jmcreater/lib/util/index.js

udc前端开发构建工具

'use strict';
var fs = require('fs');
var path = require('path');
var chalk = require('chalk');


var Util = {
    homedir: function () {
        var env = process.env;
        var home = env.HOME;
        var user = env.LOGNAME || env.USER || env.LNAME || env.USERNAME;

        if (process.platform === 'win32') {
            return env.USERPROFILE || env.HOMEDRIVE + env.HOMEPATH || home || null;
        }

        if (process.platform === 'darwin') {
            return home || (user ? '/Users/' + user : null);
        }

        if (process.platform === 'linux') {
            return home || (process.getuid() === 0 ? '/root' : (user ? '/home/' + user : null));
        }

        return home || null;
    },
    getNowDate: function () {
        var nowDate = new Date();
        var now = nowDate.getFullYear() + '-' + (nowDate.getMonth() + 1) + '-' + nowDate.getDate() + ' ' + nowDate.getHours() + ':' + nowDate.getMinutes() + ':' + nowDate.getMinutes();
        return now;
    },
    //判断文件是否存在
    existsSync(filePath){
        try {
            var stats = fs.statSync(filePath);
            return (stats.isFile() || stats.isDirectory());
        } catch (err) {
            return false;
        }
    },
    setConfig: function (config) {
        var jmPath = this.getJmPath();
        if (typeof config === 'object') {
            fs.writeFileSync(path.join(jmPath, 'config.json'), JSON.stringify(config, null, 2));
        }
    },
    getPkgInfo: function () {
        var info = {};
        try {
            info = JSON.parse(String(fs.readFileSync(path.join(this.getRootPath(), 'package.json'))));
        } catch (e) {
            console.log('读取package.json出错');
        }
        return info;
    },
    //读取jm缓存目录
    getJmPath: function () {
        var jmPath = path.join(this.homedir(), '.jm');
        if (!this.existsSync(jmPath)) {
            fs.mkdirSync(jmPath);
        }
        return jmPath;
    },
    //缓存的模板存放路径
    getTmpPath: function () {
        var tmpPath = path.join(this.getJmPath(), 'tmp');
        if (!fs.existsSync(tmpPath)) {
            fs.mkdirSync(tmpPath);
        }
        return tmpPath
    },
    //读取jm npm包安装路径
    getRootPath: function () {
        return path.join(__dirname, "../../")
    },
    //读取基础配置文件
    getDefaultConfig(){
        var configPath = path.join(this.getJmPath(), 'config.json');
        var config = {};
        if (this.existsSync(configPath)) {
            try {
                config = JSON.parse(String(fs.readFileSync(configPath)));
            } catch (e) {
                config = {};
            }
            return config;
        } else {
            return null;
        }
    },
    //读取用户自定义的配置文件
    getUserConfig: function () {
        var configPath = path.join(process.cwd(), 'config.json');
        var config = {};
        try {
            config = JSON.parse(fs.readFileSync(configPath));
        } catch (e) {
            console.log(chalk.red(e))
        }
        return config;
    }
}

module.exports = Util;