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+;;; oni-eshell.el --- Extra Eshell commands          -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2015  Tom Willemse
+
+;; Author: Tom Willemse <tom@ryuslash.org>
+;; Keywords:
+
+;; 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:
+
+;; Here are some extra commands for eshell.
+
+;;; Code:
+
+(require 'em-dirs)
+
+;;;###autoload
+(defun eshell/cdp ()
+  "Change the directory all the way up to the project root.
+
+Look for the project root and change the directory to it.  The
+project root is defined as the directory with the `.git'
+directory in it."
+  (let ((project-dir (locate-dominating-file "." ".git")))
+    (if project-dir
+        (eshell/cd project-dir)
+      (error "Can't locate project root"))))
+
+(provide 'oni-eshell)
+;;; oni-eshell.el ends here