/usr/share/emacs/site-lisp/mew/mew-local.el is in mew-beta 7.0.50~6.7+0.20170719-1.
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;; Author: Kazu Yamamoto <Kazu@Mew.org>
;; Created: Dec 12, 2001
(defvar mew-local-folder-alist-file ".mew-folder-alist")
(defvar mew-local-folder-alist nil)
(defvar mew-local-folder-alist-time nil)
(defvar mew-local-friend-folder-list-file ".mew-friend-folder-list")
(defvar mew-local-friend-folder-list nil)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
;;; Listing directories
;;;
(defun mew-dir-list (dir)
(if (file-directory-p (expand-file-name dir))
(funcall mew-dir-list-function dir)
()))
(defun mew-dir-list-with-link-count (dir)
"Collecting a directory list under DIR.
Subdirectories are expressed by a list.
This function uses two techniques for speed up.
One is to gather candidates of directory by matching
'mew-regex-folder-candidate'. The default is
\"^[^.0-9]\\|^[0-9].*[^0-9]\". So, typical messages whose name is
numeric are not gathered. This makes it faster to check whether or not
each candidate is a directory in 'while' loop.
The other is to see if the link count of a directory is 2. If so, the
directory does not have subdirectories. So, it is not necessary to
trace down. This technique can be used on UNIX variants."
(let* ((default-directory (expand-file-name dir default-directory))
(dirent (directory-files "." nil mew-regex-folder-candidate)) ;; MUST sort
dirs ent subdirs)
(dolist (file dirent)
(setq ent (mew-file-chase-links file))
(when (file-directory-p ent)
(setq dirs (cons file dirs))
(when (and (mew-file-get-links ent) ;; necessary
(/= (mew-file-get-links ent) 2))
(setq subdirs (mew-dir-list-with-link-count file))
(if subdirs (setq dirs (cons subdirs dirs))))))
(nreverse dirs)))
(defun mew-dir-list-without-link-count (dir)
"Collecting a directory list under DIR.
Subdirectories are expressed by a list.
This function uses one technique for speed up.
It is to gather candidates of directory by matching
'mew-regex-folder-candidate'. The default is
\"^[^.0-9]\\|^[0-9].*[^0-9]\". So, typical messages whose name is
numeric are not gathered. This makes it faster to check whether or not
each candidate is a directory in 'while' loop."
(let* ((default-directory (expand-file-name dir default-directory))
(dirent (directory-files "." nil mew-regex-folder-candidate)) ;; MUST sort
dirs ent subdirs)
(dolist (file dirent)
(setq ent (mew-file-chase-links file))
(when (file-directory-p ent)
(setq dirs (cons file dirs))
(setq subdirs (mew-dir-list-without-link-count file))
(if subdirs (setq dirs (cons subdirs dirs)))))
(nreverse dirs)))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
;;; Folder list
;;;
(defun mew-local-folder-entry (ent1 ent2 make-list)
(if make-list
ent1
(mew-folder-func ent1 ent2)))
(defun mew-local-folder-make-alist (dirs prefix &optional make-list)
(let (fldpfx dir ret ent)
(if (= (length prefix) 1)
(setq fldpfx prefix)
(setq fldpfx (file-name-as-directory prefix)))
(while dirs
(setq dir (car dirs))
(setq dirs (cdr dirs))
(setq ent (concat fldpfx dir))
(cond
((consp (car dirs)) ;; not listp because nil is a list.
