Umbraco-CMS/src/JsonSchema/Program.cs

using System;
using System.IO;
using System.Threading.Tasks;
using CommandLine;

namespace JsonSchema
{
    class Program
    {
        private class Options
        {
            [Option('o', "outputFile", Required = false, HelpText = "Set path of the output file.", Default = "../Umbraco.Web.UI.NetCore/umbraco/config/appsettings-schema.json")]
            public string OutputFile { get; set; }

            [Option('d', "definitionPrefix", Required = false, HelpText = "Set prefix used for all definisions.", Default = "umbraco")]
            public string DefinitionPrefix { get; set; }
        }

        public static async Task Main(string[] args)
        {
            try
            {
                await Parser.Default.ParseArguments<Options>(args)
                    .WithParsedAsync(Execute);
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
                throw;
            }

        }

        private static async Task Execute(Options options)
        {
            var generator = new UmbracoJsonSchemaGenerator(options.DefinitionPrefix);
            var schema = await generator.Generate();

            var path = Path.GetFullPath(Path.Combine(Environment.CurrentDirectory, options.OutputFile));
            await File.WriteAllTextAsync(path, schema);

            Console.WriteLine("File written at " + Path.GetFullPath(path));
        }
    }
}