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Azure DevOps Server 2019–Portable PDB

I’m quite confused about the current state of Portable PDBs in combination with Azure DevOps Server.
If you look around on the Internet, the recommendation from Microsoft is to use SourceLink support. So all my projects reference the Microsoft.SourceLink.AzureDevOpsServer.Git NuGet package and have the following settings in the project file:
<PublishRepositoryUrl>true</PublishRepositoryUrl>
<EmbedUntrackedSources>true</EmbedUntrackedSources>
I also added a reference to my Azure DevOps server repo:
<ItemGroup>
  <SourceLinkAzureDevOpsServerGitHost Include="server-name" VirtualDirectory="tfs"/>
</ItemGroup>
More information: https://github.com/dotnet/sourcelink
Inside the documentation they mention the following.
Including PDBs in the .nupkg is generally no longer recommended as it increases the size of the package and thus restore time for projects that consume your package, regardless of whether the user needs to debug through the source code of your library or not
OK, so it is not a good idea to include the pdb in the NuGet package. So let’s publish to a file share as it is not possible yet to publish symbols to your local Azure Artifacts instance(as part of your Azure DevOps Server).
I added the Index Sources and Publish Symbols task to my build pipeline.
If you leave the Index sources checkbox checked, the task will output the following:
Skipping: D:\b\5\_work\50\s\ExampleApp\bin\Release\netcoreapp2.2\Example.pdb because it is a Portable PDB
This does make sense as the indexing is already done by sourcelink. But when I take a look at the publishing part no files are stored 😒
2020-01-14T08:58:54.0211016Z ##[debug]SYMSTORE: Number of files stored = 0
2020-01-14T08:58:54.0230550Z ##[debug]SYMSTORE: Number of errors = 0
2020-01-14T08:58:54.0250084Z ##[debug]SYMSTORE: Number of files ignored = 123
It seems that it is not able to solve this puzzle yet.
I see 2 possible workarounds:
  1. Switching back to Full PDB files, as we are not running on Linux (yet) this would be a good short term solution
  2. Keeping the Portable PDB files, but include them in the NuGet packages.
We decided to go for workaround #2.

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