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
|
from portage.cache import fs_template
from portage.cache import cache_errors
from portage import os
from portage import _encodings
from portage import _unicode_encode
import codecs
import errno
import stat
import sys
if sys.hexversion >= 0x3000000:
long = int
# store the current key order *here*.
class database(fs_template.FsBased):
autocommits = True
# do not screw with this ordering. _eclasses_ needs to be last
auxdbkey_order=('DEPEND', 'RDEPEND', 'SLOT', 'SRC_URI',
'RESTRICT', 'HOMEPAGE', 'LICENSE', 'DESCRIPTION',
'KEYWORDS', 'IUSE', 'REQUIRED_USE',
'PDEPEND', 'PROVIDE', 'EAPI', 'PROPERTIES', 'DEFINED_PHASES')
def __init__(self, *args, **config):
super(database,self).__init__(*args, **config)
self.location = os.path.join(self.location,
self.label.lstrip(os.path.sep).rstrip(os.path.sep))
if len(self._known_keys) > len(self.auxdbkey_order) + 2:
raise Exception("less ordered keys then auxdbkeys")
if not os.path.exists(self.location):
self._ensure_dirs()
def _getitem(self, cpv):
d = {}
try:
myf = codecs.open(_unicode_encode(os.path.join(self.location, cpv),
encoding=_encodings['fs'], errors='strict'),
mode='r', encoding=_encodings['repo.content'],
errors='replace')
for k,v in zip(self.auxdbkey_order, myf):
d[k] = v.rstrip("\n")
except (OSError, IOError) as e:
if errno.ENOENT == e.errno:
raise KeyError(cpv)
raise cache_errors.CacheCorruption(cpv, e)
try:
d["_mtime_"] = os.fstat(myf.fileno())[stat.ST_MTIME]
except OSError as e:
myf.close()
raise cache_errors.CacheCorruption(cpv, e)
myf.close()
return d
def _setitem(self, cpv, values):
s = cpv.rfind("/")
fp=os.path.join(self.location,cpv[:s],".update.%i.%s" % (os.getpid(), cpv[s+1:]))
try:
myf = codecs.open(_unicode_encode(fp,
encoding=_encodings['fs'], errors='strict'),
mode='w', encoding=_encodings['repo.content'],
errors='backslashreplace')
except (OSError, IOError) as e:
if errno.ENOENT == e.errno:
try:
self._ensure_dirs(cpv)
myf = codecs.open(_unicode_encode(fp,
encoding=_encodings['fs'], errors='strict'),
mode='w', encoding=_encodings['repo.content'],
errors='backslashreplace')
except (OSError, IOError) as e:
raise cache_errors.CacheCorruption(cpv, e)
else:
raise cache_errors.CacheCorruption(cpv, e)
for x in self.auxdbkey_order:
myf.write(values.get(x,"")+"\n")
myf.close()
self._ensure_access(fp, mtime=values["_mtime_"])
#update written. now we move it.
new_fp = os.path.join(self.location,cpv)
try:
os.rename(fp, new_fp)
except (OSError, IOError) as e:
os.remove(fp)
raise cache_errors.CacheCorruption(cpv, e)
def _delitem(self, cpv):
try:
os.remove(os.path.join(self.location,cpv))
except OSError as e:
if errno.ENOENT == e.errno:
raise KeyError(cpv)
else:
raise cache_errors.CacheCorruption(cpv, e)
def __contains__(self, cpv):
return os.path.exists(os.path.join(self.location, cpv))
def __iter__(self):
"""generator for walking the dir struct"""
dirs = [self.location]
len_base = len(self.location)
while len(dirs):
for l in os.listdir(dirs[0]):
if l.endswith(".cpickle"):
continue
p = os.path.join(dirs[0],l)
st = os.lstat(p)
if stat.S_ISDIR(st.st_mode):
dirs.append(p)
continue
yield p[len_base+1:]
dirs.pop(0)
def commit(self): pass
|
GitWeb