar ref)) ; v1 is already cached |
| 3717 | (gnus-agent-append-to-list tail-uncached v1)) |
| 3718 | (setq arts (cdr arts)) |
| 3719 | (setq ref (cdr ref))) |
| 3720 | (t ; reference article (v2) preceeds the list being filtered |
| 3721 | (setq ref (cdr ref)))))) |
| 3722 | (while arts |
| 3723 | (gnus-agent-append-to-list tail-uncached (pop arts))) |
| 3724 | (cdr uncached)) |
| 3725 | ;; if gnus-agent-load-alist fails, no articles are cached. |
| 3726 | articles)) |
| 3727 | |
| 3728 | (defun gnus-agent-retrieve-headers (articles group &optional fetch-old) |
| 3729 | (save-excursion |
| 3730 | (gnus-agent-create-buffer) |
| 3731 | (let ((gnus-decode-encoded-word-function 'identity) |
| 3732 | (gnus-decode-encoded-address-function 'identity) |
| 3733 | (file (gnus-agent-article-name ".overview" group)) |
| 3734 | cached-articles uncached-articles |
| 3735 | (file-name-coding-system nnmail-pathname-coding-system)) |
| 3736 | (gnus-make-directory (nnheader-translate-file-chars |
| 3737 | (file-name-directory file) t)) |
| 3738 | |
| 3739 | ;; Populate temp buffer with known headers |
| 3740 | (when (file-exists-p file) |
| 3741 | (with-current-buffer gnus-agent-overview-buffer |
| 3742 | (erase-buffer) |
| 3743 | (let ((nnheader-file-coding-system |
| 3744 | gnus-agent-file-coding-system)) |
| 3745 | (nnheader-insert-nov-file file (car articles))))) |
| 3746 | |
| 3747 | (if (setq uncached-articles (gnus-agent-uncached-articles articles group |
| 3748 | t)) |
| 3749 | (progn |
| 3750 | ;; Populate nntp-server-buffer with uncached headers |
| 3751 | (set-buffer nntp-server-buffer) |
| 3752 | (erase-buffer) |
| 3753 | (cond ((not (eq 'nov (let (gnus-agent) ; Turn off agent |
| 3754 | (gnus-retrieve-headers |
| 3755 | uncached-articles group fetch-old)))) |
| 3756 | (nnvirtual-convert-headers)) |
| 3757 | ((eq 'nntp (car gnus-current-select-method)) |
| 3758 | ;; The author of gnus-get-newsgroup-headers-xover |
| 3759 | ;; reports that the XOVER command is commonly |
| 3760 | ;; unreliable. The problem is that recently |
| 3761 | ;; posted articles may not be entered into the |
| 3762 | ;; NOV database in time to respond to my XOVER |
| 3763 | ;; query. |
| 3764 | ;; |
| 3765 | ;; I'm going to use his assumption that the NOV |
| 3766 | ;; database is updated in order of ascending |
| 3767 | ;; article ID. Therefore, a response containing |
| 3768 | ;; article ID N implies that all articles from 1 |
| 3769 | ;; to N-1 are up-to-date. Therefore, missing |
| 3770 | ;; articles in that range have expired. |
| 3771 | |
| 3772 | (set-buffer nntp-server-buffer) |
| 3773 | (let* ((fetched-articles (list nil)) |
| 3774 | (tail-fetched-articles fetched-articles) |
| 3775 | (min (cond ((numberp fetch-old) |
| 3776 | (max 1 (- (car articles) fetch-old))) |
| 3777 | (fetch-old |
| 3778 | 1) |
| 3779 | (t |
| 3780 | (car articles)))) |
| 3781 | (max (car (last articles)))) |
| 3782 | |
| 3783 | ;; Get the list of articles that were fetched |
| 3784 | (goto-char (point-min)) |
| 3785 | (let ((pm (point-max)) |
| 3786 | art) |
| 3787 | (while (< (point) pm) |