(cond
((or (equal mew-attach-folder ent) (equal mew-draft-folder ent))
(setq ret (cons (mew-local-folder-entry ent nil make-list) ret))
(setq dirs (cdr dirs))) ;; skip subfolder
(t
(setq ret (cons (mew-local-folder-entry (file-name-as-directory ent) dir make-list) ret))
(setq ret (nconc (mew-local-folder-make-alist (car dirs) ent make-list) ret))
(setq dirs (cdr dirs)))))
(t
(if (string-match mew-regex-ignore-folders ent)
(setq ret (cons (mew-local-folder-entry ent nil make-list) ret))
(setq ret (cons (mew-local-folder-entry ent dir make-list) ret))))))
ret))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
;;; Folders
;;;
(defun mew-local-folder-clean-up ()
(setq mew-local-folder-alist nil)
(setq mew-local-friend-folder-list nil))
(defun mew-local-folder-alist ()
(let* ((file (expand-file-name mew-local-folder-alist-file mew-conf-path))
(t1 (mew-file-get-time file))
(t2 mew-local-folder-alist-time))
(if (mew-compare-times t1 t2)
(mew-local-folder-load))
mew-local-folder-alist))
(defun mew-local-friend-folder-list ()
mew-local-friend-folder-list)
(defun mew-local-folder-load ()
(let ((file (expand-file-name mew-local-folder-alist-file mew-conf-path)))
(setq mew-local-folder-alist
(mew-lisp-load mew-local-folder-alist-file))
(setq mew-local-folder-alist-time (mew-file-get-time file))
(setq mew-local-friend-folder-list
(mew-lisp-load mew-local-friend-folder-list-file))))
(defun mew-local-folder-save ()
(let ((file (expand-file-name mew-local-folder-alist-file mew-conf-path)))
(mew-lisp-save mew-local-folder-alist-file
mew-local-folder-alist)
(setq mew-local-folder-alist-time (mew-file-get-time file))
(mew-lisp-save mew-local-friend-folder-list-file
mew-local-friend-folder-list)))
(defun mew-local-folder-set (folders friends)
(setq mew-local-folder-alist folders)
(setq mew-local-friend-folder-list friends)
(mew-local-folder-save))
(defun mew-local-update (&optional interactivep)
"Update the list of local folders."
(interactive)
(unless interactivep
(add-hook 'kill-emacs-hook 'mew-folder-clean-up)
(mew-local-folder-load))
;;
(when (or interactivep (null mew-local-folder-alist))
(message "Collecting local folders...")
(let* ((mail-dirs (mew-dir-list mew-mail-path))
(from-dirs (mew-dir-list (mew-expand-folder mew-friend-folder)))
(folders (mew-local-folder-make-alist mail-dirs mew-folder-local))
(friends (mew-local-folder-make-alist from-dirs mew-friend-folder t)))
(setq folders (nreverse folders))
(setq friends (nreverse friends))
(mew-local-folder-set folders friends))
(message "Collecting local folders...done")))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
;;; Folder sub function
;;;
(defun mew-local-folder-insert (folder)
"Insert FOLDER to 'mew-local-folder-alist'.
Binary search is used for speed reasons."
(let (dir subdir)
(unless (string-match mew-regex-ignore-folders folder)
(setq dir (directory-file-name (mew-folder-string folder)))
;; foo/bar -> foo/bar
;; foo/bar/ -> foo/bar
(setq subdir (file-name-nondirectory dir))
;; foo/bar -> bar
;; foo -> foo
)
(mew-folder-insert folder mew-local-folder-alist subdir)
(if (and (string-match (concat "^" (regexp-quote mew-friend-folder)) folder)
(not (member folder mew-local-friend-folder-list)))
(setq mew-local-friend-folder-list
(cons folder mew-local-friend-folder-list)))
(mew-local-folder-save)))
(defun mew-local-folder-delete (folder)
(mew-folder-delete folder mew-local-folder-alist)
(setq mew-local-friend-folder-list
(delete folder mew-local-friend-folder-list))
(mew-local-folder-save))
(defun mew-local-folder-check (folder &optional ask)
(let ((absdir (mew-expand-folder folder)))
(if (file-directory-p absdir)
t
(if (or (not ask)
(y-or-n-p (format "%s does not exist. Create it? " folder)))
(progn
(mew-make-directory absdir)
;; may be called by IMAP...
