Updater poc

src/Nyanbyte.DotnetTools.Update/Nyanbyte.DotnetTools.Update.csproj

@@ -5,6 +5,15 @@
     <TargetFramework>net8.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
+    <PackAsTool>true</PackAsTool>
+    <ToolCommandName>update</ToolCommandName>
+    <PackageOutputPath>./nupkg</PackageOutputPath>
+    
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Build" Version="17.8.3" ExcludeAssets="runtime" />
+    <PackageReference Include="Microsoft.Build.Locator" Version="1.6.10" />
+  </ItemGroup>
+
 </Project>

src/Nyanbyte.DotnetTools.Update/Program.cs

@@ -1,2 +1,41 @@
-// See https://aka.ms/new-console-template for more information
-Console.WriteLine("Hello, World!");
+using System.Diagnostics;
+using Microsoft.Build.Evaluation;
+using Microsoft.Build.Locator;
+
+internal class Program
+{
+    private static void Main(string[] args)
+    {
+        string path = args.Length > 0 ? args[0] : Environment.CurrentDirectory;
+        MSBuildLocator.RegisterDefaults();
+        Run(path);
+    }
+
+    private static void Run(string path)
+    {
+        Console.WriteLine(path);
+        var projs = Directory.GetFiles(path, "*.csproj", SearchOption.AllDirectories).ToHashSet();
+
+        HashSet<Task> tasks = [];
+
+        foreach (var projectPath in projs)
+        {
+            Project project = Project.FromFile(projectPath, new());
+            foreach (var pkg in project.GetItems("PackageReference"))
+            {
+                string pkgName = pkg.EvaluatedInclude;
+                string version = pkg.GetMetadataValue("Version");
+
+                Console.WriteLine($"Updating {pkgName} from v{version}...");
+                Task t = Task.Run(async () =>
+                {
+                    var proc = Process.Start("dotnet", $"add {projectPath} package {pkgName}");
+                    await proc.WaitForExitAsync();
+                });
+                tasks.Add(t);
+            }
+        }
+
+        Task.WaitAll(tasks.ToArray(), TimeSpan.FromMinutes(5));
+    }
+}