<?xml version="1.0" encoding="utf-8"?> <!--*********************************************************************************************************  GitHistory.targets - Gbtc****  Tennessee Valley Authority, 2009**  No copyright is claimed pursuant to 17 USC § 105.  All Other Rights Reserved.****  This software is made freely available under the TVA Open Source Agreement (see below).****  Code Modification History:**  ===================================================================================================**  07/30/2010 - Pinal C. Patel**       Generated original version of source code.**  12/25/2010 - Pinal C. Patel**       Updated to correctly handle error condition.**  08/12/2015 - Stephen C. Wills**       Adapted TfsHistory.targets to GitHistory.targets.*********************************************************************************************************--> <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">   <UsingTask TaskName="GitHistory" TaskFactory="CodeTaskFactory" AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v4.0.dll">    <ParameterGroup>      <GitClient Required="true"/>      <LocalPath Required="true"/>      <VersionTag Required="true"/>      <TotalChanges ParameterType="System.Int32" Output="true"/>    </ParameterGroup>    <Task>      <Code Type="Class" Language="cs">        <![CDATA[        using Microsoft.Build.Framework;        using Microsoft.Build.Utilities;        using System;        using System.Collections.Generic;        using System.Diagnostics;         public class GitHistory : Task        {            private string m_gitClient;            private string m_localPath;            private string m_versionTag;            private int m_totalChanges;            private List<string> m_output;            private string m_errorMessage;             public GitHistory()            {                // Initialize member variables.                m_output = new List<string>();            }             public string GitClient            {                get { return m_gitClient; }                set { m_gitClient = value; }            }             public string LocalPath            {                get { return m_localPath; }                set { m_localPath = value; }            }                      public string VersionTag            {                get { return m_versionTag; }                set { m_versionTag = value; }            }             [Output()]            public int TotalChanges            {                get { return m_totalChanges; }            }             public override bool Execute()            {                try                {                                       // Launch Git Client and wait for it to complete.                    using (Process p = new Process())                    {                        p.StartInfo.FileName = m_gitClient;                        p.StartInfo.Arguments = string.Format(@"log --pretty=oneline ""{0}..""", m_versionTag);                        p.StartInfo.WorkingDirectory = m_localPath;                        p.StartInfo.UseShellExecute = false;                        p.StartInfo.RedirectStandardOutput = true;                        p.StartInfo.RedirectStandardError = true;                        p.OutputDataReceived += OnOutputDataReceived;                        p.ErrorDataReceived += OnErrorDataReceived;                        p.Start();                        p.BeginOutputReadLine();                        p.BeginErrorReadLine();                        p.WaitForExit();                    }                                      // Check if the command encountered an error.                    if (!string.IsNullOrEmpty(m_errorMessage))                        throw new Exception(m_errorMessage);                     // Count the number of changes returned by the query.                    m_totalChanges = m_output.Count;                                  return true;                }                catch (Exception ex)                {                    // Notify about the exception.                    m_totalChanges = -1;                    Log.LogError(ex.Message);                                        return false;                }            }             private void OnOutputDataReceived(object sender, DataReceivedEventArgs e)            {                // Accumulate the output for processing.                if (!string.IsNullOrEmpty(e.Data))                    m_output.Add(e.Data);            }                        private void OnErrorDataReceived(object sender, DataReceivedEventArgs e)            {                // Capture the encountered error.                if (!string.IsNullOrEmpty(e.Data))                    m_errorMessage = e.Data;            }        }        ]]>      </Code>    </Task>  </UsingTask> </Project>