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|
# portage.py -- core Portage functionality
# Copyright 1998-2009 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id$
from __future__ import print_function
VERSION="$Rev$"[6:-2] + "-svn"
# ===========================================================================
# START OF IMPORTS -- START OF IMPORTS -- START OF IMPORTS -- START OF IMPORT
# ===========================================================================
try:
import sys
import codecs
import copy
import errno
if not hasattr(errno, 'ESTALE'):
# ESTALE may not be defined on some systems, such as interix.
errno.ESTALE = -1
import logging
import re
import time
import types
try:
import cPickle as pickle
except ImportError:
import pickle
import stat
try:
from subprocess import getstatusoutput as subprocess_getstatusoutput
except ImportError:
from commands import getstatusoutput as subprocess_getstatusoutput
try:
from io import StringIO
except ImportError:
# Needed for python-2.6 with USE=build since
# io imports threading which imports thread
# which is unavailable.
from StringIO import StringIO
import platform
import warnings
# Temporarily delete these imports, to ensure that only the
# wrapped versions are imported by portage internals.
import os
del os
import shutil
del shutil
except ImportError as e:
sys.stderr.write("\n\n")
sys.stderr.write("!!! Failed to complete python imports. These are internal modules for\n")
sys.stderr.write("!!! python and failure here indicates that you have a problem with python\n")
sys.stderr.write("!!! itself and thus portage is not able to continue processing.\n\n")
sys.stderr.write("!!! You might consider starting python with verbose flags to see what has\n")
sys.stderr.write("!!! gone wrong. Here is the information we got for this exception:\n")
sys.stderr.write(" "+str(e)+"\n\n");
raise
try:
try:
from collections import OrderedDict
except ImportError:
from portage.cache.mappings import OrderedDict
from portage.cache.cache_errors import CacheError
import portage.proxy.lazyimport
import portage.proxy as proxy
proxy.lazyimport.lazyimport(globals(),
'portage.checksum',
'portage.checksum:perform_checksum,perform_md5,prelink_capable',
'portage.cvstree',
'portage.data',
'portage.data:lchown,ostype,portage_gid,portage_uid,secpass,' + \
'uid,userland,userpriv_groups,wheelgid',
'portage.dbapi',
'portage.dbapi.bintree:bindbapi,binarytree',
'portage.dbapi.cpv_expand:cpv_expand',
'portage.dbapi.dep_expand:dep_expand',
'portage.dbapi.porttree:close_portdbapi_caches,FetchlistDict,' + \
'portagetree,portdbapi',
'portage.dbapi.vartree:dblink,merge,unmerge,vardbapi,vartree',
'portage.dbapi.virtual:fakedbapi',
'portage.dep',
'portage.dep:best_match_to_list,dep_getcpv,dep_getkey,' + \
'flatten,get_operator,isjustname,isspecific,isvalidatom,' + \
'match_from_list,match_to_list',
'portage.dep.dep_check:dep_check,dep_eval,dep_wordreduce,dep_zapdeps',
'portage.eclass_cache',
'portage.env.loaders',
'portage.exception',
'portage.getbinpkg',
'portage.locks',
'portage.locks:lockdir,lockfile,unlockdir,unlockfile',
'portage.mail',
'portage.manifest:Manifest',
'portage.output',
'portage.output:bold,colorize',
'portage.package.ebuild.doebuild:doebuild,' + \
'doebuild_environment,spawn,spawnebuild',
'portage.package.ebuild.config:autouse,best_from_dict,' + \
'check_config_instance,config',
'portage.package.ebuild.digestcheck:digestcheck',
'portage.package.ebuild.digestgen:digestgen',
'portage.package.ebuild.fetch:fetch',
'portage.package.ebuild.getmaskingreason:getmaskingreason',
'portage.package.ebuild.getmaskingstatus:getmaskingstatus',
'portage.package.ebuild.prepare_build_dirs:prepare_build_dirs',
'portage.process',
'portage.process:atexit_register,run_exitfuncs',
