Tool to help debianize Python packages for uploading to a PPA

pydebianize

#!/usr/bin/env python

import argparse
import os
import re
import subprocess
import tarfile
from contextlib import contextmanager

description = """
pydebianize performs all the necessary steps to build a set of Debian source
packages for multiple Debian suites, suitable for uploading to your PPA. After
building a source distribution, run pydebianize something like this:

  pydebianize -d dist/yourpackage-1.2.3.tar.gz precise trusty xenial

Once this is finished, you can upload to your PPA with dput:

  dput ppa:yourusername/yourppa deb_dist/yourpackage_1.2.3-*_source.changes
"""


@contextmanager
def pushd(dirname, mode=0o777, verbose=False, dry=False):
    if verbose or dry:
        print('pushd {}'.format(dirname))
    if not dry:
        old = os.getcwd()
        os.chdir(dirname)

    yield

    if verbose or dry:
        print('popd')
    if not dry:
        os.chdir(old)


def check_call(args, verbose=False, dry=False, **kwargs):
    if verbose or dry:
        print(' '.join(args))
    if not dry:
        subprocess.check_call(args, **kwargs)


def split_suite(suite, default_suffix):
    bits = suite.split(':', 1)
    if len(bits) == 1:
        return bits[0], bits[0] + default_suffix
    return bits


if __name__ == '__main__':
    parser = argparse.ArgumentParser(
        formatter_class=argparse.RawDescriptionHelpFormatter,
        description=description
    )
    parser.add_argument('-d', '--dist', metavar='FILE', required=True,
                        help='the .tar.gz made by `sdist`')
    parser.add_argument('-s', '--version-suffix', metavar='SUFFIX',
                        default='1',
                        help=('the default version suffix for the debian ' +
                              'version (default: %(default)s)'))
    parser.add_argument('-x', dest='forward_opts', metavar='OPTION',
                        action='append', default=[],
                        help='arguments to forward to sdist_dsc')
    parser.add_argument('-v', '--verbose', action='store_true',
                        help='run verbosely')
    parser.add_argument('-D', '--dry-run', action='store_true',
                        help='display commands without executing')
    parser.add_argument('suite', nargs='+',
                        help=('the debian suite(s) to package for; specify ' +
                              'as "suite" or "suite:debianversion"'))

    args = parser.parse_args()

    with tarfile.open(args.dist) as f:
        # Get the directory name from the tarball, and convert dev versions to
        # Debian-friendly syntax (e.g. ".dev0" -> "~dev0").
        dist_dir = re.sub(r'\.(?=[A-Za-z])', '~', f.next().name)

    for s in args.suite:
        suite, version = split_suite(s, args.version_suffix)
        check_call(
            ['python', 'setup.py', '--command-packages=stdeb.command',
             'sdist_dsc', '-P', args.dist, '--suite', suite,
             '--debian-version', version] + args.forward_opts,
            verbose=args.verbose, dry=args.dry_run
        )

        with pushd('deb_dist/{}'.format(dist_dir), verbose=args.verbose,
                   dry=args.dry_run):
            check_call(['debuild', '-S', '-sa'], verbose=args.verbose,
                       dry=args.dry_run)