File: wp-admin/includes/class-wp-debug-data.php. View all references

public static function get_sizes() {
	$size_db    = self::get_database_size();
	$upload_dir = wp_get_upload_dir();

	/*
	 * We will be using the PHP max execution time to prevent the size calculations
	 * from causing a timeout. The default value is 30 seconds, and some
	 * hosts do not allow you to read configuration values.
	 */
	if ( function_exists( 'ini_get' ) ) {
		$max_execution_time = ini_get( 'max_execution_time' );
	}

	/*
	 * The max_execution_time defaults to 0 when PHP runs from cli.
	 * We still want to limit it below.
	 */
	if ( empty( $max_execution_time ) ) {
		$max_execution_time = 30; // 30 seconds.
	}

	if ( $max_execution_time > 20 ) {
		/*
		 * If the max_execution_time is set to lower than 20 seconds, reduce it a bit to prevent
		 * edge-case timeouts that may happen after the size loop has finished running.
		 */
		$max_execution_time -= 2;
	}

	/*
	 * Go through the various installation directories and calculate their sizes.
	 * No trailing slashes.
	 */
	$paths = array(
		'wordpress_size' => untrailingslashit( ABSPATH ),
		'themes_size'    => get_theme_root(),
		'plugins_size'   => WP_PLUGIN_DIR,
		'uploads_size'   => $upload_dir['basedir'],
	);

	$exclude = $paths;
	unset( $exclude['wordpress_size'] );
	$exclude = array_values( $exclude );

	$size_total = 0;
	$all_sizes  = array();

	// Loop over all the directories we want to gather the sizes for.
	foreach ( $paths as $name => $path ) {
		$dir_size = null; // Default to timeout.
		$results  = array(
			'path' => $path,
			'raw'  => 0,
		);

		if ( microtime( true ) - WP_START_TIMESTAMP < $max_execution_time ) {
			if ( 'wordpress_size' === $name ) {
				$dir_size = recurse_dirsize( $path, $exclude, $max_execution_time );
			} else {
				$dir_size = recurse_dirsize( $path, null, $max_execution_time );
			}
		}

		if ( false === $dir_size ) {
			// Error reading.
			$results['size']  = __( 'The size cannot be calculated. The directory is not accessible. Usually caused by invalid permissions.' );
			$results['debug'] = 'not accessible';

			// Stop total size calculation.
			$size_total = null;
		} elseif ( null === $dir_size ) {
			// Timeout.
			$results['size']  = __( 'The directory size calculation has timed out. Usually caused by a very large number of sub-directories and files.' );
			$results['debug'] = 'timeout while calculating size';

			// Stop total size calculation.
			$size_total = null;
		} else {
			if ( null !== $size_total ) {
				$size_total += $dir_size;
			}

			$results['raw']   = $dir_size;
			$results['size']  = size_format( $dir_size, 2 );
			$results['debug'] = $results['size'] . " ({$dir_size} bytes)";
		}

		$all_sizes[ $name ] = $results;
	}

	if ( $size_db > 0 ) {
		$database_size = size_format( $size_db, 2 );

		$all_sizes['database_size'] = array(
			'raw'   => $size_db,
			'size'  => $database_size,
			'debug' => $database_size . " ({$size_db} bytes)",
		);
	} else {
		$all_sizes['database_size'] = array(
			'size'  => __( 'Not available' ),
			'debug' => 'not available',
		);
	}

	if ( null !== $size_total && $size_db > 0 ) {
		$total_size    = $size_total + $size_db;
		$total_size_mb = size_format( $total_size, 2 );

		$all_sizes['total_size'] = array(
			'raw'   => $total_size,
			'size'  => $total_size_mb,
			'debug' => $total_size_mb . " ({$total_size} bytes)",
		);
	} else {
		$all_sizes['total_size'] = array(
			'size'  => __( 'Total size is not available. Some errors were encountered when determining the size of your installation.' ),
			'debug' => 'not available',
		);
	}

	return $all_sizes;
}

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