Get started on CLI

src/cli/create/drivers.ts

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+export const drivers = {
+	sqlite3: 'SQLite',
+	mysql: 'MySQL (/ MariaDB / Aurora)',
+	pg: 'PostgreSQL (/ Amazon Redshift)',
+	oracledb: 'Oracle Database',
+	mssql: 'Microsoft SQL Server',
+};
+
+export function getDriverForClient(client: string) {
+	for (const [key, value] of Object.entries(drivers)) {
+		if (value === client) return key;
+	}
+}

src/cli/create/index.ts

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+import fse from 'fs-extra';
+import chalk from 'chalk';
+import inquirer from 'inquirer';
+import { resolve } from 'path';
+import { databaseQuestions } from './questions';
+import { drivers, getDriverForClient } from './drivers';
+
+export default async function create(directory: string, options: Record<string, any>) {
+	const path = resolve(directory);
+	checkRequirements();
+
+	if (await fse.pathExists(path)) {
+		const stat = await fse.stat(path);
+
+		if (stat.isDirectory() === false) {
+			console.error(
+				`Destination '${chalk.red(directory)}' already exists and is not a directory.`
+			);
+			process.exit(1);
+		}
+
+		const files = await fse.readdir(path);
+
+		if (files.length > 0) {
+			console.error(
+				`Destination '${chalk.red(
+					directory
+				)}' already exists and is not an empty directory.`
+			);
+			process.exit(1);
+		}
+	}
+
+	let { client } = await inquirer.prompt([
+		{
+			type: 'list',
+			name: 'client',
+			message: 'Choose your database client',
+			choices: Object.values(drivers),
+		},
+	]);
+
+	client = getDriverForClient(client);
+
+	const responses = await inquirer.prompt(
+		databaseQuestions[client].map((question) => question({ client }))
+	);
+
+	/** @todo
+	 * - See if you can connect to DB
+	 * - Install Directus system stuff into DB
+	 * - Start the Node API
+	 */
+}
+
+function checkRequirements() {
+	const nodeVersion = process.versions.node;
+	const major = +nodeVersion.split('.')[0];
+
+	if (major < 12) {
+		console.error(`You are running Node ${nodeVersion}.`);
+		console.error('Directus requires Node 12 and up.');
+		console.error('Please update your Node version and try again.');
+		process.exit(1);
+	}
+}

src/cli/create/questions.ts

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+const filename = () => ({
+	type: 'input',
+	name: 'filename',
+	message: 'Filename:',
+	default: './data.db',
+});
+
+const host = () => ({
+	type: 'input',
+	name: 'host',
+	message: 'Host:',
+	default: '127.0.0.1',
+});
+
+const port = ({ client }) => ({
+	type: 'input',
+	name: 'port',
+	message: 'Port:',
+	default() {
+		const ports = {
+			pg: 5432,
+			mysql: 3306,
+			oracledb: 1521,
+			mssql: 1433,
+		};
+
+		return ports[client];
+	},
+});
+
+const username = () => ({
+	type: 'input',
+	name: 'username',
+	message: 'Username:',
+});
+
+const password = () => ({
+	type: 'password',
+	name: 'password',
+	message: 'Password:',
+	mask: '*',
+});
+
+export const databaseQuestions = {
+	sqlite3: [filename],
+	mysql: [host, port, username, password],
+	pg: [host, port, username, password],
+	oracledb: [host, port, username, password],
+	mssql: [host, port, username, password],
+};

src/cli/index.ts

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+#!/usr/bin/env node
+
+import program from 'commander';
+
+const pkg = require('../../package.json');
+
+import start from './start';
+import create from './create';
+
+program.version(pkg.version, '-v, --version');
+
+program.name('directus').usage('[command] [options]');
+
+program.command('create <directory>').description('Create a new Directus Project').action(create);
+
+program.command('start').description('Start the Directus API').action(start);
+
+program.parseAsync(process.argv);

src/cli/start.ts

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+import app from '../app';
+import logger from '../logger';
+import getPort from 'get-port';
+import clear from 'clear';
+
+export default async function start() {
+	clear();
+
+	const port = process.env.PORT || (await getPort({ port: 3000 }));
+
+	app.listen(port, () => {
+		logger.info(`Server started at port ${port}`);
+	});
+}