Initial setup for plugin's native CLI commands

Includes basics of a purge command

includes/class-main.php

@@ -22,6 +22,7 @@ class Main extends Singleton {
 		require __DIR__ . '/class-internal-events.php';
 		require __DIR__ . '/class-rest-api.php';
 		require __DIR__ . '/functions.php';
+		require __DIR__ . '/wp-cli.php';
 
 		// Block normal cron execution
 		$this->set_constants();

includes/wp-cli.php

+<?php
+
+namespace Automattic\WP\Cron_Control;
+
+if ( defined( '\WP_CLI' ) && \WP_CLI ) {
+	require __DIR__ . '/wp-cli/class-one-time-fixers.php';
+}

includes/wp-cli/class-one-time-fixers.php

+<?php
+
+namespace Automattic\WP\Cron_Control\CLI;
+
+class One_Time_Fixers extends \WPCOM_VIP_CLI_Command {
+
+	/**
+	 * Remove corrupt Cron Control data resulting from initial plugin deployment
+	 *
+	 * eg.: `wp --allow-root cron-control remove-all-plugin-data`
+	 *
+	 * @subcommand remove-all-plugin-data
+	 */
+	public function purge( $args, $assoc_args ) {
+		\WP_CLI::line( 'CRON CONTROL' );
+		\WP_CLI::line( "This process will remove all CPT data for the Cron Control plugin\n" );
+
+		global $wpdb;
+
+		$items = $wpdb->get_results( $wpdb->prepare( "SELECT ID, post_title FROM {$wpdb->posts} WHERE post_type = %s LIMIT 250;", 'a8c_cron_ctrl_event' ) );
+
+		if ( is_array( $items ) && ! empty( $items ) ) {
+			foreach ( $items as $item ) {
+				\WP_CLI::line( "{$item->ID}, `{$item->post_title}`" );
+
+				if ( isset( $assoc_args['dry-run'] ) && 'false' === $assoc_args['dry-run'] ) {
+					\WP_CLI::line( 'Removing...' );
+					wp_delete_post( $item->ID, true );
+					\WP_CLI::line( '' );
+				}
+			}
+		}
+
+		if ( isset( $assoc_args['dry-run'] ) && 'false' === $assoc_args['dry-run'] ) {
+			wp_cache_delete( 'a8c_cron_ctrl_option' );
+			\WP_CLI::line( "Cleared Cron Control cache\n" );
+		}
+
+		\WP_CLI::line( "\nAll done" );
+	}
+}
+
+\WP_CLI::add_command( 'cron-control', 'Automattic\WP\Cron_Control\CLI\One_Time_Fixers' );