zombiebox-cli/bin/zb.js

ZombieBox CLI tool

#!/usr/bin/env node

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

var colors = require('colors');
var mkdirp = require('mkdirp');
var findup = require('findup-sync');

var templatesDir = path.join(__dirname, '..', 'templates');


/**
 * @param {string} where File system path
 * @param {string} name Module name
 * @throws {Error} Throws error when no module found in specified location.
 * @return {*}
 */
var requireIn = function(where, name) {
	var dir = where;
	var parts = where.split(path.sep);
	while (parts.length) {
		dir = parts.join(path.sep);
		try {
			return require(path.join(dir, 'node_modules', name));
		} catch (e) { }
		try {
			if (require(path.join(dir, 'package.json')).name === name) {
				return require(dir);
			}
		} catch (e) { }
		parts.pop();
	}
	throw new Error('Cannot find module \'' + name + '\' in \'' + where + '\'');
};


/**
 * TODO fix for Promise and zb args.
 * @param {string} version
 * @param {string} target
 */
var initProject = function(version, target) {
	target = path.resolve(target);
	var templatePath = path.join(templatesDir, version);

	if (!fs.existsSync(templatePath)) {
		throw new Error(('Bad version ' + version).red);
	}

	if (!fs.existsSync(target)) {
		mkdirp.sync(target);
	}

	var template = require(path.join(templatePath, 'template.js'));
	template(target, process.exit.bind(process, 0));
};

var showHelp = function() {
	var bin = process.argv.slice(0, 2).join(' ');
	console.error(bin + ' init[@VERSION] where VERSION on of [' + fs.readdirSync(templatesDir).join(', ') + ']');
};

var runZB = function(args) {
	var zbProjectRoot = '';
	try {
		var packageJson = findup('package.json');
		if (require(packageJson).dependencies.zombiebox) {
			zbProjectRoot = path.dirname(packageJson);
		}
	} catch (e) {}

	if (zbProjectRoot) {
		var ZBApplication = requireIn(zbProjectRoot, 'zombiebox');

		if (!ZBApplication.getCLI) {
			console.error('Update zb to > 0.0.174');
			process.exit(1);
		}

		var customConfig = undefined;
		args.reduce(function(isPrevKeyConfig, value) {
			if (isPrevKeyConfig === true) {
				customConfig = path.resolve(value);
				return false;
			} else if (value === '--custom-config') {
				return true;
			}
			return isPrevKeyConfig;
		}, false);

		var cli = ZBApplication.getCLI(zbProjectRoot, customConfig);
		cli.registerCommand('init', initProject);
		cli.parse(args);
	} else {
		if (args[0] === '--help') {
			showHelp();
		} else {
			console.error('Cannot find ZombieBox project in \'' + process.cwd() + '\'.');
		}
	}
};


var args = process.argv.slice(2);
var parseInit = /^init(@(.+))?$/.exec(args[0] || '');

if (parseInit) {
	initProject(parseInit[2] || 'latest', args[1] || '.');
} else {
	runZB(args);
}