johnny-cli/src/JohnnyFile/index.js

CLI for Johnny Deps

// @flow
import fs from 'fs';
import settings from 'settings';

const
	_fsErrorMessage = 'Required config param is missed or JSON file is corrupted';

export default (johnnyPath: string = settings.DEFAULT_CONFIG_PATH): {
	create: Function,
	get: Function,
	remove: Function,
	set: Function,
} => ({
	create: function(params: {|
		name: string,
		path?: string,
		token: string,
		user: string,
	|}) {
		if(fs.existsSync(johnnyPath))
			throw 'Config file johnny.json exists, use --download option if you want to setup existing dll';

		fs.writeFileSync(
			johnnyPath,

			// Type specfies exact object, no non-relevant params can get into config
			JSON.stringify(params),

			err => {
				if(err)
					throw err;
			}
		);

		return this;
	},

	get: (name?: string) => {
		try {
			const
				jsonContent = JSON.parse(fs.readFileSync(johnnyPath, 'utf8'));

			return name ? jsonContent[name] : jsonContent;
		} catch(error) {
			throw _fsErrorMessage;
		}
	},

	remove: () => fs.unlinkSync(johnnyPath),

	set: function(values: {[string]: mixed}) {
		try {
			fs.writeFileSync(johnnyPath, JSON.stringify({...this.get(), ...values}));
		} catch(error) {
			throw _fsErrorMessage;
		}
	}
});