Configuring Ruff Formatter in Nvim (Python)#

Preface#

The author uses Lazyvim, which utilizes Mason to manage formatters. The main issue encountered is that in Python files, the author does not want formatting that breaks lines for code with a width less than 125 (i.e., splitting a single line of code into multiple lines to avoid excessive length).

Creating a pyproject.toml in every project seems a bit cumbersome, so the goal is to set up a global configuration.

Global Configuration for Ruff Formatter#

Create a new folder named ruff in the ~/.config/ directory. Then, inside the ruff folder, create a file named pyproject.toml and enter the following content:

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[tool.ruff]
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line-length = 125
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# Other configurations can also be placed here

After saving, your Ruff formatter should work correctly.