build: create a listing of the packages which are released

(cherry picked from commit 444ca3a)

Author: josephperrott

.ng-dev/release.ts

@@ -1,10 +1,10 @@
 import '../lib/bootstrap-local';
 
 import { ReleaseConfig } from '@angular/dev-infra-private/release/config';
-import { packages } from '../lib/packages';
+import { releasePackages } from '../lib/packages';
 import buildPackages from '../scripts/build';
 
-const npmPackages = Object.keys(packages);
+const npmPackages = Object.keys(releasePackages);
 
 /** Configuration for the `ng-dev release` command. */
 export const release: ReleaseConfig = {

lib/packages.ts

@@ -238,3 +238,8 @@ for (const pkgName of Object.keys(packages)) {
   });
   pkg.dependencies.forEach((depName) => packages[depName].reverseDependencies.push(pkgName));
 }
+
+/** The set of packages which are built and released. */
+export const releasePackages = Object.fromEntries(
+  Object.entries(packages).filter(([_, pkg]) => !pkg.private),
+);