[BUG?]: Locale resolver scans srcDir instead of rootDir

[Gerbuuun]

In Nuxt 4 the srcDir will be app by default instead of being the same as the rootDir.
I want to put my lang directory outside of the app directory because I also use translations server side.

In the module setup it will scan the srcDir for the translation files but they are located outside of it.

i18n/src/module.ts

Lines 184 to 188 in cddb8b3

	const localeInfo = await resolveLocales(
	resolve(nuxt.options.srcDir),
	normalizedLocales,
	relative(nuxt.options.buildDir, nuxt.options.srcDir)
	)

(The experimental.localeDetector, in contrast, does scan the rootDir)

i18n/src/nitro.ts

Line 138 in cddb8b3

const pathTo = resolve(serverI18nLayer.config.rootDir, serverI18nLayer.config.i18n!.experimental!.localeDetector!)

I tested the module with only changing the nuxt.options.srcDir to nuxt.options.rootDir and it works fine.
I hope this is the easy fix I think it is.

cc @danielroe

[Gerbuuun]

Just realized I can use a relative path in the config.

i18n: {
  langDir: '../lang',
}

A point on consistency could still be made though.

[kazupon]

Thank you for your reporting!
We are now going to work on nuxt-i18n v9. At that time we will also test it with nuxt4. Please wait!

[bernhardberger]

This is also an issue when using local modules with Nuxt4 directory structure, I haven't found a way around this yet tbh:

ERROR  Pre-transform error: Failed to resolve import "../app/modules/mylocalmodule/src/runtime/lang/de-AT.json" from ".nuxt/i18n.options.mjs". Does the file exist? (x7)

It tries to look up the module under /app/modules which should actually be /modules.

I'd even argue that this is already broken vor v3 for people that change their srcDir manually to be different from rootDir. I just seems to happen that nobody actually does this in practice right now.

[danielroe]

@bernhardberger Could you open an issue with a reproduction on https://github.com/nuxt/nuxt ? 🙏

[BobbieGoede]

@Gerbuuun
In v9 we will have a new default directory structure to be more consistent with Nuxt 4, we've just released https://github.com/nuxt-modules/i18n/releases/tag/v8.4.0 which allows you to opt into this feature. I18n files will be resolved from this directory in the root of a project, more details on this on the documentation page.

Let me know if you have any questions, hopefully this resolves your issue 😄