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+;;; my-magit.el -- Extensions for magit -*- lexical-binding: t -*-
+
+;; Copyright (C) 2023 Free Software Foundation.
+
+;; Author: Yuchen Pei <id@ypei.org>
+;; Package-Requires: ((emacs "28.2"))
+
+;; This file is part of dotfiles.
+
+;; dotfiles is free software: you can redistribute it and/or modify it under
+;; the terms of the GNU Affero General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; dotfiles 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 Affero General
+;; Public License for more details.
+
+;; You should have received a copy of the GNU Affero General Public
+;; License along with dotfiles.  If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; Extensions for magit.
+
+;;; Code:
+
+
+
+(require 'magit)
+(require 'my-project)
+(require 'org)
+
+(defun magit-clone-org-source (arg)
+  (interactive "P")
+  (let* ((url (org-entry-get (point) "Source"))
+         (default-base-dir
+           (alist-get "3p" my-projects-root-dirs nil nil 'string=))
+         (default-name
+           (progn (string-match "^.*/\\(.*?\\)\\(\\.git\\)?$" url)
+                  (match-string 1 url)))
+         (dir (read-file-name
+               (if arg "Clone to: " "Shallow clone to: ")
+               (concat default-base-dir "/")
+               nil nil
+               default-name)))
+    (if arg
+        (magit-clone-regular url dir nil)
+      (magit-clone-shallow url dir nil 1))
+    (org-set-property "Local-source"
+                      (format "<file:%s>" dir))))
+
+(defun my-project-magit-at ()
+  (interactive)
+  (magit-status (my-project-read-project-root)))
+
+(provide 'my-magit)
+;;; my-magit.el ends here