Split C# NuGet into library and tool packages#6912
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jkschneider merged 1 commit intomainfrom Mar 10, 2026
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PackAsTool=true causes NuGet to place DLLs in tools/ instead of lib/, making types unavailable at compile time for downstream PackageReference consumers. The OpenRewrite.csproj was both a library (SDK types like Recipe, CSharpVisitor) and a tool (Program.cs for the RPC server), so the packed .nupkg put everything in tools/ and was unusable as a dependency. Split into two projects: - OpenRewrite.CSharp (library) — all SDK types, packable with DLLs in lib/ via PackageReference - OpenRewrite.CSharp.Tool (tool) — just Program.cs with a ProjectReference to the library, packed with PackAsTool=true for dotnet tool install Also adds a csharpPublishLocal task for local NuGet feed development and simplifies the snapshot version logic to always use timestamps.
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Summary
OpenRewrite.csprojinto two projects:OpenRewrite.CSharp(library) andOpenRewrite.CSharp.Tool(tool).PackAsTool=truecauses NuGet to place DLLs intools/instead oflib/, making types unavailable at compile time for downstreamPackageReferenceconsumers. Since the project was both a library and a tool, the packed.nupkgwas unusable as a dependency.OpenRewrite.CSharp(library) contains all SDK types (Recipe, CSharpVisitor, etc.), packable with DLLs inlib/— this is what downstream projects reference viaPackageReference.OpenRewrite.CSharp.Tool(tool) contains justProgram.cswith aProjectReferenceto the library, packed withPackAsTool=truefordotnet tool install rewrite-csharp.csharpPublishLocalGradle task for local NuGet feed development (~/.nuget/local-feed/).-devsuffix for non-CI builds).Test plan
./gradlew :rewrite-csharp:csharpPackproduces both.nupkgfiles indist/dotnet tool installworks with theOpenRewrite.CSharp.ToolpackagePackageReferencetoOpenRewrite.CSharpresolves SDK types at compile time./gradlew :rewrite-csharp:csharpPublishLocalpublishes to~/.nuget/local-feed/