Chameleon swagger support
Change-Id: I63b8dc7b31d5e87aa0e5153da302537d90ff733e
diff --git a/protoc_plugins/swagger_gen.py b/protoc_plugins/swagger_gen.py
new file mode 100755
index 0000000..0342d87
--- /dev/null
+++ b/protoc_plugins/swagger_gen.py
@@ -0,0 +1,74 @@
+#!/usr/bin/env python
+#
+# Copyright 2016 the original author or 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.
+#
+import sys
+
+from google.protobuf.compiler import plugin_pb2 as plugin
+from simplejson import dumps
+
+# without this import, http method annotations would not be recognized:
+from google.api import annotations_pb2, http_pb2
+
+from chameleon.protoc_plugins.descriptor_parser import DescriptorParser
+from swagger_template import native_descriptors_to_swagger
+
+
+def generate_code(request, response):
+
+ assert isinstance(request, plugin.CodeGeneratorRequest)
+
+ parser = DescriptorParser()
+ native_data = parser.parse_file_descriptors(request.proto_file,
+ type_tag_name='_type',
+ fold_comments=True)
+ swagger = native_descriptors_to_swagger(native_data)
+
+ # generate the native decoded schema as json
+ # f = response.file.add()
+ # f.name = proto_file.name.replace('.proto', '.native.json')
+ # f.content = dumps(data)
+
+ # generate the real swagger.json file
+ f = response.file.add()
+ f.name = 'swagger.json'
+ f.content = dumps(swagger)
+
+
+if __name__ == '__main__':
+
+ if len(sys.argv) >= 2:
+ # read input from file, to allow troubleshooting
+ with open(sys.argv[1], 'r') as f:
+ data = f.read()
+ else:
+ # read input from stdin
+ data = sys.stdin.read()
+
+ # parse request
+ request = plugin.CodeGeneratorRequest()
+ request.ParseFromString(data)
+
+ # create response object
+ response = plugin.CodeGeneratorResponse()
+
+ # generate the output and the response
+ generate_code(request, response)
+
+ # serialize the response
+ output = response.SerializeToString()
+
+ # write response to stdout
+ sys.stdout.write(output)