nadekobot/src/NadekoBot/Common/OptionsParser.cs

using CommandLine;

namespace NadekoBot.Common;

public static class OptionsParser
{
    public static T ParseFrom<T>(string[] args) where T : INadekoCommandOptions, new()
        => ParseFrom(new T(), args).Item1;

    public static (T, bool) ParseFrom<T>(T options, string[] args) where T : INadekoCommandOptions
    {
        using (var p = new Parser(x =>
               {
                   x.HelpWriter = null;
               }))
        {
            var res = p.ParseArguments<T>(args);
            options = res.MapResult(x => x, x => options);
            options.NormalizeOptions();
            return (options, res.Tag == ParserResultType.Parsed);
        }
    }
}