| 3788 | (when (setq art (gnus-agent-read-article-number)) |
| 3789 | (gnus-agent-append-to-list tail-fetched-articles art)) |
| 3790 | (forward-line 1))) |
| 3791 | |
| 3792 | ;; Clip this list to the headers that will |
| 3793 | ;; actually be returned |
| 3794 | (setq fetched-articles (gnus-list-range-intersection |
| 3795 | (cdr fetched-articles) |
| 3796 | (cons min max))) |
| 3797 | |
| 3798 | ;; Clip the uncached articles list to exclude |
| 3799 | ;; IDs after the last FETCHED header. The |
| 3800 | ;; excluded IDs may be fetchable using HEAD. |
| 3801 | (if (car tail-fetched-articles) |
| 3802 | (setq uncached-articles |
| 3803 | (gnus-list-range-intersection |
| 3804 | uncached-articles |
| 3805 | (cons (car uncached-articles) |
| 3806 | (car tail-fetched-articles))))) |
| 3807 | |
| 3808 | ;; Create the list of articles that were |
| 3809 | ;; "successfully" fetched. Success, in this |
| 3810 | ;; case, means that the ID should not be |
| 3811 | ;; fetched again. In the case of an expired |
| 3812 | ;; article, the header will not be fetched. |
| 3813 | (setq uncached-articles |
| 3814 | (gnus-sorted-nunion fetched-articles |
| 3815 | uncached-articles)) |
| 3816 | ))) |
| 3817 | |
| 3818 | ;; Erase the temp buffer |
| 3819 | (set-buffer gnus-agent-overview-buffer) |
| 3820 | (erase-buffer) |
| 3821 | |
| 3822 | ;; Copy the nntp-server-buffer to the temp buffer |
| 3823 | (set-buffer nntp-server-buffer) |
| 3824 | (copy-to-buffer gnus-agent-overview-buffer (point-min) (point-max)) |
| 3825 | |
| 3826 | ;; Merge the temp buffer with the known headers (found on |
| 3827 | ;; disk in FILE) into the nntp-server-buffer |
| 3828 | (when uncached-articles |
| 3829 | (gnus-agent-braid-nov group uncached-articles file)) |
| 3830 | |
| 3831 | ;; Save the new set of known headers to FILE |
| 3832 | (set-buffer nntp-server-buffer) |
| 3833 | (let ((coding-system-for-write |
| 3834 | gnus-agent-file-coding-system)) |
| 3835 | (gnus-agent-check-overview-buffer) |
| 3836 | (write-region (point-min) (point-max) file nil 'silent)) |
| 3837 | |
| 3838 | (gnus-agent-update-view-total-fetched-for group t) |
| 3839 | |
| 3840 | ;; Update the group's article alist to include the newly |
| 3841 | ;; fetched articles. |
| 3842 | (gnus-agent-load-alist group) |
| 3843 | (gnus-agent-save-alist group uncached-articles nil) |
| 3844 | ) |
| 3845 | |
| 3846 | ;; Copy the temp buffer to the nntp-server-buffer |
| 3847 | (set-buffer nntp-server-buffer) |
| 3848 | (erase-buffer) |
| 3849 | (insert-buffer-substring gnus-agent-overview-buffer))) |
| 3850 | |
| 3851 | (if (and fetch-old |
| 3852 | (not (numberp fetch-old))) |
| 3853 | t ; Don't remove anything. |
| 3854 | (nnheader-nov-delete-outside-range |
| 3855 | (if fetch-old (max 1 (- (car articles) fetch-old)) |
| 3856 | (car articles)) |
| 3857 | (car (last articles))) |
| 3858 | t) |
| 3859 | |
| 3860 | 'nov)) |
| 3861 | |
| 3862 | (defun gnus-agent-request-article (article group) |
| 3863 | "Retrieve ARTICLE in GROUP from the agent cache." |
| 3864 | (when (and gnus-agent |
