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;;; org-mac-iCal.el --- Imports events from iCal.app to the Emacs diary
;; Copyright (C) 2009 Christopher Suckling
;; Author: Christopher Suckling <suckling at gmail dot com>
;; This file 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 3, or (at your option)
;; any later version.
;; It 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 GNU Emacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;; Version: 0.1057.104
;; Keywords: outlines, calendar
;;; Commentary:
;;
;; This file provides the import of events from Mac OS X 10.5 iCal.app
;; into the Emacs diary (it is not compatible with OS X < 10.5). The
;; function org-mac-iCal will import events in all checked iCal.app
;; calendars for the date range org-mac-iCal-range months, centered
;; around the current date.
;;
;; CAVEAT: This function is destructive; it will overwrite the current
;; contents of the Emacs diary.
;;
;; Installation: add (require 'org-mac-iCal) to your .emacs.
;;
;; If you view Emacs diary entries in org-agenda, the following hook
;; will ensure that all-day events are not orphaned below TODO items
;; and that any supplementary fields to events (e.g. Location) are
;; grouped with their parent event
;;
;; (add-hook 'org-agenda-cleanup-fancy-diary-hook
;; (lambda ()
;; (goto-char (point-min))
;; (save-excursion
;; (while (re-search-forward "^[a-z]" nil t)
;; (goto-char (match-beginning 0))
;; (insert "0:00-24:00 ")))
;; (while (re-search-forward "^ [a-z]" nil t)
;; (goto-char (match-beginning 0))
;; (save-excursion
;; (re-search-backward "^[0-9]+:[0-9]+-[0-9]+:[0-9]+ " nil t))
;; (insert (match-string 0)))))
;;; Code:
(defcustom org-mac-iCal-range 2
"The range in months to import iCal.app entries into the Emacs
diary. The import is centered around today's date; thus a value
of 2 imports entries for one month before and one month after
today's date"
:group 'org-time
:type 'integer)
(defun org-mac-iCal ()
"Selects checked calendars in iCal.app and imports them into
the the Emacs diary"
(interactive)
;; kill diary buffers then empty diary files to avoid duplicates
(setq currentBuffer (buffer-name))
(setq openBuffers (mapcar (function buffer-name) (buffer-list)))
(omi-kill-diary-buffer openBuffers)
(with-temp-buffer
(insert-file-contents diary-file)
(delete-region (point-min) (point-max))
(write-region (point-min) (point-max) diary-file))
;; determine available calendars
(setq caldav-folders (directory-files "~/Library/Calendars" 1 ".*caldav$"))
(setq caldav-calendars nil)
(mapc
(lambda (x)
(setq caldav-calendars (nconc caldav-calendars (directory-files x 1 ".*calendar$"))))
caldav-folders)
(setq local-calendars nil)
(setq local-calendars (directory-files "~/Library/Calendars" 1 ".*calendar$"))
(setq all-calendars (append caldav-calendars local-calendars))
;; parse each calendar's Info.plist to see if calendar is checked in iCal
(setq all-calendars (delq 'nil (mapcar
(lambda (x)
(omi-checked x))
all-calendars)))
;; for each calendar, concatenate individual events into a single ics file
(with-temp-buffer
(shell-command "sw_vers" (current-buffer))
(when (re-search-backward "10\\.[56]" nil t)
(omi-concat-leopard-ics all-calendars)))
;; move all caldav ics files to the same place as local ics files
(mapc
(lambda (x)
(mapc
(lambda (y)
(rename-file (concat x "/" y);
(concat "~/Library/Calendars/" y)))
(directory-files x nil ".*ics$")))
caldav-folders)
;; check calendar has contents and import
(setq import-calendars (directory-files "~/Library/Calendars" 1 ".*ics$"))
(mapc
(lambda (x)
(when (/= (nth 7 (file-attributes x 'string)) 0)
(omi-import-ics x)))
import-calendars)
;; tidy up intermediate files and buffers
(setq usedCalendarsBuffers (mapcar (function buffer-name) (buffer-list)))
(omi-kill-ics-buffer usedCalendarsBuffers)
(setq usedCalendarsFiles (directory-files "~/Library/Calendars" 1 ".*ics$"))
(omi-delete-ics-file usedCalendarsFiles)
(switch-to-buffer currentBuffer))
(defun omi-concat-leopard-ics (list)
"Leopard stores each iCal.app event in a separate ics file.
