index.js
function(filenames) {
				var isIn = _.some(filenames, function(line) {
					return file.path.indexOf(line) !== -1;
				});
				if (isIn) {
					self.push(file);
				}
				callback();
			}
function(filenames) {
				var isIn = _.some(filenames, function(line) {
					return file.path.indexOf(line) !== -1;
				});
				if (isIn) {
					self.push(file);
				}
				callback();
			}
function ( filenames ) { var isIn = _ . some ( filenames , function ( line ) { return file . path . indexOf ( line ) !== - 1 ; } ) ; if ( isIn ) { self . push ( file ) ; } callback ( ) ; }
filter file from stream
filter file from stream