@sun-fe-cli/sun/lib/cli.js

core of the sun-fe-cli

const yargs = require('yargs/yargs');
const { globalOptions } = require('./globalOptions');

module.exports = sunCLI;

function sunCLI(argv, cwd) {
    const cli = yargs(argv, cwd);


    return globalOptions(cli)
        .demandCommand(1, '至少需要一个命令名称，请通过--help查看帮助使用方法')
        .recommendCommands()
        .strict()
        .fail((msg, err) => {
            // certain yargs validations throw strings :P
            const actual = err || new Error(msg);

            // ValidationErrors are already logged, as are package errors
            if (actual.name !== "ValidationError" && !actual.pkg) {
                // the recommendCommands() message is too terse
                if (/Did you mean/.test(actual.message)) {
                    console.log("sun", `Unknown command "${cli.parsed.argv._[0]}"`);
                }

                console.log("sun", actual.message);
            }

            // exit non-zero so the CLI can be usefully chained
            cli.exit(actual.exitCode > 0 ? actual.exitCode : 1, actual);
        })
        .usage('Usage: $0 <command> [options]')
        .alias('h', 'help')
        .alias('v', 'version')
}