Source code for sylib.nodes.sympathy.export.datasource_exporters.plugin_gz_archiver
# This file is part of Sympathy for Data.
# Copyright (c) 2015, 2017, Combine Control Systems AB
#
# Sympathy for Data 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, version 3 of the License.
#
# Sympathy for Data 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 Sympathy for Data. If not, see <http://www.gnu.org/licenses/>.
import os
import shutil
import gzip
from sylib.export import datasource as importdatasource
[docs]class DataArchiveGz(importdatasource.DatasourceArchiveBase):
"""Compressor for GZIP files"""
EXPORTER_NAME = "GZIP Compressor"
FILENAME_EXTENSION = 'gz'
@staticmethod
def hide_filename():
return True
def export_data(self, in_datasource, filename, progress=None):
in_file = in_datasource.decode_path()
with open(in_file, 'rb') as i_f, gzip.open(filename, 'wb') as o_f:
shutil.copyfileobj(i_f, o_f)
return [filename]
def create_filenames(self, input_list, filename, *args):
return ['{}.{}'.format(
os.path.basename(path.decode_path()), self.FILENAME_EXTENSION)
for path in input_list]