baidubce-cli/src/bos/util.js

baidu cloud engine command line tools

/**
 * Copyright (c) 2014 Baidu.com, Inc. All Rights Reserved
 *
 * Licensed 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 util = require('util');

/**
 * @param {number} progress 0-100
 */
exports.displayProgress = function (progress) {
    var maxBarCount = 20;
    var a = Math.min(maxBarCount, Math.floor(progress / 5));
    var b = maxBarCount - a;

    process.stdout.clearLine();
    process.stdout.cursorTo(0);
    process.stdout.write(util.format('[%s%s] %s%%',
        new Array(a + 1).join('='),
        new Array(b + 1).join(' '),
        progress));
};

if (require.main === module) {
    (function () {
        var i = 5;
        setTimeout(function () {
            exports.displayProgress(i);
            if (i < 100) {
                i += 5;
                setTimeout(arguments.callee, 500);
            }
        }, 500);
    })();
}









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