pym/portage/_legacy_globals.py

   1 # Copyright 2010 Gentoo Foundation
   2 # Distributed under the terms of the GNU General Public License v2
   3
   4 import portage
   5 from portage import os
   6 from portage.const import CACHE_PATH, PROFILE_PATH
   7
   8 def _get_legacy_global(name):
   9         constructed = portage._legacy_globals_constructed
  10         if name in constructed:
  11                 return getattr(portage, name)
  12
  13         if name == 'portdb':
  14                 portage.portdb = portage.db[portage.root]["porttree"].dbapi
  15                 constructed.add(name)
  16                 return getattr(portage, name)
  17
  18         elif name in ('mtimedb', 'mtimedbfile'):
  19                 portage.mtimedbfile = os.path.join(portage.settings['EROOT'],
  20                         CACHE_PATH, "mtimedb")
  21                 constructed.add('mtimedbfile')
  22                 portage.mtimedb = portage.MtimeDB(portage.mtimedbfile)
  23                 constructed.add('mtimedb')
  24                 return getattr(portage, name)
  25
  26         # Portage needs to ensure a sane umask for the files it creates.
  27         os.umask(0o22)
  28
  29         kwargs = {}
  30         for k, envvar in (("config_root", "PORTAGE_CONFIGROOT"), ("target_root", "ROOT")):
  31                 kwargs[k] = os.environ.get(envvar)
  32
  33         portage._initializing_globals = True
  34         portage.db = portage.create_trees(**kwargs)
  35         constructed.add('db')
  36         del portage._initializing_globals
  37
  38         settings = portage.db[portage.db._target_eroot]["vartree"].settings
  39         portage.output._init(config_root=settings['PORTAGE_CONFIGROOT'])
  40
  41         portage.settings = settings
  42         constructed.add('settings')
  43
  44         # Since portage.db now uses EROOT for keys instead of ROOT, we make
  45         # portage.root refer to EROOT such that it continues works as a key.
  46         portage.root = portage.db._target_eroot
  47         constructed.add('root')
  48
  49         # COMPATIBILITY
  50         # These attributes should not be used within
  51         # Portage under any circumstances.
  52
  53         portage.archlist = settings.archlist()
  54         constructed.add('archlist')
  55
  56         portage.features = settings.features
  57         constructed.add('features')
  58
  59         portage.groups = settings["ACCEPT_KEYWORDS"].split()
  60         constructed.add('groups')
  61
  62         portage.pkglines = settings.packages
  63         constructed.add('pkglines')
  64
  65         portage.selinux_enabled = settings.selinux_enabled()
  66         constructed.add('selinux_enabled')
  67
  68         portage.thirdpartymirrors = settings.thirdpartymirrors()
  69         constructed.add('thirdpartymirrors')
  70
  71         profiledir = os.path.join(settings["PORTAGE_CONFIGROOT"], PROFILE_PATH)
  72         if not os.path.isdir(profiledir):
  73                 profiledir = None
  74         portage.profiledir = profiledir
  75         constructed.add('profiledir')
  76
  77         return getattr(portage, name)