build: continue publishing @angular/bazel snapshot builds (angular#…

…49583)

We are no longer publishing Angular Bazel to npm, but we are still
using it in the components repo. We should still publish it to
benefit from e.g. the APF v16 changes.

PR Close angular#49583

scripts/build/package-builder.mts

@@ -42,23 +42,32 @@ export function performNpmReleaseBuild(): BuiltPackage[] {
  * Git HEAD SHA is included in the version (for easier debugging and back tracing).
  */
 export function performDefaultSnapshotBuild(): BuiltPackage[] {
-  return buildReleasePackages(defaultDistPath, /* isSnapshotBuild */ true);
+  return buildReleasePackages(defaultDistPath, /* isSnapshotBuild */ true, [
+    // For snapshot builds, the Bazel package is still built. We want to have
+    // GitHub snapshot builds for it.
+    '//packages/bazel:npm_package',
+  ]);
 }
 
 /**
  * Builds the release packages with the given compile mode and copies
  * the package output into the given directory.
  */
-function buildReleasePackages(distPath: string, isSnapshotBuild: boolean): BuiltPackage[] {
+function buildReleasePackages(
+  distPath: string,
+  isSnapshotBuild: boolean,
+  additionalTargets: string[] = []
+): BuiltPackage[] {
   console.info('######################################');
   console.info('  Building release packages...');
   console.info('######################################');
 
   // List of targets to build. e.g. "packages/core:npm_package", or "packages/forms:npm_package".
-  const targets = exec(queryPackagesCmd, true).split(/\r?\n/);
+  const targets = exec(queryPackagesCmd, true).split(/\r?\n/).concat(additionalTargets);
   const packageNames = getPackageNamesOfTargets(targets);
   const bazelBinPath = exec(`${bazelCmd} info bazel-bin`, true);
-  const getBazelOutputPath = (pkgName: string) => join(bazelBinPath, 'packages', pkgName, 'npm_package');
+  const getBazelOutputPath = (pkgName: string) =>
+    join(bazelBinPath, 'packages', pkgName, 'npm_package');
   const getDistPath = (pkgName: string) => join(distPath, pkgName);
 
   // Build with "--config=release" or `--config=snapshot-build` so that Bazel