| 3865 | (or gnus-agent-cache |
| 3866 | (not gnus-plugged)) |
| 3867 | (numberp article)) |
| 3868 | (let* ((gnus-command-method (gnus-find-method-for-group group)) |
| 3869 | (file (gnus-agent-article-name (number-to-string article) group)) |
| 3870 | (buffer-read-only nil) |
| 3871 | (file-name-coding-system nnmail-pathname-coding-system)) |
| 3872 | (when (and (file-exists-p file) |
| 3873 | (> (nth 7 (file-attributes file)) 0)) |
| 3874 | (erase-buffer) |
| 3875 | (gnus-kill-all-overlays) |
| 3876 | (let ((coding-system-for-read gnus-cache-coding-system)) |
| 3877 | (insert-file-contents file)) |
| 3878 | t)))) |
| 3879 | |
| 3880 | (defun gnus-agent-regenerate-group (group &optional reread) |
| 3881 | "Regenerate GROUP. |
| 3882 | If REREAD is t, all articles in the .overview are marked as unread. |
| 3883 | If REREAD is a list, the specified articles will be marked as unread. |
| 3884 | In addition, their NOV entries in .overview will be refreshed using |
| 3885 | the articles' current headers. |
| 3886 | If REREAD is not nil, downloaded articles are marked as unread." |
| 3887 | (interactive |
| 3888 | (list (gnus-agent-read-group) |
| 3889 | (catch 'mark |
| 3890 | (while (let (c |
| 3891 | (cursor-in-echo-area t) |
| 3892 | (echo-keystrokes 0)) |
| 3893 | (message "Mark as unread: (n)one / (a)ll / all (d)ownloaded articles? (n) ") |
| 3894 | (setq c (read-char-exclusive)) |
| 3895 | |
| 3896 | (cond ((or (eq c ?\r) (eq c ?n) (eq c ?N)) |
| 3897 | (throw 'mark nil)) |
| 3898 | ((or (eq c ?a) (eq c ?A)) |
| 3899 | (throw 'mark t)) |
| 3900 | ((or (eq c ?d) (eq c ?D)) |
| 3901 | (throw 'mark 'some))) |
| 3902 | (gnus-message 3 "Ignoring unexpected input") |
| 3903 | (sit-for 1) |
| 3904 | t))))) |
| 3905 | (when group |
| 3906 | (gnus-message 5 "Regenerating in %s" (gnus-agent-decoded-group-name group)) |
| 3907 | (let* ((gnus-command-method (or gnus-command-method |
| 3908 | (gnus-find-method-for-group group))) |
| 3909 | (file (gnus-agent-article-name ".overview" group)) |
| 3910 | (dir (file-name-directory file)) |
| 3911 | point |
| 3912 | (file-name-coding-system nnmail-pathname-coding-system) |
| 3913 | (downloaded (if (file-exists-p dir) |
| 3914 | (sort (delq nil (mapcar (lambda (name) |
| 3915 | (and (not (file-directory-p (nnheader-concat dir name))) |
| 3916 | (string-to-number name))) |
| 3917 | (directory-files dir nil "^[0-9]+$" t))) |
| 3918 | '>) |
| 3919 | (progn (gnus-make-directory dir) nil))) |
| 3920 | dl nov-arts |
| 3921 | alist header |
| 3922 | regenerated) |
| 3923 | |
| 3924 | (mm-with-unibyte-buffer |
| 3925 | (if (file-exists-p file) |
| 3926 | (let ((nnheader-file-coding-system |
| 3927 | gnus-agent-file-coding-system)) |
| 3928 | (nnheader-insert-file-contents file))) |
| 3929 | (set-buffer-modified-p nil) |
| 3930 | |
| 3931 | ;; Load the article IDs found in the overview file. As a |
| 3932 | ;; side-effect, validate the file contents. |
| 3933 | (let ((load t)) |
| 3934 | (while load |
| 3935 | (setq load nil) |
| 3936 | (goto-char (point-min)) |
| 3937 | (while (< (point) (point-max)) |
