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
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
|
# ex:ts=4:sw=4:sts=4:et
# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
"""
BitBake Smart Dictionary Implementation
Functions for interacting with the data structure used by the
BitBake build tools.
"""
# Copyright (C) 2003, 2004 Chris Larson
# Copyright (C) 2004, 2005 Seb Frankengul
# Copyright (C) 2005, 2006 Holger Hans Peter Freyther
# Copyright (C) 2005 Uli Luckas
# Copyright (C) 2005 ROAD GmbH
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
# Based on functions from the base bb module, Copyright 2003 Holger Schurig
import copy, os, re, sys, time, types
import bb
from bb import utils, methodpool
from COW import COWDictBase
from new import classobj
__setvar_keyword__ = ["_append","_prepend"]
__setvar_regexp__ = re.compile('(?P<base>.*?)(?P<keyword>_append|_prepend)(_(?P<add>.*))?')
__expand_var_regexp__ = re.compile(r"\${[^{}]+}")
__expand_python_regexp__ = re.compile(r"\${@.+?}")
class DataSmart:
def __init__(self, special = COWDictBase.copy(), seen = COWDictBase.copy() ):
self.dict = {}
# cookie monster tribute
self._special_values = special
self._seen_overrides = seen
self.expand_cache = {}
self.expand_context = {
"os": os,
"bb": bb,
"time": time,
"d": self
}
def expand(self,s, varname):
def var_sub(match):
key = match.group()[2:-1]
if varname and key:
if varname == key:
raise Exception("variable %s references itself!" % varname)
var = self.getVar(key, 1)
if var is not None:
return var
else:
return match.group()
def python_sub(match):
code = match.group()[3:-1]
codeobj = compile(code.strip(), varname or "<expansion>", "eval")
s = eval(codeobj, self.expand_context)
if type(s) == types.IntType: s = str(s)
return s
if type(s) is not types.StringType: # sanity check
return s
if varname and varname in self.expand_cache:
return self.expand_cache[varname]
while s.find('${') != -1:
olds = s
try:
s = __expand_var_regexp__.sub(var_sub, s)
s = __expand_python_regexp__.sub(python_sub, s)
if s == olds: break
if type(s) is not types.StringType: # sanity check
bb.msg.error(bb.msg.domain.Data, 'expansion of %s returned non-string %s' % (olds, s))
except KeyboardInterrupt:
raise
except:
bb.msg.note(1, bb.msg.domain.Data, "%s:%s while evaluating:\n%s" % (sys.exc_info()[0], sys.exc_info()[1], s))
raise
if varname:
self.expand_cache[varname] = s
return s
def initVar(self, var):
self.expand_cache = {}
if not var in self.dict:
self.dict[var] = {}
def _findVar(self,var):
_dest = self.dict
while (_dest and var not in _dest):
if not "_data" in _dest:
_dest = None
break
_dest = _dest["_data"]
if _dest and var in _dest:
return _dest[var]
return None
def _makeShadowCopy(self, var):
if var in self.dict:
return
local_var = self._findVar(var)
if local_var:
self.dict[var] = copy.copy(local_var)
else:
self.initVar(var)
def setVar(self,var,value):
self.expand_cache = {}
match = __setvar_regexp__.match(var)
if match and match.group("keyword") in __setvar_keyword__:
base = match.group('base')
keyword = match.group("keyword")
override = match.group('add')
l = self.getVarFlag(base, keyword) or []
l.append([value, override])
self.setVarFlag(base, keyword, l)
# todo make sure keyword is not __doc__ or __module__
# pay the cookie monster
try:
self._special_values[keyword].add( base )
except:
self._special_values[keyword] = set()
self._special_values[keyword].add( base )
return
if not var in self.dict:
self._makeShadowCopy(var)
# more cookies for the cookie monster
if '_' in var:
override = var[var.rfind('_')+1:]
if not self._seen_overrides.has_key(override):
self._seen_overrides[override] = set()
self._seen_overrides[override].add( var )
# setting var
self.dict[var]["content"] = value
def getVar(self,var,exp):
value = self.getVarFlag(var,"content")
if exp and value:
return self.expand(value,var)
return value
def renameVar(self, key, newkey):
"""
Rename the variable key to newkey
"""
val = self.getVar(key, 0)
if val is not None:
self.setVar(newkey, val)
for i in ('_append', '_prepend'):
src = self.getVarFlag(key, i)
if src is None:
continue
dest = self.getVarFlag(newkey, i) or []
dest.extend(src)
self.setVarFlag(newkey, i, dest)
if self._special_values.has_key(i) and key in self._special_values[i]:
self._special_values[i].remove(key)
self._special_values[i].add(newkey)
self.delVar(key)
def delVar(self,var):
self.expand_cache = {}
self.dict[var] = {}
def setVarFlag(self,var,flag,flagvalue):
if not var in self.dict:
self._makeShadowCopy(var)
self.dict[var][flag] = flagvalue
def getVarFlag(self,var,flag):
local_var = self._findVar(var)
if local_var:
if flag in local_var:
return copy.copy(local_var[flag])
return None
def delVarFlag(self,var,flag):
local_var = self._findVar(var)
if not local_var:
return
if not var in self.dict:
self._makeShadowCopy(var)
if var in self.dict and flag in self.dict[var]:
del self.dict[var][flag]
def setVarFlags(self,var,flags):
if not var in self.dict:
self._makeShadowCopy(var)
for i in flags:
if i == "content":
continue
self.dict[var][i] = flags[i]
def getVarFlags(self,var):
local_var = self._findVar(var)
flags = {}
if local_var:
for i in local_var:
if i == "content":
continue
flags[i] = local_var[i]
if len(flags) == 0:
return None
return flags
def delVarFlags(self,var):
if not var in self.dict:
self._makeShadowCopy(var)
if var in self.dict:
content = None
# try to save the content
if "content" in self.dict[var]:
content = self.dict[var]["content"]
self.dict[var] = {}
self.dict[var]["content"] = content
else:
del self.dict[var]
def createCopy(self):
"""
Create a copy of self by setting _data to self
"""
# we really want this to be a DataSmart...
data = DataSmart(seen=self._seen_overrides.copy(), special=self._special_values.copy())
data.dict["_data"] = self.dict
return data
# Dictionary Methods
def keys(self):
def _keys(d, mykey):
if "_data" in d:
_keys(d["_data"],mykey)
for key in d.keys():
if key != "_data":
mykey[key] = None
keytab = {}
_keys(self.dict,keytab)
return keytab.keys()
def __getitem__(self,item):
#print "Warning deprecated"
return self.getVar(item, False)
def __setitem__(self,var,data):
#print "Warning deprecated"
self.setVar(var,data)
|
