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Beginnings of an OO ubuntutools.archive.SourcePackage
This commit is contained in:
Stefano Rivera
parent
adc2b7869d
commit
5553c11ddd
2
debian/copyright
vendored
2
debian/copyright
vendored
@ -183,11 +183,11 @@ Files: doc/pull-debian-debdiff.1,
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pull-debian-debdiff,
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sponsor-patch,
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suspicious-source,
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ubuntutools/archive.py,
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ubuntutools/builder.py,
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ubuntutools/config.py,
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ubuntutools/control.py,
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ubuntutools/logger.py,
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ubuntutools/mirrors.py,
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ubuntutools/question.py,
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ubuntutools/sponsor_patch/*,
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ubuntutools/test/*,
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@ -18,21 +18,20 @@
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# PERFORMANCE OF THIS SOFTWARE.
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import optparse
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import os.path
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import subprocess
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import sys
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import debian.debian_support
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import debian.changelog
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from ubuntutools.archive import DebianSourcePackage
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from ubuntutools.config import UDTConfig
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from ubuntutools.logger import Logger
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from ubuntutools.mirrors import pull_source_pkg
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def previous_version(package, version, distance):
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"Given an (extracted) package, determine the version distance versions ago"
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upver = version
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if ':' in upver:
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upver = upver.split(':', 1)[1]
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upver = upver.split('-')[0]
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upver = debian.debian_support.Version(version).upstream_version
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filename = '%s-%s/debian/changelog' % (package, upver)
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changelog_file = open(filename, 'r')
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changelog = debian.changelog.Changelog(changelog_file.read())
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@ -78,15 +77,14 @@ def main():
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opts.debian_mirror = config.get_value('DEBIAN_MIRROR')
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if opts.debsec_mirror is None:
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opts.debsec_mirror = config.get_value('DEBSEC_MIRROR')
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mirrors = [opts.debsec_mirror, opts.debian_mirror]
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Logger.normal('Downloading %s %s', package, version)
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# TODO: Not all packages are main, but snapshot.debian.org should save
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# the day, as it doesn't care about component.
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newdsc = pull_source_pkg(('DEBSEC', 'DEBIAN'),
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{'DEBSEC': opts.debsec_mirror,
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'DEBIAN': opts.debian_mirror},
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'main', package, version, unpack=True)
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#TODO: Proper snapshot and security support
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newpkg = DebianSourcePackage(package, version, mirrors=mirrors)
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newpkg.pull()
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newpkg.unpack()
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if opts.fetch_only:
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sys.exit(0)
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@ -96,14 +94,14 @@ def main():
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Logger.error('No previous version could be found')
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sys.exit(1)
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Logger.normal('Downloading %s %s', package, oldversion)
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olddsc = pull_source_pkg(('DEBSEC', 'DEBIAN'),
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{'DEBSEC': opts.debsec_mirror,
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'DEBIAN': opts.debian_mirror},
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'main', package, oldversion, unpack=True)
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cmd = ('debdiff', olddsc, newdsc)
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Logger.command(cmd)
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oldpkg = DebianSourcePackage(package, oldversion, mirrors=mirrors)
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oldpkg.pull()
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oldpkg.unpack()
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cmd = ['debdiff', oldpkg.dsc_name, newpkg.dsc_name]
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difffn = newdsc[:-3] + 'debdiff'
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Logger.command(cmd + ['> %s' % difffn])
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debdiff_file = open(difffn, 'w')
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if subprocess.call(cmd, stdout=debdiff_file) > 2:
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Logger.error('Debdiff failed.')
