Schema validation for cmake-variants.yaml doesn't work

[TSlivede]

Brief Issue Summary

https://vector-of-bool.github.io/docs/vscode-cmake-tools/variants.html says:

Note: CMake Tools provides a YAML validation schema, which is only checked in the editor when using the YAML Support by Red Hat extension.

I installed YAML Language Support but get the error:

Cannot Load content for: cmake-tools-schema:///schemas/variants-schema.json. Unknown schema: 'cmake-tools-schema'

Expected:

1. Create file cmake-variants.yaml in project root directory
2. open file
3. get schema based auto completion

Apparent Behavior:

1. Create file cmake-variants.yaml in project root directory
2. open file
3. click on variants-schema.json shown directly above line 1
4. get error listed above.

CMake Tools Log

[variant] Loaded new set of variants
[kit] Successfully loaded 8 kits from /home/user/.local/share/CMakeTools/cmake-tools-kits.json

Other Logs

The output window for "YAML Support" is completely empty.

Platform and Versions

• Operating System: Ubuntu 20.04.3 LTS
• CMake Version: 3.16
• VSCode Version: 1.16.1
• CMake Tools Extension Version: 1.8.1
• Compiler/Toolchain: GCC 9.3
• Red Hat YAML Language Support: 0.22.0

Other Notes/Information

~/.vscode/extensions/ms-vscode.cmake-tools-1.8.1/dist/schema contains schemas in several languages

A created cmake-variants.json file gets successfully validated against the schema.

[andreeis]

@TSlivede, thank you for opening this report. We reproduce the problem. We will investigate and fix this.

[gcampbell-msft]

@TSlivede This should get resolved by #3720, once merged, please confirm, thanks!