Initial checkin of gRPC to third_party/

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

-# Copyright 2011, Google Inc.
+# Copyright 2015, 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.
 
+"""Buildgen .proto files list plugin.
 
-import logging
-_GOODBYE_MESSAGE = u'Goodbye'
+This parses the list of targets from the yaml build file, and creates
+a list called "protos" that contains all of the proto file names.
+
+"""
 
 
-def web_socket_do_extra_handshake(request):
-    pass  # Always accept.
+import re
 
 
-def web_socket_transfer_data(request):
-    while True:
-        line = request.ws_stream.receive_message()
-        if line is None:
-            return
-        if isinstance(line, unicode):
-            request.ws_stream.send_message(line, binary=False)
-            if line == _GOODBYE_MESSAGE:
-                return
-        else:
-            request.ws_stream.send_message(line, binary=True)
+def mako_plugin(dictionary):
+  """The exported plugin code for list_protos.
 
+  Some projects generators may want to get the full list of unique .proto files
+  that are being included in a project. This code extracts all files referenced
+  in any library or target that ends in .proto, and builds and exports that as
+  a list called "protos".
 
-def web_socket_passive_closing_handshake(request):
-    return request.ws_close_code, request.ws_close_reason
+  """
+
+  libs = dictionary.get('libs', [])
+  targets = dictionary.get('targets', [])
+
+  proto_re = re.compile('(.*)\\.proto')
+
+  protos = set()
+  for lib in libs:
+    for src in lib.get('src', []):
+      m = proto_re.match(src)
+      if m:
+        protos.add(m.group(1))
+  for tgt in targets:
+    for src in tgt.get('src', []):
+      m = proto_re.match(src)
+      if m:
+        protos.add(m.group(1))
+
+  protos = sorted(protos)
+
+  dictionary['protos'] = protos