C#DK Activates on SHIFT+CTRL+B when no .NET assets present

[timheuer]

Describe the Issue

The C# Dev Kit extension is activating unnecessarily when no .NET assets are present in the workspace, causing confusion and conflict for non-.NET project workspaces.

ctrlshiftb-activates.mp4

Steps To Reproduce

1. Install C# Dev Kit (and .NET SDK) + C++ Extension pack
2. Close any workspaces and reload window (to be clear of any activated extensions)
3. create a new text file (foo.cpp)
4. Open "Developer: Show Active Extensions"
5. OBSERVE: C#/C#DK is not active, no .NET project is open in workspace, no csproj/razor/cs files open/active
6. CTRL+SHIFT+B
7. OBSERVE: C#/C#DK suddenly get activated, output logs open up and shows events activating the language extension and retrieving razor packages if not present
8. Opening the extension host log:
   2024-06-26 10:04:52.276 [info] ExtensionService#_doActivateExtension vscode.grunt, startup: false, activationEvent: 'onTaskType:grunt'
   2024-06-26 10:04:52.288 [info] ExtensionService#_doActivateExtension vscode.gulp, startup: false, activationEvent: 'onTaskType:gulp'
   2024-06-26 10:04:52.295 [info] ExtensionService#_doActivateExtension vscode.jake, startup: false, activationEvent: 'onTaskType:jake'
   2024-06-26 10:04:52.301 [info] ExtensionService#_doActivateExtension vscode.npm, startup: false, activationEvent: 'onTaskType:npm'
   2024-06-26 10:04:52.338 [info] ExtensionService#_doActivateExtension vscode.typescript-language-features, startup: false, activationEvent: 'onTaskType:typescript'
   2024-06-26 10:04:52.424 [info] ExtensionService#_doActivateExtension ms-dotnettools.csharp, startup: false, activationEvent: 'onTaskType:dotnet', root cause: ms-dotnettools.csdevkit
   2024-06-26 10:04:52.555 [info] ExtensionService#_doActivateExtension ms-vscode.cmake-tools, startup: false, activationEvent: 'onTaskType:cmake'
   2024-06-26 10:04:52.924 [info] ExtensionService#_doActivateExtension ms-dotnettools.csdevkit, startup: false, activationEvent: 'onTaskType:dotnet'

Expected Behavior

C# Dev Kit should not activate in non .NET-scenarios

Environment Information

VS Code Extensions
ms-dotnettools.csdevkit: 1.8.10
ms-dotnettools.csharp: 2.35.15

[timheuer]

Related?

• VS Code 1.76 starts *all* onTaskType extensions when debugging vscode#175821
• Extension activates when running build tasks rust-lang/rust-analyzer#14231
• VS Code 1.81.1 starts *all* onTaskType extensions when debugging vscode#192043

[timheuer]

Closing my own bug here as external. Confirming that VSCode is tracking primary issue as: microsoft/vscode#192043