1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
|
import os, os.path, re, sys, textwrap, ConfigParser
__all__ = [
'config_parser',
'config_reader',
'config_reader_arch',
]
_marker = object()
class schema_item_boolean(object):
def __call__(self, i):
i = i.strip().lower()
if i in ("true", "1"):
return True
if i in ("false", "0"):
return False
raise Error
class schema_item_list(object):
def __init__(self, type = "\s+"):
self.type = type
def __call__(self, i):
i = i.strip()
if not i:
return []
return [j.strip() for j in re.split(self.type, i)]
class config_reader(dict):
config_name = "defines"
def __init__(self, dirs = []):
self._dirs = dirs
def __getitem__(self, key):
return self.get(key)
def _get_files(self, name):
return [os.path.join(i, name) for i in self._dirs if i]
def _update(self, ret, inputkey):
for key, value in super(config_reader, self).get(tuple(inputkey), {}).iteritems():
ret[key] = value
def get(self, key, default = _marker):
if isinstance(key, basestring):
key = key,
ret = super(config_reader, self).get(tuple(key), default)
if ret == _marker:
raise KeyError, key
return ret
def merge(self, section, *args):
ret = {}
for i in xrange(0, len(args) + 1):
ret.update(self.get(tuple([section] + list(args[:i])), {}))
return ret
def sections(self):
return super(config_reader, self).keys()
class config_reader_arch(config_reader):
schema = {
'arches': schema_item_list(),
'available': schema_item_boolean(),
'configs': schema_item_list(),
'flavours': schema_item_list(),
'initramfs': schema_item_boolean(),
'initramfs-generators': schema_item_list(),
'modules': schema_item_boolean(),
'subarches': schema_item_list(),
'versions': schema_item_list(),
}
def __init__(self, dirs = []):
super(config_reader_arch, self).__init__(dirs)
self._read_base()
def _read_arch(self, arch):
files = self._get_files("%s/%s" % (arch, self.config_name))
config = config_parser(self.schema, files)
subarches = config['base',].get('subarches', [])
flavours = config['base',].get('flavours', [])
for section in iter(config):
real = list(section)
# TODO
if real[-1] in subarches:
real[0:0] = ['base', arch]
elif real[-1] in flavours:
real[0:0] = ['base', arch, 'none']
else:
real[0:0] = [real.pop()]
if real[-1] in flavours:
real[1:1] = [arch, 'none']
else:
real[1:1] = [arch]
real = tuple(real)
s = self.get(real, {})
s.update(config[section])
self[tuple(real)] = s
for subarch in subarches:
if self.has_key(('base', arch, subarch)):
avail = self['base', arch, subarch].get('available', True)
else:
avail = True
if avail:
self._read_subarch(arch, subarch)
base = self['base', arch]
base['subarches'] = subarches
if flavours:
subarches.insert(0, 'none')
del base['flavours']
self['base', arch] = base
self['base', arch, 'none'] = {'flavours': flavours}
for flavour in flavours:
self._read_flavour(arch, 'none', flavour)
def _read_base(self):
files = self._get_files(self.config_name)
config = config_parser(self.schema, files)
arches = config['base',]['arches']
for section in iter(config):
real = list(section)
if real[-1] in arches:
real.insert(0, 'base')
else:
real.insert(0, real.pop())
self[tuple(real)] = config[section]
for arch in arches:
try:
avail = self['base', arch].get('available', True)
except KeyError:
avail = True
if avail:
self._read_arch(arch)
def _read_flavour(self, arch, subarch, flavour):
if not self.has_key(('base', arch, subarch, flavour)):
if subarch == 'none':
import warnings
warnings.warn('No config entry for flavour %s, subarch none, arch %s' % (flavour, arch), DeprecationWarning)
self['base', arch, subarch, flavour] = {}
def _read_subarch(self, arch, subarch):
files = self._get_files("%s/%s/%s" % (arch, subarch, self.config_name))
config = config_parser(self.schema, files)
flavours = config['base',].get('flavours', [])
for section in iter(config):
real = list(section)
if real[-1] in flavours:
real[0:0] = ['base', arch, subarch]
else:
real[0:0] = [real.pop(), arch, subarch]
real = tuple(real)
s = self.get(real, {})
s.update(config[section])
self[tuple(real)] = s
for flavour in flavours:
self._read_flavour(arch, subarch, flavour)
def merge(self, section, arch = None, subarch = None, flavour = None):
ret = {}
ret.update(self.get((section,), {}))
if arch:
ret.update(self.get((section, arch), {}))
if flavour and subarch and subarch != 'none':
ret.update(self.get((section, arch, 'none', flavour), {}))
if subarch:
ret.update(self.get((section, arch, subarch), {}))
if flavour:
ret.update(self.get((section, arch, subarch, flavour), {}))
return ret
class config_parser(object):
__slots__ = 'configs', 'schema'
def __init__(self, schema, files):
self.configs = []
self.schema = schema
for file in files:
config = ConfigParser.ConfigParser()
config.read(file)
self.configs.append(config)
def __getitem__(self, key):
return self.items(key)
def __iter__(self):
return iter(self.sections())
def items(self, section, var = {}):
ret = {}
section = '_'.join(section)
exceptions = []
for config in self.configs:
try:
items = config.items(section)
except ConfigParser.NoSectionError, e:
exceptions.append(e)
else:
for key, value in items:
try:
value = self.schema[key](value)
except KeyError: pass
ret[key] = value
if len(exceptions) == len(self.configs):
raise exceptions[0]
return ret
def sections(self):
sections = []
for config in self.configs:
for section in config.sections():
section = tuple(section.split('_'))
if section not in sections:
sections.append(section)
return sections
if __name__ == '__main__':
import sys
config = config_reader()
sections = config.sections()
sections.sort()
for section in sections:
print "[%s]" % (section,)
items = config[section]
items_keys = items.keys()
items_keys.sort()
for item in items:
print "%s: %s" % (item, items[item])
print
|
