/usr/lib/python3/dist-packages/aptsources/distro.py is in python3-apt 0.9.3.5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 | # distro.py - Provide a distro abstraction of the sources.list
#
# Copyright (c) 2004-2009 Canonical Ltd.
# Copyright (c) 2006-2007 Sebastian Heinlein
#
# Authors: Sebastian Heinlein <glatzor@ubuntu.com>
# Michael Vogt <mvo@debian.org>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
# USA
import gettext
import logging
import re
import os
from xml.etree.ElementTree import ElementTree
from apt_pkg import gettext as _
class NoDistroTemplateException(Exception):
pass
class Distribution(object):
def __init__(self, id, codename, description, release):
""" Container for distribution specific informations """
# LSB information
self.id = id
self.codename = codename
self.description = description
self.release = release
self.binary_type = "deb"
self.source_type = "deb-src"
def get_sources(self, sourceslist):
"""
Find the corresponding template, main and child sources
for the distribution
"""
self.sourceslist = sourceslist
# corresponding sources
self.source_template = None
self.child_sources = []
self.main_sources = []
self.disabled_sources = []
self.cdrom_sources = []
self.download_comps = []
self.enabled_comps = []
self.cdrom_comps = []
self.used_media = []
self.get_source_code = False
self.source_code_sources = []
# location of the sources
self.default_server = ""
self.main_server = ""
self.nearest_server = ""
self.used_servers = []
# find the distro template
for template in self.sourceslist.matcher.templates:
if (self.is_codename(template.name) and
template.distribution == self.id):
#print "yeah! found a template for %s" % self.description
#print template.description, template.base_uri, \
# template.components
self.source_template = template
break
if self.source_template is None:
raise NoDistroTemplateException(
"Error: could not find a distribution template for %s/%s" %
(self.id, self.codename))
# find main and child sources
media = []
comps = []
cdrom_comps = []
enabled_comps = []
#source_code = []
for source in self.sourceslist.list:
if (not source.invalid and
self.is_codename(source.dist) and
source.template and
source.template.official and
self.is_codename(source.template.name)):
#print "yeah! found a distro repo: %s" % source.line
# cdroms need do be handled differently
if (source.uri.startswith("cdrom:") and
not source.disabled):
self.cdrom_sources.append(source)
cdrom_comps.extend(source.comps)
elif (source.uri.startswith("cdrom:") and
source.disabled):
self.cdrom_sources.append(source)
elif (source.type == self.binary_type and
not source.disabled):
self.main_sources.append(source)
comps.extend(source.comps)
media.append(source.uri)
elif (source.type == self.binary_type and
source.disabled):
self.disabled_sources.append(source)
elif (source.type == self.source_type
and not source.disabled):
self.source_code_sources.append(source)
elif (source.type == self.source_type and
source.disabled):
self.disabled_sources.append(source)
if (not source.invalid and
source.template in self.source_template.children):
if (not source.disabled
and source.type == self.binary_type):
self.child_sources.append(source)
elif (not source.disabled
and source.type == self.source_type):
self.source_code_sources.append(source)
else:
self.disabled_sources.append(source)
self.download_comps = set(comps)
self.cdrom_comps = set(cdrom_comps)
enabled_comps.extend(comps)
enabled_comps.extend(cdrom_comps)
self.enabled_comps = set(enabled_comps)
self.used_media = set(media)
self.get_mirrors()
def get_mirrors(self, mirror_template=None):
"""
Provide a set of mirrors where you can get the distribution from
"""
# the main server is stored in the template
self.main_server = self.source_template.base_uri
# other used servers
for medium in self.used_media:
if not medium.startswith("cdrom:"):
# seems to be a network source
self.used_servers.append(medium)
if len(self.main_sources) == 0:
self.default_server = self.main_server
else:
self.default_server = self.main_sources[0].uri
# get a list of country codes and real names
self.countries = {}
fname = "/usr/share/xml/iso-codes/iso_3166.xml"
if os.path.exists(fname):
et = ElementTree(file=fname)
# python2.6 compat, the next two lines can get removed
# once we do not use py2.6 anymore
if getattr(et, "iter", None) is None:
et.iter = et.getiterator
it = et.iter('iso_3166_entry')
for elm in it:
try:
descr = elm.attrib["common_name"]
except KeyError:
descr = elm.attrib["name"]
try:
code = elm.attrib["alpha_2_code"]
except KeyError:
code = elm.attrib["alpha_3_code"]
self.countries[code.lower()] = gettext.dgettext('iso_3166',
descr)
# try to guess the nearest mirror from the locale
self.country = None
self.country_code = None
locale = os.getenv("LANG", default="en_UK")
a = locale.find("_")
z = locale.find(".")
