Publishing a package from a nuspec is broken

[RikkiGibson]

Quoting @jmarolf:

Arcade broke generating a nuget package from a nuspec in #2003. We will need to submit a PR to arcade to do the correct thing in the presence of nuspec files. The root of the issue is that is appends the CommonMetadataElements xml in to the NuspecProperties list. The pack command does not know how to extract key-value pairs from xml

Original comment: dotnet/roslyn-tools#574 (comment)
Related to: dotnet/roslyn-tools#577

I am interested in fixing this if I can, but I could use some pointers on stuff like how to use a local Microsoft.DotNet.Arcade.Sdk and how to do a dry run of a NuGet pack.

[tmat]

This is not a bug in Arcade SDK. Packaging works just fine, but the nuspec needs to be updated. See https://github.com/dotnet/sourcelink/blob/master/src/SourceLink.AzureDevOpsServer.Git/Microsoft.SourceLink.AzureDevOpsServer.Git.nuspec for an example.

[RikkiGibson]

Thank you, this makes total sense now!