(if (mew-folder-localp folder)
(mew-local-folder-insert folder))
folder)
nil))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
;;; Process name
;;;
(defvar mew-local-info-list
'("directive" "buf" "bnm" "mdb" "flush" "rcnt" "rttl" "first" "case"))
(mew-info-defun "mew-local-" mew-local-info-list)
(defconst mew-local-info-prefix "mew-local-info-")
(defun mew-local-info-name (bnm)
(format "%s<%s>" mew-local-info-prefix bnm))
(defun mew-local-buffer-name (folder)
(concat mew-buffer-prefix folder))
(defun mew-local-debug (label string)
(when (mew-debug 'ls)
(with-current-buffer (get-buffer-create mew-buffer-debug)
(goto-char (point-max))
(insert (format "\n<%s>\n%s\n" label string)))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
;;; Scan
;;;
(defun mew-scan-mewl-folder (folder)
(mew-replace-character folder mew-sp ?\007))
(defun mew-scan-mewl-src (folder &optional range)
(setq folder (mew-scan-mewl-folder (mew-expand-folder2 folder)))
(if range
(list "-s" (format "%s %s" folder range))
(list "-s" folder)))
(defun mew-local-retrieve (directive &rest args)
;; 'inc folder opts
;; 'scan folder range
;; 'vir opts func lra erase
(mew-summary-with-mewl
(let* ((process-connection-type mew-connection-type1)
(bnm (mew-summary-folder-name 'ext))
(pnm (mew-local-info-name bnm))
(buf (get-buffer-create (mew-local-buffer-name bnm)))
range pro opts)
(message "Scanning %s..." bnm)
(mew-sinfo-set-summary-form (mew-get-summary-form bnm))
(mew-sinfo-set-summary-column (mew-get-summary-column bnm))
(mew-sinfo-set-unread-mark nil)
(mew-sinfo-set-scan-id nil)
(mew-sinfo-set-scan-md5 nil)
(mew-info-clean-up pnm)
(mew-local-set-directive pnm directive)
(mew-local-set-bnm pnm bnm)
(mew-local-set-buf pnm buf)
(mew-local-set-case pnm mew-case) ;; xxx specfy to mew-local-retrieve?
(cond
((eq directive 'inc)
(mew-sinfo-set-unread-mark (mew-get-unread-mark bnm))
(mew-local-set-flush pnm (nth 1 args))
(setq opts (append (nth 2 args) (mew-scan-mewl-src (nth 0 args)))))
((eq directive 'scan)
(setq range (nth 1 args))
(if (nth 2 args)
(progn
(mew-local-set-mdb pnm (mew-summary-mark-collect4))
(mew-erase-buffer)
(setq mew-summary-buffer-raw nil)
(mew-summary-folder-cache-save))
(mew-sinfo-set-unread-mark (mew-get-unread-mark bnm)))
(setq opts (mew-scan-mewl-src (nth 0 args) range)))
((eq directive 'vir)
(mew-sinfo-set-unread-mark (mew-get-unread-mark bnm))
(setq opts (nth 0 args))
(mew-vinfo-set-func (nth 1 args))
(mew-vinfo-set-lra (nth 2 args))
(unless (nth 3 args) (mew-erase-buffer))
(mew-local-set-rttl pnm (nth 4 args))))
(mew-sinfo-set-start-point (point)) ;; after erase-buffer
(mew-local-set-rcnt pnm 1)
(with-current-buffer buf
(mew-erase-buffer))
(setq opts (append (list "-b" mew-mail-path
"-l" (number-to-string mew-scan-max-field-length)
"-c" (number-to-string mew-scan-max-body-length)
"-w"
"-x" mew-suffix
"-f" (mapconcat 'identity
(nthcdr 2 mew-scan-fields)
","))
opts))
(setq pro (apply 'start-process pnm buf mew-prog-mewl opts))
(mew-summary-lock pro "Scanning")
(mew-set-process-cs pro mew-cs-text-for-net mew-cs-text-for-write)
;; text may be broken, so undecided is very dangerous!
