Add Must-Use loader file.

mu/aspireupdate-mu-loader.php

@@ -0,0 +1,129 @@
+<?php
+/**
+ * MU Loader
+ *
+ * @author   Andy Fragen, Colin Stewart
+ * @license  MIT
+ * @package mu-plugins
+ */
+
+/**
+ * Plugin Name:       AspireUpdate MU Loader
+ * Plugin URI:        https://gist.github.com/afragen/9117fd930d9be16be8a5f450b809dfa8
+ * Description:       Loads AspireUpdate as a Must-Use plugin. Disables normal plugin activation and deletion.
+ * Version:           0.6.0
+ * Author:            WordPress Upgrade/Install Team
+ * License:           MIT
+ * Text Domain:       mu-loader
+ * GitHub Plugin URI: https://gist.github.com/afragen/9117fd930d9be16be8a5f450b809dfa8
+ * Requires PHP:      7.4
+ * Requires WP:       5.9
+ */
+
+namespace AspireUpdate;
+
+// If this file is called directly, abort.
+if ( ! defined( 'WPINC' ) ) {
+	die;
+}
+
+/**
+ * Class MU_Loader
+ */
+class MU_Loader {
+	/**
+	 * Holds array of plugin files.
+	 *
+	 * Add filepath to array, 'my-plugin/my-plugin.php'.
+	 *
+	 * @var array
+	 */
+	private static $plugin_files = array( 'AspireUpdate/aspire-update.php' );
+
+	/**
+	 * Let's get going.
+	 * Load the plugin and hooks.
+	 *
+	 * @return void
+	 */
+	public function run() {
+		foreach ( static::$plugin_files as $plugin_file ) {
+			$plugin_filepath = trailingslashit( WP_PLUGIN_DIR ) . $plugin_file;
+			if ( file_exists( $plugin_filepath ) ) {
+				require $plugin_filepath;
+				$this->load_hooks( $plugin_file );
+			}
+		}
+		add_filter( 'option_active_plugins', array( $this, 'set_as_active' ) );
+	}
+
+	/**
+	 * Load action and filter hooks.
+	 *
+	 * Remove links and disable checkbox from Plugins page so user can't delete main plugin.
+	 * Ensure plugin shows as active.
+	 *
+	 * @param string $plugin_file Plugin file.
+	 * @return void
+	 */
+	public function load_hooks( $plugin_file ) {
+		add_filter( 'network_admin_plugin_action_links_' . $plugin_file, array( $this, 'mu_plugin_active' ) );
+		add_filter( 'plugin_action_links_' . $plugin_file, array( $this, 'mu_plugin_active' ) );
+		add_action( 'after_plugin_row_' . $plugin_file, array( $this, 'after_plugin_row_updates' ) );
+		add_action( 'after_plugin_row_meta', array( $this, 'display_as_mu_plugin' ), 10, 1 );
+	}
+
+	/**
+	 * Make plugin row active and disable checkbox.
+	 *
+	 * @param string $plugin_file Plugin file.
+	 * @return void
+	 */
+	public function after_plugin_row_updates( $plugin_file ) {
+		// phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
+		print "<script>jQuery('.inactive[data-plugin=\"{$plugin_file}\"]').attr('class','active');</script>";
+		// phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
+		print "<script>jQuery('.active[data-plugin=\"{$plugin_file}\"] .check-column input').attr( 'disabled','disabled' );</script>";
+	}
+
+	/**
+	 * Add 'Activated as mu-plugin' to plugin row meta.
+	 *
+	 * @param string $plugin_file Plugin file.
+	 * @return void
+	 */
+	public function display_as_mu_plugin( $plugin_file ) {
+		if ( in_array( $plugin_file, (array) static::$plugin_files, true ) ) {
+			printf(
+				'<br><span style="color:#a7aaad;">%s</span>',
+				esc_html__( 'Activated as Must-Use plugin', 'mu-loader' )
+			);
+		}
+	}
+
+	/**
+	 * Unset action links.
+	 *
+	 * @param array $actions Link actions.
+	 * @return array
+	 */
+	public function mu_plugin_active( $actions ) {
+		unset( $actions['activate'], $actions['delete'], $actions['deactivate'] );
+
+		return $actions;
+	}
+
+	/**
+	 * Set mu-plugins as active.
+	 *
+	 * @param array $active_plugins Array of active plugins.
+	 * @return array
+	 */
+	public function set_as_active( $active_plugins ) {
+		$active_plugins = array_merge( $active_plugins, static::$plugin_files );
+
+		return array_unique( $active_plugins );
+	}
+}
+
+( new MU_Loader() )->run();