[oni-project] Add configuration for ‘project’

This adds a magit option to the project switch commands so that I can view the
git status of a project right away.

oni-project.el

@@ -0,0 +1,42 @@
+;;; oni-project.el --- Project configuration settings  -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2023  Tom Willemse
+
+;; Author: Tom Willemse <tom@ryuslash.org>
+;; Keywords: local
+;; Version: 2023.0722.222800
+
+;; 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 <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; Configuration for Emacs' project functionality.
+
+;;; Code:
+
+(require 'project)
+
+(declare-function magit-status-setup-buffer "magit-status.el")
+
+(defun oni-project-magit ()
+  "Start Magit in the current project's root directory."
+  (interactive)
+  (magit-status-setup-buffer (project-root (project-current t))))
+
+(when (locate-library "magit")
+  (define-key project-prefix-map (kbd "m") #'oni-project-magit)
+  (add-to-list 'project-switch-commands '(oni-project-magit "Magit status")))
+
+(provide 'oni-project)
+;;; oni-project.el ends here