MSBuild Dupe WriteChecker

Program.cs

// Inspired by https://github.com/dotnet/roslyn/blob/main/src/Tools/BuildBoss/StructuredLoggerCheckerUtil.cs#L33
// Licensed to the .NET Foundation under one or more agreements.

using System;
using Microsoft.Build.Logging.StructuredLogger;

// Invokes the analyzer here:
// https://github.com/KirillOsenkov/MSBuildStructuredLog/blob/master/src/StructuredLogger/Analyzers/DoubleWritesAnalyzer.cs
string _logFilePath = System.IO.Path.GetFullPath(args[0]);
Console.WriteLine($"Running MSBuild binlog checks for '{_logFilePath}'");
try
{
    bool doubleWritesPresent = false;
    var build = Serialization.Read(_logFilePath);
    if (!build.Succeeded)
    {
        Console.Error.WriteLine($"  Error reading binlog at '{_logFilePath}'");
        return 2;
    }

    foreach (var doubleWrite in DoubleWritesAnalyzer.GetDoubleWrites(build))
    {
        doubleWritesPresent = true;
        Console.Error.WriteLine($"  Multiple writes to {doubleWrite.Key}");
        foreach (var source in doubleWrite.Value)
        {
            Console.Error.WriteLine($"    {source}");
        }
        Console.Error.WriteLine();
    }

    if (!doubleWritesPresent)
    {
        Console.WriteLine("  No duplicate writes found.");
        return 0;
    }

    return 1;
}
catch (Exception ex)
{
    Console.Error.WriteLine($"  Error processing binary log file: {ex.Message}");
    return 3;
}