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#! /usr/bin/python3
# Copyright © 2010-2015 Piotr Ożarowski <piotr@debian.org>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
import re
import sys
try:
from distro_info import DistroInfo # python3-distro-info package
except ImportError:
DistroInfo = None
from gzip import decompress
from os import chdir, mkdir
from os.path import dirname, exists, isdir, join, split
from urllib.request import urlopen
if '--ubuntu' in sys.argv and DistroInfo:
SOURCES = [
'http://archive.ubuntu.com/ubuntu/dists/%s/Contents-amd64.gz' %
DistroInfo('ubuntu').devel(),
]
else:
SOURCES = [
'http://ftp.debian.org/debian/dists/unstable/main/Contents-all.gz',
'http://ftp.debian.org/debian/dists/unstable/main/Contents-amd64.gz',
]
IGNORED_PKGS = {'python-setuptools', 'python3-setuptools', 'pypy-setuptools'}
OVERRIDES = {
'cpython2': {
'python': 'python',
'setuptools': 'python-pkg-resources',
'wsgiref': 'python (>= 2.5) | python-wsgiref',
'argparse': 'python (>= 2.7) | python-argparse',
# not recognized due to .pth file (egg-info is in PIL/ and not in *-packages/)
'pil': 'python-pil',
'Pillow': 'python-pil'},
'cpython3': {
'pil': 'python3-pil',
'Pillow': 'python3-pil',
'pylint': 'pylint',
'setuptools': 'python3-pkg-resources',
'argparse': 'python3 (>= 3.2)'},
'pypy': {}
}
public_egg = re.compile(r'''
/usr/
(
(?P<cpython2>
(lib/python2\.[0-9]/((site)|(dist))-packages)|
(share/python-support/[^/]+)
)|
(?P<cpython3>
(lib/python3/dist-packages)
)|
(?P<pypy>
(lib/pypy/dist-packages)
)
)
/[^/]*\.(dist|egg)-info
''', re.VERBOSE).match
skip_sensible_names = True if '--skip-sensible-names' in sys.argv else False
chdir(dirname(__file__))
if isdir('../dhpython'):
sys.path.append('..')
else:
sys.path.append('/usr/share/dh-python/dhpython/')
from dhpython.pydist import sensible_pname
data = ''
if not isdir('cache'):
mkdir('cache')
for source in SOURCES:
cache_fpath = join('cache', split(source)[-1])
if not exists(cache_fpath):
with urlopen(source) as fp:
source_data = fp.read()
with open(cache_fpath, 'wb') as fp:
fp.write(source_data)
else:
with open(cache_fpath, 'rb') as fp:
source_data = fp.read()
try:
data += str(decompress(source_data), encoding='UTF-8')
except UnicodeDecodeError as e: # Ubuntu
data += str(decompress(source_data), encoding='ISO-8859-15')
result = {
'cpython3': {}
}
# Contents file doesn't contain comment these days
is_header = not data.startswith('bin')
for line in data.splitlines():
if is_header:
if line.startswith('FILE'):
is_header = False
continue
try:
path, desc = line.rsplit(maxsplit=1)
except ValueError:
# NOTE(jamespage) some lines in Ubuntu are not parseable.
continue
path = '/' + path.rstrip()
section, pkg_name = desc.rsplit('/', 1)
if pkg_name in IGNORED_PKGS:
continue
match = public_egg(path)
if match:
egg_name = [i.split('-', 1)[0] for i in path.split('/')
if i.endswith(('.egg-info', '.dist-info'))][0]
if egg_name.endswith('.egg'):
egg_name = egg_name[:-4]
impl = next(key for key, value in match.groupdict().items() if value)
if skip_sensible_names and\
sensible_pname(impl, egg_name) == pkg_name:
continue
if impl not in result:
continue
processed = result[impl]
if egg_name not in processed:
processed[egg_name] = pkg_name
for impl, details in result.items():
with open('{}_fallback'.format(impl), 'w') as fp:
overrides = OVERRIDES[impl]
lines = []
for egg, value in overrides.items():
lines.append('{} {}\n'.format(egg, value))
lines.extend(
'{} {}\n'.format(egg, pkg) for egg, pkg in details.items() if egg not in overrides
)
fp.writelines(sorted(lines))
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