Add site generator command

Author: i-am-chitti

src/Site_Command.php

@@ -487,6 +487,148 @@ public function create( $args, $assoc_args ) {
 		}
 	}
 
+	/**
+	 * Generate some sites.
+	 *
+	 * Creates a specified number of new sites.
+	 *
+	 * ## OPTIONS
+	 *
+	 * [--count=<number>]
+	 * : How many sites to generates?
+	 * ---
+	 * default: 100
+	 * ---
+	 *
+	 * [--email=<email>]
+	 * : Email for admin user. User will be created if none exists. Assignment to super admin if not included.
+	 *
+	 * [--network_id=<network-id>]
+	 * : Network to associate new site with. Defaults to current network (typically 1).
+	 *
+	 * [--private]
+	 * : If set, the new site will be non-public (not indexed)
+	 *
+	 * [--format=<format>]
+	 * : Render output in a particular format.
+	 * ---
+	 * default: progress
+	 * options:
+	 *  - progress
+	 *  - ids
+	 * ---
+	 *
+	 * ## EXAMPLES
+	 *
+	 *    # Generate 10 sites.
+	 *    $ wp site generate --count=10
+	 *    Generating sites  100% [================================================] 0:01 / 0:04
+	 */
+	public function generate( $args, $assoc_args ) {
+		if ( ! is_multisite() ) {
+			WP_CLI::error( 'This is not a multisite installation.' );
+		}
+
+		global $wpdb, $current_site;
+
+		$defaults = [
+			'count'      => 100,
+			'email'      => '',
+			'network_id' => 1,
+		];
+
+		$assoc_args = array_merge( $defaults, $assoc_args );
+
+		// Network.
+		if ( ! empty( $assoc_args['network_id'] ) ) {
+			$network = $this->get_network( $assoc_args['network_id'] );
+			if ( false === $network ) {
+				WP_CLI::error( "Network with id {$assoc_args['network_id']} does not exist." );
+			}
+		} else {
+			$network = $current_site;
+		}
+
+		// Public.
+		$public = ! Utils\get_flag_value( $assoc_args, 'private' );
+
+		// Limit.
+		$limit = $assoc_args['count'];
+
+		// Email.
+		$email = sanitize_email( $assoc_args['email'] );
+		if ( empty( $email ) || ! is_email( $email ) ) {
+			$super_admins = get_super_admins();
+			$email        = '';
+			if ( ! empty( $super_admins ) && is_array( $super_admins ) ) {
+				$super_login = reset( $super_admins );
+				$super_user  = get_user_by( 'login', $super_login );
+				if ( $super_user ) {
+					$email = $super_user->user_email;
+				}
+			}
+		}
+
+		$user_id = email_exists( $email );
+		if ( ! $user_id ) {
+			$password = wp_generate_password( 24, false );
+			$user_id  = wpmu_create_user( 'site-admin', $password, $email );
+
+			if ( false === $user_id ) {
+				WP_CLI::error( "Can't create user." );
+			} else {
+				User_Command::wp_new_user_notification( $user_id, $password );
+			}
+		}
+
+		$is_subdomain_install = is_subdomain_install();
+
+		$format = Utils\get_flag_value( $assoc_args, 'format', 'progress' );
+
+		$notify = false;
+		if ( 'progress' === $format ) {
+			$notify = Utils\make_progress_bar( 'Generating sites', $limit );
+		}
+
+		for ( $index = 1; $index <= $limit; $index++ ) {
+			$base  = 'site' . $index;
+			$title = 'Site ' . $index;
+
+			$new_domain = '';
+			$path       = '';
+
+			if ( $is_subdomain_install ) {
+				$new_domain = $base . '.' . preg_replace( '|^www\.|', '', $network->domain );
+				$path       = $network->path;
+			} else {
+				$new_domain = $network->domain;
+				$path       = $network->path . $base . '/';
+			}
+
+			$wpdb->hide_errors();
+			$title = wp_slash( $title );
+			$id    = wpmu_create_blog( $new_domain, $path, $title, $user_id, [ 'public' => $public ], $network->id );
+			$wpdb->show_errors();
+			if ( ! is_wp_error( $id ) ) {
+				if ( ! is_super_admin( $user_id ) && ! get_user_option( 'primary_blog', $user_id ) ) {
+					update_user_option( $user_id, 'primary_blog', $id, true );
+				}
+			} else {
+				WP_CLI::error( $id->get_error_message() );
+			}
+
+			if ( 'progress' === $format ) {
+				$notify->tick();
+			} else {
+				WP_CLI::line( $id );
+			}
+		}
+
+		if ( 'progress' === $format ) {
+			$notify->finish();
+		}
+	}
+
 	/**
 	 * Gets network data for a given id.
 	 *