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|
;;; html-move.el --- Move a file in a local file web site.
;;
;; Author: Lennart Borgman (lennart O borgman A gmail O com)
;; Created: Thu Jan 12 08:11:30 2006
(defconst html-move:version "0.31") ;; Version:
;; Last-Updated: Tue Feb 20 23:59:43 2007 (3600 +0100)
;; Keywords:
;; Compatibility:
;;
;; Features that might be required by this library:
;;
;; None
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;;; Commentary:
;;
;;DO NOT USE YET!
;;
;; Functions for moving a file in a local file web site. Moves the
;; file and fixes the local affected links after the move.
;;
;; To use this file you may in your .emacs put
;;
;; (require 'html-move)
;;
;; Call the function `html-move-buffer-file' to move a file.
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;;; Change log:
;;
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;;
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with this program; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;;; Code:
(eval-when-compile (add-to-list 'load-path default-directory load-path))
(eval-when-compile (require 'html-site nil t))
(require 'url-parse)
(defun html-move-make-new-url (old-url from-dir to-dir)
"Make new relative url.
If OLD-URL is an absolute path then return it. Otherwise OLD-URL
is assumed to be relative FROM-DIR. Return a new url relative
TO-DIR that gives the same absolute path."
(if (or (file-name-absolute-p old-url)
(char-equal ?# (string-to-char old-url))
(let ((urlobj (url-generic-parse-url old-url)))
(url-host urlobj)))
(progn
nil)
(let* (
(relative-path (file-relative-name from-dir to-dir))
(new-abs-url (expand-file-name (concat relative-path old-url) to-dir))
(new-url (file-relative-name new-abs-url to-dir)))
new-url)))
(defun html-move-in-dir-tree (file tree)
(let ((rel-path (file-relative-name file tree)))
(or (string= "." rel-path)
(not (string= ".." (substring rel-path 0 2))))))
(defun html-move-buffer-file (to)
"Move current buffer file to another directory and/or name.
Correct the affected relative links in the moved file and the
links to the file moved in the directory tree
`html-site-current-site-dir'."
;;(interactive "GMove to: ")
(interactive
(let* ((use-dialog-box nil)
(name (read-file-name "Move to (directory or file name): "
))
)
(list (expand-file-name name))))
(html-site-current-ensure-site-defined)
(let ((from (buffer-file-name))
(site-directory (html-site-current-site-dir)))
(unless from
(error "No buffer file name, can't move file!"))
(let* ((from-dir (file-name-directory from))
(from-ext (file-name-extension from))
to-dir
to-ext
new-name
new-file
new-buffer
relative-path)
(unless (html-move-in-dir-tree from-dir site-directory)
(error "Buffer file is not in site directory tree"))
(if (file-directory-p to)
(progn
(setq to-dir to)
(setq new-name (file-name-nondirectory from))
)
(setq to-ext (file-name-extension to))
(unless (string= to-ext from-ext)
(if (not to-ext)
(error "Can't find directory %s (or missing extension?)" to)
(error "Move must not change file extension")))
(setq to-dir (file-name-directory to))
(unless (file-directory-p to-dir)
(if (file-exists-p to-dir)
(error "Not a directory: %s" to-dir)
(error "Can't find directory %s" to-dir)))
(setq new-name (file-name-nondirectory to))
)
(unless (html-move-in-dir-tree to-dir site-directory)
(error "Target is not in site directory tree"))
(setq relative-path (file-relative-name to-dir from-dir))
(when (file-name-absolute-p relative-path)
(error "Can't make a relative path from %s to %s" from to))
(setq new-file (expand-file-name new-name to))
(let ((moved-buffer (current-buffer))
(moved-contents (buffer-substring-no-properties
(point-min)
(point-max))))
(when (file-exists-p new-file)
(error "File already exists: %s" new-file))
;; Open in new location
(find-file new-file)
(setq new-buffer (current-buffer))
(erase-buffer)
(insert moved-contents)
(goto-char (point-min))
(while (re-search-forward "\\(?:href\\|src\\)\\s-*=\\s-*\"\\([^\"]*\\)\"" nil t)
(let ((old-url (match-string 1))
(new-url))
(unless (or (> 11 (length old-url))
(string= "javascript:"
(downcase (substring old-url 0 11))))
(setq new-url (html-move-make-new-url old-url from-dir to-dir))
(when new-url
(replace-match new-url t t nil 1)))))
(save-buffer)
(html-move-fix-site-backlinks from to-dir from-dir)
;; Make backup at current location of "from" file
(with-current-buffer moved-buffer
(set-buffer-modified-p t)
(save-buffer))
(kill-buffer moved-buffer)
;; Delete moved
(delete-file from))
(set-buffer new-buffer)
(goto-char (point-min))
(lwarn '(html-move) :warning "Moved to %s" new-file)
)))
(defun html-move-fix-site-backlinks (to-moved-file to-dir from-dir)
"Fix all links back to TO-MOVED-FILE.
