build: use bazel version from node modules (#26691)

* No longer depends on a custom CircleCI docker image that comes with Bazel pre-installed. Since Bazel is now available through NPM, we should be able to use the version from `@bazel/bazel` in order to enforce a consistent environment on CI and locally.
* This also reduces the amount of packages that need to be published (ngcontainer is removed)

PR Close #26691

tools/bazel_stamp_vars.sh

@@ -22,7 +22,7 @@ if [[ "$(git tag)" == "" ]]; then
   echo "Either fetch the tags:"
   echo "       git fetch git@github.com:angular/angular.git --tags"
   echo "or build without stamping by giving an empty workspace_status_command:"
-  echo "       bazel build --workspace_status_command= ..."
+  echo "       yarn bazel build --workspace_status_command= ..."
   echo ""
 fi
 

tools/defaults.bzl

@@ -164,7 +164,7 @@ def ts_web_test_suite(bootstrap = [], deps = [], **kwargs):
         deps = local_deps,
         # Run unit tests on local Chromium by default.
         # You can exclude tests based on tags, e.g. to skip Firefox testing,
-        #   `bazel test --test_tag_filters=-browser:firefox-local [targets]`
+        #   `yarn bazel test --test_tag_filters=-browser:firefox-local [targets]`
         browsers = [
             "@io_bazel_rules_webtesting//browsers:chromium-local",
             # Don't test on local Firefox by default, for faster builds.

tools/ngcontainer/README.md

@@ -2,6 +2,9 @@
 
 This docker container provides everything needed to build and test Angular applications:
 
+**Note**: This docker image will be no longer actively updated. Consider using other Docker 
+images that come with Node installed. Bazel can be installed through the `@bazel/bazel` NPM package.
+
 - node 10.9.0
 - npm 6.2.0
 - yarn 1.9.2

tools/symbol-extractor/cli.ts

@@ -7,7 +7,6 @@
  */
 
 import * as fs from 'fs';
-import * as path from 'path';
 import {SymbolExtractor} from './symbol_extractor';
 
 if (require.main === module) {
@@ -44,7 +43,7 @@ function main(argv: [string, string, string] | [string, string]): boolean {
       const defineFlag = (compile !== 'legacy') ? `--define=compile=${compile} ` : '';
       console.error(`TEST FAILED!`);
       console.error(`  To update the golden file run: `);
-      console.error(`    bazel run ${defineFlag}${process.env['BAZEL_TARGET']}.accept`);
+      console.error(`    yarn bazel run ${defineFlag}${process.env['BAZEL_TARGET']}.accept`);
     }
   }
   return passed;

tools/ts-api-guardian/README.md

@@ -23,8 +23,8 @@ ts-api-guardian --verifyDir api_guard [--rootDir .] core/index.d.ts core/testing
 Build and test this library:
 
 ```sh
-$ bazel run //:install
-$ bazel test //tools/ts-api-guardian:all
+$ yarn bazel run //:install
+$ yarn bazel test //tools/ts-api-guardian:all
 ```
 
 Publish to NPM:
@@ -32,5 +32,5 @@ Publish to NPM:
 ```sh
 $ npm whoami # should be logged in as angular
 $ grep version tools/ts-api-guardian/package.json # advance as needed
-$ bazel run //tools/ts-api-guardian:ts-api-guardian.publish
+$ yarn bazel run //tools/ts-api-guardian:ts-api-guardian.publish
 ```