nlts/lib/query.js

CommandLine Tool for Node LTS

const axios = require('axios');
const path = require('path');
const fs = require('fs');
const compareVersions = require('compare-versions');
const terminalLink = require('terminal-link');
const color = require('cli-color');
/** 
 *  获取官方所有的lts版本， 并且大于等于指定版本。
*/
const query = async (v, useLocal) => {
    // 去官方获取所有的Node版本
    // 获取nodejs.org内容太慢了，直接拷贝了一份。
    // const result = await axios.get('https://nodejs.org/dist/index.json');
    // const baidu = await axios.get('https://www.baidu.com/');
    // console.log(baidu.data);


    let data;
    if (useLocal) {
        let dataPath = path.join(__dirname, '../data/index.json');
        data = fs.readFileSync(dataPath).toString();
        data = JSON.parse(data);
    } else {
        data  = await axios.get('https://nodejs.org/dist/index.json');
        data = data.data;
        
    }
    // console.log(Object.keys(data),'===')
    

    let cv = v.split('.');
    let cvArray = ['0', '0', '0'];
    let i = 0;
    while (i < cv.length) {
        cvArray[i] = cv[i];
        i++;
    }

    return data.filter(node => {
        const cp = v ? (compareVersions(node.version, 'v' + cvArray.join('.')) >= 0) : true;
        return node.lts && cp;
    }).map(it => {
        const { files, ...rest } = it;
        const link = `https://nodejs.org/dist/${it.version}/docs/api/documentation.html`;
        const doc = color.yellow(terminalLink(`API（${link}）`, link));
        return { ...rest, doc }
    })
}

module.exports = query;