solution generator for corefx

gistfile1.txt

using System;
using System.IO;
using System.Xml.Linq;
using System.Linq;

namespace ConsoleApp20
{
    class Program
    {
        static void Main()
        {
            string header = @"
Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 16
VisualStudioVersion = 16.0.28416.103
MinimumVisualStudioVersion = 10.0.40219.1";

            string globalSections = @"Global
    GlobalSection(SolutionConfigurationPlatforms) = preSolution
        Debug|Any CPU = Debug|Any CPU
        Release|Any CPU = Release|Any CPU
    EndGlobalSection
    GlobalSection(SolutionProperties) = preSolution
        HideSolutionNode = FALSE
    EndGlobalSection
EndGlobal";

            string csharpProjectTemplate = @"Project(""{{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}}"") = ""{0}"", ""{1}"", ""{2}""
EndProject";

            string rootPath = @"c:\git\corefx\src";
            string solutionName = "AllCoreFX";
            string solutionPath = Path.Combine(rootPath, solutionName + ".sln");
            var projectFiles = Directory.GetFiles(rootPath, "*.csproj", SearchOption.AllDirectories);
            using (var stream = File.OpenWrite(solutionPath))
            using (var writer = new StreamWriter(stream))
            {
                writer.WriteLine(header);
                var xmlns = XNamespace.Get("http://schemas.microsoft.com/developer/msbuild/2003");
                foreach (var projectFile in projectFiles)
                {
                    string name = Path.GetFileNameWithoutExtension(projectFile);
                    string relativePath = projectFile.Substring(rootPath.Length).TrimStart('\\');
                    var doc = XDocument.Load(projectFile);
                    var guidElement = doc.Root.Elements(xmlns + "PropertyGroup")
                                              .Elements(xmlns + "ProjectGuid")
                                              .FirstOrDefault();

                    string guid = guidElement == null ? Guid.NewGuid().ToString("B") : guidElement.Value;

                    string entry = string.Format(csharpProjectTemplate, name, relativePath, guid);
                    writer.WriteLine(entry);
                }
                writer.WriteLine(globalSections);
            }
        }
    }
    }