'portage.update:dep_transform,fixdbentries,grab_updates,' + \
'parse_updates,update_config_files,update_dbentries,' + \
'update_dbentry',
'portage.util',
'portage.util:atomic_ofstream,apply_secpass_permissions,' + \
'apply_recursive_permissions,dump_traceback,getconfig,' + \
'grabdict,grabdict_package,grabfile,grabfile_package,' + \
'map_dictlist_vals,new_protect_filename,normalize_path,' + \
'pickle_read,pickle_write,stack_dictlist,stack_dicts,' + \
'stack_lists,unique_array,varexpand,writedict,writemsg,' + \
'writemsg_stdout,write_atomic',
'portage.util.digraph:digraph',
'portage.util.env_update:env_update',
'portage.util.ExtractKernelVersion:ExtractKernelVersion',
'portage.util.listdir:cacheddir,listdir',
'portage.util.movefile:movefile',
'portage.versions',
'portage.versions:best,catpkgsplit,catsplit,cpv_getkey,' + \
'cpv_getkey@getCPFromCPV,endversion_keys,' + \
'suffix_value@endversion,pkgcmp,pkgsplit,vercmp,ververify',
'portage.xpak',
'portage._deprecated:dep_virtual,digestParseFile,getvirtuals,pkgmerge',
)
import portage.const
from portage.const import VDB_PATH, PRIVATE_PATH, CACHE_PATH, DEPCACHE_PATH, \
USER_CONFIG_PATH, MODULES_FILE_PATH, CUSTOM_PROFILE_PATH, PORTAGE_BASE_PATH, \
PORTAGE_BIN_PATH, PORTAGE_PYM_PATH, PROFILE_PATH, LOCALE_DATA_PATH, \
EBUILD_SH_BINARY, SANDBOX_BINARY, BASH_BINARY, \
MOVE_BINARY, PRELINK_BINARY, WORLD_FILE, MAKE_CONF_FILE, MAKE_DEFAULTS_FILE, \
DEPRECATED_PROFILE_FILE, USER_VIRTUALS_FILE, EBUILD_SH_ENV_FILE, \
INVALID_ENV_FILE, CUSTOM_MIRRORS_FILE, CONFIG_MEMORY_FILE,\
INCREMENTALS, EAPI, MISC_SH_BINARY, REPO_NAME_LOC, REPO_NAME_FILE
from portage.localization import _
except ImportError as e:
sys.stderr.write("\n\n")
sys.stderr.write("!!! Failed to complete portage imports. There are internal modules for\n")
sys.stderr.write("!!! portage and failure here indicates that you have a problem with your\n")
sys.stderr.write("!!! installation of portage. Please try a rescue portage located in the\n")
sys.stderr.write("!!! portage tree under '/usr/portage/sys-apps/portage/files/' (default).\n")
sys.stderr.write("!!! There is a README.RESCUE file that details the steps required to perform\n")
sys.stderr.write("!!! a recovery of portage.\n")
sys.stderr.write(" "+str(e)+"\n\n")
raise
if sys.hexversion >= 0x3000000:
basestring = str
long = int
# Assume utf_8 fs encoding everywhere except in merge code, where the
# user's locale is respected.
_encodings = {
'content' : 'utf_8',
'fs' : 'utf_8',
'merge' : sys.getfilesystemencoding(),
'repo.content' : 'utf_8',
'stdio' : 'utf_8',
}
# This can happen if python is built with USE=build (stage 1).
if _encodings['merge'] is None:
_encodings['merge'] = 'ascii'
if sys.hexversion >= 0x3000000:
def _unicode_encode(s, encoding=_encodings['content'], errors='backslashreplace'):
if isinstance(s, str):
s = s.encode(encoding, errors)
return s
def _unicode_decode(s, encoding=_encodings['content'], errors='replace'):
if isinstance(s, bytes):
s = str(s, encoding=encoding, errors=errors)
return s
else:
def _unicode_encode(s, encoding=_encodings['content'], errors='backslashreplace'):
if isinstance(s, unicode):
s = s.encode(encoding, errors)
return s
def _unicode_decode(s, encoding=_encodings['content'], errors='replace'):
if isinstance(s, bytes):
s = unicode(s, encoding=encoding, errors=errors)
return s
class _unicode_func_wrapper(object):
"""
Wraps a function, converts arguments from unicode to bytes,
and return values to unicode from bytes. Function calls
will raise UnicodeEncodeError if an argument fails to be
encoded with the required encoding. Return values that
are single strings are decoded with errors='replace'. Return
values that are lists of strings are decoded with errors='strict'
and elements that fail to be decoded are omitted from the returned
list.