| 3938 | (cond ((and (looking-at "[0-9]+\t") |
| 3939 | (<= (- (match-end 0) (match-beginning 0)) 9)) |
| 3940 | (push (read (current-buffer)) nov-arts) |
| 3941 | (forward-line 1) |
| 3942 | (let ((l1 (car nov-arts)) |
| 3943 | (l2 (cadr nov-arts))) |
| 3944 | (cond ((and (listp reread) (memq l1 reread)) |
| 3945 | (gnus-delete-line) |
| 3946 | (setq nov-arts (cdr nov-arts)) |
| 3947 | (gnus-message 4 "gnus-agent-regenerate-group: NOV\ |
| 3948 | entry of article %s deleted." l1)) |
| 3949 | ((not l2) |
| 3950 | nil) |
| 3951 | ((< l1 l2) |
| 3952 | (gnus-message 3 "gnus-agent-regenerate-group: NOV\ |
| 3953 | entries are NOT in ascending order.") |
| 3954 | ;; Don't sort now as I haven't verified |
| 3955 | ;; that every line begins with a number |
| 3956 | (setq load t)) |
| 3957 | ((= l1 l2) |
| 3958 | (forward-line -1) |
| 3959 | (gnus-message 4 "gnus-agent-regenerate-group: NOV\ |
| 3960 | entries contained duplicate of article %s. Duplicate deleted." l1) |
| 3961 | (gnus-delete-line) |
| 3962 | (setq nov-arts (cdr nov-arts)))))) |
| 3963 | (t |
| 3964 | (gnus-message 1 "gnus-agent-regenerate-group: NOV\ |
| 3965 | entries contained line that did not begin with an article number. Deleted\ |
| 3966 | line.") |
| 3967 | (gnus-delete-line)))) |
| 3968 | (when load |
| 3969 | (gnus-message 5 "gnus-agent-regenerate-group: Sorting NOV\ |
| 3970 | entries into ascending order.") |
| 3971 | (sort-numeric-fields 1 (point-min) (point-max)) |
| 3972 | (setq nov-arts nil)))) |
| 3973 | (gnus-agent-check-overview-buffer) |
| 3974 | |
| 3975 | ;; Construct a new article alist whose nodes match every header |
| 3976 | ;; in the .overview file. As a side-effect, missing headers are |
| 3977 | ;; reconstructed from the downloaded article file. |
| 3978 | (while (or downloaded nov-arts) |
| 3979 | (cond ((and downloaded |
| 3980 | (or (not nov-arts) |
| 3981 | (> (car downloaded) (car nov-arts)))) |
| 3982 | ;; This entry is missing from the overview file |
| 3983 | (gnus-message 3 "Regenerating NOV %s %d..." |
| 3984 | (gnus-agent-decoded-group-name group) |
| 3985 | (car downloaded)) |
| 3986 | (let ((file (concat dir (number-to-string (car downloaded))))) |
| 3987 | (mm-with-unibyte-buffer |
| 3988 | (nnheader-insert-file-contents file) |
| 3989 | (nnheader-remove-body) |
| 3990 | (setq header (nnheader-parse-naked-head))) |
| 3991 | (mail-header-set-number header (car downloaded)) |
| 3992 | (if nov-arts |
| 3993 | (let ((key (concat "^" (int-to-string (car nov-arts)) |
| 3994 | "\t"))) |
| 3995 | (or (re-search-backward key nil t) |
| 3996 | (re-search-forward key)) |
| 3997 | (forward-line 1)) |
| 3998 | (goto-char (point-min))) |
| 3999 | (nnheader-insert-nov header)) |
| 4000 | (setq nov-arts (cons (car downloaded) nov-arts))) |
| 4001 | ((eq (car downloaded) (car nov-arts)) |
| 4002 | ;; This entry in the overview has been downloaded |
| 4003 | (push (cons (car downloaded) |
| 4004 | (time-to-days |
| 4005 | (nth 5 (file-attributes |
| 4006 | (concat dir (number-to-string |
| 4007 | (car downloaded))))))) alist) |
