Util function to check if running plugin check command

cli.php

@@ -8,6 +8,7 @@
  * @since n.e.x.t
  */
 
+use WordPress\Plugin_Check\Checker\CLI_Runner;
 use WordPress\Plugin_Check\Plugin_Context;
 use WordPress\Plugin_Check\CLI\Plugin_Check_Command;
 
@@ -44,15 +45,7 @@
 WP_CLI::add_hook(
 	'before_wp_load',
 	function() {
-		if ( empty( $_SERVER['argv'] ) || 3 > count( $_SERVER['argv'] ) ) {
-			return;
-		}
-
-		if (
-			'wp' === substr( $_SERVER['argv'][0], -2 ) &&
-			'plugin' === $_SERVER['argv'][1] &&
-			'check' === $_SERVER['argv'][2]
-		) {
+		if ( CLI_Runner::is_plugin_check() ) {
 			if ( ! file_exists( ABSPATH . 'wp-content/object-cache.php' ) ) {
 				if ( ! copy(  __DIR__ . '/object-cache.copy.php', ABSPATH . 'wp-content/object-cache.php' ) ) {
 					WP_CLI::error( 'Unable to copy object-cache.php file.' );

includes/Checker/AJAX_Runner.php

@@ -31,7 +31,7 @@ class AJAX_Runner extends Abstract_Check_Runner {
 	 *
 	 * @return bool Returns true if is an AJAX request for the plugin check else false.
 	 */
-	public function is_plugin_check() {
+	public static function is_plugin_check() {
 		if ( ! wp_doing_ajax() ) {
 			return false;
 		}

includes/Checker/Abstract_Check_Runner.php

@@ -65,7 +65,7 @@ abstract class Abstract_Check_Runner implements Check_Runner {
 	 *
 	 * @return bool Returns true if the check is for plugin else false.
 	 */
-	abstract public function is_plugin_check();
+	abstract public static function is_plugin_check();
 
 	/**
 	 * Returns the plugin parameter based on the request.

includes/Checker/CLI_Runner.php

@@ -31,7 +31,7 @@ class CLI_Runner extends Abstract_Check_Runner {
 	 *
 	 * @return bool Returns true if is an CLI request for the plugin check else false.
 	 */
-	public function is_plugin_check() {
+	public static function is_plugin_check() {
 		if ( empty( $_SERVER['argv'] ) || 3 > count( $_SERVER['argv'] ) ) {
 			return false;
 		}

includes/Checker/Check_Runner.php

@@ -23,7 +23,7 @@ interface Check_Runner {
 	 *
 	 * @return boolean Returns true if the check is for plugin else false.
 	 */
-	public function is_plugin_check();
+	public static function is_plugin_check();
 
 	/**
 	 * Prepares the environment for running the requested checks.