"""
__slots__ = ('_func', '_encoding')
def __init__(self, func, encoding=_encodings['fs']):
self._func = func
self._encoding = encoding
def __call__(self, *args, **kwargs):
encoding = self._encoding
wrapped_args = [_unicode_encode(x, encoding=encoding, errors='strict')
for x in args]
if kwargs:
wrapped_kwargs = dict(
(k, _unicode_encode(v, encoding=encoding, errors='strict'))
for k, v in kwargs.items())
else:
wrapped_kwargs = {}
rval = self._func(*wrapped_args, **wrapped_kwargs)
if isinstance(rval, (list, tuple)):
decoded_rval = []
for x in rval:
try:
x = _unicode_decode(x, encoding=encoding, errors='strict')
except UnicodeDecodeError:
pass
else:
decoded_rval.append(x)
if isinstance(rval, tuple):
rval = tuple(decoded_rval)
else:
rval = decoded_rval
else:
rval = _unicode_decode(rval, encoding=encoding, errors='replace')
return rval
class _unicode_module_wrapper(object):
"""
Wraps a module and wraps all functions with _unicode_func_wrapper.
"""
__slots__ = ('_mod', '_encoding', '_overrides', '_cache')
def __init__(self, mod, encoding=_encodings['fs'], overrides=None, cache=True):
object.__setattr__(self, '_mod', mod)
object.__setattr__(self, '_encoding', encoding)
object.__setattr__(self, '_overrides', overrides)
if cache:
cache = {}
else:
cache = None
object.__setattr__(self, '_cache', cache)
def __getattribute__(self, attr):
cache = object.__getattribute__(self, '_cache')
if cache is not None:
result = cache.get(attr)
if result is not None:
return result
result = getattr(object.__getattribute__(self, '_mod'), attr)
encoding = object.__getattribute__(self, '_encoding')
overrides = object.__getattribute__(self, '_overrides')
override = None
if overrides is not None:
override = overrides.get(id(result))
if override is not None:
result = override
elif isinstance(result, type):
pass
elif type(result) is types.ModuleType:
result = _unicode_module_wrapper(result,
encoding=encoding, overrides=overrides)
elif hasattr(result, '__call__'):
result = _unicode_func_wrapper(result, encoding=encoding)
if cache is not None:
cache[attr] = result
return result
import os as _os
_os_overrides = {
id(_os.fdopen) : _os.fdopen,
id(_os.popen) : _os.popen,
id(_os.read) : _os.read,
id(_os.system) : _os.system,
}
if hasattr(_os, 'statvfs'):
_os_overrides[id(_os.statvfs)] = _os.statvfs
os = _unicode_module_wrapper(_os, overrides=_os_overrides,
encoding=_encodings['fs'])
_os_merge = _unicode_module_wrapper(_os,
encoding=_encodings['merge'], overrides=_os_overrides)
import shutil as _shutil
shutil = _unicode_module_wrapper(_shutil, encoding=_encodings['fs'])
# Imports below this point rely on the above unicode wrapper definitions.
try:
import portage._selinux
selinux = _unicode_module_wrapper(_selinux,
encoding=_encodings['fs'])
_selinux_merge = _unicode_module_wrapper(_selinux,
encoding=_encodings['merge'])
except (ImportError, OSError) as e:
if isinstance(e, OSError):
sys.stderr.write("!!! SELinux not loaded: %s\n" % str(e))
del e
_selinux = None
selinux = None
_selinux_merge = None
# ===========================================================================
# END OF IMPORTS -- END OF IMPORTS -- END OF IMPORTS -- END OF IMPORTS -- END
# ===========================================================================
def _ensure_default_encoding():
default_encoding = sys.getdefaultencoding().lower().replace('-', '_')
filesystem_encoding = _encodings['merge'].lower().replace('-', '_')
required_encodings = set(['ascii', 'utf_8'])
required_encodings.add(default_encoding)
required_encodings.add(filesystem_encoding)
missing_encodings = set()
for codec_name in required_encodings:
try:
codecs.lookup(codec_name)
except LookupError:
missing_encodings.add(codec_name)
if not missing_encodings:
return
from portage import _ensure_encodings
_ensure_encodings._setup_encodings(default_encoding,
filesystem_encoding, missing_encodings)
