Tools Projects rename

src/dotnet/Program.cs

@@ -0,0 +1,171 @@
+// 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 System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using Microsoft.DotNet.Cli.Utils;
+using Microsoft.Extensions.PlatformAbstractions;
+using NuGet.Frameworks;
+
+namespace Microsoft.DotNet.Cli
+{
+    public class Program
+    {
+        private const string ProductLongName = ".NET Command Line Tools";
+        private const string UsageText = @"Usage: dotnet [common-options] [command] [arguments]
+
+Arguments:
+  [command]     The command to execute
+  [arguments]   Arguments to pass to the command
+
+Common Options (passed before the command):
+  -v|--verbose  Enable verbose output
+  --version     Display .NET CLI Version Info
+
+Common Commands:
+  new           Initialize a basic .NET project
+  restore       Restore dependencies specified in the .NET project
+  build         Builds a .NET project
+  publish       Publishes a .NET project for deployment (including the runtime)
+  run           Compiles and immediately executes a .NET project
+  repl          Launch an interactive session (read, eval, print, loop)
+  pack          Creates a NuGet package";
+        private static readonly string ProductVersion = GetProductVersion();
+
+        private static string GetProductVersion()
+        {
+            var attr = typeof(Program).GetTypeInfo().Assembly.GetCustomAttribute<AssemblyInformationalVersionAttribute>();
+            return attr?.InformationalVersion;
+        }
+
+        public static int Main(string[] args)
+        {
+            DebugHelper.HandleDebugSwitch(ref args);
+
+            try
+            {
+                return ProcessArgs(args);
+            }
+            catch (CommandUnknownException e)
+            {
+                Console.WriteLine(e.Message);
+
+                return 1;
+            }
+            
+        }
+
+        private static int ProcessArgs(string[] args)
+        {
+            // CommandLineApplication is a bit restrictive, so we parse things ourselves here. Individual apps should use CLA.
+
+            var verbose = false;
+            var success = true;
+            var command = string.Empty;
+            var lastArg = 0;
+            for (; lastArg < args.Length; lastArg++)
+            {
+                if (IsArg(args[lastArg], "v", "verbose"))
+                {
+                    verbose = true;
+                }
+                else if(IsArg(args[lastArg], "version"))
+                {
+                    PrintVersionInfo();
+                    return 0;
+                }
+                else if (IsArg(args[lastArg], "h", "help"))
+                {
+                    PrintHelp();
+                    return 0;
+                }
+                else if (args[lastArg].StartsWith("-"))
+                {
+                    Reporter.Error.WriteLine($"Unknown option: {args[lastArg]}");
+                    success = false;
+                }
+                else
+                {
+                    // It's the command, and we're done!
+                    command = args[lastArg];
+                    break;
+                }
+            }
+            if (!success)
+            {
+                PrintHelp();
+                return 1;
+            }
+
+            var appArgs = (lastArg + 1) >= args.Length ? Enumerable.Empty<string>() : args.Skip(lastArg + 1).ToArray();
+
+            if (string.IsNullOrEmpty(command) || command.Equals("help", StringComparison.OrdinalIgnoreCase))
+            {
+                return RunHelpCommand(appArgs);
+            }
+
+            return Command.Create("dotnet-" + command, appArgs, FrameworkConstants.CommonFrameworks.DnxCore50)
+                .EnvironmentVariable(CommandContext.Variables.Verbose, verbose.ToString())
+                .EnvironmentVariable(CommandContext.Variables.AnsiPassThru, bool.TrueString)
+                .ForwardStdErr()
+                .ForwardStdOut()
+                .Execute()
+                .ExitCode;
+        }
+
+        private static int RunHelpCommand(IEnumerable<string> appArgs)
+        {
+            if (appArgs.Any())
+            {
+                return Command.Create("dotnet-" + appArgs.First(), new string[] { "--help" })
+                    .ForwardStdErr()
+                    .ForwardStdOut()
+                    .Execute()
+                    .ExitCode;
+            }
+            else
+            {
+                PrintHelp();
+                return 0;
+            }
+        }
+
+        private static void PrintHelp()
+        {
+            PrintVersionHeader();
+            Reporter.Output.WriteLine(UsageText);
+        }
+
+        private static void PrintVersionHeader()
+        {
+            var versionString = string.IsNullOrEmpty(ProductVersion) ?
+                string.Empty :
+                $" ({ProductVersion})";
+            Reporter.Output.WriteLine(ProductLongName + versionString);
+        }
+
+        private static void PrintVersionInfo()
+        {
+            PrintVersionHeader();
+
+            var runtimeEnvironment = PlatformServices.Default.Runtime;
+            Reporter.Output.WriteLine("Runtime Environment:");
+            Reporter.Output.WriteLine($" OS Name:     {runtimeEnvironment.OperatingSystem}");
+            Reporter.Output.WriteLine($" OS Version:  {runtimeEnvironment.OperatingSystemVersion}");
+            Reporter.Output.WriteLine($" OS Platform: {runtimeEnvironment.OperatingSystemPlatform}");
+            Reporter.Output.WriteLine($" Runtime Id:  {runtimeEnvironment.GetRuntimeIdentifier()}");
+        }
+
+        private static bool IsArg(string candidate, string longName)
+        {
+            return IsArg(candidate, shortName: null, longName: longName);
+        }
+
+        private static bool IsArg(string candidate, string shortName, string longName)
+        {
+            return (shortName != null && candidate.Equals("-" + shortName)) || (longName != null && candidate.Equals("--" + longName));
+        }
+    }
+}