+global\Jetpack::get_file_data()

Complexity

Conditions	8
Paths	9

Size

Total Lines	37
Code Lines	18

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

<?php
	public static function get_file_data( $file, $headers ) {
		//Get just the filename from $file (i.e. exclude full path) so that a consistent hash is generated
		$file_name = basename( $file );
		$file_data_option = Jetpack_Options::get_option( 'file_data', array() );
		$key              = md5( $file_name . serialize( $headers ) );
		$refresh_cache    = is_admin() && isset( $_GET['page'] ) && 'jetpack' === substr( $_GET['page'], 0, 7 );

		// If we don't need to refresh the cache, and already have the value, short-circuit!
		if ( ! $refresh_cache && isset( $file_data_option[ JETPACK__VERSION ][ $key ] ) ) {
			return $file_data_option[ JETPACK__VERSION ][ $key ];
		}

		$data = get_file_data( $file, $headers );

		// Strip out any old Jetpack versions that are cluttering the option.
		//
		// We maintain the data for the current version of Jetpack plus the previous version
		// to prevent repeated DB hits on large sites hosted with multiple web servers
		// on a single database (since all web servers might not be updated simultaneously)
		
		$file_data_option[ JETPACK__VERSION ][ $key ] = $data;
		
		if( count( $file_data_option ) > 2 ) {
			$count = 0;
			krsort( $file_data_option );
			foreach ( $file_data_option as $version => $values ) {
				$count++;
				if( $count > 2 ) {
					unset( $file_data_option[ $version ] );
				}
			}
		}
		
		Jetpack_Options::update_option( 'file_data', $file_data_option );

		return $data;
	}