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# Copyright (C) 2012, Benjamin Drung <bdrung@debian.org>
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
"""Common parsing and utility functions"""
import argparse
import csv
import datetime
from pathlib import Path
def convert_date(string):
"""Convert a date string in ISO 8601 into a datetime object."""
if not string:
date = None
else:
parts = [int(x) for x in string.split("-")]
if len(parts) == 3:
(year, month, day) = parts
date = datetime.date(year, month, day)
else:
raise ValueError("Date not in ISO 8601 format.")
return date
def get_csv_dict_reader(filename: str) -> csv.DictReader:
"""Read the given CSV file and return a `csv.DictReader`.
Comments (lines starting with #) will be removed.
"""
with open(filename, encoding="ascii") as csv_file:
content = csv_file.readlines()
# Remove comments
for counter, line in enumerate(content):
if line.startswith("#"):
content[counter] = "\n"
return csv.DictReader(content)
def main(validation_function):
"""Main function with command line parameter parsing."""
parser = argparse.ArgumentParser(usage="%(prog)s [-h] csv-file")
parser.add_argument(
"csv_file", metavar="csv-file", type=Path, help="CSV file to validate"
)
args = parser.parse_args()
if not args.csv_file.exists():
parser.error(f"{args.csv_file} does not exist.")
distro = args.csv_file.stem
return int(not validation_function(str(args.csv_file), distro))
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