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@ -112,7 +110,7 @@ def main():
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cmd = ('diffstat', '-p0', difffn)
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Logger.command(cmd)
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subprocess.check_call(cmd)
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print difffn
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print 'file://' + os.path.abspath(difffn)
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if __name__ == '__main__':
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main()
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@ -27,13 +27,13 @@ import os
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import sys
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from optparse import OptionParser
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from ubuntutools.archive import UbuntuSourcePackage
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from ubuntutools.config import UDTConfig
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from ubuntutools.logger import Logger
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from ubuntutools.lp.lpapicache import Distribution, Launchpad
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from ubuntutools.lp.udtexceptions import (SeriesNotFoundException,
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PackageNotFoundException,
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PocketDoesNotExistError)
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from ubuntutools.mirrors import pull_source_pkg
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from ubuntutools.misc import split_release_pocket
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def main():
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@ -83,9 +83,12 @@ def main():
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Logger.error(error)
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sys.exit(1)
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pull_source_pkg('UBUNTU', options.ubuntu_mirror, spph.getComponent(),
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package, spph.getVersion(),
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unpack=not options.download_only)
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srcpkg = UbuntuSourcePackage(package, spph.getVersion(),
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component=spph.getComponent(),
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mirrors=[options.ubuntu_mirror])
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srcpkg.pull()
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if not options.download_only:
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srcpkg.unpack()
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if __name__ == '__main__':
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main()
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362
ubuntutools/archive.py
Normal file
362
ubuntutools/archive.py
Normal file
@ -0,0 +1,362 @@
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# archive.py - Functions for dealing with Debian source packages, archives,
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# and mirrors.
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#
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# Copyright (C) 2010, Stefano Rivera <stefanor@ubuntu.com>
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#
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# Permission to use, copy, modify, and/or distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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# AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
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# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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# OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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# PERFORMANCE OF THIS SOFTWARE.
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"""Pull source packages from archives.
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Approach:
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1. Pull dsc from Launchpad (this is over https and can authenticate the
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rest of the source package)
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2. Attempt to pull the remaining files from:
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1. existing files
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2. mirrors
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3. Launchpad
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3. Verify checksums.
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"""
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import hashlib
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import os.path
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import subprocess
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import urllib2
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import sys
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import debian.deb822
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import debian.debian_support
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from ubuntutools.config import UDTConfig
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from ubuntutools.logger import Logger
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from ubuntutools.lp.lpapicache import Launchpad, Distribution
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class DownloadError(Exception):
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"Unable to pull a source package"
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pass
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class Dsc(debian.deb822.Dsc):
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def get_strongest_checksum(self):
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"Return alg, dict by filename of size, hash_ pairs"
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if 'Checksums-Sha256' in self:
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return ('sha256',
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dict((entry['name'], (int(entry['size']), entry['sha256']))
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for entry in self['Checksums-Sha256']))
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if 'Checksums-Sha1' in self:
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return ('sha1',
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dict((entry['name'], (int(entry['size']), entry['sha1']))
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for entry in self['Checksums-Sha1']))
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return ('md5',
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dict((entry['name'], (int(entry['size']), entry['md5sum']))
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for entry in self['Files']))
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def verify_file(self, pathname):
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"Verify that pathname matches the checksums in the dsc"
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if os.path.isfile(pathname):
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alg, checksums = self.get_strongest_checksum()
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size, digest = checksums[os.path.basename(pathname)]
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if os.path.getsize(pathname) != size:
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return False
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hash_func = getattr(hashlib, alg)()
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f = open(pathname, 'rb')
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while True:
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buf = f.read(hash_func.block_size)
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if buf == '':
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break
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hash_func.update(buf)
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return hash_func.hexdigest() == digest
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return False
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class SourcePackage(object):
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distribution = ''
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def __init__(self, package, version, component=None, lp=None, mirrors=()):
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self.source = package
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self.version = debian.debian_support.Version(version)
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self._component = component
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self._lp = lp
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self._spph = None
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self.mirrors = list(mirrors)
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self.masters = []
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self.workdir = '.'
