msbuild 自定义日志输出

using System;
using Microsoft.Build.Utilities;
using Microsoft.Build.Framework;

public class CustomLogger : Logger
{
    private int warnings = 0;
    private int errors = 0;

    public override void Initialize(IEventSource eventSource)
    {
        eventSource.WarningRaised += (s, e) => ++warnings;
        eventSource.ErrorRaised += (s, e) =>
        {
            ++errors;
            string line = String.Format("ERROR {0}({1},{2}): ", e.File, e.LineNumber, e.ColumnNumber);
            Console.WriteLine(line + e.Message);
        };

        eventSource.BuildFinished += (s, e) =>
        {
            Console.WriteLine(errors == 0 ? "Build succeeded." : "Build failed.");
            Console.WriteLine(String.Format("    {0} Warning(s)", warnings));
            Console.WriteLine(String.Format("    {0} Error(s)", errors));
        };
    }
}