# Do this ASAP since writemsg() might not work without it.
_ensure_default_encoding()
def _shell_quote(s):
"""
Quote a string in double-quotes and use backslashes to
escape any backslashes, double-quotes, dollar signs, or
backquotes in the string.
"""
for letter in "\\\"$`":
if letter in s:
s = s.replace(letter, "\\" + letter)
return "\"%s\"" % s
bsd_chflags = None
if platform.system() in ('FreeBSD',):
class bsd_chflags(object):
@classmethod
def chflags(cls, path, flags, opts=""):
cmd = 'chflags %s %o %s' % (opts, flags, _shell_quote(path))
status, output = subprocess_getstatusoutput(cmd)
if os.WIFEXITED(status) and os.WEXITSTATUS(status) == os.EX_OK:
return
# Try to generate an ENOENT error if appropriate.
if 'h' in opts:
_os_merge.lstat(path)
else:
_os_merge.stat(path)
# Make sure the binary exists.
if not portage.process.find_binary('chflags'):
raise portage.exception.CommandNotFound('chflags')
# Now we're not sure exactly why it failed or what
# the real errno was, so just report EPERM.
e = OSError(errno.EPERM, output)
e.errno = errno.EPERM
e.filename = path
e.message = output
raise e
@classmethod
def lchflags(cls, path, flags):
return cls.chflags(path, flags, opts='-h')
def load_mod(name):
modname = ".".join(name.split(".")[:-1])
mod = __import__(modname)
components = name.split('.')
for comp in components[1:]:
mod = getattr(mod, comp)
return mod
def getcwd():
"this fixes situations where the current directory doesn't exist"
try:
return os.getcwd()
except OSError: #dir doesn't exist
os.chdir("/")
return "/"
getcwd()
def abssymlink(symlink):
"This reads symlinks, resolving the relative symlinks, and returning the absolute."
mylink=os.readlink(symlink)
if mylink[0] != '/':
mydir=os.path.dirname(symlink)
mylink=mydir+"/"+mylink
return os.path.normpath(mylink)
_doebuild_manifest_exempt_depend = 0
_testing_eapis = frozenset()
_deprecated_eapis = frozenset(["3_pre2", "3_pre1", "2_pre3", "2_pre2", "2_pre1"])
def _eapi_is_deprecated(eapi):
return eapi in _deprecated_eapis
def eapi_is_supported(eapi):
if not isinstance(eapi, basestring):
# Only call str() when necessary since with python2 it
# can trigger UnicodeEncodeError if EAPI is corrupt.
eapi = str(eapi)
eapi = eapi.strip()
if _eapi_is_deprecated(eapi):
return True
if eapi in _testing_eapis:
return True
try:
eapi = int(eapi)
except ValueError:
eapi = -1
if eapi < 0:
return False
return eapi <= portage.const.EAPI
# Generally, it's best not to assume that cache entries for unsupported EAPIs
# can be validated. However, the current package manager specification does not
# guarantee that the EAPI can be parsed without sourcing the ebuild, so
# it's too costly to discard existing cache entries for unsupported EAPIs.
# Therefore, by default, assume that cache entries for unsupported EAPIs can be
# validated. If FEATURES=parse-eapi-* is enabled, this assumption is discarded
# since the EAPI can be determined without the incurring the cost of sourcing
# the ebuild.
_validate_cache_for_unsupported_eapis = True
_parse_eapi_ebuild_head_re = re.compile(r'^EAPI=[\'"]?([^\'"#]*)')
_parse_eapi_ebuild_head_max_lines = 30
def _parse_eapi_ebuild_head(f):
count = 0
for line in f:
m = _parse_eapi_ebuild_head_re.match(line)
if m is not None:
return m.group(1).strip()
count += 1
if count >= _parse_eapi_ebuild_head_max_lines:
break
return '0'
# True when FEATURES=parse-eapi-glep-55 is enabled.
_glep_55_enabled = False
_split_ebuild_name_glep55_re = re.compile(r'^(.*)\.ebuild(-([^.]+))?$')
def _split_ebuild_name_glep55(name):
"""
@returns: (pkg-ver-rev, eapi)
"""
m = _split_ebuild_name_glep55_re.match(name)
if m is None:
return (None, None)
return (m.group(1), m.group(3))
def _movefile(src, dest, **kwargs):
"""Calls movefile and raises a PortageException if an error occurs."""
