Zed won't read TailwindCSS plugins from prettier.config.js

[tifandotme]

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Describe the bug / provide steps to reproduce it

Zed is not using prettier-plugin-tailwindcss when I run Format Document.

This only happens if I use this config format (prettier.config.js):

/** @type {import("prettier-plugin-tailwindcss").PluginOptions} */
const tailwindConfig = {
  tailwindFunctions: ["cn"],
  tailwindAttributes: ["className", "class"],
  tailwindStylesheet: "./app/globals.css",
}

/** @type {import("prettier").Options} */
const config = {
  semi: false,
  experimentalTernaries: true,

  ...tailwindConfig,

  plugins: ["prettier-plugin-tailwindcss"],
}

export default config

However, Zed reads the plugins correctly using this format (.prettierrc), which is proven by it sorting the Tailwind CSS classes:

{
  "$schema": "https://json.schemastore.org/prettierrc",
  "semi": false,
  "experimentalTernaries": true,
  "tailwindFunctions": ["cn"],
  "tailwindAttributes": ["className", "class"],
  "tailwindStylesheet": "./app/globals.css",

  "plugins": ["prettier-plugin-tailwindcss"]
}

Zed Version and System Specs

Zed: v0.170.1 (Zed)
OS: macOS 15.2.0
Memory: 8 GiB
Architecture: aarch64

If applicable, add screenshots or screencasts of the incorrect state / behavior

Format Document and running bun run format:write should results in the same formatting behaviour.

Screen.Recording.2025-01-23.at.23.48.29.mov

If applicable, attach your Zed.log file to this issue.

Zed.log

[notpeter]

Zed is just invoking prettier, not specifying a configuration file to use.

Prettier loads files from different configuration files which have different precedence.

.prettierc has higher precedence than prettier.config.js. Is it possible you have an additional .prettierrc.json or other config file hiding in subdirectories / parent directories?

[tifandotme]

@notpeter oh turns out its because I was using v4 of tailwindcss which they (plugin maintainer) just fixed: tailwindlabs/prettier-plugin-tailwindcss#342

sorry.