build: harden module name generation

Signed-off-by: Ferdinand Thiessen <opensource@fthiessen.de>

Author: susnux

build/frontend/vite.config.ts

@@ -107,16 +107,11 @@ export default createAppConfig(Object.fromEntries(viteModuleEntries), {
 				output: {
 					entryFileNames: '[name].mjs',
 					chunkFileNames: '[name]-[hash].chunk.mjs',
-					assetFileNames(ctx) {
-						const { originalFileNames } = ctx
-						const [name] = originalFileNames
-						if (name) {
-							const [, appId] = name.match(/apps\/([^/]+)\//) ?? []
-							if (appId) {
-								return `${appId}-[name]-[hash][extname]`
-							}
-						}
-						return '[name]-[hash][extname]'
+					assetFileNames({ originalFileNames }) {
+						const apps = originalFileNames.map((name) => name.match(/apps\/([^/]+)\//)?.[1])
+							.filter(Boolean)
+						const appId = apps.length === 1 ? apps[0] : 'common'
+						return `${appId}-[name]-[hash][extname]`
 					},
 					experimentalMinChunkSize: 100 * 1024,
 					/* // with rolldown-vite: