calibre/setup.py at master · Instapaper/calibre · GitHub

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#!/usr/bin/env python
# vim:fileencoding=UTF-8:ts=4:sw=4:sta:et:sts=4:ai


__license__ = 'GPL v3'
__copyright__ = '2009, Kovid Goyal <kovid@kovidgoyal.net>'
__docformat__ = 'restructuredtext en'

import os
import re
import sys

src_base = os.path.dirname(os.path.abspath(__file__))


def check_version_info():
    with open(os.path.join(src_base, 'pyproject.toml')) as f:
        raw = f.read()
    m = re.search(r'''^requires-python\s*=\s*['"](.+?)['"]''', raw, flags=re.MULTILINE)
    assert m is not None
    minver = m.group(1)
    m = re.match(r'(>=?)(\d+)\.(\d+)', minver)
    assert m is not None
    q = int(m.group(2)), int(m.group(3))
    if m.group(1) == '>=':
        is_ok = sys.version_info >= q
    else:
        is_ok = sys.version_info > q
    if not is_ok:
        sys.exit(f'calibre requires Python {minver}. Current Python version: {".".join(map(str, sys.version_info[:3]))}')


check_version_info()

sys.path.insert(0, src_base)

from setup import commands, get_warnings, prints


def option_parser():
    import optparse

    parser = optparse.OptionParser()
    parser.add_option('-c', '--clean', default=False, action='store_true', help=('Instead of running the command delete all files generated by the command'))
    parser.add_option('--clean-backups', default=False, action='store_true', help='Delete all backup files from the source tree')
    parser.add_option('--clean-all', default=False, action='store_true', help='Delete all machine generated files from the source tree')
    return parser


def clean_backups():
    for root, _, files in os.walk('.'):
        for name in files:
            for t in ('.pyc', '.pyo', '~', '.swp', '.swo'):
                if name.endswith(t):
                    os.remove(os.path.join(root, name))


def main(args=sys.argv):
    if len(args) == 1 or args[1] in ('-h', '--help'):
        print('Usage: python', args[0], 'command', '[options]')
        print('\nWhere command is one of:')
        print()
        for x in sorted(commands.__all__):
            print(f'{x:20} -', end=' ')
            c = getattr(commands, x)
            desc = getattr(c, 'short_description', c.description)
            print(desc)

        print('\nTo get help on a particular command, run:')
        print('\tpython', args[0], 'command -h')
        return 1

    command = args[1]
    if command not in commands.__all__:
        print(command, 'is not a recognized command.')
        print('Valid commands:', ', '.join(commands.__all__))
        return 1

    command = getattr(commands, command)

    parser = option_parser()
    command.add_all_options(parser)
    usage = f'Usage: python setup.py {args[1]} [options]\n\n' + command.description
    if command.usage_help:
        usage += '\n\n' + command.usage_help
    parser.set_usage(usage)

    opts, args = parser.parse_args(args)
    opts.cli_args = args[2:]

    if opts.clean_backups:
        clean_backups()

    if opts.clean:
        prints('Cleaning', args[1])
        command.clean()
        return 0

    if opts.clean_all:
        for cmd in commands.__all__:
            prints('Cleaning', cmd)
            getattr(commands, cmd).clean()
        return 0

    command.run_all(opts)

    warnings = get_warnings()
    if warnings:
        print()
        prints('There were', len(warnings), 'warning(s):')
        print()
        for args, kwargs in warnings:
            prints('*', *args, **kwargs)
            print()

    return 0


if __name__ == '__main__':
    sys.exit(main())