From 1a70ef8f0a2ecb676a7f013d7dc0082adcec5de5 Mon Sep 17 00:00:00 2001
From: Daniel Cazzulino <daniel@cazzulino.com>
Date: Mon, 26 Dec 2016 15:16:23 -0300
Subject: [PATCH] Added support for IsDirty flag

Fixes #10 and allows conditionals in code that depend
on whether the build is clean or dirty from Git's point
of view.
---
 src/GitInfo/build/GitInfo.cs.pp   |  4 ++++
 src/GitInfo/build/GitInfo.targets | 16 ++++++++++++++++
 src/GitInfo/build/GitInfo.vb.pp   |  4 ++++
 src/GitInfo/readme.txt            |  3 +++
 4 files changed, 27 insertions(+)

diff --git a/src/GitInfo/build/GitInfo.cs.pp b/src/GitInfo/build/GitInfo.cs.pp
index 878d549..cc90e32 100644
--- a/src/GitInfo/build/GitInfo.cs.pp
+++ b/src/GitInfo/build/GitInfo.cs.pp
@@ -3,6 +3,7 @@
 #pragma warning disable 0436
 
 #if ADDMETADATA
+[assembly: System.Reflection.AssemblyMetadata("GitInfo.IsDirty", RootNamespace.ThisAssembly.Git.IsDirty)]
 [assembly: System.Reflection.AssemblyMetadata("GitInfo.Branch", RootNamespace.ThisAssembly.Git.Branch)]
 [assembly: System.Reflection.AssemblyMetadata("GitInfo.Commit", RootNamespace.ThisAssembly.Git.Commit)]
 [assembly: System.Reflection.AssemblyMetadata("GitInfo.Sha", RootNamespace.ThisAssembly.Git.Sha)]
@@ -30,6 +31,9 @@
     /// <summary>Provides access to the git information for the current assembly.</summary>
     public partial class Git
     {
+      /// <summary>IsDirty: $GitIsDirty$</summary>
+      public const bool IsDirty = $GitIsDirty$;
+      
       /// <summary>Branch: $GitBranch$</summary>
       public const string Branch = "$GitBranch$";
 
diff --git a/src/GitInfo/build/GitInfo.targets b/src/GitInfo/build/GitInfo.targets
index da9c725..6697cbe 100644
--- a/src/GitInfo/build/GitInfo.targets
+++ b/src/GitInfo/build/GitInfo.targets
@@ -185,6 +185,16 @@
 		<Message Text="Determined Git dir as '$(GitDir)'" Importance="$(GitInfoReportImportance)" Condition="'$(GitRoot)' != ''" />
 		<Warning Text="Directory $(GitInfoBaseDir) is not in a Git repository. Cannot determine Git repository root." Condition="'$(GitRoot)' == ''" />
 
+		<Exec Command='$(GitExe) diff-index --quiet HEAD'
+			  EchoOff="true"
+			  Condition="'$(GitRoot)' != ''"
+			  StandardErrorImportance="low"
+			  StandardOutputImportance="low"
+			  ConsoleToMSBuild="true"
+			  WorkingDirectory="$(GitRoot)"
+			  IgnoreExitCode="true">
+			<Output TaskParameter="ExitCode" PropertyName="GitIsDirty" />
+		</Exec>
 	</Target>
 
 	<Target Name="_GitInputs" DependsOnTargets="_GitRoot" Returns="@(_GitInput)">
@@ -682,6 +692,12 @@
 			<_ThisAssemblyContent Condition="'$(ThisAssemblyNamespace)' == ''">$(_ThisAssemblyContent.Replace('RootNamespace.', ''))</_ThisAssemblyContent>
 
 			<_ThisAssemblyContent>$(_ThisAssemblyContent.Replace('_RootNamespace_', '$(ThisAssemblyNamespace)'))</_ThisAssemblyContent>
+
+			<_ThisAssemblyContent Condition="'$(Language)' == 'C#' And '$(GitIsDirty)' == '1'">$(_ThisAssemblyContent.Replace('$GitIsDirty$', 'true'))</_ThisAssemblyContent>
+			<_ThisAssemblyContent Condition="'$(Language)' == 'C#' And '$(GitIsDirty)' == '0'">$(_ThisAssemblyContent.Replace('$GitIsDirty$', 'false'))</_ThisAssemblyContent>
+			<_ThisAssemblyContent Condition="'$(Language)' == 'VB' And '$(GitIsDirty)' == '1'">$(_ThisAssemblyContent.Replace('$GitIsDirty$', 'True'))</_ThisAssemblyContent>
+			<_ThisAssemblyContent Condition="'$(Language)' == 'VB' And '$(GitIsDirty)' == '0'">$(_ThisAssemblyContent.Replace('$GitIsDirty$', 'False'))</_ThisAssemblyContent>
+			
 			<_ThisAssemblyContent>$(_ThisAssemblyContent.Replace('$GitBranch$', '$(GitBranch)'))</_ThisAssemblyContent>
 			<_ThisAssemblyContent>$(_ThisAssemblyContent.Replace('$GitCommits$', '$(GitCommits)'))</_ThisAssemblyContent>
 			<_ThisAssemblyContent>$(_ThisAssemblyContent.Replace('$GitCommit$', '$(GitCommit)'))</_ThisAssemblyContent>
diff --git a/src/GitInfo/build/GitInfo.vb.pp b/src/GitInfo/build/GitInfo.vb.pp
index fe3ec2d..ca58028 100644
--- a/src/GitInfo/build/GitInfo.vb.pp
+++ b/src/GitInfo/build/GitInfo.vb.pp
@@ -2,6 +2,7 @@
 #Const $MetadataDefine$ = 1
 
 #If ADDMETADATA
+<Assembly: System.Reflection.AssemblyMetadata("GitInfo.IsDirty", Global.RootNamespace.ThisAssembly.Git.IsDirty)>
 <Assembly: System.Reflection.AssemblyMetadata("GitInfo.Branch", Global.RootNamespace.ThisAssembly.Git.Branch)>
 <Assembly: System.Reflection.AssemblyMetadata("GitInfo.Commit", Global.RootNamespace.ThisAssembly.Git.Commit)>
 <Assembly: System.Reflection.AssemblyMetadata("GitInfo.Sha", Global.RootNamespace.ThisAssembly.Git.Sha)>
@@ -28,6 +29,9 @@
     Partial Class ThisAssembly
         ''' <summary>Provides access to the git information for the current assembly.</summary>
         Partial Public Class Git
+            ''' <summary>IsDirty: $GitIsDirty$</summary>
+            Public Const IsDirty = $GitIsDirty$
+
             ''' <summary>Branch: $GitBranch$</summary>
             Public Const Branch = "$GitBranch$"
 
diff --git a/src/GitInfo/readme.txt b/src/GitInfo/readme.txt
index c87843f..a0ddda1 100644
--- a/src/GitInfo/readme.txt
+++ b/src/GitInfo/readme.txt
@@ -17,6 +17,7 @@ target that depends on the GitInfo target:
   $(GitSemVerLabel)
   $(GitSemVerDashLabel)
   $(GitSemVerSource)
+  $(GitIsDirty)
 
 From C# and VB, by default code is generated too so that the same 
 information can be accessed from code, to construct your own 
@@ -56,6 +57,8 @@ The available constants from code are:
   ThisAssembly.Git.SemVer.Label
   ThisAssembly.Git.SemVer.DashLabel
   ThisAssembly.Git.SemVer.Source
+  ThisAssembly.Git.IsDirty
+  
 
 Available MSBuild customizations: