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
|
# -*- encoding: utf-8 -*-
# Software Management Providers
#
# Copyright (C) 2012-2013 Red Hat, Inc. All rights reserved.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
#
# Authors: Michal Minar <miminar@redhat.com>
#
"""
Module holding an abstraction for YUM repository.
"""
from datetime import datetime
import logging
import yum
import yum.Errors
# maps names of Repository properties to their corresponding property
# names in YumRepository object
PROPERTY_NAME_MAP = {
"repoid" : "id",
"base_urls" : "baseurl",
"config_file" : "repofile",
"cost" : "cost",
"enabled" : "enabled",
"gpg_check" : "gpgcheck",
"last_edit" : "repo_config_age",
"metalink" : "metalink",
"mirror_list" : "mirrorlist",
"mirror_urls" : "mirrorurls",
"name" : "name",
"pkg_dir" : "pkgdir",
"ready" : "ready",
"repo_gpg_check" : "repo_gpgcheck",
"timeout" : "timeout"
}
def get_prop_from_yum_repo(repo, prop_name):
"""
@param prop_name is one Repository properties
@return value of property from object of YumRepository
"""
if not isinstance(repo, yum.yumRepo.YumRepository):
raise TypeError("repo must be in instance of yum.yumRepo.YumRepository")
if prop_name in PROPERTY_NAME_MAP:
val = getattr(repo, PROPERTY_NAME_MAP[prop_name])
if prop_name == "last_edit":
val = datetime.fromtimestamp(val)
elif prop_name == "mirror_urls" and not repo.mirrorlist:
val = None
elif prop_name == "ready":
val = val()
elif prop_name in {"arch", "basearch", "releasever"}:
val = repo.yumvar[prop_name]
elif prop_name in {"revision", "last_update"}:
if repo.enabled and repo.repoXML:
md = repo.repoXML
if prop_name == "last_update":
val = datetime.fromtimestamp(md.timestamp)
elif prop_name == "revision":
val = long(md.revision)
else:
val = getattr(repo.repoXML, prop_name)
else:
val = None
elif prop_name == "pkg_count":
# this needs populated sack: ydb.repos.populateSack(repo.id)
val = len(repo.sack)
else:
raise ValueError('Unknown repository property: "%s"' % prop_name)
return val
class Repository(object):
"""
Container for repository metadata. It represents yum repository.
It's supposed to be passed from YumWorker to YumDB client and
vice-versa.
"""
__slots__ = (
"objid", # [int] id of python object on server process
"repoid", # [string] repository id name
# (name of config file)
"arch", # [string] architecture of packages
"basearch", # [string] base system architecture
"base_urls", # [list] base urls as strings
#"cache",
#"cache_dir",
"name", # [string] repository descriptive name
"config_file", # [string] file path to corresponding
# config file
"cost", # [int] cost of repository
"enabled", # [boolean] whether repo is enabled
"gpg_check", # [boolean] whether to check gpg signature
#"metadata_expire", # how long are metadata considered valid
"last_edit", # datetime of last config modification
"last_update", # datetime of last change of repository
# on server
"metalink", # Specifies a URL to a metalink file for the
# repomd.xml, a list of mirrors for the entire repository are
# generated by converting the mirrors for the repomd.xml file to a
# baseurl.
"mirror_list", # url of mirrorlist, or None
"mirror_urls", # list of urls obtained from mirrorlist or None
#"persist_dir", #
#"pkg_count", # number of packages in directory
"pkg_dir", # directory with packages
#"proxy", # boolean saying whether this is a proxy
"ready", # boolean saying, whether it's ready for use
"releasever", # version of targeted distribution
"repo_gpg_check", # [boolean] whether to check gpg
# signarues of data
"revision",
"timeout", # timeout for requests
)
def __init__(self, objid, repoid, arch, basearch, base_urls,
config_file, cost, enabled, gpg_check, last_edit, last_update,
name, pkg_dir, ready, releasever, repo_gpg_check, revision,
timeout, metalink=None, mirror_list=None, mirror_urls=None):
for arg in ('last_edit', 'last_update'):
if ( locals()[arg] is not None
and not isinstance(locals()[arg], datetime)):
raise TypeError("%s must be an instance of datetime" % arg)
if not isinstance(timeout, float):
raise TypeError("timeout must be a float")
for arg in ('cost', 'revision'):
if ( locals()[arg] is not None
and not isinstance(locals()[arg], (int, long))):
raise TypeError("%s must be an integer" % arg)
self.objid = objid
self.repoid = repoid
self.arch = arch
self.basearch = basearch
self.base_urls = list(base_urls)
self.config_file = config_file
self.cost = cost
self.enabled = bool(enabled)
self.gpg_check = bool(gpg_check)
self.last_edit = last_edit
self.last_update = last_update
self.metalink = "" if not metalink else metalink
self.mirror_list = "" if not mirror_list else mirror_list
self.mirror_urls = [] if not mirror_urls else list(mirror_urls)
self.name = name
#self.pkg_count = pkg_count
self.pkg_dir = pkg_dir
self.ready = bool(ready)
self.releasever = releasever
self.repo_gpg_check = bool(repo_gpg_check)
self.revision = revision
self.timeout = timeout
def __str__(self):
return self.repoid
def __getstate__(self):
"""
Used for serialization with pickle.
@return container content that will be serialized
"""
return dict((k, getattr(self, k)) for k in self.__slots__)
def __setstate__(self, state):
"""
Used for deserialization with pickle.
Restores the object from serialized form.
@param state is an object created by __setstate__() method
"""
for k, value in state.items():
setattr(self, k, value)
def make_repository_from_db(repo):
"""
Create instance of Repository from instance of yum.yumRepo.YumRepository
@return instance of Repository
"""
if not isinstance(repo, yum.yumRepo.YumRepository):
raise TypeError("repo must be in instance of yum.yumRepo.YumRepository")
metadata = {}
for prop_name in Repository.__slots__[1:]:
try:
metadata[prop_name] = get_prop_from_yum_repo(repo, prop_name)
except yum.Errors.RepoError as exc:
# some properties can cause error (like requesting ready)
logging.getLogger(__name__).warn(
'failed to get property "%s" of repo "%s": %s' % (
prop_name, repo.name, exc))
if prop_name == "ready":
metadata[prop_name] = False
else:
metadata[prop_name] = None
res = Repository(id(repo), **metadata)
return res
|
