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;;; gh-cache.el --- caching for gh.el
;; Copyright (C) 2011 Yann Hodique
;; Author: Yann Hodique <yann.hodique@gmail.com>
;; Keywords:
;; 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 2, or (at your option)
;; any later version.
;; This file 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., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Commentary:
;;
;;; Code:
(eval-when-compile
(require 'cl))
;;;###autoload
(require 'eieio)
(require 'pcache)
(defclass gh-cache (pcache-repository)
((entries :initarg :entries :initform (make-hash-table :test 'equal))
(safe-methods :allocation :class :initform ("HEAD" "GET" "OPTIONS" "TRACE"))
(invalidation-chain :allocation :class :initform nil)))
(defmethod pcache-invalidate :after ((cache gh-cache) key)
(let ((resource (car key)))
(pcache-map cache #'(lambda (k v)
(when (equal (car k) resource)
(pcache-invalidate cache k))))
(dolist (next (oref cache invalidation-chain))
(let ((nextresource
(replace-regexp-in-string (car next) (cdr next) resource)))
(when (not (equal nextresource resource))
(pcache-map cache #'(lambda (k v)
(when (equal (car k) nextresource)
(pcache-invalidate cache k)))))))))
(provide 'gh-cache)
;;; gh-cache.el ends here
;; Local Variables:
;; indent-tabs-mode: nil
;; End: