CopyDebugSymbolFilesFromPackages does not copy pdbs from runtime dir

[SimonCropp]

given the following project

<Project Sdk="Microsoft.NET.Sdk">
    <PropertyGroup>
        <OutputType>Exe</OutputType>
        <TargetFramework>net8.0</TargetFramework>
        <CopyDebugSymbolFilesFromPackages>true</CopyDebugSymbolFilesFromPackages>
    </PropertyGroup>
    <ItemGroup>
      <PackageReference Include="Microsoft.Data.SqlClient" Version="5.1.4" />
    </ItemGroup>
</Project>

the directory bin\Release\net8.0\runtimes\win\lib\net6.0 does not contain any pdbs

but the package does have a pdb in that dir

Machine:

• sdk 8.0.101
• Windows 11 Enterprise 23H2
• Rider 2023.3.3

[SimonCropp]

for anyone else who gets here, this is current approach i am using to get all the pdbs

  <Target Name="IncludeSymbolFromReferences"
          AfterTargets="ResolveAssemblyReferences"
          Condition="@(ReferenceCopyLocalPaths) != ''">
    <ItemGroup>
      <PdbFilesToAdd
              Include="%(ReferenceCopyLocalPaths.RelativeDir)%(ReferenceCopyLocalPaths.Filename).pdb"
              DestinationSubDirectory="%(ReferenceCopyLocalPaths.DestinationSubDirectory)" />
      <PdbFilesToAdd Remove="@(PdbFilesToAdd)"
                     Condition="!Exists('%(FullPath)')" />
      <ReferenceCopyLocalPaths Include="@(PdbFilesToAdd)" />
    </ItemGroup>
  </Target>

[KalleOlaviNiemitalo]

NuGet does not output "related" within "runtimeTargets" into project.assets.json like this:

      "Microsoft.Data.SqlClient/5.1.4": {
        "type": "package",
        "dependencies": {
          "Azure.Identity": "1.10.3",
          "Microsoft.Data.SqlClient.SNI.runtime": "5.1.1",
          "Microsoft.Identity.Client": "4.56.0",
          "Microsoft.IdentityModel.JsonWebTokens": "6.24.0",
          "Microsoft.IdentityModel.Protocols.OpenIdConnect": "6.24.0",
          "Microsoft.SqlServer.Server": "1.0.0",
          "System.Configuration.ConfigurationManager": "6.0.1",
          "System.Diagnostics.DiagnosticSource": "6.0.1",
          "System.Runtime.Caching": "6.0.0",
          "System.Security.Cryptography.Cng": "5.0.0",
          "System.Security.Principal.Windows": "5.0.0",
          "System.Text.Encoding.CodePages": "6.0.0",
          "System.Text.Encodings.Web": "6.0.0"
        },
        "compile": {
          "ref/net6.0/Microsoft.Data.SqlClient.dll": {
            "related": ".pdb;.xml"
          }
        },
        "runtime": {
          "lib/net6.0/Microsoft.Data.SqlClient.dll": {
            "related": ".pdb;.xml"
          }
        },
        "runtimeTargets": {
          "runtimes/unix/lib/net6.0/Microsoft.Data.SqlClient.dll": {
            "assetType": "runtime",
            // NuGet omits "related": ".pdb",
            "rid": "unix"
          },
          "runtimes/win/lib/net6.0/Microsoft.Data.SqlClient.dll": {
            "assetType": "runtime",
            // NuGet omits "related": ".pdb",
            "rid": "win"
          }
        }
      },

And even if did, the ResolvePackageAssets task in .NET SDK would ignore those.

Is .NET SDK is supposed to get the "related" property from within "runtime" and apply it to equally-named assets within "runtimeTargets" as well? I guess it isn't, because the package has no "*.xml" files within the "runtimes" directory; if the SDK reused the "related" property, it would need to check for file existence rather than rely on project.assets.json listing the exact files. The Consuming pdb support with PackageReference spec does not mention runtime-specific related files.