gotta-go-fast/bin/ggf-license.js

Cross-platform shell shortcuts

#!/usr/bin/env node
"use strict";

const path = require("path");
const fs = require("fs");
const query = require("../util/query");
const fsExt = require("../util/fs");
const help = require("../util/help");

help(`
Usage:
	ggf license [license [author]]

Outputs a new license file to ./LICENSE.md.
`);

let data = {
	year: new Date().getFullYear(),
	license: process.argv[3],
	author: process.argv[4]
};

function getLicensePath(name) {
	let file = name.toLowerCase() + ".md";

	return path.resolve(__dirname, "../data/licenses", file);
}

function isLicenseValid(name) {
	let file = getLicensePath(name);

	try {
		let stat = fs.statSync(file);

		return stat.isFile();
	} catch (e) {
		return false;
	}
}

function promptLicense() {
	if (data.license != null) {
		if (isLicenseValid(data.license)) {
			return Promise.resolve(data.license);
		} else {
			console.log(`"${data.license}" is not a recognized license.`);

			data.license = null;
		}
	}

	return query.prompt("license", "MIT")
		.then(r => {
			data.license = r;

			return promptLicense();
		});
};

function isNameValid(name) {
	return name.length > 0;
}

function promptName() {
	if (data.author != null) {
		if (isNameValid(data.author)) {
			return Promise.resolve(data.author);
		} else {
			console.log("Name must include at least one character");

			data.author = null;
		}
	}

	return query.prompt("author")
		.then(r => {
			data.author = r;

			return promptName();
		});
}

promptLicense()
	.then(promptName)
	.then(r => {
		let inPath = getLicensePath(data.license);
		let outPath = path.resolve(process.cwd(), "LICENSE.md");

		return fsExt.dataCopyFile(inPath, outPath, data);
	})
	.catch(e => {
		console.error(e);
	});