if movefile(src, dest, **kwargs) is None:
raise portage.exception.PortageException(
"mv '%s' '%s'" % (src, dest))
auxdbkeys = (
'DEPEND', 'RDEPEND', 'SLOT', 'SRC_URI',
'RESTRICT', 'HOMEPAGE', 'LICENSE', 'DESCRIPTION',
'KEYWORDS', 'INHERITED', 'IUSE', 'UNUSED_00',
'PDEPEND', 'PROVIDE', 'EAPI',
'PROPERTIES', 'DEFINED_PHASES', 'UNUSED_05', 'UNUSED_04',
'UNUSED_03', 'UNUSED_02', 'UNUSED_01',
)
auxdbkeylen=len(auxdbkeys)
def deprecated_profile_check(settings=None):
config_root = "/"
if settings is not None:
config_root = settings["PORTAGE_CONFIGROOT"]
deprecated_profile_file = os.path.join(config_root,
DEPRECATED_PROFILE_FILE)
if not os.access(deprecated_profile_file, os.R_OK):
return False
dcontent = codecs.open(_unicode_encode(deprecated_profile_file,
encoding=_encodings['fs'], errors='strict'),
mode='r', encoding=_encodings['content'], errors='replace').readlines()
writemsg(colorize("BAD", _("\n!!! Your current profile is "
"deprecated and not supported anymore.")) + "\n", noiselevel=-1)
writemsg(colorize("BAD", _("!!! Use eselect profile to update your "
"profile.")) + "\n", noiselevel=-1)
if not dcontent:
writemsg(colorize("BAD", _("!!! Please refer to the "
"Gentoo Upgrading Guide.")) + "\n", noiselevel=-1)
return True
newprofile = dcontent[0]
writemsg(colorize("BAD", _("!!! Please upgrade to the "
"following profile if possible:")) + "\n", noiselevel=-1)
writemsg(8*" " + colorize("GOOD", newprofile) + "\n", noiselevel=-1)
if len(dcontent) > 1:
writemsg(_("To upgrade do the following steps:\n"), noiselevel=-1)
for myline in dcontent[1:]:
writemsg(myline, noiselevel=-1)
writemsg("\n\n", noiselevel=-1)
return True
def commit_mtimedb(mydict=None, filename=None):
if mydict is None:
global mtimedb
if "mtimedb" not in globals() or mtimedb is None:
return
mtimedb.commit()
return
if filename is None:
global mtimedbfile
filename = mtimedbfile
mydict["version"] = VERSION
d = {} # for full backward compat, pickle it as a plain dict object.
d.update(mydict)
try:
f = atomic_ofstream(filename, mode='wb')
pickle.dump(d, f, protocol=2)
f.close()
portage.util.apply_secpass_permissions(filename,
uid=uid, gid=portage_gid, mode=0o644)
except (IOError, OSError) as e:
pass
def portageexit():
global uid,portage_gid,portdb,db
if secpass and os.environ.get("SANDBOX_ON") != "1":
close_portdbapi_caches()
commit_mtimedb()
atexit_register(portageexit)
def _global_updates(trees, prev_mtimes):
"""
Perform new global updates if they exist in $PORTDIR/profiles/updates/.
@param trees: A dictionary containing portage trees.
@type trees: dict
@param prev_mtimes: A dictionary containing mtimes of files located in
$PORTDIR/profiles/updates/.
@type prev_mtimes: dict
@rtype: None or List
@return: None if no were no updates, otherwise a list of update commands
that have been performed.
