feat: Add fliegdoc [i|init] to generate a fliegdoc.config.js

Adds the dependency enquirer.

bin/fliegdoc.js

@@ -13,18 +13,26 @@ const {
 const cl = require('colorette');
 
 const yargs = require('yargs');
+const util = require('util');
 const path = require('path');
+const fs = require('fs');
 const { cosmiconfigSync } = require('cosmiconfig');
+const qu = require('enquirer');
 
-const { config, filepath } = cosmiconfigSync('fliegdoc').search();
+const { config, filepath } = cosmiconfigSync('fliegdoc').search() || {
+	config: undefined,
+	filepath: undefined
+};
 
-setConfig(config, path.dirname(filepath));
+if (config) setConfig(config, path.dirname(filepath));
 
 process.on('unhandledRejection', err => {
 	console.error(err);
 	process.exit(1);
 });
 
+const newConfigFilePath = path.join(process.cwd(), 'fliegdoc.config.js');
+
 yargs
 	.scriptName('fliegdoc')
 	.epilog('Get help for individual commands by running $0 <command> --help')
@@ -87,6 +95,138 @@ yargs
 			serveDynamic(tree, args['port']);
 		}
 	)
+	.command(
+		['init', 'i'],
+		'Initialize a fliegdoc configuration',
+		yargs =>
+			yargs.check(() => {
+				if (fs.existsSync(newConfigFilePath))
+					throw new Error(
+						'The config file already exists: ' + newConfigFilePath
+					);
+				return true;
+			}),
+		async () => {
+			const answers = await qu.prompt([
+				{
+					name: 'title',
+					type: 'text',
+					required: true,
+					message: 'Project title'
+				},
+				{
+					name: 'readme',
+					type: 'text',
+					required: true,
+					message: "Path to the project's README.md file",
+					initial: './README.md'
+				},
+				{
+					name: 'outDir',
+					type: 'text',
+					required: true,
+					message: 'Path to which the documentation gets generated',
+					initial: './docs'
+				},
+				{
+					name: 'baseUrl',
+					type: 'text',
+					required: true,
+					message: 'Base URL of the documentation, when hosted on a server',
+					initial: '/'
+				},
+				{
+					name: 'hidePrivateMembers',
+					type: 'confirm',
+					initial: true,
+					message: 'Hide private class members in the documentation?'
+				}
+			]);
+
+			answers['externalLinks'] = {};
+
+			while (
+				await new qu.Confirm({
+					name: 'addExternalLink',
+					type: 'confirm',
+					initial: 'false',
+					message:
+						'Do you want to add another external link to the documentation?'
+				}).run()
+			) {
+				const newExternalLink = await new qu.Form({
+					name: 'newExternalLink',
+					message: 'Please specify the details of the external link',
+					choices: [
+						{
+							name: 'key',
+							message: 'Link Label'
+						},
+						{
+							name: 'value',
+							message: 'Link'
+						}
+					]
+				}).run();
+
+				answers.externalLinks[newExternalLink['key']] =
+					newExternalLink['value'];
+
+				console.log('Link added successfully');
+			}
+
+			answers['modules'] = [];
+
+			do {
+				const newModule = await new qu.Form({
+					name: 'newModule',
+					message: 'Please specify the details of the module',
+					choices: [
+						{
+							name: 'tsconfig',
+							initial: './tsconfig.json',
+							message:
+								'tsconfig.json location, relative to the current working directory'
+						},
+						{
+							name: 'package',
+							initial: './package.json',
+							message:
+								'package.json location, relative to the current working directory'
+						},
+						{
+							name: 'mainFile',
+							initial: 'main.ts',
+							message:
+								"the package's main file, relative to the sources configured in the tsconfig.json"
+						}
+					]
+				}).run();
+
+				answers.modules.push(newModule);
+
+				console.log('Module added successfully');
+			} while (
+				await new qu.Confirm({
+					name: 'addModule',
+					type: 'confirm',
+					initial: 'false',
+					message:
+						'Do you want to add another module? You can add an arbitrary amount of modules!'
+				}).run()
+			);
+
+			answers['baseUrl'] = answers['baseUrl'].endsWith('/')
+				? answers['baseUrl']
+				: answers['baseUrl'] + '/';
+
+			let configString = util.inspect(answers, false, 5, false);
+			console.info(configString);
+			configString =
+				'// Generated using fliegdoc init\nmodule.exports = ' + configString;
+			fs.writeFileSync(newConfigFilePath, configString);
+		}
+	)
 	.help()
 	.demandCommand()
 	.completion()

package.json

@@ -72,6 +72,7 @@
 	"dependencies": {
 		"colorette": "^1.2.1",
 		"cosmiconfig": "^7.0.0",
+		"enquirer": "^2.3.6",
 		"eta": "^1.12.1",
 		"express": "^4.17.1",
 		"markdown-it": "^12.0.4",