/usr/share/pyshared/vamos/golem/FileSet.py is in undertaker 1.3b-1.1.
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# golem - analyzes feature dependencies in Linux makefiles
#
# Copyright (C) 2011 Christian Dietrich <christian.dietrich@informatik.uni-erlangen.de>
# Copyright (C) 2012 Reinhard Tartler <tartler@informatik.uni-erlangen.de>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
from vamos.golem.kbuild import files_for_selected_features
import logging
class FileSet:
"""
A FileSet is a list of files and directories, compiled by a given selection.
"""
def __init__(self, selection, arch, subarch=None):
self.arch = arch
self.subarch = subarch
self.selection = selection
try:
(self.files, self.dirs) = files_for_selected_features(selection.features(), arch, subarch)
except RuntimeError as e:
logging.error("Failed to determine fileset, continuing anyways: %s", e)
self.files = set()
self.dirs = set()
return
self.files = self.files
self.dirs = self.dirs
def compare_to_base(self, other):
"""
Compare the filesets to a other selection.
@return ((f_added, f_deleted), (d_added, d_deleted))
"""
f_added = self.files - other.files
f_deleted = other.files - self.files
d_added = self.dirs - other.dirs
d_deleted = other.dirs - self.dirs
return ((f_added, f_deleted), (d_added, d_deleted))
class FileSetCache(dict):
def __init__(self, arch, subarch):
dict.__init__(self)
self.arch = arch
self.subarch = subarch
def get_fileset(self, selection):
if not selection in self:
self[selection] = [FileSet(selection, arch=self.arch, subarch=self.subarch), 1]
else:
# hit
# logging.info("HIT " + str(sys.getsizeof(self)) + " " + str(len(self)))
self[selection][1] += 1
return self[selection][0]
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