| 4008 | (setq downloaded (cdr downloaded)) |
| 4009 | (setq nov-arts (cdr nov-arts))) |
| 4010 | (t |
| 4011 | ;; This entry in the overview has not been downloaded |
| 4012 | (push (cons (car nov-arts) nil) alist) |
| 4013 | (setq nov-arts (cdr nov-arts))))) |
| 4014 | |
| 4015 | ;; When gnus-agent-consider-all-articles is set, |
| 4016 | ;; gnus-agent-regenerate-group should NOT remove article IDs from |
| 4017 | ;; the alist. Those IDs serve as markers to indicate that an |
| 4018 | ;; attempt has been made to fetch that article's header. |
| 4019 | |
| 4020 | ;; When gnus-agent-consider-all-articles is NOT set, |
| 4021 | ;; gnus-agent-regenerate-group can remove the article ID of every |
| 4022 | ;; article (with the exception of the last ID in the list - it's |
| 4023 | ;; special) that no longer appears in the overview. In this |
| 4024 | ;; situtation, the last article ID in the list implies that it, |
| 4025 | ;; and every article ID preceeding it, have been fetched from the |
| 4026 | ;; server. |
| 4027 | |
| 4028 | (if gnus-agent-consider-all-articles |
| 4029 | ;; Restore all article IDs that were not found in the overview file. |
| 4030 | (let* ((n (cons nil alist)) |
| 4031 | (merged n) |
| 4032 | (o (gnus-agent-load-alist group))) |
| 4033 | (while o |
| 4034 | (let ((nID (caadr n)) |
| 4035 | (oID (caar o))) |
| 4036 | (cond ((not nID) |
| 4037 | (setq n (setcdr n (list (list oID)))) |
| 4038 | (setq o (cdr o))) |
| 4039 | ((< oID nID) |
| 4040 | (setcdr n (cons (list oID) (cdr n))) |
| 4041 | (setq o (cdr o))) |
| 4042 | ((= oID nID) |
| 4043 | (setq o (cdr o)) |
| 4044 | (setq n (cdr n))) |
| 4045 | (t |
| 4046 | (setq n (cdr n)))))) |
| 4047 | (setq alist (cdr merged))) |
| 4048 | ;; Restore the last article ID if it is not already in the new alist |
| 4049 | (let ((n (last alist)) |
| 4050 | (o (last (gnus-agent-load-alist group)))) |
| 4051 | (cond ((not o) |
| 4052 | nil) |
| 4053 | ((not n) |
| 4054 | (push (cons (caar o) nil) alist)) |
| 4055 | ((< (caar n) (caar o)) |
| 4056 | (setcdr n (list (car o))))))) |
| 4057 | |
| 4058 | (let ((inhibit-quit t)) |
| 4059 | (if (setq regenerated (buffer-modified-p)) |
| 4060 | (let ((coding-system-for-write gnus-agent-file-coding-system)) |
| 4061 | (write-region (point-min) (point-max) file nil 'silent))) |
| 4062 | |
| 4063 | (setq regenerated (or regenerated |
| 4064 | (and reread gnus-agent-article-alist) |
| 4065 | (not (equal alist gnus-agent-article-alist)))) |
| 4066 | |
| 4067 | (setq gnus-agent-article-alist alist) |
| 4068 | |
| 4069 | (when regenerated |
| 4070 | (gnus-agent-save-alist group) |
| 4071 | |
| 4072 | ;; I have to alter the group's active range NOW as |
| 4073 | ;; gnus-make-ascending-articles-unread will use it to |
| 4074 | ;; recalculate the number of unread articles in the group |
| 4075 | |
| 4076 | (let ((group (gnus-group-real-name group)) |
| 4077 | (group-active (or (gnus-active group) |
| 4078 | (gnus-activate-group group)))) |
| 4079 | (gnus-agent-possibly-alter-active group group-active))))) |
| 4080 | |