"""
# only do this if we're root and not running repoman/ebuild digest
global secpass
if secpass < 2 or "SANDBOX_ACTIVE" in os.environ:
return
root = "/"
mysettings = trees["/"]["vartree"].settings
updpath = os.path.join(mysettings["PORTDIR"], "profiles", "updates")
try:
if mysettings["PORTAGE_CALLER"] == "fixpackages":
update_data = grab_updates(updpath)
else:
update_data = grab_updates(updpath, prev_mtimes)
except portage.exception.DirectoryNotFound:
writemsg(_("--- 'profiles/updates' is empty or "
"not available. Empty portage tree?\n"), noiselevel=1)
return
myupd = None
if len(update_data) > 0:
do_upgrade_packagesmessage = 0
myupd = []
timestamps = {}
for mykey, mystat, mycontent in update_data:
writemsg_stdout("\n\n")
writemsg_stdout(colorize("GOOD",
_("Performing Global Updates: "))+bold(mykey)+"\n")
writemsg_stdout(_("(Could take a couple of minutes if you have a lot of binary packages.)\n"))
writemsg_stdout(_(" %s='update pass' %s='binary update' "
"%s='/var/db update' %s='/var/db move'\n"
" %s='/var/db SLOT move' %s='binary move' "
"%s='binary SLOT move'\n %s='update /etc/portage/package.*'\n") % \
(bold("."), bold("*"), bold("#"), bold("@"), bold("s"), bold("%"), bold("S"), bold("p")))
valid_updates, errors = parse_updates(mycontent)
myupd.extend(valid_updates)
writemsg_stdout(len(valid_updates) * "." + "\n")
if len(errors) == 0:
# Update our internal mtime since we
# processed all of our directives.
timestamps[mykey] = mystat[stat.ST_MTIME]
else:
for msg in errors:
writemsg("%s\n" % msg, noiselevel=-1)
world_file = os.path.join(root, WORLD_FILE)
world_list = grabfile(world_file)
world_modified = False
for update_cmd in myupd:
for pos, atom in enumerate(world_list):
new_atom = update_dbentry(update_cmd, atom)
if atom != new_atom:
world_list[pos] = new_atom
world_modified = True
if world_modified:
world_list.sort()
write_atomic(world_file,
"".join("%s\n" % (x,) for x in world_list))
update_config_files("/",
mysettings.get("CONFIG_PROTECT","").split(),
mysettings.get("CONFIG_PROTECT_MASK","").split(),
myupd)
trees["/"]["bintree"] = binarytree("/", mysettings["PKGDIR"],
settings=mysettings)
vardb = trees["/"]["vartree"].dbapi
bindb = trees["/"]["bintree"].dbapi
if not os.access(bindb.bintree.pkgdir, os.W_OK):
bindb = None
for update_cmd in myupd:
if update_cmd[0] == "move":
moves = vardb.move_ent(update_cmd)
if moves:
writemsg_stdout(moves * "@")
if bindb:
moves = bindb.move_ent(update_cmd)
if moves:
writemsg_stdout(moves * "%")
elif update_cmd[0] == "slotmove":
moves = vardb.move_slot_ent(update_cmd)
if moves:
writemsg_stdout(moves * "s")
if bindb:
moves = bindb.move_slot_ent(update_cmd)
if moves:
writemsg_stdout(moves * "S")
# The above global updates proceed quickly, so they
# are considered a single mtimedb transaction.
if len(timestamps) > 0:
# We do not update the mtime in the mtimedb
# until after _all_ of the above updates have
# been processed because the mtimedb will
# automatically commit when killed by ctrl C.
for mykey, mtime in timestamps.items():
prev_mtimes[mykey] = mtime
# We gotta do the brute force updates for these now.
if mysettings["PORTAGE_CALLER"] == "fixpackages" or \
"fixpackages" in mysettings.features:
def onUpdate(maxval, curval):
if curval > 0:
writemsg_stdout("#")
vardb.update_ents(myupd, onUpdate=onUpdate)
if bindb:
def onUpdate(maxval, curval):
if curval > 0:
writemsg_stdout("*")
bindb.update_ents(myupd, onUpdate=onUpdate)
else:
do_upgrade_packagesmessage = 1
# Update progress above is indicated by characters written to stdout so
# we print a couple new lines here to separate the progress output from
# what follows.
print()
print()
if do_upgrade_packagesmessage and bindb and \
bindb.cpv_all():
writemsg_stdout(_(" ** Skipping packages. Run 'fixpackages' or set it in FEATURES to fix the tbz2's in the packages directory.\n"))
writemsg_stdout(bold(_("Note: This can take a very long time.")))