if z == -1:
z = len(locale)
country_code = locale[a + 1:z].lower()
if mirror_template:
self.nearest_server = mirror_template % country_code
if country_code in self.countries:
self.country = self.countries[country_code]
self.country_code = country_code
def _get_mirror_name(self, server):
''' Try to get a human readable name for the main mirror of a country
Customize for different distributions '''
country = None
i = server.find("://")
l = server.find(".archive.ubuntu.com")
if i != -1 and l != -1:
country = server[i + len("://"):l]
if country in self.countries:
# TRANSLATORS: %s is a country
return _("Server for %s") % self.countries[country]
else:
return("%s" % server.rstrip("/ "))
def get_server_list(self):
''' Return a list of used and suggested servers '''
def compare_mirrors(mir1, mir2):
''' Helper function that handles comaprision of mirror urls
that could contain trailing slashes'''
return re.match(mir1.strip("/ "), mir2.rstrip("/ "))
# Store all available servers:
# Name, URI, active
mirrors = []
if (len(self.used_servers) < 1 or
(len(self.used_servers) == 1 and
compare_mirrors(self.used_servers[0], self.main_server))):
mirrors.append([_("Main server"), self.main_server, True])
if self.nearest_server:
mirrors.append([self._get_mirror_name(self.nearest_server),
self.nearest_server, False])
elif (len(self.used_servers) == 1 and not
compare_mirrors(self.used_servers[0], self.main_server)):
mirrors.append([_("Main server"), self.main_server, False])
# Only one server is used
server = self.used_servers[0]
# Append the nearest server if it's not already used
if self.nearest_server:
if not compare_mirrors(server, self.nearest_server):
mirrors.append([self._get_mirror_name(self.nearest_server),
self.nearest_server, False])
if server:
mirrors.append([self._get_mirror_name(server), server, True])
elif len(self.used_servers) > 1:
# More than one server is used. Since we don't handle this case
# in the user interface we set "custom servers" to true and
# append a list of all used servers
mirrors.append([_("Main server"), self.main_server, False])
if self.nearest_server:
mirrors.append([self._get_mirror_name(self.nearest_server),
self.nearest_server, False])
mirrors.append([_("Custom servers"), None, True])
for server in self.used_servers:
mirror_entry = [self._get_mirror_name(server), server, False]
if (compare_mirrors(server, self.nearest_server) or
compare_mirrors(server, self.main_server)):
continue
elif not mirror_entry in mirrors:
mirrors.append(mirror_entry)
return mirrors
def add_source(self, type=None,
uri=None, dist=None, comps=None, comment=""):
"""
Add distribution specific sources
"""
if uri is None:
# FIXME: Add support for the server selector
uri = self.default_server
if dist is None:
dist = self.codename
if comps is None:
comps = list(self.enabled_comps)
if type is None:
type = self.binary_type
new_source = self.sourceslist.add(type, uri, dist, comps, comment)
# if source code is enabled add a deb-src line after the new
# source
if self.get_source_code and type == self.binary_type:
self.sourceslist.add(
self.source_type, uri, dist, comps, comment,
file=new_source.file,
pos=self.sourceslist.list.index(new_source) + 1)
def enable_component(self, comp):
"""
Enable a component in all main, child and source code sources
(excluding cdrom based sources)
comp: the component that should be enabled
"""
comps = set([comp])
# look for parent components that we may have to add
for source in self.main_sources:
for c in source.template.components:
if c.name == comp and c.parent_component:
comps.add(c.parent_component)
for c in comps:
self._enable_component(c)
def _enable_component(self, comp):
def add_component_only_once(source, comps_per_dist):
"""
Check if we already added the component to the repository, since
a repository could be splitted into different apt lines. If not
add the component
"""
