Hi, have you ever consider allow passing more complex configurations to ruff from command line arguments (e.g., a JSON string or similar)? For example, like clang-format (docs):

When specifying configuration in the -style= option, the same configuration is applied for all input files. The format of the configuration is:
-style='{key1: value1, key2: value2, ...}'

This might need changes in ruff upstream. But I think we can discuss it here first.

For C/C++ projects, I'm using microsoft/vscode-cpptools and I have:

{
    //* C/C++ */
    "C_Cpp.default.configurationProvider": "ms-vscode.cmake-tools",
    "C_Cpp.autocomplete": "Default",
    "C_Cpp.formatting": "clangFormat",
    "C_Cpp.clang_format_sortIncludes": false,
    "C_Cpp.clang_format_style": "file",
    "C_Cpp.clang_format_fallbackStyle": "{ BasedOnStyle: Google, IndentWidth: 4, AccessModifierOffset: -3, ColumnLimit: 100, BinPackArguments: false, BinPackParameters: false }"
}

It provides a fallback style if the .clang-format file does not exist in the project. I think we can provide a similar thing like:

{
    //* Ruff */
    "ruff.configuration": "file",
    "ruff.fallbackConfiguration": "{ ling-length: 100, target-version: 'py38', show-source: true, isort.lines-after-imports: 2, flake8-quotes.inline-quotes: 'single' }"
}

when pyproject.toml or ruff.toml does not exist in the project. Currently, we cannot pass options for sub-checker from the command line. This would be a limitation for vscode configuration "ruff.args".

[tool.ruff.isort]
lines-after-imports = 2

[tool.ruff.flake8-quotes]
inline-quotes = "single"

Support Ruff configuration settings as VS Code extension options #6

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