writemsg_stdout("\n")
if myupd:
return myupd
#continue setting up other trees
class MtimeDB(dict):
def __init__(self, filename):
dict.__init__(self)
self.filename = filename
self._load(filename)
def _load(self, filename):
try:
f = open(_unicode_encode(filename), 'rb')
mypickle = pickle.Unpickler(f)
try:
mypickle.find_global = None
except AttributeError:
# TODO: If py3k, override Unpickler.find_class().
pass
d = mypickle.load()
f.close()
del f
except (IOError, OSError, EOFError, ValueError, pickle.UnpicklingError) as e:
if isinstance(e, pickle.UnpicklingError):
writemsg(_("!!! Error loading '%s': %s\n") % \
(filename, str(e)), noiselevel=-1)
del e
d = {}
if "old" in d:
d["updates"] = d["old"]
del d["old"]
if "cur" in d:
del d["cur"]
d.setdefault("starttime", 0)
d.setdefault("version", "")
for k in ("info", "ldpath", "updates"):
d.setdefault(k, {})
mtimedbkeys = set(("info", "ldpath", "resume", "resume_backup",
"starttime", "updates", "version"))
for k in list(d):
if k not in mtimedbkeys:
writemsg(_("Deleting invalid mtimedb key: %s\n") % str(k))
del d[k]
self.update(d)
self._clean_data = copy.deepcopy(d)
def commit(self):
if not self.filename:
return
d = {}
d.update(self)
# Only commit if the internal state has changed.
if d != self._clean_data:
commit_mtimedb(mydict=d, filename=self.filename)
self._clean_data = copy.deepcopy(d)
def create_trees(config_root=None, target_root=None, trees=None):
if trees is None:
trees = {}
else:
# clean up any existing portdbapi instances
for myroot in trees:
portdb = trees[myroot]["porttree"].dbapi
portdb.close_caches()
portdbapi.portdbapi_instances.remove(portdb)
del trees[myroot]["porttree"], myroot, portdb
settings = config(config_root=config_root, target_root=target_root,
config_incrementals=portage.const.INCREMENTALS)
settings.lock()
myroots = [(settings["ROOT"], settings)]
if settings["ROOT"] != "/":
# When ROOT != "/" we only want overrides from the calling
# environment to apply to the config that's associated
# with ROOT != "/", so pass a nearly empty dict for the env parameter.
clean_env = {}
for k in ('PATH', 'TERM'):
v = settings.get(k)
if v is not None:
clean_env[k] = v
settings = config(config_root=None, target_root="/", env=clean_env)
settings.lock()
myroots.append((settings["ROOT"], settings))
for myroot, mysettings in myroots:
trees[myroot] = portage.util.LazyItemsDict(trees.get(myroot, {}))
trees[myroot].addLazySingleton("virtuals", mysettings.getvirtuals, myroot)
trees[myroot].addLazySingleton(
"vartree", vartree, myroot, categories=mysettings.categories,
settings=mysettings)
trees[myroot].addLazySingleton("porttree",
portagetree, myroot, settings=mysettings)
trees[myroot].addLazySingleton("bintree",
binarytree, myroot, mysettings["PKGDIR"], settings=mysettings)
return trees
class _LegacyGlobalProxy(proxy.objectproxy.ObjectProxy):
"""
Instances of these serve as proxies to global variables
that are initialized on demand.
"""
__slots__ = ('_name',)
def __init__(self, name):
proxy.objectproxy.ObjectProxy.__init__(self)
object.__setattr__(self, '_name', name)
def _get_target(self):
init_legacy_globals()
name = object.__getattribute__(self, '_name')
return globals()[name]
class _PortdbProxy(proxy.objectproxy.ObjectProxy):
"""
The portdb is initialized separately from the rest
of the variables, since sometimes the other variables
are needed while the portdb is not.