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@property
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def lp_spph(self):
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"Return the LP Source Package Publishing History entry"
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if not self._spph:
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if not Launchpad.logged_in:
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if self._lp:
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Launchpad.login_existing(self._lp)
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else:
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Launchpad.login_anonymously()
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spph = (Distribution(self.distribution).getArchive()
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.getPublishedSources(
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source_name=self.source,
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version=self.version.full_version,
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exact_match=True,
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))
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self._spph = spph[0]
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return self._spph
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@property
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def component(self):
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"Cached archive component, in available"
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if not self._component:
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Logger.debug('Determining component from Launchpad')
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self._component = self.lp_spph.component_name
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return self._component
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@property
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def dsc_name(self):
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"Return the source package dsc filename for the given package"
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version = self.version.upstream_version
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if self.version.debian_version:
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version += '-' + self.version.debian_version
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return '%s_%s.dsc' % (self.source, version)
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@property
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def dsc_pathname(self):
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"Return the dsc_name, with the workdir path"
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return os.path.join(self.workdir, self.dsc_name)
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def _mirror_url(self, mirror, filename):
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"Build a source package URL on a mirror"
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if self.source.startswith('lib'):
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group = self.source[:4]
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else:
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group = self.source[0]
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return os.path.join(mirror, 'pool', self.component, group,
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self.source, filename)
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def _lp_url(self, filename):
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"Build a source package URL on Launchpad"
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return os.path.join('https://launchpad.net', self.distribution,
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'+archive', 'primary', '+files', filename)
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def download_file(self, url, dsc=None):
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"Download url to pathname"
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filename = os.path.basename(url)
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pathname = os.path.join(self.workdir, filename)
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if dsc:
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if dsc.verify_file(pathname):
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Logger.debug('Using existing %s', filename)
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return True
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size = [entry['size'] for entry in dsc['Files']
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if entry['name'] == filename]
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assert len(size) == 1
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size = int(size[0])
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Logger.normal('Downloading %s (%0.3f MiB)', url,
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size / 1024.0 / 1024)
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else:
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Logger.normal('Downloading %s', url)
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in_ = urllib2.urlopen(url)
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out = open(pathname, 'wb')
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while True:
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block = in_.read(10240)
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if block == '':
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break
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out.write(block)
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sys.stdout.write('.')
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sys.stdout.flush()
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in_.close()
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out.close()
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sys.stdout.write(' done\n')
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sys.stdout.flush()
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if dsc:
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if not dsc.verify_file(pathname):
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Logger.error('Checksum does not match.')
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return False
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return True
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def pull(self):
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"Pull into workdir"
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self.download_file(self._lp_url(self.dsc_name))
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dsc = Dsc(file(self.dsc_pathname, 'rb').read())
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for entry in dsc['Files']:
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name = entry['name']
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for mirror in self.mirrors:
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try:
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if self.download_file(self._mirror_url(mirror, name), dsc):
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break
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except urllib2.HTTPError, e:
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Logger.normal('HTTP Error %i: %s', e.code, str(e))
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except urllib2.URLError, e:
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Logger.normal('URL Error: %s', e.reason)
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else:
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try:
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if not self.download_file(self._lp_url(name), dsc):
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raise DownloadError('Could not find %s anywhere.'
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% name)
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except urllib2.HTTPError, e:
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Logger.normal('HTTP Error %i: %s', e.code, str(e))
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except urllib2.URLError, e:
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Logger.normal('URL Error: %s', e.reason)
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return True
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def unpack(self):
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"Unpack in workdir"
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cmd = ('dpkg-source', '-x', '--require-valid-signature',
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self.dsc_name)
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Logger.command(cmd)
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subprocess.check_call(cmd, cwd=self.workdir)
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class DebianSourcePackage(SourcePackage):
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distribution = 'debian'
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# TODO: Security support
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# TODO: snapshot support
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# TODO: Madison component fallback
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# TODO: GPG verification fallback
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class UbuntuSourcePackage(SourcePackage):
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distribution = 'ubuntu'
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# TODO: Delete everything after this point.
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def pull_source_pkg(archives, mirrors, component, package, version, workdir='.',
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unpack=False):
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"""Download a source package or die.
