fix(@angular/build): disable JS transformer persistent cache on web containers

clydin · clydin · commit 86a07237e607 · 2024-05-31T15:12:14.000-04:00
The backing store for the persistent caching of the JavaScript transformers
is not currently supported on web containers. To allow other potential forms
of caching, the JavaScript transformer caching is now selectively disabled
when executed on a web container. This allows for development server prebundling
to be used on web containers if needed.
diff --git a/packages/angular/build/src/tools/esbuild/angular/compiler-plugin.ts b/packages/angular/build/src/tools/esbuild/angular/compiler-plugin.ts
@@ -61,9 +61,10 @@ export function createCompilerPlugin(
       let setupWarnings: PartialMessage[] | undefined = [];
       const preserveSymlinks = build.initialOptions.preserveSymlinks;
 
-      // Initialize a worker pool for JavaScript transformations
+      // Initialize a worker pool for JavaScript transformations.
+      // Webcontainers currently do not support this persistent cache store.
       let cacheStore: import('../lmdb-cache-store').LmbdCacheStore | undefined;
-      if (pluginOptions.sourceFileCache?.persistentCachePath) {
+      if (pluginOptions.sourceFileCache?.persistentCachePath && !process.versions.webcontainer) {
         const { LmbdCacheStore } = await import('../lmdb-cache-store');
         cacheStore = new LmbdCacheStore(
           path.join(pluginOptions.sourceFileCache.persistentCachePath, 'angular-compiler.db'),
