docs(docs-infra): remove non-necessary files from playground zip. (angular#59728)

fixes angular#56739

PR Close angular#59728

Author: JeanMeche

adev/shared-docs/utils/filesystem.utils.ts

@@ -41,19 +41,23 @@ interface FileSystemAPI {
 export const checkFilesInDirectory = async (
   dir: string,
   fs: FileSystemAPI,
-  filterFoldersPredicate: (path?: string) => boolean = () => true,
+  filterFromRootPredicate: ((path: string) => boolean) | null,
   files: FileAndContent[] = [],
 ) => {
   const entries = (await fs.readdir(dir, {withFileTypes: true})) ?? [];
 
   for (const entry of entries) {
     const fullPath = normalizePath(`${dir}/${entry.name}`);
 
+    if (filterFromRootPredicate && !filterFromRootPredicate?.(entry.name)) {
+      continue;
+    }
+
     if (entry.isFile()) {
       const content = await fs.readFile(fullPath, 'utf-8');
       files.push({content, path: fullPath});
-    } else if (entry.isDirectory() && filterFoldersPredicate(entry.name)) {
-      await checkFilesInDirectory(fullPath, fs, filterFoldersPredicate, files);
+    } else if (entry.isDirectory()) {
+      await checkFilesInDirectory(fullPath, fs, null, files);
     }
   }
 

adev/src/app/editor/node-runtime-sandbox.service.ts

@@ -143,12 +143,20 @@ export class NodeRuntimeSandbox {
   async getSolutionFiles(): Promise<FileAndContent[]> {
     const webContainer = await this.webContainerPromise!;
 
-    const excludeFolders = ['node_modules', '.angular', 'dist'];
+    const excludeFromRoot = [
+      'node_modules',
+      '.angular',
+      'dist',
+      'BUILD.bazel',
+      'idx',
+      'package.json.template',
+      'config.json',
+    ];
 
     return await checkFilesInDirectory(
       '',
       webContainer.fs,
-      (path?: string) => !!path && !excludeFolders.includes(path),
+      (path: string) => !excludeFromRoot.includes(path),
     );
   }