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@matthesketh/prettier-plugin-utopia

A Prettier plugin for UtopiaJS .utopia single-file components.

The plugin splits a component into its top-level blocks and hands each block's body to Prettier's own well-tested formatter:

• <template> → the html formatter (directives such as :bind, @on, u-for and {{ }} interpolations are preserved verbatim);
• <script> / <test> → the typescript formatter;
• <style> → css, or scss / less when lang says so.

Blocks are kept in source order, separated by a blank line. Formatting is idempotent, and a block Prettier cannot parse is left untouched (only re-indented) rather than failing the whole file.

Install

pnpm add -D prettier @matthesketh/prettier-plugin-utopia

prettier (>= 3) is a peer dependency.

Usage

// .prettierrc
{
  "plugins": ["@matthesketh/prettier-plugin-utopia"]
}

Then prettier --write '**/*.utopia'.