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# vi: ts=4 expandtab
#
# Copyright (C) 2012 Yahoo! Inc.
#
# Author: Joshua Harlow <harlowja@yahoo-inc.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3, as
# published by the Free Software Foundation.
#
# 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/>.
class Merger(object):
def __init__(self, merger, opts):
self._merger = merger
self._overwrite = 'overwrite' in opts
def _on_dict(self, value, merge_with):
if not isinstance(merge_with, (dict)):
return value
merged = dict(value)
for (k, v) in merge_with.items():
if k in merged:
if not self._overwrite:
merged[k] = self._merger.merge(merged[k], v)
else:
merged[k] = v
else:
merged[k] = v
return merged
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