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archives may be a list or single item (in which case mirrors can be too)
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mirrors should be a dict (keyed on archive) unless archives is single"""
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if not isinstance(archives, (tuple, list)):
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if not isinstance(mirrors, dict):
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mirrors = {archives: mirrors}
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archives = [archives]
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assert all(x in ('DEBIAN', 'DEBSEC', 'UBUNTU') for x in archives)
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for archive in archives:
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filename = try_pull_from_archive(archive, mirrors.get(archive),
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component, package, version,
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workdir, unpack)
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if filename:
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return filename
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if 'DEBIAN' in archives or 'DEBSEC' in archives:
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Logger.info('Trying snapshot.debian.org')
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filename = try_pull_from_snapshot(package, version, workdir, unpack)
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if filename:
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return filename
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if 'UBUNTU' in archives:
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Logger.info('Trying Launchpad')
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filename = try_pull_from_lp(package, 'ubuntu', version, workdir, unpack)
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if filename:
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return filename
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raise Exception('Unable to locate %s/%s %s' % (package, component, version))
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def try_pull_from_archive(archive, mirror, component, package, version,
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workdir='.', unpack=False):
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"""Download a source package from the specified source, return filename.
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Try mirror first, then master.
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"""
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assert archive in ('DEBIAN', 'DEBSEC', 'UBUNTU')
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urls = []
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if mirror and mirror != UDTConfig.defaults[archive + '_MIRROR']:
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urls.append(dsc_url(mirror, component, package, version))
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urls.append(dsc_url(UDTConfig.defaults[archive + '_MIRROR'], component,
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package, version))
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for url in urls:
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cmd = ('dget', '-u' + ('x' if unpack else 'd'), url)
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Logger.command(cmd)
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return_code = subprocess.call(cmd, cwd=workdir)
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if return_code == 0:
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return os.path.basename(url)
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def try_pull_from_snapshot(package, version, workdir='.', unpack=False):
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"""Download Debian source package version version from snapshot.debian.org.
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Return filename.
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"""
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try:
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import json
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except ImportError:
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import simplejson as json
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except ImportError:
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Logger.error("Please install python-simplejson.")
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sys.exit(1)
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try:
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srcfiles = json.load(urllib2.urlopen(
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'http://snapshot.debian.org/mr/package/%s/%s/srcfiles'
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% (package, version)))
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except urllib2.HTTPError:
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Logger.error('Version %s of %s not found on snapshot.debian.org',
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version, package)
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return
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for hash_ in srcfiles['result']:
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hash_ = hash_['hash']
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try:
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info = json.load(urllib2.urlopen(
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'http://snapshot.debian.org/mr/file/%s/info' % hash_))
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except urllib2.URLError:
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Logger.error('Unable to dowload info for hash.')
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return
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filename = info['result'][0]['name']
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if '/' in filename:
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Logger.error('Unacceptable file name: %s', filename)
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return
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pathname = os.path.join(workdir, filename)
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if os.path.exists(pathname):
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source_file = open(pathname, 'r')
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sha1 = hashlib.sha1()
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sha1.update(source_file.read())
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source_file.close()
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if sha1.hexdigest() == hash_:
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Logger.normal('Using existing %s', filename)
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continue
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Logger.normal('Downloading: %s (%0.3f MiB)', filename,
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info['result'][0]['size'] / 1024.0 / 1024)
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try:
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in_ = urllib2.urlopen('http://snapshot.debian.org/file/%s' % hash_)
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out = open(pathname, 'w')
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while True:
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block = in_.read(10240)
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if block == '':
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break
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out.write(block)
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sys.stdout.write('.')
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sys.stdout.flush()
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sys.stdout.write('\n')
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sys.stdout.flush()
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out.close()
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except urllib2.URLError:
|
||||
Logger.error('Error downloading %s', filename)
|
||||
return
|
||||
|
||||
filename = dsc_name(package, version)
|
||||
if unpack:
|
||||
cmd = ('dpkg-source', '--no-check', '-x', filename)
|
||||
Logger.command(cmd)
|
||||
subprocess.check_call(cmd)
|
||||
return filename
|
||||
|
||||
def try_pull_from_lp(package, distro, version, workdir='.', unpack=False):
|
||||
"""Try to download the specified version of a source package from Launchpad.
