错误的javascript写法

wrong-javascript-code-style.js

var fs = require('fs-extra');
var GitHubAPI = require('github');

console.log('Request archive link for er');
var github = new GitHubAPI({ version: '3.0.0' });
github.repos.getArchiveLink(
    {
        user: 'ecomfe',
        repo: 'er',
        archive_format: 'zipball',
        ref: '3.1.0-dev'
    },
    function (err, data) {
        var url = require('url').parse(data.meta.location);
        console.log('Request zip file at "' + url.href + '"');
        var request = require('https').get(
            {
                hostname: url.hostname,
                path: url.path,
                headers: {
                    'Accept': '*/*',
                    'User-Agent': 'Document Generator'
                }
            },
            function (response) {
                console.log('Received from github with status code ' + response.statusCode);
                var unzip = require('unzip').Extract({ path: 'output' });
                response.pipe(unzip);
                unzip.on(
                    'close',
                    function () {
                        console.log('Start generate documents with jsduck');
                        var dir = fs.readdirSync('output')[0];
                        console.log(process.cwd());
                        var jsduck = require('child_process').spawn(
                            'jsduck',
                            ['--config=jsduck/config.json'],
                            {
                                cwd: require('path').join('output', dir),
                                stdio: 'inherit'
                            }
                        );
                        jsduck.on(
                            'close',
                            function (code) {
                                console.log('Remove old documents');
                                fs.remove(
                                    'doc',
                                    function () {
                                        console.log('Copy document to destination folder');
                                        fs.copy(
                                            require('path').join('output', dir, 'doc', 'api'),
                                            'doc',
                                            function () {
                                                console.log('Remove output folder');
                                                fs.remove(
                                                    'output',
                                                    function () {
                                                        console.log('Document generated at "doc"');
                                                    }
                                                );
                                            }
                                        );
                                    }
                                );
                            }
                        );
                    }
                );
            }
        );
    }
);