Whilst useful for Spotlight indexing, this is less helpful for
icalendar-import-file. omi-concat-leopard-ics concatenates these
individual event files into a single ics file"
(mapc
(lambda (x)
(setq omi-leopard-events (directory-files (concat x "/Events") 1 ".*ics$"))
(with-temp-buffer
(mapc
(lambda (y)
(insert-file-contents (expand-file-name y)))
omi-leopard-events)
(write-region (point-min) (point-max) (concat (expand-file-name x) ".ics"))))
list))
(defun omi-import-ics (string)
"Imports an ics file into the Emacs diary. First tidies up the
ics file so that it is suitable for import and selects a sensible
date range so that Emacs calendar view doesn't grind to a halt"
(with-temp-buffer
(insert-file-contents string)
(goto-char (point-min))
(while
(re-search-forward "^BEGIN:VCALENDAR$" nil t)
(setq startEntry (match-beginning 0))
(re-search-forward "^END:VCALENDAR$" nil t)
(setq endEntry (match-end 0))
(save-restriction
(narrow-to-region startEntry endEntry)
(goto-char (point-min))
(re-search-forward "\\(^DTSTART;.*:\\)\\([0-9][0-9][0-9][0-9]\\)\\([0-9][0-9]\\)" nil t)
(if (or (eq (match-string 2) nil) (eq (match-string 3) nil))
(progn
(setq yearEntry 0)
(setq monthEntry 0))
(setq yearEntry (string-to-number (match-string 2)))
(setq monthEntry (string-to-number (match-string 3))))
(setq year (string-to-number (format-time-string "%Y")))
(setq month (string-to-number (format-time-string "%m")))
(when (or
(and
(= yearEntry year)
(or (< monthEntry (- month (/ org-mac-iCal-range 2))) (> monthEntry (+ month (/ org-mac-iCal-range 2)))))
(< yearEntry (- year 1))
(> yearEntry (+ year 1))
(and
(= yearEntry (- year 1)) (/= monthEntry 12))
(and
(= yearEntry (+ year 1)) (/= monthEntry 1)))
(delete-region startEntry endEntry))))
(while
(re-search-forward "^END:VEVENT$" nil t)
(delete-blank-lines))
(goto-line 1)
(insert "BEGIN:VCALENDAR\n\n")
(goto-line 2)
(while
(re-search-forward "^BEGIN:VCALENDAR$" nil t)
(replace-match "\n"))
(goto-line 2)
(while
(re-search-forward "^END:VCALENDAR$" nil t)
(replace-match "\n"))
(insert "END:VCALENDAR")
(goto-line 1)
(delete-blank-lines)
(while
(re-search-forward "^END:VEVENT$" nil t)
(delete-blank-lines))
(goto-line 1)
(while
(re-search-forward "^ORG.*" nil t)
(replace-match "\n"))
(goto-line 1)
(write-region (point-min) (point-max) string))
(icalendar-import-file string diary-file))
(defun omi-kill-diary-buffer (list)
(mapc
(lambda (x)
(if (string-match "^diary" x)
(kill-buffer x)))
list))
(defun omi-kill-ics-buffer (list)
(mapc
(lambda (x)
(if (string-match "ics$" x)
(kill-buffer x)))
list))
(defun omi-delete-ics-file (list)
(mapc
(lambda (x)
(delete-file x))
list))
(defun omi-checked (directory)
"Parse Info.plist in iCal.app calendar folder and determine
whether Checked key is 1. If Checked key is not 1, remove
calendar from list of calendars for import"
(let* ((root (xml-parse-file (car (directory-files directory 1 "Info.plist"))))
(plist (car root))
(dict (car (xml-get-children plist 'dict)))
(keys (cdr (xml-node-children dict)))
(keys (mapcar
(lambda (x)
(cond ((listp x)
x)))
keys))
(keys (delq 'nil keys)))
(when (equal "1" (car (cddr (lax-plist-get keys '(key nil "Checked")))))
directory)))
(provide 'org-mac-iCal)
;;; org-mac-iCal.el ends here
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