mirror of https://github.com/patacrep/patacrep.git
Engine for LaTeX songbooks
http://www.patacrep.com
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72 lines
1.9 KiB
72 lines
1.9 KiB
"""Perform operations on cache."""
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import argparse
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import logging
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import os
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import shutil
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import sys
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import textwrap
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from patacrep import errors
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from patacrep.songbook import open_songbook
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LOGGER = logging.getLogger("patatools.cache")
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def filename(name):
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"""Check that argument is an existing, readable file name.
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Return the argument for convenience.
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"""
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if os.path.isfile(name) and os.access(name, os.R_OK):
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return name
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raise argparse.ArgumentTypeError("Cannot read file '{}'.".format(name))
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def commandline_parser():
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"""Return a command line parser."""
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parser = argparse.ArgumentParser(
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prog="patatools cache",
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description="Convert between song formats.",
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formatter_class=argparse.RawTextHelpFormatter,
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)
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subparsers = parser.add_subparsers(
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description="",
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dest="command",
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)
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subparsers.required = True
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clean = subparsers.add_parser(
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"clean",
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description="Delete cache.",
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help="Delete cache.",
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)
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clean.add_argument(
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'songbook',
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metavar="SONGBOOK",
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help=textwrap.dedent("""Songbook file to be used to look for cache path."""),
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type=filename,
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)
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clean.set_defaults(command=do_clean)
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return parser
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def do_clean(namespace):
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"""Execute the `patatools cache clean` command."""
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for datadir in open_songbook(namespace.songbook)['_datadir']:
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cachedir = os.path.join(datadir, ".cache")
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LOGGER.info("Deleting cache directory '{}'...".format(cachedir))
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if os.path.isdir(cachedir):
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shutil.rmtree(cachedir)
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def main(args):
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"""Main function: run from command line."""
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options = commandline_parser().parse_args(args[1:])
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try:
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options.command(options)
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except errors.SongbookError as error:
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LOGGER.error(str(error))
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sys.exit(1)
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if __name__ == "__main__":
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main(sys.argv)
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