| 4081 | (when (and reread gnus-agent-article-alist) |
| 4082 | (gnus-agent-synchronize-group-flags |
| 4083 | group |
| 4084 | (list (list |
| 4085 | (if (listp reread) |
| 4086 | reread |
| 4087 | (delq nil (mapcar (function (lambda (c) |
| 4088 | (cond ((eq reread t) |
| 4089 | (car c)) |
| 4090 | ((cdr c) |
| 4091 | (car c))))) |
| 4092 | gnus-agent-article-alist))) |
| 4093 | 'del '(read))) |
| 4094 | gnus-command-method) |
| 4095 | |
| 4096 | (when regenerated |
| 4097 | (gnus-agent-update-files-total-fetched-for group nil))) |
| 4098 | |
| 4099 | (gnus-message 5 "") |
| 4100 | regenerated))) |
| 4101 | |
| 4102 | ;;;###autoload |
| 4103 | (defun gnus-agent-regenerate (&optional clean reread) |
| 4104 | "Regenerate all agent covered files. |
| 4105 | If CLEAN, obsolete (ignore)." |
| 4106 | (interactive "P") |
| 4107 | (let (regenerated) |
| 4108 | (gnus-message 4 "Regenerating Gnus agent files...") |
| 4109 | (dolist (gnus-command-method (gnus-agent-covered-methods)) |
| 4110 | (dolist (group (gnus-groups-from-server gnus-command-method)) |
| 4111 | (setq regenerated (or (gnus-agent-regenerate-group group reread) |
| 4112 | regenerated)))) |
| 4113 | (gnus-message 4 "Regenerating Gnus agent files...done") |
| 4114 | |
| 4115 | regenerated)) |
| 4116 | |
| 4117 | (defun gnus-agent-go-online (&optional force) |
| 4118 | "Switch servers into online status." |
| 4119 | (interactive (list t)) |
| 4120 | (dolist (server gnus-opened-servers) |
| 4121 | (when (eq (nth 1 server) 'offline) |
| 4122 | (if (if (eq force 'ask) |
| 4123 | (gnus-y-or-n-p |
| 4124 | (format "Switch %s:%s into online status? " |
| 4125 | (caar server) (cadar server))) |
| 4126 | force) |
| 4127 | (setcar (nthcdr 1 server) 'close))))) |
| 4128 | |
| 4129 | (defun gnus-agent-toggle-group-plugged (group) |
| 4130 | "Toggle the status of the server of the current group." |
| 4131 | (interactive (list (gnus-group-group-name))) |
| 4132 | (let* ((method (gnus-find-method-for-group group)) |
| 4133 | (status (cadr (assoc method gnus-opened-servers)))) |
| 4134 | (if (eq status 'offline) |
| 4135 | (gnus-server-set-status method 'closed) |
| 4136 | (gnus-close-server method) |
| 4137 | (gnus-server-set-status method 'offline)) |
| 4138 | (message "Turn %s:%s from %s to %s." (car method) (cadr method) |
| 4139 | (if (eq status 'offline) 'offline 'online) |
| 4140 | (if (eq status 'offline) 'online 'offline)))) |
| 4141 | |
| 4142 | (defun gnus-agent-group-covered-p (group) |
| 4143 | (gnus-agent-method-p (gnus-group-method group))) |
| 4144 | |
| 4145 | (defun gnus-agent-update-files-total-fetched-for |
| 4146 | (group delta &optional method path) |
| 4147 | "Update, or set, the total disk space used by the articles that the |
| 4148 | agent has fetched." |
| 4149 | (when gnus-agent-total-fetched-hashtb |
| 4150 | (gnus-agent-with-refreshed-group |
| 4151 | group |
| 4152 | ;; if null, gnus-agent-group-pathname will calc method. |
| 4153 | (let* ((gnus-command-method method) |
| 4154 | (path (or path (gnus-agent-group-pathname group))) |
| 4155 | (entry (or (gnus-gethash path gnus-agent-total-fetched-hashtb) |
