BUGFIX: Specify the latest option during the CLI initialization

src/commands/default.js

@@ -44,6 +44,14 @@ module.exports = async (opts: {tags: Array<string>, image: string, arg: string,
 	const url = tags[0];
 	let versionTags = tags;
 
+	['image', 'tags', 'arg'].forEach(key => {
+		const value = opts[key];
+
+		if (!value) {
+			throw new Error('Please specify a --tags option to the CLI.');
+		}
+	});
+
 	if (typeof url === 'string' && isUrl(url)) {
 		const res = await fetch(url);
 		const json = await res.json();

src/index.js

@@ -11,11 +11,12 @@ cli
 	.option('--tags <url | Array<string>>', 'The JSON array to parse or the GitHub API URL which points to a repositories tags.', val => val.split(','))
 	.option('--image <string>', 'The docker image name to use as a base.')
 	.option('--arg <string>', 'The build-arg key which will be used to.')
+	.option('--latest <string>', 'The tag/version to pass into the docker build when building your latest image, defaults to "latest".')
 	.description('Uses/Fetches the given tags, filters out release only tags based on semver and builds/pushes the docker images.')
 	.version(pkg.version)
 	.parse(process.argv);
 
-if (cli.rawArgs.length !== 3) {
+if (!cli.rawArgs.length) {
 	cli.help();
 	process.exit(0);
 }