edp-webserver/cli/webserver.js

/**
 * @file 开发时web调试服务器启动入口
 * @author otakustay[otakustay@live.com],
 *         errorrik[errorrik@gmail.com],
 *         ostream[ostream.song@gmail.com],
 *         firede[firede@firede.us]
 */


/**
 * 默认配置文件名
 *
 * @const
 * @type {string}
 */
var DEFAULT_CONF_FILE = 'edp-webserver-config.js';

/**
 * 加载配置文件
 *
 * @inner
 * @param {string=} confFile 配置文件路径
 * @return {Object}
 */
function loadConf(confFile) {
    var fs = require('fs');
    var path = require('path');
    var cwd = process.cwd();

    if (confFile) {
        confFile = path.resolve(cwd, confFile);
        if (fs.existsSync(confFile)) {
            return require(confFile);
        }

        return null;
    }

    var dir;
    var parentDir = cwd;
    do {
        dir = parentDir;
        confFile = path.resolve(dir, DEFAULT_CONF_FILE);
        if (fs.existsSync(confFile)) {
            return require(confFile);
        }

        parentDir = path.resolve(dir, '..');
    } while (parentDir != dir);

    return require('../index').getDefaultConfig();
}

/**
 * 命令行配置项
 *
 * @inner
 * @type {Object}
 */
var cli = {};

/**
 * 命令描述信息
 *
 * @type {string}
 */
cli.description = '启动EDP WebServer';

/**
 * 命令选项信息
 *
 * @type {Array}
 */
cli.options = [
    'proxy:',
    'port:',
    'config:',
    'document-root:'
];

/**
 * 模块命令行运行入口
 */
cli.main = function (args, opts) {
    var proxy = opts.proxy;
    var port = opts.port;
    var docRoot = opts['document-root'];
    var conf = opts.config;

    var path = require('path');
    var fs = require('fs');
    conf = loadConf(conf);

    if (!conf) {
        console.log('Cannot load server config.');
        return;
    }

    if (docRoot) {
        conf.documentRoot = path.resolve(process.cwd(), docRoot);
    }

    if (port) {
        conf.port = port;
    }

    if (proxy) {
        var proxyFile = path.resolve(process.cwd(), proxy);
        if (fs.existsSync(proxyFile)) {
            var content = fs.readFileSync(proxyFile, 'utf8');
            conf.proxyMap = JSON.parse(content);
        }
    }

    var start = require('../lib/start');

    if (typeof conf.init === 'function') {
        conf.init(conf, function(config){
            start(config || conf);
        });
    }
    else {
        start(conf);
    }
};

/**
 * 命令行配置项
 *
 * @type {Object}
 */
exports.cli = cli;