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# Copyright (C) 2010-2023 Bastian Kleineidam
#
# 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/>.
"""Archive commands for the star program."""
import functools
def extract_tar(archive, compression, cmd, verbosity, interactive, outdir):
"""Extract a TAR archive."""
cmdlist = [cmd, '-x']
cmdlist.extend(get_star_opts(cmd, compression, verbosity))
cmdlist.extend(['-C', outdir, f"file={archive}"])
return cmdlist
def list_tar(archive, compression, cmd, verbosity, interactive):
"""List a TAR archive."""
cmdlist = [cmd, '-n']
cmdlist.extend(get_star_opts(cmd, compression, verbosity))
cmdlist.append(f"file={archive}")
return cmdlist
test_tar = list_tar
def create_tar(archive, compression, cmd, verbosity, interactive, filenames):
"""Create a TAR archive."""
cmdlist = [cmd, '-c']
cmdlist.extend(get_star_opts(cmd, compression, verbosity))
cmdlist.append(f"file={archive}")
cmdlist.extend(filenames)
return cmdlist
@functools.cache
def get_star_opts(cmd, compression, verbosity):
"""Add tar options to cmdlist."""
cmdlist = []
if compression == 'gzip':
cmdlist.append('-z')
elif compression == 'compress':
cmdlist.append('-Z')
elif compression == 'bzip2':
cmdlist.append('-j')
elif compression in ('lzma', 'xz', 'lzip'):
# use the compression name as program name since
# tar is picky which programs it can use
program = compression
# set compression program
cmdlist.extend(['compress-program=', program])
if verbosity > 1:
cmdlist.append('-v')
return cmdlist
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