Create your own self-hosted WordPress Plugin repository for pushing automatic updates.
For integration with Composer, please use wp-autoupdate
- Place the
wp_autoupdate.phpfile somewhere in your plugin directory and require it.
require_once( 'wp_autoupdate.php' );- Hook the init function to initiatilize the update function when your plugin loads. Best put in your main
plugin.phpfile:
function snb_activate_au()
{
// set auto-update params
$plugin_current_version = '<your current version> e.g. "0.6"';
$plugin_remote_path = '<remote path to your update server> e.g. http://update.example.com';
$plugin_slug = plugin_basename(__FILE__);
$license_user = '<optional license username>';
$license_key = '<optional license key>';
// only perform Auto-Update call if a license_user and license_key is given
if ( $license_user && $license_key && $plugin_remote_path )
{
new wp_autoupdate ($plugin_current_version, $plugin_remote_path, $plugin_slug, $license_user, $license_key);
}
}
add_action('init', 'snb_activate_au');The license_user and license_key fields are optional. You can use these to implement an auto-update functionility for specified customers only. It's left to the developer to implement this if needed.
Note that it's possible to store certain settings as a Wordpress option like the plugin_remote_path version.
If you do so, you can use get_option() to get fields like plugin_remote_path, license_user, license_key directly from your plugin. This increases maintainability.
- Create your server back-end to handle the update requests. You are fee to implement this any way you want, with any framework you want. The idea is that when Wordpress loads your plugin, it will check the given remote path to see if an update is availabe through the returned transient. For a basic implementation see the example below.
Note however this example does not provide any protection or security, it serves as a demonstration purpose only.
if (isset($_POST['action'])) {
switch ($_POST['action']) {
case 'version':
echo '1.1';
break;
case 'info':
$obj = new stdClass();
$obj->slug = 'plugin.php';
$obj->plugin_name = 'plugin.php';
$obj->new_version = '1.1';
$obj->requires = '3.0';
$obj->tested = '3.3.1';
$obj->downloaded = 12540;
$obj->last_updated = '2012-01-12';
$obj->sections = array(
'description' => 'The new version of the Auto-Update plugin',
'another_section' => 'This is another section',
'changelog' => 'Some new features'
);
$obj->download_link = 'http://localhost/repository/update.zip';
echo serialize($obj);
case 'license':
echo 'false';
break;
}
} else {
header('Cache-Control: public');
header('Content-Description: File Transfer');
header('Content-Type: application/zip');
readfile('update.zip');
}- Make sure the
download_linkpoints to a*.zipfile that holds the new version of your plugin. This*.zipfile must have the same name as your WordPress plugin does. Also the*.zipfile must NOT contain the plugin files directly, but must have a subfolder with the same name as your plugin to make WordPress play nicely with it. e.g.:
my-plugin.zip
│
└ my-plugin
│
├ my-plugin.php
├ README.txt
├ uninstall.php
├ index.php
├ ..
└ etc.You could find detailed explanation and example of usage here
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