super-fs/src/listAll.js

Virtual file system

const _ = require('lodash');


const addPrefix = function(name, options){

    var result = options.prefix ? options.prefix + name : name;

    return result;

};

const listAll = function(path, virtual_fs, config){

    var result = [];
    var options = config || {};
    var shouldFilterByType = ['directories', 'files'].indexOf(options.filter) > -1;
    var directory = path ? _.find(virtual_fs.contents, {name: path}) : virtual_fs;
    var contents = directory && directory.contents ? directory.contents : [];

    contents.forEach(function(element){

        var shouldDisplayFiles = element.type === 'file' && (!shouldFilterByType || options.filter !== 'directories');
        var shouldDisplayDirectories = !shouldFilterByType || options.filter !== 'files';
        var prefixed = addPrefix(element.name, options);

        if(shouldDisplayFiles) {

            result.push(prefixed);

        } else if(element.type === 'directory') {

            var new_config = _.merge({}, options, {prefix: addPrefix(element.name + '/', options)});
            var directory_result = listAll(null, element, new_config);
            var filteredName = shouldDisplayDirectories ? [prefixed] : [];
            var nested_result = directory_result.length ? directory_result : filteredName;

            result = result.concat(nested_result);

        }

    });

    return result;

};

module.exports = listAll;