This is called by `html-move-buffer-file' to fix all links back
to the moved file. TO-MOVED-FILE is the old location of the
moved file. FROM-DIR is the old directory and TO-DIR the target
directory for the move."
(html-move-fix-all-backlinks to-moved-file (html-site-current-site-dir) to-dir from-dir)
(when (html-move-fix-page-list to-moved-file to-dir from-dir)
(message "Page list for site TOC changed. You need to update TOC.")
(lwarn '(html-move-fix-site-backlinks) :warning "Page list for site TOC changed. You need to update TOC.")
))
(defun html-move-fix-all-backlinks (to-moved-file for-dir to-dir from-dir)
;;(message "for-dir=%s" for-dir);(sit-for 2)
(let ((html-files (directory-files for-dir t ".*\\.html?$"))
(sub-dirs (directory-files-and-attributes for-dir t)))
(dolist (html-file html-files)
(html-move-fix-backlinks to-moved-file html-file to-dir from-dir))
(dolist (sub-entry sub-dirs)
(let* ((sub-dir (car sub-entry))
(sub-name (file-name-nondirectory sub-dir)))
(when (and (eq t (car (cdr sub-entry)))
(not (string= "." sub-name))
(not (string= ".." sub-name)))
(html-move-fix-all-backlinks to-moved-file sub-dir to-dir from-dir))))))
(defun html-move-fix-backlinks (to-moved-file for-file to-dir from-dir)
(when (file-exists-p for-file)
(let ((old-file-buffer (get-file-buffer for-file))
(buffer (find-file-noselect for-file)))
(with-current-buffer buffer
(goto-char (point-min))
(while
(re-search-forward
"\\(?:href\\|src\\)\\s-*=\\s-*\"\\([^#\"]*\\)\\(?:#[^\"]*\\|\\)\""
nil t)
(let* ((old-url (match-string 1))
(old-absolute-url (expand-file-name
old-url
(file-name-directory for-file)))
new-url)
(when (string= old-absolute-url to-moved-file)
(setq new-url (html-move-make-new-url old-url to-dir from-dir))
;;(message "new-backlink=%s" new-url);(sit-for 2)
(replace-match new-url t t nil 1)
)))
(save-buffer)
(unless old-file-buffer
(kill-this-buffer))))))
(defun html-move-fix-page-list (to-moved-file to-dir from-dir)
(let ((for-file (html-site-current-page-list))
some-change)
(when (file-exists-p for-file)
(let ((old-file-buffer (get-file-buffer for-file))
(buffer (find-file-noselect for-file)))
(with-current-buffer buffer
(goto-char (point-min))
(while
(re-search-forward
;;"\\(?:href\\|src\\)\\s-*=\\s-*\"\\([^#\"]*\\)\\(?:#[^\"]*\\|\\)\""
"\\s-+###\\s-+\\([^#]*?\\)\\(?:#[^#]*\\|\\)[:space:]*$"
nil t)
(let* ((old-url (match-string 1))
(old-absolute-url (expand-file-name
old-url
(file-name-directory for-file)))
new-url)
(when (string= old-absolute-url to-moved-file)
(setq new-url (html-move-make-new-url old-url to-dir from-dir))
;;(message "new-backlink=%s" new-url);(sit-for 2)
(replace-match new-url t t nil 1)
(setq some-change t)
)))
(save-buffer)
(unless old-file-buffer
(kill-this-buffer)))))
some-change))
(provide 'html-move)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; html-move.el ends here
|
