build: add a ng_package rule for @angular/router (#22628)

PR Close #22628

packages/bazel/BUILD.bazel

@@ -9,15 +9,15 @@ genrule(
 npm_package(
     name = "npm_package",
     srcs = [
-        "package.json",
         "index.bzl",
+        "package.json",
         "//packages/bazel/src:package_assets",
     ],
-    deps = [":workspace"],
     # Re-host //packages/bazel/ which is just // in the public distro
     replacements = {
         "//packages/bazel/": "//",
         "angular/packages/bazel/": "angular/",
     },
     stamp_data = "//tools:stamp_data",
+    deps = [":workspace"],
 )

packages/bazel/src/ng_package/ng_package.bzl

@@ -18,17 +18,38 @@ WELL_KNOWN_GLOBALS = {
     "@angular/core": "ng.core",
     "@angular/common": "ng.common",
     "@angular/platform-browser": "ng.platformBrowser",
-    "rxjs/Observable": "Rx",
-    "rxjs/Observer": "Rx",
-    "rxjs/Subject": "Rx",
-    "rxjs/Subscription": "Rx",
-    "rxjs/observable/merge": "Rx.Observable",
-    "rxjs/observable/of": "Rx.Observable.prototype",
-    "rxjs/operator/concatMap": "Rx.Observable.prototype",
-    "rxjs/operator/filter": "Rx.Observable.prototype",
-    "rxjs/operator/map": "Rx.Observable.prototype",
-    "rxjs/operator/share": "Rx.Observable.prototype",
 }
+WELL_KNOWN_GLOBALS.update({"rxjs/%s" % s: "Rx" for s in [
+    "BehaviorSubject",
+    "Observable",
+    "Observer",
+    "Subject",
+    "Subscription",
+    "util/EmptyError",
+]})
+WELL_KNOWN_GLOBALS.update({"rxjs/observable/%s" % s: "Rx.Observable" for s in [
+    "from",
+    "fromPromise",
+    "forkJoin",
+    "merge",
+    "of",
+]})
+WELL_KNOWN_GLOBALS.update({"rxjs/operator/%s" % s: "Rx.Observable.prototype" for s in [
+    "catch",
+    "concatAll",
+    "concatMap",
+    "every",
+    "first",
+    "filter",
+    "last",
+    "map",
+    "mergeAll",
+    "mergeMap",
+    "reduce",
+    "share",
+    "toPromise",
+]})
+
 
 def _rollup(ctx, rollup_config, entry_point, inputs, js_output, format = "es"):
   map_output = ctx.actions.declare_file(js_output.basename + ".map", sibling = js_output)
@@ -102,7 +123,7 @@ def _ng_package_impl(ctx):
   esm5 = []
   bundles = []
 
-  for entry_point in [''] + ctx.attr.secondary_entry_points:
+  for entry_point in [""] + ctx.attr.secondary_entry_points:
     es2015_entry_point = "/".join([p for p in [
         ctx.bin_dir.path,
         ctx.label.package,

packages/router/BUILD.bazel

@@ -1,6 +1,6 @@
 package(default_visibility = ["//visibility:public"])
 
-load("//tools:defaults.bzl", "ng_module")
+load("//tools:defaults.bzl", "ng_module", "ng_package")
 
 ng_module(
     name = "router",
@@ -19,3 +19,18 @@ ng_module(
         "@rxjs",
     ],
 )
+
+ng_package(
+    name = "npm_package",
+    srcs = ["package.json"],
+    entry_point = "packages/router/index.js",
+    secondary_entry_points = [
+        "testing",
+        "upgrade",
+    ],
+    deps = [
+        ":router",
+        "//packages/router/testing",
+        "//packages/router/upgrade",
+    ],
+)

packages/router/testing/BUILD.bazel

@@ -4,7 +4,6 @@ load("//tools:defaults.bzl", "ng_module")
 
 ng_module(
     name = "testing",
-    testonly = 1,
     srcs = glob(["**/*.ts"]),
     module_name = "@angular/router/testing",
     deps = [

packages/router/upgrade/BUILD.bazel

@@ -0,0 +1,13 @@
+package(default_visibility = ["//visibility:public"])
+
+load("//tools:defaults.bzl", "ng_module")
+
+ng_module(
+    name = "upgrade",
+    srcs = glob(["**/*.ts"]),
+    module_name = "@angular/router/upgrade",
+    deps = [
+        "//packages/core",
+        "//packages/router",
+    ],
+)