75 lines
2.2 KiB
Python
75 lines
2.2 KiB
Python
"""Commandline argument parsing utilities."""
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from argparse import ArgumentParser
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def get_argument_parser():
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"""Sets up an argparse ArgumentParser and returns it."""
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mainparser = ArgumentParser(
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description="Debian ISO preseeding tool.",
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)
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# add mutually exclusive optional arguments to top-level parser
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mainparser_group = mainparser.add_mutually_exclusive_group()
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mainparser_group.add_argument(
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"-o",
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"--output-file",
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action='store',
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type=str,
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dest='path_to_output_file',
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metavar='OUTPUTFILE',
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help="File as which the retrieved/generated file will be saved",
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)
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mainparser_group.add_argument(
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"-O",
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"--output-dir",
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action='store',
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type=str,
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dest='path_to_output_dir',
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metavar='OUTPUTDIR',
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help="Directory into which the retrieved/generated file will be written",
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)
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# register subparsers for the 'get' and 'inject' subcommands
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subparsers = mainparser.add_subparsers(
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required=True,
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title="Subcommands",
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description="A choice of actions you want udib to take",
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help="You must specify one of these",
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dest="subparser_name",
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)
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subparser_get = subparsers.add_parser(
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"get",
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description="Retrieve an unmodified Debian ISO or example preseed file",
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)
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subparser_inject = subparsers.add_parser(
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"inject",
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description="Inject a preseed file into a Debian ISO",
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)
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# register arguments for the 'get' subcommand
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subparser_get.add_argument(
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"WHAT",
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choices=['preseed-file-basic', 'preseed-file-full', 'iso', 'iso-testing'],
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action='store',
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type=str,
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metavar='WHAT',
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help="The type of file you want UDIB to retrieve. "
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"Valid options are: 'preseed-file-basic', 'preseed-file-full', "
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"'iso' (stable) or 'iso-testing'.",
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)
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# register arguments for the 'inject' subcommand
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subparser_inject.add_argument(
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"-i",
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"--image-file",
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action='store',
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type=str,
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dest='path_to_image_file',
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metavar='IMAGEFILE',
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help="Path to the ISO you want to modify",
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)
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return mainparser
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