webcommon/javascript.nodejs/samples_src/ListDirectory/main.js

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

var listdirectory = require('./listdirectory');
var dir = process.argv[2] || getUserHome();
var extension = process.argv[3];

listdirectory(dir, extension, function(err, list) {
    if (err) {
        return console.error('Error occurred:', err);
    }

    console.log('Listing of', dir, ':');
    console.log('===================================');
    list.forEach(function(file) {
        console.log(file);
    });
});

function getUserHome() {
    return process.env.HOME || process.env.HOMEPATH || process.env.USERPROFILE;
}