Add support for deterministic builds

src/DeterministicTests/DeterministicTests.csproj

@@ -9,6 +9,9 @@
     <PackageReference Include="Xunit" Version="2.4.2" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5" />
     <ProjectReference Include="..\Shouldly\Shouldly.csproj" />
+    <PackageReference Include="DotNet.ReproducibleBuilds" Version="1.1.1">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
+    </PackageReference>
   </ItemGroup>
-  <Import Project="..\Shouldly\build.props" />
 </Project>

src/DocumentationExamples/DocumentationExamples.csproj

@@ -2,7 +2,6 @@
 
   <PropertyGroup>
     <TargetFramework>net7.0</TargetFramework>
-    <DebugType>full</DebugType>
   </PropertyGroup>
 
   <ItemGroup>
@@ -16,6 +15,5 @@
     <PackageReference Include="PublicApiGenerator" Version="10.3.0" />
     <PackageDownload Include="Microsoft.NETCore.App.Ref" Version="[3.1.0]" />
   </ItemGroup>
-  <Import Project="..\Shouldly\build.props" />
 
 </Project>

src/Shouldly.Tests/Shouldly.Tests.csproj

@@ -23,5 +23,4 @@
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
     <Reference Include="System.Memory" Version="4.5.3" />
   </ItemGroup>
-  <Import Project="..\Shouldly\build.props" />
 </Project>

src/Shouldly/Internals/SourceCodeTextGetter.cs

@@ -1,4 +1,6 @@
 using System.Diagnostics;
+using System.Diagnostics.CodeAnalysis;
+using System.Reflection;
 
 namespace Shouldly.Internals;
 
@@ -43,6 +45,23 @@ private void ParseStackTrace(StackTrace? stackTrace)
         ShouldlyFrameOffset = originatingFrame.index;
 
         var fileName = originatingFrame.frame.GetFileName();
+        if (fileName?.StartsWith(@"/_/", StringComparison.Ordinal) == true)
+        {
+            var sourceRoot = ShouldlyConfiguration.SourceRoot;
+            if (sourceRoot == null)
+            {
+                var assemblyLocation = Assembly.GetExecutingAssembly().Location;
+                if (assemblyLocation != null)
+                {
+                    var assemblyDirectory = Path.GetDirectoryName(assemblyLocation);
+                    TryFindGitRepoRoot(assemblyDirectory!, out sourceRoot);
+                }
+            }
+            if (sourceRoot != null)
+            {
+                fileName = fileName.Replace("/_/", sourceRoot + Path.PathSeparator);
+            }
+        }
         _determinedOriginatingFrame = fileName != null && File.Exists(fileName);
         _shouldMethod = shouldlyFrame.method.Name;
         FileName = fileName;
@@ -134,4 +153,27 @@ private string GetCodePartFromParameter(int indexOfMethod, string codeLines, str
             .RemoveBlock()
             .Trim();
     }
+
+    private static bool TryFindGitRepoRoot(string startDirectory, [NotNullWhen(true)] out string? gitRepoRoot)
+    {
+        try
+        {
+            var currentDirectory = new DirectoryInfo(startDirectory);
+            while (currentDirectory != null)
+            {
+                var gitDirectory = Path.Combine(currentDirectory.FullName, ".git");
+                if (Directory.Exists(gitDirectory))
+                {
+                    gitRepoRoot = currentDirectory.FullName;
+                    return true;
+                }
+
+                currentDirectory = currentDirectory.Parent;
+            }
+        }
+        catch { }
+
+        gitRepoRoot = null;
+        return false;
+    }
 }

src/Shouldly/Shouldly.csproj

@@ -23,11 +23,11 @@
   <ItemGroup>
     <PackageReference Include="EmptyFiles" Version="4.1.0" PrivateAssets="None" />
     <PackageReference Include="DiffEngine" Version="11.0.0" />
-    <Content Include="build.props" PackagePath="build\Shouldly.props" />
-    <Content Include="buildMultiTargeting.props" PackagePath="buildMultiTargeting\Shouldly.props" />
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1" PrivateAssets="All" Condition="$(Configuration) == 'Release'" />
     <None Include="..\..\assets\logo_128x128.png" Pack="true" PackagePath="assets" />
+  </ItemGroup>
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0' " >
     <PackageReference Include="TunnelVisionLabs.ReferenceAssemblyAnnotator" Version="1.0.0-alpha.160" PrivateAssets="all" />
     <PackageDownload Include="Microsoft.NETCore.App.Ref" Version="[5.0.0]" />
   </ItemGroup>

src/Shouldly/ShouldlyConfiguration.cs

@@ -49,4 +49,10 @@ public void Dispose()
 
     public static double DefaultFloatingPointTolerance = 0.0d;
     public static TimeSpan DefaultTaskTimeout = TimeSpan.FromSeconds(10);
+
+    /// <summary>
+    /// Should can enhance assertion failure messages if it can find the source code at the call site.
+    /// When using deterministic builds, set this property to explicitly tell Shouldly the root path which symbol paths with be relative to.
+    /// </summary>
+    public static string? SourceRoot { get; set; } = null;
 }