dotnet-runtime-commit.cs

dotnet-runtime-commit.cs

using System.Diagnostics;
using System.Text.RegularExpressions;
using System.Xml.Linq;

class Program
{
    static void Main() => Console.WriteLine($"dotnet/runtime commit: {GetDotnetRuntimeCommit()}");

    public static string GetDotnetRuntimeCommit()
    {
        var process = Process.Start(
            new ProcessStartInfo
            {
                FileName = "dotnet",
                Arguments = "--info",
                RedirectStandardOutput = true,
                UseShellExecute = false
            });
        string output = process!.StandardOutput.ReadToEnd();
        process.WaitForExit();
        
        string sdkCommit = Regex.Match(output, @"Commit: +(.\w+)").Groups[1].Value;
        if (string.IsNullOrEmpty(sdkCommit))
            throw new InvalidOperationException("'dotnet --info' returned an unexpected result:\n " + output);

        var doc = XDocument.Load($"https://raw.githubusercontent.com/dotnet/installer/{sdkCommit}/eng/Version.Details.xml");
        string dotnetRuntimeHash = doc.Root?
            .Descendants("Dependency")
            .FirstOrDefault(d => d.Attribute("Name")?.Value == "Microsoft.NETCore.Platforms")?
            .Element("Sha")?.Value ?? "";

        if (string.IsNullOrEmpty(dotnetRuntimeHash))
            throw new InvalidOperationException("dotnet/runtime hash was not found.");
        
        return dotnetRuntimeHash;
    }
}