89 lines
3.1 KiB
EmacsLisp
89 lines
3.1 KiB
EmacsLisp
;;; magithub-cache.el --- caching network data -*- lexical-binding: t; -*-
|
|
|
|
;; Copyright (C) 2016 Sean Allred
|
|
|
|
;; Author: Sean Allred <code@seanallred.com>
|
|
;; Keywords: data, tools
|
|
|
|
;; 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 3 of the License, 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. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
;;; Commentary:
|
|
|
|
;;
|
|
|
|
;;; Code:
|
|
|
|
(require 'magithub-core)
|
|
|
|
(defvar magithub-cache--cache ()
|
|
"An alist of hash tables to use as thr cache.
|
|
Entries are of the form (time-entered . value).")
|
|
|
|
(defvar magithub-cache-refresh-seconds-plist
|
|
(list :issues 600 :ci-status 60 t 60)
|
|
"The number of seconds that have to pass for GitHub data to be
|
|
considered outdated.")
|
|
|
|
(defun magithub-cache--get-table (repo)
|
|
(declare (indent defun))
|
|
(let ((table (cdr (assoc repo magithub-cache--cache))))
|
|
(unless table
|
|
(add-to-list 'magithub-cache--cache (cons repo (make-hash-table)))
|
|
(setq table (cdr (assoc repo magithub-cache--cache))))
|
|
table))
|
|
|
|
(defun magithub-cache--table (table cache default)
|
|
"The cached value for CACHE (set to DEFAULT if necessary)."
|
|
(declare (indent defun))
|
|
(let ((cached-value (gethash cache table :no-value)))
|
|
(if (or (eq cached-value :no-value)
|
|
(< (or (plist-get magithub-cache-refresh-seconds-plist cache)
|
|
(plist-get magithub-cache-refresh-seconds-plist t))
|
|
(time-to-seconds (time-since (car cached-value)))))
|
|
(cdr (puthash cache (cons (current-time) (eval default)) table))
|
|
(when magithub-debug-mode
|
|
(message "Using cached value for %S (retrieved %s)"
|
|
cache (format-time-string "%F %T" (car cached-value))))
|
|
(cdr cached-value))))
|
|
|
|
(defun magithub-cache (repo cache default)
|
|
(declare (indent defun))
|
|
(magithub-cache--table (magithub-cache--get-table repo) cache default))
|
|
|
|
(defun magithub-cache-value--table (table cache)
|
|
"The cached value for CACHE."
|
|
(let ((c (gethash cache table :no-value)))
|
|
(unless (eq c :no-value)
|
|
(cdr c))))
|
|
|
|
(defun magithub-cache-value (repo cache)
|
|
"The cached value for CACHE."
|
|
(magithub-cache-value--table (magithub-cache--get-table repo) cache))
|
|
|
|
(defun magithub-cache-clear (repo &optional cache)
|
|
"Clear the cache for CACHE.
|
|
If CACHE is nil, the entire cache is cleared."
|
|
(if cache (remhash cache (magithub-cache--get-table repo))
|
|
(cl-delete repo magithub-cache--cache
|
|
:key #'car :test #'equal)))
|
|
|
|
(defun magithub-refresh ()
|
|
"Refresh all GitHub data."
|
|
(interactive)
|
|
(magithub-cache-clear (magithub-repo-id))
|
|
(magit-refresh))
|
|
|
|
(provide 'magithub-cache)
|
|
;;; magithub-cache.el ends here
|