biome-extends-bug

Biome's "extends" configuration clause appears to not work for already-extended configuration files.

Example Failure (doublly-nested config)

Note

That this example has configuration chained as:

biome.json extends parent.json extends grandparent.json

Run the following:

cd ./examples/doubly-nested && yarn run biome check example.json

And observe that it is unable to parse the file:

Expected a property but instead found '// Recommendations'
…

Example Success (singly-nested config)

Note

That this example has configuration chained as:

biome.json extends parent.json

Observe that biome is able to correctly parse the example file in this scenario:

cd ./examples/singly-nested && yarn run biome check example.json

Example Success (config w/o extends)

Note

That this example has no configuration extension

Observe that biome is able to correctly parse the example file in this scenario:

cd ./examples/no-nesting && yarn run biome check example.json