Source generator for the version of this project

CHANGELOG.md

@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- The Lock file uses a project version coming from a Source Generator instead of the one looked up with reflection. [#2147](https://github.com/microsoft/kiota/issues/2147)
 - Fixed a bug in ruby where file names or paths could be too long to be packaged.
 - Fixed a bug where models descriptions would be undeterministic. [#2130](https://github.com/microsoft/kiota/issues/2130)
 - Fixed a bug in dotnet where default values for Enum properties with special characters would not match the model. [#2091](https://github.com/microsoft/kiota/issues/2091)

kiota.sln

@@ -21,6 +21,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Kiota.Web", "src\Kiota.Web\
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Kiota.Web.Tests", "tests\Kiota.Web.Tests\Kiota.Web.Tests.csproj", "{A2584ED3-5C92-4BC7-9120-D97F5404B52C}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "KiotaGenerated", "src\Kiota.Generated\KiotaGenerated.csproj", "{01ABDF23-60CD-4CE3-8DC7-8654C4BA1EE8}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -55,6 +57,10 @@ Global
 		{A2584ED3-5C92-4BC7-9120-D97F5404B52C}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{A2584ED3-5C92-4BC7-9120-D97F5404B52C}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{A2584ED3-5C92-4BC7-9120-D97F5404B52C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{01ABDF23-60CD-4CE3-8DC7-8654C4BA1EE8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{01ABDF23-60CD-4CE3-8DC7-8654C4BA1EE8}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{01ABDF23-60CD-4CE3-8DC7-8654C4BA1EE8}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{01ABDF23-60CD-4CE3-8DC7-8654C4BA1EE8}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -66,5 +72,6 @@ Global
 		{E4C108A5-A13F-4C3F-B32A-86210A4EC52A} = {2DF34BB8-B19F-4623-9E3D-9F59A14C0660}
 		{C27E6F75-8E64-4F3D-8EA0-E632BFAFF600} = {EAAC5CEA-33B8-495D-9CD0-B36794B8AFE7}
 		{A2584ED3-5C92-4BC7-9120-D97F5404B52C} = {2DF34BB8-B19F-4623-9E3D-9F59A14C0660}
+		{01ABDF23-60CD-4CE3-8DC7-8654C4BA1EE8} = {EAAC5CEA-33B8-495D-9CD0-B36794B8AFE7}
 	EndGlobalSection
 EndGlobal

src/Kiota.Builder/Kiota.Builder.csproj

@@ -36,6 +36,7 @@
     <PackageReference Include="Microsoft.OpenApi.Readers" Version="1.4.5" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1" PrivateAssets="All" />
     <PackageReference Include="YamlDotNet" Version="12.3.1" />
+    <ProjectReference Include="..\Kiota.Generated\KiotaGenerated.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false" />
   </ItemGroup>
 
 </Project>

src/Kiota.Builder/Lock/KiotaLock.cs

@@ -24,7 +24,7 @@ public class KiotaLock {
     /// <summary>
     /// The version of the Kiota generator that generated this client.
     /// </summary>
-    public string KiotaVersion { get; set; } = Assembly.GetEntryAssembly().GetName().Version.ToString();
+    public string KiotaVersion { get; set; } = Kiota.Generated.KiotaVersion.Current();
     /// <summary>
     /// The main class name for this client.
     /// </summary>

src/Kiota.Generated/KiotaGenerated.csproj

@@ -0,0 +1,19 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <!-- <TargetFramework>netstandard2.0</TargetFramework> -->
+    <TargetFramework>net7.0</TargetFramework>
+    <LangVersion>latest</LangVersion>
+    <SonarQubeExclude>true</SonarQubeExclude>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.4.0" ExcludeAssets="runtime" />
+    <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.3" ExcludeAssets="runtime" />
+  </ItemGroup>
+
+  <Target Name="DoSthAfterPublish1" AfterTargets="Publish">
+    <Copy SourceFiles="..\Kiota.Builder\Kiota.Builder.csproj" />
+  </Target>
+
+</Project>

src/Kiota.Generated/KiotaVersionGenerator.cs

@@ -0,0 +1,49 @@
+using System;
+using System.IO;
+using System.Linq;
+using System.Xml;
+using Microsoft.CodeAnalysis;
+
+[Generator]
+public class KiotaVersionGenerator : ISourceGenerator
+{
+    public void Execute(GeneratorExecutionContext context)
+    {
+        var mainSyntaxTree = context.Compilation.SyntaxTrees
+                            .First(static x => x.HasCompilationUnitRoot);
+
+        var directory = Path.GetDirectoryName(mainSyntaxTree.FilePath);
+
+        var version = "unknown";
+        try {
+            XmlDocument csproj = new XmlDocument();
+            csproj.Load(Path.Join(directory, "Kiota.Builder.csproj"));
+
+            version = csproj.GetElementsByTagName("Version")[0].InnerText;
+        } catch (Exception e)
+        {
+            throw new SystemException("KiotaVersionGenerator expanded in an invalid project, missing 'Kiota.Builder.csproj' file.", e);
+        }
+
+        string source = $@"// <auto-generated/>
+namespace Kiota.Generated
+{{
+    public static class KiotaVersion
+    {{
+        public static string Current()
+        {{
+            return ""{version}"";
+        }}
+    }}
+}}
+";
+
+        // Add the source code to the compilation
+        context.AddSource($"KiotaVersion.g.cs", source);
+    }
+
+    public void Initialize(GeneratorInitializationContext context)
+    {
+        // No initialization required for this one
+    }
+}

tests/Kiota.Builder.Tests/KiotaGeneratedTests.cs

@@ -0,0 +1,25 @@
+using System;
+using System.IO;
+using Xunit;
+
+public class KiotaGeneratedTests
+{
+    [Fact]
+    public void StaticallyGeneratedAssemblyVersion()
+    {
+        var topLevelFolder = Directory.GetParent(Path.GetDirectoryName(typeof(KiotaGeneratedTests).Assembly.Location))
+            .Parent
+            .Parent
+            .Parent
+            .Parent
+            .FullName;
+        var csprojFile = Path.Join(topLevelFolder, "src", "Kiota.Builder", "Kiota.Builder.csproj");
+
+        var line = Array.Find(File.ReadAllLines(csprojFile), l => l.Contains("<Version>"));
+        line = line.Trim();
+        line = line.Replace("<Version>", "");
+        var version = line.Replace("</Version>", "");
+
+        Assert.Equal(version, Kiota.Generated.KiotaVersion.Current());
+    }
+}