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# Copyright 2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
__all__ = (
'MaskManager',
)
from portage import os
from portage.dep import ExtendedAtomDict, match_from_list, _repo_separator, _slot_separator
from portage.util import append_repo, grabfile_package, stack_lists
from portage.versions import cpv_getkey
class MaskManager(object):
def __init__(self, repositories, profiles, abs_user_config,
user_config=True, strict_umatched_removal=False):
self._punmaskdict = ExtendedAtomDict(list)
self._pmaskdict = ExtendedAtomDict(list)
#Read profile/package.mask from every repo.
#Repositories inherit masks from their parent profiles and
#are able to remove mask from them with -atoms.
#Such a removal affects only the current repo, but not the parent.
#Add ::repo specs to every atom to make sure atoms only affect
#packages from the current repo.
# Cache the repository-wide package.mask files as a particular
# repo may be often referenced by others as the master.
pmask_cache = {}
def grab_pmask(loc):
if loc not in pmask_cache:
pmask_cache[loc] = grabfile_package(
os.path.join(loc, "profiles", "package.mask"),
recursive=1, remember_source_file=True, verify_eapi=True)
return pmask_cache[loc]
repo_pkgmasklines = []
for repo in repositories.repos_with_profiles():
lines = []
repo_lines = grab_pmask(repo.location)
for master in repo.masters:
master_lines = grab_pmask(master.location)
lines.append(stack_lists([master_lines, repo_lines], incremental=1,
remember_source_file=True, warn_for_unmatched_removal=True,
strict_warn_for_unmatched_removal=strict_umatched_removal))
if not repo.masters:
lines.append(stack_lists([repo_lines], incremental=1,
remember_source_file=True, warn_for_unmatched_removal=True,
strict_warn_for_unmatched_removal=strict_umatched_removal))
repo_pkgmasklines.extend(append_repo(stack_lists(lines), repo.name, remember_source_file=True))
repo_pkgunmasklines = []
for repo in repositories.repos_with_profiles():
repo_lines = grabfile_package(os.path.join(repo.location, "profiles", "package.unmask"), \
recursive=1, remember_source_file=True, verify_eapi=True)
lines = stack_lists([repo_lines], incremental=1, \
remember_source_file=True, warn_for_unmatched_removal=True,
strict_warn_for_unmatched_removal=strict_umatched_removal)
repo_pkgunmasklines.extend(append_repo(lines, repo.name, remember_source_file=True))
#Read package.mask from the user's profile. Stack them in the end
#to allow profiles to override masks from their parent profiles.
profile_pkgmasklines = []
profile_pkgunmasklines = []
for x in profiles:
profile_pkgmasklines.append(grabfile_package(
os.path.join(x, "package.mask"), recursive=1, remember_source_file=True, verify_eapi=True))
profile_pkgunmasklines.append(grabfile_package(
os.path.join(x, "package.unmask"), recursive=1, remember_source_file=True, verify_eapi=True))
profile_pkgmasklines = stack_lists(profile_pkgmasklines, incremental=1, \
remember_source_file=True, warn_for_unmatched_removal=True,
strict_warn_for_unmatched_removal=strict_umatched_removal)
profile_pkgunmasklines = stack_lists(profile_pkgunmasklines, incremental=1, \
remember_source_file=True, warn_for_unmatched_removal=True,
strict_warn_for_unmatched_removal=strict_umatched_removal)
#Read /etc/portage/package.mask. Don't stack it to allow the user to
#remove mask atoms from everywhere with -atoms.
user_pkgmasklines = []
user_pkgunmasklines = []
if user_config:
user_pkgmasklines = grabfile_package(
os.path.join(abs_user_config, "package.mask"), recursive=1, \
allow_wildcard=True, allow_repo=True, remember_source_file=True, verify_eapi=False)
user_pkgunmasklines = grabfile_package(
os.path.join(abs_user_config, "package.unmask"), recursive=1, \
allow_wildcard=True, allow_repo=True, remember_source_file=True, verify_eapi=False)
#Stack everything together. At this point, only user_pkgmasklines may contain -atoms.
#Don't warn for unmatched -atoms here, since we don't do it for any other user config file.
pkgmasklines = stack_lists([repo_pkgmasklines, profile_pkgmasklines, user_pkgmasklines], \
incremental=1, remember_source_file=True, warn_for_unmatched_removal=False, ignore_repo=True)
pkgunmasklines = stack_lists([repo_pkgunmasklines, profile_pkgunmasklines, user_pkgunmasklines], \
incremental=1, remember_source_file=True, warn_for_unmatched_removal=False, ignore_repo=True)
for x, source_file in pkgmasklines:
self._pmaskdict.setdefault(x.cp, []).append(x)
for x, source_file in pkgunmasklines:
self._punmaskdict.setdefault(x.cp, []).append(x)
for d in (self._pmaskdict, self._punmaskdict):
for k, v in d.items():
d[k] = tuple(v)
def getMaskAtom(self, cpv, slot, repo):
"""
Take a package and return a matching package.mask atom, or None if no
such atom exists or it has been cancelled by package.unmask. PROVIDE
is not checked, so atoms will not be found for old-style virtuals.
@param cpv: The package name
@type cpv: String
@param slot: The package's slot
@type slot: String
@rtype: String
@return: A matching atom string or None if one is not found.
"""
cp = cpv_getkey(cpv)
mask_atoms = self._pmaskdict.get(cp)
if mask_atoms:
pkg = "".join((cpv, _slot_separator, slot))
if repo:
pkg = "".join((pkg, _repo_separator, repo))
pkg_list = [pkg]
unmask_atoms = self._punmaskdict.get(cp)
for x in mask_atoms:
if not match_from_list(x, pkg_list):
continue
if unmask_atoms:
for y in unmask_atoms:
if match_from_list(y, pkg_list):
return None
return x
return None
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