PyLink/pylink-contribdl

#!/usr/bin/env python3
"""
Contrib module manager for PyLink IRC Services.
"""

from distutils.util import strtobool
import sys
import os
import os.path
import urllib.request
import traceback

BASE_URL = 'https://github.com/PyLink/pylink-contrib-modules'

if __name__ == '__main__':
    import argparse

    parser = argparse.ArgumentParser(description=__doc__)
    parser.add_argument('path', nargs='+', help='specifies the paths to download (e.g. '
                        '"plugins/helloworld", "protocols/blah", etc.)')
    parser.add_argument('--version', '-v', nargs='?', help='specifies the tag (version) to download from',
                        default='master')
    parser.add_argument('--yes', '-y', action='store_true', help='skip yes/no confirmations')

    if len(sys.argv) < 2:
        parser.print_help()
        print()
        print('For a list of available contrib modules, see %s' % BASE_URL)
        sys.exit(1)

    args = parser.parse_args()

    print('This will download the following URLs:')
    print()

    urls = {}
    for target in set(args.path):
        if not target.startswith(('plugins', 'protocols')):
            print('ERROR: Target paths should be in one of the following forms: "plugins/<pluginname>" '
                  'or "protocols/<modulename>" (got %r)' % target, file=sys.stderr)
            sys.exit(1)

        target += '.py'
        url = '%s/blob/%s/%s' % (BASE_URL, args.version, target)
        urls[target] = url
        print(url, '=>', '%s' % os.path.join(os.getcwd(), target))

    if not args.yes:
        text = input('Continue (Y)es/(n)o? ').lower()
        if not strtobool(text):
            sys.exit(1)
    print()

    for filename, url in urls.items():
        print('Retrieving %s...' % url)
        try:
            urllib.request.urlretrieve(url, filename)
        except:
            # If one request errors, move onto the next one.
            traceback.print_exc()
            continue

    print()
    print('All downloads finished.')