Initial checkin of gRPC to third_party/

third_party/grpc/tools/buildgen/plugins/list_api.py

-#!/usr/bin/env python
-# Copyright (C) 2013 Google Inc. All rights reserved.
+#!/usr/bin/env python2.7
+
+# Copyright 2016, Google Inc.
+# All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 # copyright notice, this list of conditions and the following disclaimer
 # in the documentation and/or other materials provided with the
 # distribution.
 #     * Neither the name of Google Inc. nor the names of its
 # contributors may be used to endorse or promote products derived from
 # this software without specific prior written permission.
 #
 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-import os.path
+import collections
+import fnmatch
+import os
+import re
 import sys
-
-import in_generator
-import make_runtime_features
-import name_utilities
-import template_expander
+import yaml
 
 
-# We want exactly the same parsing as RuntimeFeatureWriter
-# but generate different files.
-class InternalRuntimeFlagsWriter(make_runtime_features.RuntimeFeatureWriter):
-    class_name = 'InternalRuntimeFlags'
+_RE_API = r'(?:GPRAPI|GRPCAPI|CENSUSAPI)([^;]*);'
 
-    def __init__(self, in_file_path):
-        super(InternalRuntimeFlagsWriter, self).__init__(in_file_path)
-        self._outputs = {(self.class_name + '.idl'): self.generate_idl,
-                         (self.class_name + '.h'): self.generate_header,
-                        }
 
-    @template_expander.use_jinja(class_name + '.idl.tmpl')
-    def generate_idl(self):
-        return {
-            'features': self._features,
-            'standard_features': self._standard_features,
-        }
+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}
 
-    @template_expander.use_jinja(class_name + '.h.tmpl')
-    def generate_header(self):
-        return {
-            'features': self._features,
-            'feature_sets': self._feature_sets(),
-            'standard_features': self._standard_features,
-        }
+
+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)
+
+
+def mako_plugin(dictionary):
+  apis = []
+
+#  for lib in dictionary['libs']:
+#    if lib['name'] == 'grpc':
+#      apis.extend(list_c_apis(lib['public_headers']))
+  apis.extend(list_c_apis(sorted(headers_under('include/grpc'))))
+
+  dictionary['c_apis'] = apis
 
 
 if __name__ == '__main__':
-    in_generator.Maker(InternalRuntimeFlagsWriter).main(sys.argv)
+  print yaml.dump([api for api in list_c_apis(headers_under('include/grpc'))])
+