Do the .bazelrc dance.

See bazelbuild/bazel#6319.

tools/bazel.rc → .bazelrc

@@ -1,3 +1,22 @@
+# Copyright (C) 2018 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Bazel RC file for the GAPID build.
+
+# Import any user defined rules.
+try-import %workspace%/user.bazelrc
+
 # Adjusting defaults to favour developer workflows
 build --verbose_failures
 test --test_output=errors

.gitignore

@@ -7,7 +7,7 @@
 
 # Single files
 /.gapid-config
-/.bazelrc
+/user.bazelrc
 /screenshot.png
 
 # General patterns