# if we don't have that distro, just return (can happen for e.g.
# dapper-update only in deb-src
if source.dist not in comps_per_dist:
return
# if we have seen this component already for this distro,
# return (nothing to do)
if comp in comps_per_dist[source.dist]:
return
# add it
source.comps.append(comp)
comps_per_dist[source.dist].add(comp)
sources = []
sources.extend(self.main_sources)
sources.extend(self.child_sources)
# store what comps are enabled already per distro (where distro is
# e.g. "dapper", "dapper-updates")
comps_per_dist = {}
comps_per_sdist = {}
for s in sources:
if s.type == self.binary_type:
if s.dist not in comps_per_dist:
comps_per_dist[s.dist] = set()
for c in s.comps:
comps_per_dist[s.dist].add(c)
for s in self.source_code_sources:
if s.type == self.source_type:
if s.dist not in comps_per_sdist:
comps_per_sdist[s.dist] = set()
for c in s.comps:
comps_per_sdist[s.dist].add(c)
# check if there is a main source at all
if len(self.main_sources) < 1:
# create a new main source
self.add_source(comps=["%s" % comp])
else:
# add the comp to all main, child and source code sources
for source in sources:
add_component_only_once(source, comps_per_dist)
for source in self.source_code_sources:
add_component_only_once(source, comps_per_sdist)
# check if there is a main source code source at all
if self.get_source_code:
if len(self.source_code_sources) < 1:
# create a new main source
self.add_source(type=self.source_type, comps=["%s" % comp])
else:
# add the comp to all main, child and source code sources
for source in self.source_code_sources:
add_component_only_once(source, comps_per_sdist)
def disable_component(self, comp):
"""
Disable a component in all main, child and source code sources
(excluding cdrom based sources)
"""
sources = []
sources.extend(self.main_sources)
sources.extend(self.child_sources)
sources.extend(self.source_code_sources)
if comp in self.cdrom_comps:
sources = []
sources.extend(self.main_sources)
for source in sources:
if comp in source.comps:
source.comps.remove(comp)
if len(source.comps) < 1:
self.sourceslist.remove(source)
def change_server(self, uri):
''' Change the server of all distro specific sources to
a given host '''
def change_server_of_source(source, uri, seen):
# Avoid creating duplicate entries
source.uri = uri
for comp in source.comps:
if [source.uri, source.dist, comp] in seen:
source.comps.remove(comp)
else:
seen.append([source.uri, source.dist, comp])
if len(source.comps) < 1:
self.sourceslist.remove(source)
seen_binary = []
seen_source = []
self.default_server = uri
for source in self.main_sources:
change_server_of_source(source, uri, seen_binary)
for source in self.child_sources:
# Do not change the forces server of a child source
if (source.template.base_uri is None or
source.template.base_uri != source.uri):
change_server_of_source(source, uri, seen_binary)
for source in self.source_code_sources:
change_server_of_source(source, uri, seen_source)
def is_codename(self, name):
''' Compare a given name with the release codename. '''
if name == self.codename:
return True
else:
return False
class DebianDistribution(Distribution):
''' Class to support specific Debian features '''
def is_codename(self, name):
''' Compare a given name with the release codename and check if
if it can be used as a synonym for a development releases '''
if name == self.codename or self.release in ("testing", "unstable"):
return True
else:
return False
def _get_mirror_name(self, server):
''' Try to get a human readable name for the main mirror of a country
Debian specific '''
country = None
i = server.find("://ftp.")
l = server.find(".debian.org")
if i != -1 and l != -1:
country = server[i + len("://ftp."):l]
if country in self.countries:
# TRANSLATORS: %s is a country
return _("Server for %s") % gettext.dgettext(
"iso_3166", self.countries[country].rstrip()).rstrip()
else:
return("%s" % server.rstrip("/ "))
def get_mirrors(self):
Distribution.get_mirrors(
self, mirror_template="http://ftp.%s.debian.org/debian/")
class UbuntuDistribution(Distribution):
''' Class to support specific Ubuntu features '''
def get_mirrors(self):
Distribution.get_mirrors(
self, mirror_template="http://%s.archive.ubuntu.com/ubuntu/")
def _lsb_release():
"""Call lsb_release --idrc and return a mapping."""
from subprocess import Popen, PIPE
import errno
result = {'Codename': 'sid', 'Distributor ID': 'Debian',
'Description': 'Debian GNU/Linux unstable (sid)',
'Release': 'unstable'}
try:
out = Popen(['lsb_release', '-idrc'], stdout=PIPE).communicate()[0]
# Convert to unicode string, needed for Python 3.1
out = out.decode("utf-8")
result.update(l.split(":\t") for l in out.split("\n") if ':\t' in l)
except OSError as exc:
if exc.errno != errno.ENOENT:
logging.warning('lsb_release failed, using defaults:' % exc)
return result
def get_distro(id=None, codename=None, description=None, release=None):
"""
Check the currently used distribution and return the corresponding
distriubtion class that supports distro specific features.
If no paramter are given the distro will be auto detected via
a call to lsb-release
"""
# make testing easier
if not (id and codename and description and release):
result = _lsb_release()
id = result['Distributor ID']
codename = result['Codename']
description = result['Description']
release = result['Release']
if id == "Ubuntu":
return UbuntuDistribution(id, codename, description, release)
elif id == "Debian":
return DebianDistribution(id, codename, description, release)
else:
return Distribution(id, codename, description, release)
|