build: mark external only bazel rules

(cherry picked from commit 1e21440)

packages/angular/cli/BUILD.bazel

@@ -4,9 +4,12 @@
 # found in the LICENSE file at https://angular.io/license
 
 load("@npm//@bazel/jasmine:index.bzl", "jasmine_node_test")
+load("//tools:defaults.bzl", "pkg_npm", "ts_library")
+
+# @external_begin
 load("//tools:ts_json_schema.bzl", "ts_json_schema")
 load("//tools:ng_cli_schema_generator.bzl", "cli_json_schema")
-load("//tools:defaults.bzl", "pkg_npm", "ts_library")
+# @external_end
 
 licenses(["notice"])  # MIT
 
@@ -91,6 +94,7 @@ ts_library(
     ],
 )
 
+# @external_begin
 CLI_SCHEMA_DATA = [
     "//packages/angular_devkit/build_angular:src/builders/app-shell/schema.json",
     "//packages/angular_devkit/build_angular:src/builders/browser/schema.json",
@@ -280,6 +284,7 @@ ts_json_schema(
     name = "update_schematic_schema",
     src = "src/commands/update/schematic/schema.json",
 )
+# @external_end
 
 ts_library(
     name = "angular-cli_test_lib",
@@ -307,6 +312,7 @@ jasmine_node_test(
     srcs = [":angular-cli_test_lib"],
 )
 
+# @external_begin
 genrule(
     name = "license",
     srcs = ["//:LICENSE"],
@@ -333,3 +339,4 @@ pkg_npm(
         ":utilities/INITIAL_COMMIT_MESSAGE.txt",
     ],
 )
+# @external_end

packages/angular_devkit/architect/BUILD.bazel

@@ -5,13 +5,17 @@
 
 load("@npm//@bazel/jasmine:index.bzl", "jasmine_node_test")
 load("//tools:defaults.bzl", "pkg_npm", "ts_library")
+
+# @external_begin
 load("//tools:ts_json_schema.bzl", "ts_json_schema")
 load("@npm//@angular/dev-infra-private/bazel/api-golden:index.bzl", "api_golden_test_npm_package")
+# @external_end
 
 licenses(["notice"])  # MIT
 
 package(default_visibility = ["//visibility:public"])
 
+# @external_begin
 ts_json_schema(
     name = "builder_input_schema",
     src = "src/input-schema.json",
@@ -36,6 +40,7 @@ ts_json_schema(
     name = "operator_schema",
     src = "builders/operator-schema.json",
 )
+# @external_end
 
 ts_library(
     name = "architect",
@@ -90,6 +95,7 @@ jasmine_node_test(
     srcs = [":architect_test_lib"],
 )
 
+# @external_begin
 genrule(
     name = "license",
     srcs = ["//:LICENSE"],
@@ -120,3 +126,4 @@ api_golden_test_npm_package(
     golden_dir = "angular_cli/goldens/public-api/angular_devkit/architect",
     npm_package = "angular_cli/packages/angular_devkit/architect/npm_package",
 )
+# @external_end

packages/angular_devkit/core/BUILD.bazel

@@ -1,6 +1,9 @@
 load("@npm//@bazel/jasmine:index.bzl", "jasmine_node_test")
 load("//tools:defaults.bzl", "pkg_npm", "ts_library")
+
+# @external_begin
 load("@npm//@angular/dev-infra-private/bazel/api-golden:index.bzl", "api_golden_test_npm_package")
+# @external_end
 
 # Copyright Google Inc. All Rights Reserved.
 #
@@ -76,6 +79,7 @@ jasmine_node_test(
     ],
 )
 
+# @external_begin
 genrule(
     name = "license",
     srcs = ["//:LICENSE"],
@@ -107,3 +111,4 @@ api_golden_test_npm_package(
     npm_package = "angular_cli/packages/angular_devkit/core/npm_package",
     types = ["@npm//@types/node"],
 )
+# @external_end

packages/angular_devkit/schematics/BUILD.bazel

@@ -1,6 +1,9 @@
 load("@npm//@bazel/jasmine:index.bzl", "jasmine_node_test")
 load("//tools:defaults.bzl", "pkg_npm", "ts_library")
+
+# @external_begin
 load("@npm//@angular/dev-infra-private/bazel/api-golden:index.bzl", "api_golden_test_npm_package")
+# @external_end
 
 # Copyright Google Inc. All Rights Reserved.
 #
@@ -64,6 +67,7 @@ jasmine_node_test(
     ],
 )
 
+# @external_begin
 genrule(
     name = "license",
     srcs = ["//:LICENSE"],
@@ -99,3 +103,4 @@ api_golden_test_npm_package(
     npm_package = "angular_cli/packages/angular_devkit/schematics/npm_package",
     types = ["@npm//@types/node"],
 )
+# @external_end