A simple plugin to run JetPack locally

We don’t need to modify the wp-config.php file as before with:

define ('JETPACK_DEV_DEBUG', true);

to run JetPack in the development mode.

By using the jetpack_development_mode filter described here, we can construct this simple plugin:

<?php
/**
* Plugin Name: Run JetPack locally
* Plugin URI:  https://github.com/birgire/run-jetpack-locally
* Author:      birgire
* Version:     0.0.3
*/

// Activate the development mode:
add_filter(
'jetpack_development_mode',
'__return_true',
PHP_INT_MAX
);

to make your life easier 😉 and it’s available on GitHub.

This class method of the JetPack class contains the filter:

/**
* Is Jetpack in development (offline) mode?
*/
public static function is_development_mode() {
$development_mode = false;

if ( defined( 'JETPACK_DEV_DEBUG' ) ) {
$development_mode = JETPACK_DEV_DEBUG;
}

elseif ( site_url() && false === strpos( site_url(), '.' ) ) {
$development_mode = true;
}

return apply_filters( 'jetpack_development_mode', $development_mode );
}