MSBuild process assumes generated file in project root, not at generation site #36

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1. thygrrr commented on Nov 14, 2024

   

   thygrrr

   on Nov 14, 2024

   Last edited by thygrrr

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   The command line generator does the same, also placing the file at the project root (except the naming is different - Streams.generated.cs)
2. thygrrr commented on Nov 14, 2024

   

   thygrrr

   on Nov 14, 2024

   Last edited by thygrrr

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   If I write the source like this:

    context[$"generated\\Streams.g.cs"].Write($$"""{{source}}""");

   This will create the file in ANOTHER subdirectory (generator/generated/Streams.g.cs), and then the MSBuild task will look for the file in 'P:\fennECS\fennecs\generated\Streams.g.cs' (again 1 directory too high)
3. thygrrr commented on Nov 14, 2024

   

   thygrrr

   on Nov 14, 2024

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   Running this from the Root of the project (with the files cluttering the root), this works according to the documentation.

   However, the build task does not seem to care about dependencies, and runs in full every time the solution is built (instead of tracking which, if any, .csx files were changed). This adds a significant chunk of compilation time that strongly affects test-driven development workflows.
4. thygrrr commented on Nov 14, 2024

   

   thygrrr

   on Nov 14, 2024

   Last edited by thygrrr

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       <PropertyGroup>
           <DisableFastUpToDateCheck>true</DisableFastUpToDateCheck>
       </PropertyGroup>
       
       <ItemGroup>
           <StreamTemplate Include="generators\Streams.*.csx">
               <OutputFile>generated\%(Filename).g.cs</OutputFile>
           </StreamTemplate>
       </ItemGroup>
   
       <Target Name="GenerateStreamRunners"
               BeforeTargets="CoreCompile"
               Inputs="@(StreamTemplate)"
               Outputs="@(StreamTemplate->'%(OutputFile)')">
           <Exec Command="dotnet-codegencs template run %(StreamTemplate.Identity) -o generated"
                 WorkingDirectory="$(ProjectDir)"/>
       </Target>

   This is my current workaround.
   
5. Drizin

   added

   bugSomething isn't workingSomething isn't working

   help wantedExtra attention is neededExtra attention is needed

   on Sep 21, 2025