dotnet-installer/src/dotnet/commands/dotnet-run/Program.cs

// Copyright (c) .NET Foundation and contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.

using Microsoft.DotNet.Cli.Utils;
using System;
using System.CommandLine;

namespace Microsoft.DotNet.Tools.Run
{
    public partial class RunCommand
    {
        public static int Run(string[] args)
        {
            DebugHelper.HandleDebugSwitch(ref args);

            var help = false;
            string helpText = null;
            var returnCode = 0;

            RunCommand runCmd = new RunCommand();

            try
            {
                ArgumentSyntax.Parse(args, syntax =>
                {
                    syntax.HandleHelp = false;
                    syntax.HandleErrors = false;

                    syntax.DefineOption("f|framework", ref runCmd.Framework, "Compile a specific framework");
                    syntax.DefineOption("c|configuration", ref runCmd.Configuration, "Configuration under which to build");
                    syntax.DefineOption("p|project", ref runCmd.Project, "The path to the project to run (defaults to the current directory). Can be a path to a project.json or a project directory");

                    syntax.DefineOption("h|help", ref help, "Help for compile native.");

                    // TODO: this is not supporting args which can be switches (i.e. --test)
                    // TODO: we need to make a change in System.CommandLine or parse args ourselves.
                    syntax.DefineParameterList("args", ref runCmd.Args, "Arguments to pass to the executable or script");

                    helpText = syntax.GetHelpText();
                });
            }
            catch (ArgumentSyntaxException exception)
            {
                Console.Error.WriteLine(exception.Message);
                help = true;
                returnCode = 1;
            }

            if (help)
            {
                Console.WriteLine(helpText);

                return returnCode;
            }

            try
            {
                return runCmd.Start();
            }
            catch (Exception ex)
            {
#if DEBUG
                Console.Error.WriteLine(ex);
#else
                Console.Error.WriteLine(ex.Message);
#endif
                return 1;
            }
        }
    }
}