"""
__slots__ = ()
def _get_target(self):
init_legacy_globals()
global db, portdb, root, _portdb_initialized
if not _portdb_initialized:
portdb = db[root]["porttree"].dbapi
_portdb_initialized = True
return portdb
class _MtimedbProxy(proxy.objectproxy.ObjectProxy):
"""
The mtimedb is independent from the portdb and other globals.
"""
__slots__ = ('_name',)
def __init__(self, name):
proxy.objectproxy.ObjectProxy.__init__(self)
object.__setattr__(self, '_name', name)
def _get_target(self):
global mtimedb, mtimedbfile, _mtimedb_initialized
if not _mtimedb_initialized:
mtimedbfile = os.path.join(os.path.sep,
CACHE_PATH, "mtimedb")
mtimedb = MtimeDB(mtimedbfile)
_mtimedb_initialized = True
name = object.__getattribute__(self, '_name')
return globals()[name]
_legacy_global_var_names = ("archlist", "db", "features",
"groups", "mtimedb", "mtimedbfile", "pkglines",
"portdb", "profiledir", "root", "selinux_enabled",
"settings", "thirdpartymirrors", "usedefaults")
def _disable_legacy_globals():
"""
This deletes the ObjectProxy instances that are used
for lazy initialization of legacy global variables.
The purpose of deleting them is to prevent new code
from referencing these deprecated variables.
"""
global _legacy_global_var_names
for k in _legacy_global_var_names:
globals().pop(k, None)
# Initialization of legacy globals. No functions/classes below this point
# please! When the above functions and classes become independent of the
# below global variables, it will be possible to make the below code
# conditional on a backward compatibility flag (backward compatibility could
# be disabled via an environment variable, for example). This will enable new
# code that is aware of this flag to import portage without the unnecessary
# overhead (and other issues!) of initializing the legacy globals.
def init_legacy_globals():
global _globals_initialized
if _globals_initialized:
return
_globals_initialized = True
global db, settings, root, portdb, selinux_enabled, mtimedbfile, mtimedb, \
archlist, features, groups, pkglines, thirdpartymirrors, usedefaults, \
profiledir, flushmtimedb
# Portage needs to ensure a sane umask for the files it creates.
os.umask(0o22)
kwargs = {}
for k, envvar in (("config_root", "PORTAGE_CONFIGROOT"), ("target_root", "ROOT")):
kwargs[k] = os.environ.get(envvar, "/")
global _initializing_globals
_initializing_globals = True
db = create_trees(**kwargs)
del _initializing_globals
settings = db["/"]["vartree"].settings
for myroot in db:
if myroot != "/":
settings = db[myroot]["vartree"].settings
break
root = settings["ROOT"]
output._init(config_root=settings['PORTAGE_CONFIGROOT'])
# ========================================================================
# COMPATIBILITY
# These attributes should not be used
# within Portage under any circumstances.
# ========================================================================
archlist = settings.archlist()
features = settings.features
groups = settings["ACCEPT_KEYWORDS"].split()
pkglines = settings.packages
selinux_enabled = settings.selinux_enabled()
thirdpartymirrors = settings.thirdpartymirrors()
usedefaults = settings.use_defs
profiledir = os.path.join(settings["PORTAGE_CONFIGROOT"], PROFILE_PATH)
if not os.path.isdir(profiledir):
profiledir = None
def flushmtimedb(record):
writemsg("portage.flushmtimedb() is DEPRECATED\n")
# ========================================================================
# COMPATIBILITY
# These attributes should not be used
# within Portage under any circumstances.
# ========================================================================
if True:
_mtimedb_initialized = False
mtimedb = _MtimedbProxy("mtimedb")
mtimedbfile = _MtimedbProxy("mtimedbfile")
_portdb_initialized = False
portdb = _PortdbProxy()
_globals_initialized = False
for k in ("db", "settings", "root", "selinux_enabled",
"archlist", "features", "groups",
"pkglines", "thirdpartymirrors", "usedefaults", "profiledir",
"flushmtimedb"):
globals()[k] = _LegacyGlobalProxy(k)
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