|
||||
Return filename.
|
||||
"""
|
||||
filename = dsc_name(package, version)
|
||||
url = ('https://launchpad.net/%s/+archive/primary/+files/%s'
|
||||
% (distro, filename))
|
||||
cmd = ('dget', '-u' + ('x' if unpack else 'd'), url)
|
||||
Logger.command(cmd)
|
||||
return_code = subprocess.call(cmd, cwd=workdir)
|
||||
if return_code == 0:
|
||||
return filename
|
||||
@ -1,173 +0,0 @@
|
||||
# mirrors.py - Functions for dealing with Debian source packages and mirrors.
|
||||
#
|
||||
# Copyright (C) 2010, Stefano Rivera <stefanor@ubuntu.com>
|
||||
#
|
||||
# Permission to use, copy, modify, and/or distribute this software for any
|
||||
# purpose with or without fee is hereby granted, provided that the above
|
||||
# copyright notice and this permission notice appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
|
||||
# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
|
||||
# AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
|
||||
# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
|
||||
# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
|
||||
# OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
||||
# PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import hashlib
|
||||
import os.path
|
||||
import subprocess
|
||||
import urllib2
|
||||
import sys
|
||||
|
||||
from ubuntutools.config import UDTConfig
|
||||
from ubuntutools.logger import Logger
|
||||
|
||||
def dsc_name(package, version):
|
||||
"Return the source package dsc filename for the given package"
|
||||
if ':' in version:
|
||||
version = version.split(':', 1)[1]
|
||||
return '%s_%s.dsc' % (package, version)
|
||||
|
||||
def dsc_url(mirror, component, package, version):
|
||||
"Build a source package URL"
|
||||
group = package[:4] if package.startswith('lib') else package[0]
|
||||
filename = dsc_name(package, version)
|
||||
return os.path.join(mirror, 'pool', component, group, package, filename)
|
||||
|
||||
def pull_source_pkg(archives, mirrors, component, package, version, workdir='.',
|
||||
unpack=False):
|
||||
"""Download a source package or die.
|
||||
archives may be a list or single item (in which case mirrors can be too)
|
||||
mirrors should be a dict (keyed on archive) unless archives is single"""
|
||||
|
||||
if not isinstance(archives, (tuple, list)):
|
||||
if not isinstance(mirrors, dict):
|
||||
mirrors = {archives: mirrors}
|
||||
archives = [archives]
|
||||
assert all(x in ('DEBIAN', 'DEBSEC', 'UBUNTU') for x in archives)
|
||||
|
||||
for archive in archives:
|
||||
filename = try_pull_from_archive(archive, mirrors.get(archive),
|
||||
component, package, version,
|
||||
workdir, unpack)
|
||||
if filename:
|
||||
return filename
|
||||
|
||||
if 'DEBIAN' in archives or 'DEBSEC' in archives:
|
||||
Logger.info('Trying snapshot.debian.org')
|
||||
filename = try_pull_from_snapshot(package, version, workdir, unpack)
|
||||
if filename:
|
||||
return filename
|
||||
|
||||
if 'UBUNTU' in archives:
|
||||
Logger.info('Trying Launchpad')
|
||||
filename = try_pull_from_lp(package, 'ubuntu', version, workdir, unpack)
|
||||
if filename:
|
||||
return filename
|
||||
|
||||
raise Exception('Unable to locate %s/%s %s' % (package, component, version))
|
||||
|
||||
def try_pull_from_archive(archive, mirror, component, package, version,
|
||||
workdir='.', unpack=False):
|
||||
"""Download a source package from the specified source, return filename.
|
||||
Try mirror first, then master.
