build: use vendored yarn under Bazel (#28839)

PR Close #28839

.circleci/env.sh

@@ -65,7 +65,7 @@ setPublicVar SAUCE_READY_FILE_TIMEOUT 120
 ####################################################################################################
 # Define our own yarn command for CircleCI.
 ####################################################################################################
-echo "function yarn () { /usr/bin/env node $projectDir/third_party/github.com/yarnpkg/yarn/releases/yarn-1.13.0.js \"\$@\"; }" >> $BASH_ENV;
+echo "function yarn () { /usr/bin/env node $projectDir/third_party/github.com/yarnpkg/yarn/releases/download/v1.13.0/bin/yarn.js \"\$@\"; }" >> $BASH_ENV;
 echo "export -f yarn;" >> $BASH_ENV;
 
 

WORKSPACE

@@ -48,7 +48,7 @@ node_repositories(
     node_version = "10.9.0",
     package_json = ["//:package.json"],
     preserve_symlinks = True,
-    yarn_version = "1.12.1",
+    vendored_yarn = "@angular//third_party/github.com/yarnpkg/yarn/releases/download:v1.13.0",
 )
 
 # Setup the angular toolchain which installs npm dependencies into @ngdeps

third_party/github.com/yarnpkg/yarn/releases/BUILD.bazel

@@ -1,2 +1,2 @@
-# Fetched from https://github.com/yarnpkg/yarn/releases/download/v1.13.0/yarn-1.13.0.js
+# Fetched from https://github.com/yarnpkg/yarn/releases/download/v1.13.0/yarn-v1.13.0.tar.gz
 licenses(["notice"])