source: vanHelsing/trunk/src/c2py_resource.py@ 870

Last change on this file since 870 was 853, checked in by hmueller, on Mar 26, 2010 at 11:38:40 AM

helper script added

  • Property svn:executable set to *
File size: 2.7 KB
RevLine 
[853]1#!/usr/bin/env python
2# -*- coding: utf-8 -*-
3"""Helper script to generate resource classes from
4bacula c definitions.
5
6Usage:
7c2py_resource.py BACULA_SRC_PATH
8"""
9# RESOURCE_TYPE has to be either 'dird', 'console', 'filed' or 'stored'
10# CONF_C_FILE is the corresponding c source e.g. 'dird/dird_conf.c'
11#"""
12
13C_CONFS = (
14 ("dird", "dird_conf.c"),
15 ("console", "console_conf.c"),
16 ("filed", "filed_conf.c"),
17 ("stored", "stored_conf.c"),
18 )
19
20
21import sys
22import os
23import re
24from directive import *
25from resource import Resource
26import pprint
27
28RXP_RESOURCE = re.compile(r'''
29 ^(?:static\s+)?RES_ITEM\s+
30 (?P<name>[^[]+)\[\]\s+=\s+\{\s*\n # First line with starting brace
31 (?P<items>.*?) # Non greedy search
32 \n}\s*;
33''', re.M|re.X|re.S)
34
35RXP_ITEM = re.compile(r'''
36 ^\s+{"(?P<name>[^"]+)"\s*,
37 \s*(?P<handler>[^,]+)\s*,
38 \s*(?P<value>[^,]+)\s*,
39 \s*(?P<code>[^,]+)\s*,
40 \s*(?P<flags>[^,]+)\s*,
41 \s*(?P<default_value>[^}]+)},?\s*
42''', re.X)
43
44# handler to python type wrapping
45CONF2TYPE = {
46 'store_bool' : bool,
47 'store_pint32' : int,
48 'store_str' : str,
49 'store_name' : str,
50 'store_dir' : Path,
51 'store_password': Password,
52 'store_time' : Time,
53 'store_bit' : bool,
54 'store_size' : int,
55 'store_acl' : Acl,
56 'store_strname' : str,
57 'store_res' : Res
58 }
59
60def parse_conf_c(filename):
61 """parce a bacula c file for resoure item definitions"""
62 cfg = {}
63 cf = open(filename).read()
64 for block in RXP_RESOURCE.finditer(cf):
65 bl = cfg[block.group("name")] = {}
66 for line in block.group("items").split('\n'):
67 m = RXP_ITEM.search(line)
68 if not m: continue
69 item = m.groupdict()
70 bl[item.pop("name")] = item
71 return cfg
72
73def directives(daemon, conf):
74 res = conf.keys()
75 res.sort()
76 for r in res:
77 items = []
78 for i, v in conf[r].iteritems():
79 name = i
80 if v["flags"] == "ITEM_DEFAULT":
81 default = v["default_value"]
82 else:
83 default = None
84 type = CONF2TYPE.get(v["handler"], v["handler"])
85 required = v["flags"] == "ITEM_REQUIRED"
86 items.append(Item(name, default, type, required))
87 items.sort()
88 print "%s_%s = %s\n" % (daemon, r, pprint.pformat(items, 2))
89 print "\n".join([str(i) for i in items])
90
91if __name__ == "__main__":
92 try:
93 bacula_src = sys.argv[1]
94 except:
95 raise(__doc__)
96
97 rsc = []
98
99 for daemon, conf in C_CONFS:
100 filename = os.path.join(bacula_src, daemon, conf)
101 directives(daemon, parse_conf_c(filename))
102
103
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