Micha Reiser f7819e553f Add user_configuration_directory to System (#16020) ... ## Summary This PR adds a new `user_configuration_directory` method to `System`. We need it to resolve where to lookup a user-level `knot.toml` configuration file. The method belongs to `System` because not all platforms have a convention of where to store such configuration files (e.g. wasm). I refactored `TestSystem` to be a simple wrapper around an `Arc<dyn System...>` and use the `System.as_any` method instead to cast it down to an `InMemory` system. I also removed some `System` specific methods from `InMemoryFileSystem`, they don't belong there. This PR removes the `os` feature as a default feature from `ruff_db`. Most crates depending on `ruff_db` don't need it because they only depend on `System` or only depend on `os` for testing. This was necessary to fix a compile error with `red_knot_wasm` ## Test Plan I'll make use of the method in my next PR. So I guess we won't know if it works before then but I copied the code from Ruff/uv, so I have high confidence that it is correct. `cargo test`		2025-02-10 15:50:55 +01:00
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src	Add user_configuration_directory to System (#16020)	2025-02-10 15:50:55 +01:00
Cargo.toml	Add user_configuration_directory to System (#16020)	2025-02-10 15:50:55 +01:00