(set-process-filter pro 'mew-local-filter)
(set-process-sentinel pro 'mew-local-sentinel)
(mew-process-silent-exit pro))))
(defun mew-local-filter (process string)
(let* ((width (1- (mew-scan-width)))
(pnm (process-name process))
(bnm (mew-local-get-bnm pnm))
(first (mew-local-get-first pnm))
(draftp (mew-folder-draftp bnm))
(directive (mew-local-get-directive pnm))
(case (mew-local-get-case pnm))
vec rttl mark)
(mew-local-debug "FILTER" string)
(mew-filter
(mew-set-buffer-multibyte nil)
(goto-char (point-max))
(mew-elet (insert string))
(goto-char (point-max))
(forward-line -1)
(when (looking-at "^\\.$")
(mew-dot-delete)
(goto-char (point-min))
(unless first
(when (looking-at "NumOfMsg: \\([0-9]+\\)")
(setq rttl (string-to-number (match-string 1)))
(mew-local-set-rttl pnm rttl)
(forward-line)
(delete-region (point-min) (point)))
(mew-local-set-first pnm t))
(mew-net-status3 bnm (mew-local-get-rttl pnm) (mew-local-get-rcnt pnm))
(mew-local-set-rcnt pnm (1+ (mew-local-get-rcnt pnm)))
(mew-set-buffer-multibyte t)
(setq vec (mew-scan-header draftp))
(if (eq directive 'inc) (setq mark (mew-scan-inbox-action vec case)))
(mew-scan-body vec draftp)
(mew-scan-insert-line bnm vec width nil mark)
(delete-region (point-min) (point-max))
(process-send-string process "\n")))))
(defun mew-local-sentinel (process event)
(let* ((pnm (process-name process))
(bnm (mew-local-get-bnm pnm))
(buf (mew-local-get-buf pnm))
(virtualp (mew-folder-virtualp bnm))
(mdb (mew-local-get-mdb pnm))
(flush (mew-local-get-flush pnm)))
(save-excursion
(mew-local-debug "SENTINEL" event)
(mew-filter
(mew-set-buffer-multibyte t)
(set-buffer bnm)
(mew-summary-mark-recover mdb)
(if (and virtualp (mew-vinfo-get-func))
(funcall (mew-vinfo-get-func)))
(mew-vinfo-set-func nil)
(mew-info-clean-up pnm)
(if virtualp
(progn
(mew-summary-set-count-line)
(mew-virtual-set-cache-time))
(mew-summary-folder-cache-save))
(set-buffer-modified-p nil)
(mew-summary-unlock)
(if (and (mew-folder-imapp bnm)
(not (mew-folder-imap-queuep)))
(if (mew-local-get-rttl pnm)
(message "Type '\\[mew-summary-ls]' to override invalid messages")
;; This folder has been just created.
;; Ideally scan should not be called. But there is no way
;; to avoid the call.
(message ""))
(message "Scanning %s...done" bnm))
(run-hooks 'mew-scan-sentinel-hook)
(when (and mew-auto-flush-queue flush)
(mew-smtp-flush-queue mew-case))
(mew-remove-buffer buf)))))
(defun mew-virtual-set-cache-time ()
(let* ((ctime (current-time))
(cache-time (list (nth 0 ctime) (nth 1 ctime))))
(mew-sinfo-set-cache-time cache-time)))
;;; Code:
(require 'mew)
(provide 'mew-local)
;;; Copyright Notice:
;; Copyright (C) 2001-2015 Mew developing team.
;; All rights reserved.
;; Redistribution and use in source and binary forms, with or without
;; modification, are permitted provided that the following conditions
;; are met:
;;
;; 1. Redistributions of source code must retain the above copyright
;; notice, this list of conditions and the following disclaimer.
;; 2. Redistributions in binary form must reproduce the above copyright
;; notice, this list of conditions and the following disclaimer in the
;; documentation and/or other materials provided with the distribution.
;; 3. Neither the name of the team nor the names of its contributors
;; may be used to endorse or promote products derived from this software
;; without specific prior written permission.
;;
;; THIS SOFTWARE IS PROVIDED BY THE TEAM AND CONTRIBUTORS ``AS IS'' AND
;; ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
;; IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
;; PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE TEAM OR CONTRIBUTORS BE
;; LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
;; CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
;; SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
;; BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
;; WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
;; OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
;; IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
;;; mew-local.el ends here
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