Add code generator insertion points to files (#178).

generator/nanopb_generator.py

@@ -812,6 +812,7 @@ class Message:
             result += '    char dummy_field;'
 
         result += '\n'.join([str(f) for f in self.ordered_fields])
+        result += '\n/* @@protoc_insertion_point(struct:%s) */' % self.name
         result += '\n}'
 
         if self.packed:
@@ -1054,6 +1055,8 @@ class ProtoFile:
             noext = os.path.splitext(incfile)[0]
             yield options.genformat % (noext + options.extension + '.h')
             yield '\n'
+            
+        yield '/* @@protoc_insertion_point(includes) */\n'
 
         yield '#if PB_PROTO_HEADER_VERSION != 30\n'
         yield '#error Regenerate this file with the current version of nanopb generator.\n'
@@ -1149,6 +1152,7 @@ class ProtoFile:
         yield '#endif\n'
 
         # End of header
+        yield '/* @@protoc_insertion_point(eof) */\n'
         yield '\n#endif\n'
 
     def generate_source(self, headername, options):
@@ -1161,6 +1165,7 @@ class ProtoFile:
             yield '/* Generated by %s at %s. */\n\n' % (nanopb_version, time.asctime())
         yield options.genformat % (headername)
         yield '\n'
+        yield '/* @@protoc_insertion_point(includes) */\n'
 
         yield '#if PB_PROTO_HEADER_VERSION != 30\n'
         yield '#error Regenerate this file with the current version of nanopb generator.\n'
@@ -1253,6 +1258,7 @@ class ProtoFile:
             yield 'PB_STATIC_ASSERT(sizeof(double) == 8, DOUBLE_MUST_BE_8_BYTES)\n'
 
         yield '\n'
+        yield '/* @@protoc_insertion_point(eof) */\n'
 
 # ---------------------------------------------------------------------------
 #                    Options parsing for the .proto files