chore: import upstream snapshot with attribution

packages/angular/src/executors/application/application.impl.ts

@@ -0,0 +1,60 @@
+import type { BuilderOutput } from '@angular-devkit/architect';
+import type { ExecutorContext } from '@nx/devkit';
+import type { DependentBuildableProjectNode } from '@nx/js/internal';
+import { createBuilderContext } from 'nx/src/adapter/ngcli-adapter';
+import { createTmpTsConfigForBuildableLibs } from '../utilities/buildable-libs';
+import { assertBuilderPackageIsInstalled } from '../utilities/builder-package';
+import {
+  loadIndexHtmlTransformer,
+  loadPlugins,
+} from '../utilities/esbuild-extensions';
+import type { ApplicationExecutorOptions } from './schema';
+import { normalizeOptions } from './utils/normalize-options';
+import { validateOptions } from './utils/validate-options';
+
+export default async function* applicationExecutor(
+  options: ApplicationExecutorOptions,
+  context: ExecutorContext
+): AsyncIterable<BuilderOutput> {
+  validateOptions(options);
+
+  const {
+    buildLibsFromSource = true,
+    plugins: pluginPaths,
+    indexHtmlTransformer: indexHtmlTransformerPath,
+    ...delegateExecutorOptions
+  } = normalizeOptions(options);
+
+  let dependencies: DependentBuildableProjectNode[];
+
+  if (!buildLibsFromSource) {
+    const { tsConfigPath, dependencies: foundDependencies } =
+      createTmpTsConfigForBuildableLibs(
+        delegateExecutorOptions.tsConfig,
+        context
+      );
+    dependencies = foundDependencies;
+    delegateExecutorOptions.tsConfig = tsConfigPath;
+  }
+
+  const plugins = await loadPlugins(pluginPaths, options.tsConfig);
+  const indexHtmlTransformer = indexHtmlTransformerPath
+    ? await loadIndexHtmlTransformer(indexHtmlTransformerPath, options.tsConfig)
+    : undefined;
+
+  const builderContext = await createBuilderContext(
+    {
+      builderName: '@nx/angular:application',
+      description: 'Build an application.',
+      optionSchema: require('./schema.json'),
+    },
+    context
+  );
+
+  assertBuilderPackageIsInstalled('@angular/build');
+  const { buildApplication } = await import('@angular/build');
+  return yield* buildApplication(delegateExecutorOptions, builderContext, {
+    codePlugins: plugins,
+    indexHtmlTransformer,
+  });
+}