Make symbols of BoringSSL private to gRPC

1 files changed, 32 insertions, 0 deletions

diff --git a/tools/buildgen/plugins/grpc_shadow_boringssl.py b/tools/buildgen/plugins/grpc_shadow_boringssl.py
new file mode 100644
index 0000000000..da4d8c12af
--- /dev/null
+++ b/tools/buildgen/plugins/grpc_shadow_boringssl.py
@@ -0,0 +1,32 @@
+# Copyright 2018 gRPC authors.
+#
+# 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.
+"""Buldigen generate grpc_shadow_boringssl headers
+This script takes the list of symbols from
+src/objective-c/grpc_shadow_boringssl_symbols and populate them in
+settings.grpc_shadow_boringssl_symbols
+"""
+
+
+def mako_plugin(dictionary):
+    with open('src/objective-c/grpc_shadow_boringssl_symbol_list') as f:
+        symbols = f.readlines()
+    # Remove trailing '\n'
+    symbols = [s.strip() for s in symbols]
+    # Remove comments
+    symbols = [s for s in symbols if s[0] != '#']
+    # Remove the commit number
+    del symbols[0]
+
+    settings = dictionary['settings']
+    settings['grpc_shadow_boringssl_symbols'] = symbols