|
||||
"""
|
||||
assert archive in ('DEBIAN', 'DEBSEC', 'UBUNTU')
|
||||
urls = []
|
||||
if mirror and mirror != UDTConfig.defaults[archive + '_MIRROR']:
|
||||
urls.append(dsc_url(mirror, component, package, version))
|
||||
urls.append(dsc_url(UDTConfig.defaults[archive + '_MIRROR'], component,
|
||||
package, version))
|
||||
|
||||
for url in urls:
|
||||
cmd = ('dget', '-u' + ('x' if unpack else 'd'), url)
|
||||
Logger.command(cmd)
|
||||
return_code = subprocess.call(cmd, cwd=workdir)
|
||||
if return_code == 0:
|
||||
return os.path.basename(url)
|
||||
|
||||
def try_pull_from_snapshot(package, version, workdir='.', unpack=False):
|
||||
"""Download Debian source package version version from snapshot.debian.org.
|
||||
Return filename.
|
||||
"""
|
||||
try:
|
||||
import json
|
||||
except ImportError:
|
||||
import simplejson as json
|
||||
except ImportError:
|
||||
Logger.error("Please install python-simplejson.")
|
||||
sys.exit(1)
|
||||
|
||||
try:
|
||||
srcfiles = json.load(urllib2.urlopen(
|
||||
'http://snapshot.debian.org/mr/package/%s/%s/srcfiles'
|
||||
% (package, version)))
|
||||
except urllib2.HTTPError:
|
||||
Logger.error('Version %s of %s not found on snapshot.debian.org',
|
||||
version, package)
|
||||
return
|
||||
|
||||
for hash_ in srcfiles['result']:
|
||||
hash_ = hash_['hash']
|
||||
|
||||
try:
|
||||
info = json.load(urllib2.urlopen(
|
||||
'http://snapshot.debian.org/mr/file/%s/info' % hash_))
|
||||
except urllib2.URLError:
|
||||
Logger.error('Unable to dowload info for hash.')
|
||||
return
|
||||
|
||||
filename = info['result'][0]['name']
|
||||
if '/' in filename:
|
||||
Logger.error('Unacceptable file name: %s', filename)
|
||||
return
|
||||
pathname = os.path.join(workdir, filename)
|
||||
|
||||
if os.path.exists(pathname):
|
||||
source_file = open(pathname, 'r')
|
||||
sha1 = hashlib.sha1()
|
||||
sha1.update(source_file.read())
|
||||
source_file.close()
|
||||
if sha1.hexdigest() == hash_:
|
||||
Logger.normal('Using existing %s', filename)
|
||||
continue
|
||||
|
||||
Logger.normal('Downloading: %s (%0.3f MiB)', filename,
|
||||
info['result'][0]['size'] / 1024.0 / 1024)
|
||||
try:
|
||||
in_ = urllib2.urlopen('http://snapshot.debian.org/file/%s' % hash_)
|
||||
out = open(pathname, 'w')
|
||||
while True:
|
||||
block = in_.read(10240)
|
||||
if block == '':
|
||||
break
|
||||
out.write(block)
|
||||
sys.stdout.write('.')
|
||||
sys.stdout.flush()
|
||||
sys.stdout.write('\n')
|
||||
sys.stdout.flush()
|
||||
out.close()
|
||||
except urllib2.URLError:
|
||||
Logger.error('Error downloading %s', filename)
|
||||
return
|
||||
|
||||
filename = dsc_name(package, version)
|
||||
if unpack:
|
||||
cmd = ('dpkg-source', '--no-check', '-x', filename)
|
||||
Logger.command(cmd)
|
||||
subprocess.check_call(cmd)
|
||||
return filename
|
||||
|
||||
def try_pull_from_lp(package, distro, version, workdir='.', unpack=False):
|
||||
"""Try to download the specified version of a source package from Launchpad.
|
||||
Return filename.
|
||||
"""
|
||||
filename = dsc_name(package, version)
|
||||
url = ('https://launchpad.net/%s/+archive/primary/+files/%s'
|
||||
% (distro, filename))
|
||||
cmd = ('dget', '-u' + ('x' if unpack else 'd'), url)
|
||||
Logger.command(cmd)
|
||||
return_code = subprocess.call(cmd, cwd=workdir)
|
||||
if return_code == 0:
|
||||
return filename
|
||||
Loading…
x
Reference in New Issue
Block a user