nlts/bin/nlts.js

CommandLine Tool for Node LTS

#!/usr/bin/env node
const pkg = require('../package.json');
const query = require('..').query;
const show = require('..').show;
const { program } = require('commander');

/**
 * 帮助信息
 * @param {*} code 退出flag
 */
function printHelp(code) {
    const helps = `

    Usage:
        nlts [number]

    Options: 
        -v, --version       print the version of current
        -h, --help          display this message

    Examples:
        $ nlts 8
    `
    console.log(helps);
    process.exit(code || 0);
}

function printVersion() {
    console.log('nlts ' + pkg.version);
    process.exit();
}

function printResult(v, useLocal) {
    query(v, useLocal).then(list => {
        const results = show(list);
        console.log(results);
        process.exit();
    })
}


program
    .version(pkg.version)
    .arguments('<version>')
    .option('-l, --local', 'use local data or network data' )
    .action(function (version) {
        printResult(version, program.local);
    })
program.on('--help', () => {
    console.log('');
    console.log('Example call:');
    console.log('  $ nlts 8      获取版本v8.0.0以上的LTS信息，数据源为网路数据');
    console.log('  $ nlts 8 -l   获取版本v8.0.0以上的LTS信息，数据源为本地模拟数据');
});

program.parse(process.argv);