micng/configmgr.py

   1 #!/usr/bin/python -t
   2
   3 import os
   4 import micng.utils as utils
   5
   6 DEFAULT_OUTDIR='.'
   7 DEFAULT_TMPDIR='/tmp'
   8 DEFAULT_CACHE='/var/tmp'
   9 DEFAULT_GSITECONF='/etc/micng/micng.conf'
  10 DEFAULT_USITECONF='~/.micng.conf'
  11
  12 class ConfigMgr(object):
  13     def __init__(self, siteconf=None, ksfile=None):
  14         self.outdir = DEFAULT_OUTDIR
  15         self.tmpdir = DEFAULT_TMPDIR
  16         self.cache = DEFAULT_CACHE
  17         self.siteconf = siteconf
  18         self.name = 'meego'
  19         self.ksfile = ksfile
  20         self.kickstart = None
  21         self.ksrepos = None
  22         self.repometadata = None
  23         self.init_siteconf(self.siteconf)
  24         self.init_kickstart(self.ksfile)
  25
  26     def init_siteconf(self, siteconf = None):
  27         from ConfigParser import SafeConfigParser
  28         siteconf_parser = SafeConfigParser()
  29         siteconf_files = [DEFAULT_GSITECONF, DEFAULT_USITECONF]
  30
  31         if siteconf:
  32             self.siteconf = siteconf
  33             siteconf_files = [self.siteconf]
  34         siteconf_parser.read(siteconf_files)
  35
  36         for option in siteconf_parser.options('main'):
  37             value = siteconf_parser.get('main', option)
  38             setattr(self, option, value)
  39
  40     def init_kickstart(self, ksfile=None):
  41         if not ksfile:
  42             return
  43         self.ksfile = ksfile
  44         try:
  45             self.kickstart = utils.kickstart.read_kickstart(self.ksfile)
  46             self.ksrepos = utils.misc.get_repostrs_from_ks(self.kickstart)
  47             print "retrieving repo metadata..."
  48             self.repometadata = utils.misc.get_metadata_from_repos(self.ksrepos, self.cache)
  49         except OSError, e:
  50             raise Exception("failed to create image: %s" % e)
  51         except Exception, e:
  52             raise Exception("unable to load kickstart file '%s': %s" % (self.ksfile, e))
  53
  54
  55     def setProperty(self, name, value):
  56         if not hasattr(self, name):
  57             return None
  58         #print ">>", name, value
  59         if name == 'ksfile':
  60             self.init_kickstart(value)
  61             return True
  62         if name == 'siteconf':
  63             self.init_siteconf(value)
  64             return True
  65         return setattr(self, name, value)
  66
  67     def getProperty(self, name):
  68         if not hasattr(self, name):
  69             return None
  70         return getattr(self, name)
  71
  72 configmgr = ConfigMgr()
  73
  74 def getConfigMgr():
  75     return configmgr
  76
  77 def setProperty(cinfo, name):
  78     if not isinstance(cinfo, ConfigMgr):
  79         return None
  80     if not hasattr(cinfo, name):
  81         return None
  82
  83 def getProperty(cinfo, name):
  84     if not isinstance(cinfo, ConfigMgr):
  85         return None
  86     if not hasattr(cinfo, name):
  87         return None