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
|
""" The Svn plugin provides a revision interface for Bcfg2 repos using
Subversion. If PySvn libraries are installed, then it exposes two
additional XML-RPC methods for committing data to the repository and
updating the repository. """
import sys
import Bcfg2.Server.Plugin
from Bcfg2.Compat import ConfigParser
try:
import pysvn
HAS_SVN = True
except ImportError:
import pipes
from subprocess import Popen, PIPE
HAS_SVN = False
class Svn(Bcfg2.Server.Plugin.Version):
"""Svn is a version plugin for dealing with Bcfg2 repos."""
__author__ = 'bcfg-dev@mcs.anl.gov'
__vcs_metadata_path__ = ".svn"
if HAS_SVN:
__rmi__ = Bcfg2.Server.Plugin.Version.__rmi__ + ['Update', 'Commit']
conflict_resolution_map = {
"base": pysvn.wc_conflict_choice.base,
"working": pysvn.wc_conflict_choice.working,
"mine-conflict": pysvn.wc_conflict_choice.mine_conflict,
"theirs-conflict": pysvn.wc_conflict_choice.theirs_conflict,
"mine-full": pysvn.wc_conflict_choice.mine_full,
"theirs-full": pysvn.wc_conflict_choice.theirs_full,
"none": None
}
else:
__vcs_metadata_path__ = ".svn"
def callback_conflict_resolver(self, conflict_description):
"""PySvn callback function to resolve conflicts"""
self.logger.info("Svn: Resolving conflict for %s with %s" % \
(conflict_description['path'],
self.svn_resolution))
return self.conflict_resolution_map[self.svn_resolution], None, False
def __init__(self, core, datastore):
Bcfg2.Server.Plugin.Version.__init__(self, core, datastore)
self.revision = None
self.svn_root = None
if not HAS_SVN:
self.logger.debug("Svn: PySvn not found, using CLI interface to "
"SVN")
self.client = None
else:
self.client = pysvn.Client()
try:
if self.core.setup.cfg.has_option("Svn",
"conflict_resolution"):
self.svn_resolution = self.core.setup.cfp.get("Svn",
"conflict_resolution")
self.client.callback_conflict_resolver = \
self.callback_conflict_resolver
except ConfigParser.NoSectionError:
msg = "Svn: No [Svn] section found in bcfg2.conf"
self.logger.warning(msg)
except ConfigParser.NoOptionError:
msg = "Svn: Option not found in bcfg2.conf: %s" % \
sys.exc_info()[1]
self.logger.warning(msg)
self.logger.debug("Initialized svn plugin with SVN directory %s" %
self.vcs_path)
def get_revision(self):
"""Read svn revision information for the Bcfg2 repository."""
msg = None
if HAS_SVN:
try:
info = self.client.info(self.vcs_root)
self.revision = info.revision
self.svn_root = info.url
return str(self.revision.number)
except pysvn.ClientError: # pylint: disable=E1101
msg = "Svn: Failed to get revision: %s" % sys.exc_info()[1]
else:
try:
data = Popen(("env LC_ALL=C svn info %s" %
pipes.quote(self.vcs_root)), shell=True,
stdout=PIPE).communicate()[0].split('\n')
return [line.split(': ')[1] for line in data \
if line[:9] == 'Revision:'][-1]
except IndexError:
msg = "Failed to read svn info"
self.logger.error('Ran command "svn info %s"' % self.vcs_root)
self.revision = None
self.logger.error(msg)
raise Bcfg2.Server.Plugin.PluginExecutionError(msg)
def Update(self):
'''Svn.Update() => True|False\nUpdate svn working copy\n'''
try:
old_revision = self.revision.number
self.revision = self.client.update(self.vcs_root, recurse=True)[0]
except pysvn.ClientError: # pylint: disable=E1101
err = sys.exc_info()[1]
# try to be smart about the error we got back
details = None
if "callback_ssl_server_trust_prompt" in str(err):
details = "SVN server certificate is not trusted"
elif "callback_get_login" in str(err):
details = "SVN credentials not cached"
if details is None:
self.logger.error("Svn: Failed to update server repository",
exc_info=1)
else:
self.logger.error("Svn: Failed to update server repository: "
"%s" % details)
return False
if old_revision == self.revision.number:
self.logger.debug("repository is current")
else:
self.logger.info("Updated %s from revision %s to %s" % \
(self.vcs_root, old_revision, self.revision.number))
return True
def Commit(self):
"""Svn.Commit() => True|False\nCommit svn repository\n"""
# First try to update
if not self.Update():
self.logger.error("Failed to update svn repository, refusing to "
"commit changes")
return False
try:
self.revision = self.client.checkin([self.vcs_root],
'Svn: autocommit',
recurse=True)
self.revision = self.client.update(self.vcs_root, recurse=True)[0]
self.logger.info("Svn: Commited changes. At %s" %
self.revision.number)
return True
except pysvn.ClientError: # pylint: disable=E1101
err = sys.exc_info()[1]
# try to be smart about the error we got back
details = None
if "callback_ssl_server_trust_prompt" in str(err):
details = "SVN server certificate is not trusted"
elif "callback_get_login" in str(err):
details = "SVN credentials not cached"
if details is None:
self.logger.error("Svn: Failed to commit changes",
exc_info=1)
else:
self.logger.error("Svn: Failed to commit changes: %s" %
details)
return False
|
