jgb-cli/lib/utils/checkVersion.js

```shell npm i -g jgb-cli #全局安装 ```

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = require("tslib");
var chalk_1 = require("chalk");
var request = require("request");
var semver = require("semver");
var pkg = require("../../package.json");
var pkgConfig = pkg;
function checkVersion() {
    return tslib_1.__awaiter(this, void 0, void 0, function () {
        return tslib_1.__generator(this, function (_a) {
            /**
             * 检测当前node版本是否符合要求
             */
            if (!semver.satisfies(process.version, pkgConfig.engines.node)) {
                return [2 /*return*/, console.log(chalk_1.default.red('  You must upgrade node to >=' +
                        pkgConfig.engines.node +
                        '.x to use jgb-cli'))];
            }
            return [2 /*return*/, new Promise(function (resolve) {
                    request({
                        url: 'https://registry.npmjs.org/jgb-cli',
                        timeout: 1000
                    }, function (err, res, body) {
                        if (!err && res.statusCode === 200) {
                            var latestVersion = JSON.parse(body)['dist-tags'].latest;
                            var localVersion = pkgConfig.version;
                            if (semver.lt(localVersion, latestVersion)) {
                                console.log(chalk_1.default.yellow('  A newer version of jgb-cli is available.'));
                                console.log();
                                console.log('  latest:    ' + chalk_1.default.green(latestVersion));
                                console.log('  installed: ' + chalk_1.default.red(localVersion));
                                console.log();
                            }
                        }
                        resolve();
                    });
                })];
        });
    });
}
exports.default = checkVersion;
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