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import os |
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import sys |
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import argparse |
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import requests |
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from enum import Enum |
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import urllib.parse as urlparse |
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import logging |
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import tarfile |
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logger = logging.getLogger() |
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logger.setLevel(logging.INFO) |
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class EnumString(Enum): |
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def __str__(self: Enum) -> str: |
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return self.value |
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class CorpusType(EnumString): |
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NEWS = "news" |
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WIKI = "wikipedia" |
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class CorpusSize(EnumString): |
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SMALLEST = "10K" |
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SMALL = "30K" |
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MEDIUM = "100K" |
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LARGE = "300K" |
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LARGEST = "1M" |
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BASE_URL = "https://downloads.wortschatz-leipzig.de" |
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URL_PREFIX = "corpora" |
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FILE_TEMPLATE = "fra_{type}_{year}_{size}.tar.gz" |
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def main(args: argparse.Namespace) -> int: |
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if not os.path.exists(args.dst_dir): |
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logger.info(f"Invalid destination directory: '{args.dst_dir}'.") |
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return -1 |
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filename = FILE_TEMPLATE.format( |
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type=args.type.value, |
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year=args.year, |
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size=args.size.value, |
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) |
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url = urlparse.urljoin( |
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BASE_URL, |
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f"{URL_PREFIX}/{filename}" |
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) |
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try: |
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file_path = os.path.join(args.dst_dir, filename) |
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logger.info("Downloading %s" % file_path) |
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with open(file_path, 'wb') as f: |
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response = requests.get(url, stream=True) |
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total_length = response.headers.get('content-length') |
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if total_length is None: |
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f.write(response.content) |
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else: |
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dl = 0 |
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total_length = int(total_length) |
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for data in response.iter_content(chunk_size=4096): |
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dl += len(data) |
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f.write(data) |
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done = int(50 * dl / total_length) |
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done_bar = '=' * done |
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remainder = ' ' * (50 - done) |
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done_pct = f"{100.0 * dl / total_length:6.2f}" |
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sys.stdout.write("\r[%s%s] [%s]" % (done_bar, remainder, done_pct)) |
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sys.stdout.flush() |
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except Exception as error: |
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logger.error(error) |
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return -1 |
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try: |
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logger.info("Extracting %s" % file_path) |
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with tarfile.open(file_path) as f: |
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f.extractall(os.path.dirname(file_path)) |
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except Exception as error: |
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logger.error(error) |
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return -2 |
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return 0 |
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if __name__ == "__main__": |
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parser = argparse.ArgumentParser() |
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parser.add_argument( |
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"--type", '-t', |
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type=CorpusType, |
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choices=list(CorpusType) |
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) |
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parser.add_argument( |
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"--year", '-y', |
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type=str, |
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default='2023' |
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) |
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parser.add_argument( |
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"--size", '-s', |
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type=CorpusSize, |
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choices=list(CorpusSize) |
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) |
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parser.add_argument( |
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"--dst-dir", '-d', |
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type=str, |
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default='data' |
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) |
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args, _ = parser.parse_known_args() |
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sys.exit( |
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main(args) |
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) |
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