WordPress Plugin Boilerplate

The WordPress Plugin Boilerplate serves as a foundation and aims to provide a clear and consistent guide for building your WordPress plugins.

Features

• The Plugin Boilerplate is fully-based on the WordPress Plugin API.
• Uses PHPDoc conventions to document the code.
• Example values are given, so you can see what needs to be changed.
• Uses a strict file organization scheme to make sure the assets are easily maintainable.
• Note that this boilerplate includes a .pot as a starting translation file.
• Notes on managing assets prior to deployment are covered below
• Tools used for translation are below

Contents

The WordPress Plugin Boilerplate includes the following files:

• This README, a ChangeLog, and a gitignore file.
• A subdirectory called plugin-name that represents the core plugin file.

Installation

1. Copy the plugin-name directory into your wp-content/plugins directory
2. Navigate to the Plugins dashboard page
3. Locate the menu item that reads TODO
4. Click on Activate

This will activate the WordPress Plugin Boilerplate. Because the Boilerplate has no real functionality, nothing will be added to WordPress; however, this demonstrates exactly how your plugin should behave while you’re working with the Boilerplate.

Recommended Tools

Localization Tools

The WordPress Plugin Boilerplate uses a variable to store the text domain used when internationalizing strings throughout the Boilerplate. To take advantage of this method,
there are tools that are recommended for providing correct, translatable files:

• Poedit
• makepot
• i18n

Any of the above tools should provide you with the proper tooling to localize the plugin.

GitHub Updater

The WordPress Plugin Boilerplate includes native support for the GitHub Updater which allows you to provide updates to your WordPress plugin from GitHub.
This uses a new tag in the plugin header:

* GitHub Plugin URI: https://github.com/<owner>/<repo>

Here’s how to take advantage of this feature:

1. Install the GitHub Updater
2. Replace <owner> with your username and <repo> with the repository of your plugin
3. Push commits to the master branch
4. Enjoy your plugin being updated in the WordPress dashboard

The current version of the GitHub Updater supports tags/branches – whichever has the highest number. It also supports different branches using the GitHub Branch: header. All that info is in the project
In future versions, there will be steps to specify branches or tags rather than the master branch.

License

The WordPress Plugin Boilerplate is licensed under the GPL v2 or later.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2, as
published by the Free Software Foundation.

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, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

Important Notes

Licensing

The WordPress Plugin Boilerplate is licensed under the GPL v2 or later; however, if you opt to use third-party code that is not compatible with v2, then you may need to switch to using code that is GPL v3 compatible.
For reference, here’s a discussion that covers the Apache 2.0 License used by Bootstrap.

Includes

Note that if you include your own classes, or third-party libraries, there are three locations in which said files may go:

1. plugin-name/includes is where shared functionality should be placed between public and admin
2. plugin-name/admin/includes is where dashboard-specific classes and dependencies should be placed
3. plugin-name/public/includes is where public-specific classes and dependencies should be placed

Assets

The assets directory provides two files that are used to represent plugin header images.
When committing your work to the WordPress Plugin Repository, these files should reside in their own assets directory, not in the root of the plugin. The initial repository will contain three directories:

1. branches
2. tags
3. trunk

You’ll need to add an assets directory into the root of the repository. So the final directory structure should include four directories:

1. assets
2. branches
3. tags
4. trunk

Next, copy the contents of the assets directory that are bundled with the Boilerplate into the root of the repository. This is how the WordPress Plugin Repository will retrieve the plugin header image.
Of course, you’ll want to customize the header images from the place holders that are provided with the Boilerplate.
For more, in-depth information about this, read this post by Otto.
Plugin screenshots can be saved to one of two locations:

1. The old way is to keep them in the root of the plugin directory. This will increase the size of the download of the plugin, but make the images accessible for those who install it. This is deprecated in the WordPress Plugin Boilerplate
2. With the alternative way, you can save the screenshots in the assets directory, as well. The repository will look here for the screenshot files as well; however, they will not be included in the plugin download thus reducing the size of the plugin. As of its latest version, the WordPress Plugin Boilerplate now follows this convention.