1 files changed, 29 insertions, 26 deletions
diff --git a/tools/buildgen/plugins/list_api.py b/tools/buildgen/plugins/list_api.py
index bed98dafe3..f7ecb97666 100755
--- a/tools/buildgen/plugins/list_api.py
+++ b/tools/buildgen/plugins/list_api.py
@@ -21,44 +21,47 @@ import re
 import sys
 import yaml
 
-
 _RE_API = r'(?:GPRAPI|GRPCAPI|CENSUSAPI)([^;]*);'
 
 
 def list_c_apis(filenames):
-  for filename in filenames:
-    with open(filename, 'r') as f:
-      text = f.read()
-    for m in re.finditer(_RE_API, text):
-      api_declaration = re.sub('[ \r\n\t]+', ' ', m.group(1))
-      type_and_name, args_and_close = api_declaration.split('(', 1)
-      args = args_and_close[:args_and_close.rfind(')')].strip()
-      last_space = type_and_name.rfind(' ')
-      last_star = type_and_name.rfind('*')
-      type_end = max(last_space, last_star)
-      return_type = type_and_name[0:type_end+1].strip()
-      name = type_and_name[type_end+1:].strip()
-      yield {'return_type': return_type, 'name': name, 'arguments': args, 'header': filename}
+    for filename in filenames:
+        with open(filename, 'r') as f:
+            text = f.read()
+        for m in re.finditer(_RE_API, text):
+            api_declaration = re.sub('[ \r\n\t]+', ' ', m.group(1))
+            type_and_name, args_and_close = api_declaration.split('(', 1)
+            args = args_and_close[:args_and_close.rfind(')')].strip()
+            last_space = type_and_name.rfind(' ')
+            last_star = type_and_name.rfind('*')
+            type_end = max(last_space, last_star)
+            return_type = type_and_name[0:type_end + 1].strip()
+            name = type_and_name[type_end + 1:].strip()
+            yield {
+                'return_type': return_type,
+                'name': name,
+                'arguments': args,
+                'header': filename
+            }
 
 
 def headers_under(directory):
-  for root, dirnames, filenames in os.walk(directory):
-    for filename in fnmatch.filter(filenames, '*.h'):
-      yield os.path.join(root, filename)
+    for root, dirnames, filenames in os.walk(directory):
+        for filename in fnmatch.filter(filenames, '*.h'):
+            yield os.path.join(root, filename)
 
 
 def mako_plugin(dictionary):
-  apis = []
-  headers = []
+    apis = []
+    headers = []
 
-  for lib in dictionary['libs']:
-    if lib['name'] in ['grpc', 'gpr']:
-      headers.extend(lib['public_headers'])
+    for lib in dictionary['libs']:
+        if lib['name'] in ['grpc', 'gpr']:
+            headers.extend(lib['public_headers'])
 
-  apis.extend(list_c_apis(sorted(set(headers))))
-  dictionary['c_apis'] = apis
+    apis.extend(list_c_apis(sorted(set(headers))))
+    dictionary['c_apis'] = apis
 
 
 if __name__ == '__main__':
-  print yaml.dump([api for api in list_c_apis(headers_under('include/grpc'))])
-
+    print yaml.dump([api for api in list_c_apis(headers_under('include/grpc'))])