3 # Copyright 2017 gRPC authors.
5 # Licensed under the Apache License, Version 2.0 (the "License");
6 # you may not use this file except in compliance with the License.
7 # You may obtain a copy of the License at
9 # http://www.apache.org/licenses/LICENSE-2.0
11 # Unless required by applicable law or agreed to in writing, software
12 # distributed under the License is distributed on an "AS IS" BASIS,
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 # See the License for the specific language governing permissions and
15 # limitations under the License.
17 from __future__ import print_function
23 os.chdir(os.path.join(os.path.dirname(sys.argv[0]), '../../..'))
27 pattern = re.compile("GRPC_TRACER_INITIALIZER\((true|false), \"(.*)\"\)")
28 for root, dirs, files in os.walk('src/core'):
29 for filename in files:
30 path = os.path.join(root, filename)
31 if os.path.splitext(path)[1] != '.c': continue
34 for o in pattern.findall(text):
37 with open('doc/environment_variables.md') as f:
43 "ERROR: tracer \"%s\" is not mentioned in doc/environment_variables.md"