gen_def.py revision 262339 
1#!/usr/bin/env python
2#
3# gen_def.py :  Generate the .DEF file for Windows builds
4#
5# ====================================================================
6#   Copyright 2002-2010 Justin Erenkrantz and Greg Stein
7#
8#   Licensed under the Apache License, Version 2.0 (the "License");
9#   you may not use this file except in compliance with the License.
10#   You may obtain a copy of the License at
11#
12#        http://www.apache.org/licenses/LICENSE-2.0
13#
14#   Unless required by applicable law or agreed to in writing, software
15#   distributed under the License is distributed on an "AS IS" BASIS,
16#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17#   See the License for the specific language governing permissions and
18#   limitations under the License.
19# ====================================================================
20#
21#
22# Typically, this script is used like:
23#
24#    C:\PATH> python build/gen_def.py serf.h serf_bucket_types.h serf_bucket_util.h > build/serf.def
25#
26
27import re
28import sys
29
30# This regex parses function declarations that look like:
31#
32#    return_type serf_func1(...
33#    return_type *serf_func2(...
34#
35# Where return_type is a combination of words and "*" each separated by a
36# SINGLE space. If the function returns a pointer type (like serf_func2),
37# then a space may exist between the "*" and the function name. Thus,
38# a more complicated example might be:
39#    const type * const * serf_func3(...
40#
41_funcs = re.compile(r'^(?:(?:\w+|\*) )+\*?(serf_[a-z][a-zA-Z_0-9]*)\(',
42                    re.MULTILINE)
43
44# This regex parses the bucket type definitions which look like:
45#
46#    extern const serf_bucket_type_t serf_bucket_type_FOO;
47#
48_types = re.compile(r'^extern const serf_bucket_type_t (serf_[a-z_]*);',
49                    re.MULTILINE)
50
51
52def extract_exports(fname):
53  content = open(fname).read()
54  exports = [ ]
55  for name in _funcs.findall(content):
56    exports.append(name)
57  for name in _types.findall(content):
58    exports.append(name)
59  return exports
60
61# Blacklist the serf v2 API for now
62blacklist = ['serf_connection_switch_protocol',
63             'serf_http_protocol_create',
64             'serf_http_request_create',
65             'serf_https_protocol_create']
66
67if __name__ == '__main__':
68  # run the extraction over each file mentioned
69  import sys
70  print("EXPORTS")
71
72  for fname in sys.argv[1:]:
73    funclist = extract_exports(fname)
74    funclist = set(funclist) - set(blacklist)
75    for func in funclist:
76      print(func)
77