6 @contact: Debian FTPMaster <ftpmaster@debian.org>
7 @copyright: 2008 Mark Hymers <mhy@debian.org>
8 @license: GNU General Public License version 2 or later
11 # This program is free software; you can redistribute it and/or modify
12 # it under the terms of the GNU General Public License as published by
13 # the Free Software Foundation; either version 2 of the License, or
14 # (at your option) any later version.
16 # This program is distributed in the hope that it will be useful,
17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 # GNU General Public License for more details.
21 # You should have received a copy of the GNU General Public License
22 # along with this program; if not, write to the Free Software
23 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 ################################################################################
27 # <NCommander> mhy, how about "Now with 20% more monty python references"
29 ################################################################################
35 ################################################################################
37 default_config = "/etc/dak/dak.conf" #: default dak config, defines host properties
39 # suppress some deprecation warnings in squeeze related to apt_pkg
42 warnings.filterwarnings('ignore', ".*apt_pkg.* is deprecated.*", DeprecationWarning)
44 ################################################################################
46 def which_conf_file():
47 return os.getenv("DAK_CONFIG", default_config)
51 A Config object is a singleton containing
52 information about the DAK configuration
57 def __init__(self, *args, **kwargs):
58 self.__dict__ = self.__shared_state
60 if not getattr(self, 'initialised', False):
61 self.initialised = True
63 self._setup_routines()
68 self.Cnf = apt_pkg.Configuration()
70 apt_pkg.read_config_file_isc(self.Cnf, which_conf_file())
72 # Check whether our dak.conf was the real one or
73 # just a pointer to our main one
74 res = socket.gethostbyaddr(socket.gethostname())
75 conffile = self.Cnf.get("Config::" + res[0] + "::DakConfig")
77 apt_pkg.read_config_file_isc(self.Cnf, conffile)
79 # Rebind some functions
81 self.get = self.Cnf.get
82 self.subtree = self.Cnf.subtree
83 self.value_list = self.Cnf.value_list
84 self.find = self.Cnf.find
85 self.find_b = self.Cnf.find_b
86 self.find_i = self.Cnf.find_i
88 def has_key(self, name):
89 return name in self.Cnf
91 def __contains__(self, name):
92 return name in self.Cnf
94 def __getitem__(self, name):
97 def __setitem__(self, name, value):
98 self.Cnf[name] = value
101 def get_db_value(name, default=None, rettype=None):
102 from daklib.dbconn import DBConfig, DBConn, NoResultFound
104 res = DBConn().session().query(DBConfig).filter(DBConfig.name == name).one()
105 except NoResultFound:
109 return rettype(res.value)
113 def _setup_routines(self):
115 This routine is the canonical list of which fields need to exist in
116 the config table. If your dak instance is to work, we suggest reading it
118 Of course, what the values do is another matter
120 for field in [('db_revision', None, int),
121 ('defaultsuitename', 'unstable', str),
122 ('exportpath', '', str),
123 ('unprivgroup', None, str)
125 setattr(self, 'get_%s' % field[0], lambda s=None, x=field[0], y=field[1], z=field[2]: self.get_db_value(x, y, z))
126 setattr(Config, '%s' % field[0], property(fget=getattr(self, 'get_%s' % field[0])))
128 def get_defaultsuite(self):
129 from daklib.dbconn import get_suite
130 suitename = self.defaultsuitename
134 return get_suite(suitename)
136 defaultsuite = property(get_defaultsuite)