fix: tell vite not to optimize clsx

dominikg · dominikg · commit dd479a4dd139 · 2025-04-22T21:26:05.000+02:00
diff --git a/packages/vite-plugin-svelte/src/utils/options.js b/packages/vite-plugin-svelte/src/utils/options.js
@@ -577,6 +577,10 @@ function buildExtraConfigForSvelte(config) {
 	if (!isDepExternaled('esm-env', config.ssr?.external ?? [])) {
 		noExternal.push('esm-env');
 	}
+	// prevent server restart when clsx is lazily discovered by vite - it does not need optimization
+	if (!isDepIncluded('clsx', config.optimizeDeps?.include ?? [])) {
+		exclude.push('clsx');
+	}
 	return { optimizeDeps: { include, exclude }, ssr: { noExternal, external } };
 }
 

Original file line number	Diff line number	Diff line change
`@@ -577,6 +577,10 @@ function buildExtraConfigForSvelte(config) {`
`577`	`577`	`if (!isDepExternaled('esm-env', config.ssr?.external ?? [])) {`
`578`	`578`	`noExternal.push('esm-env');`
`579`	`579`	`}`
	`580`	`+ // prevent server restart when clsx is lazily discovered by vite - it does not need optimization`
	`581`	`+ if (!isDepIncluded('clsx', config.optimizeDeps?.include ?? [])) {`
	`582`	`+ exclude.push('clsx');`
	`583`	`+ }`
`580`	`584`	`return { optimizeDeps: { include, exclude }, ssr: { noExternal, external } };`
`581`	`585`	`}`
`582`	`586`