Implement exclude option

inlang/source-code/paraglide/paraglide-js-adapter-next/src/app/Link.client.test.tsx

@@ -8,6 +8,7 @@ describe("<Link>", () => {
 	beforeEach(() => {
 		//known starting state
 		setLanguageTag(sourceLanguageTag)
+		process.env.__NEXT_ROUTER_BASE_PATH = ""
 	})
 	afterEach(() => cleanup())
 

inlang/source-code/paraglide/paraglide-js-adapter-next/src/app/routing/prefix.test.ts

@@ -10,7 +10,7 @@ const {
 } = prefixStrategy({
 	availableLanguageTags: ["en", "de", "de-CH"],
 	sourceLanguageTag: "en",
-	exclude: [],
+	exclude: [/^\/api\//],
 })
 
 describe("getLocaleFromLocalisedPath", () => {
@@ -46,6 +46,10 @@ describe("getLocalisedPath", () => {
 	it("does not add a language prefix if the new locale is the source language tag", () => {
 		expect(getLocalisedPath("/some/path", "en")).toBe("/some/path")
 	})
+
+	it("does not localise excluded paths", () => {
+		expect(getLocalisedPath("/api/some/path", "de")).toBe("/api/some/path")
+	})
 })
 
 describe("translatePath", () => {
@@ -163,3 +167,4 @@ describe("localiseHref", () => {
 		})
 	})
 })
+

inlang/source-code/paraglide/paraglide-js-adapter-next/src/app/routing/prefix.ts

@@ -8,11 +8,16 @@ import type { LinkProps } from "next/link"
 export function prefixStrategy({
 	availableLanguageTags,
 	sourceLanguageTag,
+	exclude,
 }: {
 	availableLanguageTags: readonly string[]
 	sourceLanguageTag: string
 	exclude: RegExp[]
 }) {
+	function isExcluded(path: string) {
+		return exclude.some((pattern) => pattern.test(path))
+	}
+
 	function getLocaleFromLocalisedPath(localisedPath: string): string | undefined {
 		const maybeLocale = localisedPath.split("/")[1]
 		if (!availableLanguageTags.includes(maybeLocale)) return undefined
@@ -29,7 +34,7 @@ export function prefixStrategy({
 	}
 
 	function getLocalisedPath(canonicalPath: string, locale: string): string {
-		if (locale === sourceLanguageTag) return canonicalPath
+		if (isExcluded(canonicalPath) || locale === sourceLanguageTag) return canonicalPath
 		return `/${locale}${canonicalPath}`
 	}