| 4156 | (gnus-sethash path (make-list 3 0) |
| 4157 | gnus-agent-total-fetched-hashtb))) |
| 4158 | (file-name-coding-system nnmail-pathname-coding-system)) |
| 4159 | (when (listp delta) |
| 4160 | (if delta |
| 4161 | (let ((sum 0.0) |
| 4162 | file) |
| 4163 | (while (setq file (pop delta)) |
| 4164 | (incf sum (float (or (nth 7 (file-attributes |
| 4165 | (nnheader-concat |
| 4166 | path |
| 4167 | (if (numberp file) |
| 4168 | (number-to-string file) |
| 4169 | file)))) 0)))) |
| 4170 | (setq delta sum)) |
| 4171 | (let ((sum (- (nth 2 entry))) |
| 4172 | (info (directory-files-and-attributes path nil "^-?[0-9]+$" t)) |
| 4173 | file) |
| 4174 | (while (setq file (pop info)) |
| 4175 | (incf sum (float (or (nth 8 file) 0)))) |
| 4176 | (setq delta sum)))) |
| 4177 | |
| 4178 | (setq gnus-agent-need-update-total-fetched-for t) |
| 4179 | (incf (nth 2 entry) delta))))) |
| 4180 | |
| 4181 | (defun gnus-agent-update-view-total-fetched-for |
| 4182 | (group agent-over &optional method path) |
| 4183 | "Update, or set, the total disk space used by the .agentview and |
| 4184 | .overview files. These files are calculated separately as they can be |
| 4185 | modified." |
| 4186 | (when gnus-agent-total-fetched-hashtb |
| 4187 | (gnus-agent-with-refreshed-group |
| 4188 | group |
| 4189 | ;; if null, gnus-agent-group-pathname will calc method. |
| 4190 | (let* ((gnus-command-method method) |
| 4191 | (path (or path (gnus-agent-group-pathname group))) |
| 4192 | (entry (or (gnus-gethash path gnus-agent-total-fetched-hashtb) |
| 4193 | (gnus-sethash path (make-list 3 0) |
| 4194 | gnus-agent-total-fetched-hashtb))) |
| 4195 | (file-name-coding-system nnmail-pathname-coding-system) |
| 4196 | (size (or (nth 7 (file-attributes |
| 4197 | (nnheader-concat |
| 4198 | path (if agent-over |
| 4199 | ".overview" |
| 4200 | ".agentview")))) |
| 4201 | 0))) |
| 4202 | (setq gnus-agent-need-update-total-fetched-for t) |
| 4203 | (setf (nth (if agent-over 1 0) entry) size))))) |
| 4204 | |
| 4205 | (defun gnus-agent-total-fetched-for (group &optional method no-inhibit) |
| 4206 | "Get the total disk space used by the specified GROUP." |
| 4207 | (unless (equal group "dummy.group") |
| 4208 | (unless gnus-agent-total-fetched-hashtb |
| 4209 | (setq gnus-agent-total-fetched-hashtb (gnus-make-hashtable 1024))) |
| 4210 | |
| 4211 | ;; if null, gnus-agent-group-pathname will calc method. |
| 4212 | (let* ((gnus-command-method method) |
| 4213 | (path (gnus-agent-group-pathname group)) |
| 4214 | (entry (gnus-gethash path gnus-agent-total-fetched-hashtb))) |
| 4215 | (if entry |
| 4216 | (apply '+ entry) |
| 4217 | (let ((gnus-agent-inhibit-update-total-fetched-for (not no-inhibit))) |
| 4218 | (+ |
| 4219 | (gnus-agent-update-view-total-fetched-for group nil method path) |
| 4220 | (gnus-agent-update-view-total-fetched-for group t method path) |
| 4221 | (gnus-agent-update-files-total-fetched-for group nil method path))))))) |
| 4222 | |
| 4223 | (provide 'gnus-agent) |
| 4224 | |
| 4225 | ;;; gnus-agent.el ends here |