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import logging
import Bcfg2.Server.Plugin
from Bcfg2.Server.Plugins.Cfg import CfgFilter
logger = logging.getLogger(__name__)
class CfgCatFilter(CfgFilter):
__extensions__ = ['cat']
def modify_data(self, entry, metadata, data):
datalines = data.strip().split('\n')
for line in self.data.split('\n'):
if not line:
continue
if line.startswith('+'):
datalines.append(line[1:])
elif line.startswith('-'):
if line[1:] in datalines:
datalines.remove(line[1:])
return "\n".join(datalines) + "\n"
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