blob: 3511c0dcb13a845ff6dde2419c3967ba037b6597 [file] [log] [blame]
# Copyright 2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
__all__ = ['getmaskingreason']
import portage
from portage import os
from portage.const import USER_CONFIG_PATH
from portage.dep import match_from_list
from portage.localization import _
from portage.util import grablines, normalize_path
from portage.versions import catpkgsplit
def getmaskingreason(mycpv, metadata=None, settings=None, portdb=None, return_location=False):
if settings is None:
settings = portage.settings
if portdb is None:
portdb = portage.portdb
mysplit = catpkgsplit(mycpv)
if not mysplit:
raise ValueError(_("invalid CPV: %s") % mycpv)
if metadata is None:
db_keys = list(portdb._aux_cache_keys)
try:
metadata = dict(zip(db_keys, portdb.aux_get(mycpv, db_keys)))
except KeyError:
if not portdb.cpv_exists(mycpv):
raise
if metadata is None:
# Can't access SLOT due to corruption.
cpv_slot_list = [mycpv]
else:
cpv_slot_list = ["%s:%s" % (mycpv, metadata["SLOT"])]
mycp=mysplit[0]+"/"+mysplit[1]
# XXX- This is a temporary duplicate of code from the config constructor.
locations = [os.path.join(settings["PORTDIR"], "profiles")]
locations.extend(settings.profiles)
for ov in settings["PORTDIR_OVERLAY"].split():
profdir = os.path.join(normalize_path(ov), "profiles")
if os.path.isdir(profdir):
locations.append(profdir)
locations.append(os.path.join(settings["PORTAGE_CONFIGROOT"],
USER_CONFIG_PATH))
locations.reverse()
pmasklists = [(x, grablines(os.path.join(x, "package.mask"), recursive=1)) for x in locations]
pmaskdict = settings._mask_manager._pmaskdict
if mycp in pmaskdict:
for x in pmaskdict[mycp]:
if match_from_list(x, cpv_slot_list):
for pmask in pmasklists:
comment = ""
comment_valid = -1
pmask_filename = os.path.join(pmask[0], "package.mask")
for i in range(len(pmask[1])):
l = pmask[1][i].strip()
if l == "":
comment = ""
comment_valid = -1
elif l[0] == "#":
comment += (l+"\n")
comment_valid = i + 1
elif l == x:
if comment_valid != i:
comment = ""
if return_location:
return (comment, pmask_filename)
else:
return comment
elif comment_valid != -1:
# Apparently this comment applies to muliple masks, so
# it remains valid until a blank line is encountered.
comment_valid += 1
if return_location:
return (None, None)
else:
return None