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python3.6
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dnf-plugins
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repodiff.py
# repodiff.py # DNF plugin adding a command to show differencies between two sets # of repositories. # # Copyright (C) 2018 Red Hat, Inc. # # This copyrighted material is made available to anyone wishing to use, # modify, copy, or redistribute it subject to the terms and conditions of # the GNU General Public License v.2, or (at your option) any later version. # This program is distributed in the hope that it will be useful, but WITHOUT # ANY WARRANTY expressed or implied, including the implied warranties 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., 51 Franklin Street, Fifth Floor, Boston, MA # 02110-1301, USA. Any Red Hat trademarks that are incorporated in the # source code or documentation are not subject to the GNU General Public # License and may only be used or replicated with the express permission of # Red Hat, Inc. # from __future__ import absolute_import from __future__ import unicode_literals import dnf.cli from dnf.cli.option_parser import OptionParser import hawkey from dnfpluginscore import _ class RepoDiff(dnf.Plugin): name = "repodiff" def __init__(self, base, cli): super(RepoDiff, self).__init__(base, cli) if cli is None: return cli.register_command(RepoDiffCommand) class RepoDiffCommand(dnf.cli.Command): aliases = ("repodiff",) summary = _("List differences between two sets of repositories") @staticmethod def set_argparser(parser): # I'd like to use --old and --new options like Yum did. # But ability to disable abbreviated long options is added # only in Python >= 3.5 # So in command arguments we are not able to use arguments, # which are prefixes of main arguments (i.w. --new would be # treated as --newpackage). This is because we run .parse_args # two times - for main and then for command arguments. # https://stackoverflow.com/questions/33900846 parser.add_argument("--repo-old", "-o", default=[], action="append", dest="old", help=_("Specify old repository, can be used multiple times")) parser.add_argument("--repo-new", "-n", default=[], action="append", dest="new", help=_("Specify new repository, can be used multiple times")) parser.add_argument("--arch", "--archlist", "-a", default=[], action=OptionParser._SplitCallback, dest="arches", help=_("Specify architectures to compare, can be used " "multiple times. By default, only source rpms are " "compared.")) parser.add_argument("--size", "-s", action="store_true", help=_("Output additional data about the size of the changes.")) parser.add_argument("--compare-arch", action="store_true", help=_("Compare packages also by arch. By default " "packages are compared just by name.")) parser.add_argument("--simple", action="store_true", help=_("Output a simple one line message for modified packages.")) parser.add_argument("--downgrade", action="store_true", help=_("Split the data for modified packages between " "upgraded and downgraded packages.")) def configure(self): demands = self.cli.demands demands.sack_activation = True demands.available_repos = True demands.changelogs = True self.base.conf.disable_excludes = ["all"] # TODO yum was able to handle mirrorlist in --new/--old arguments # Can be resolved by improving --repofrompath option if not self.opts.new or not self.opts.old: msg = _("Both old and new repositories must be set.") raise dnf.exceptions.Error(msg) for repo in self.base.repos.all(): if repo.id in self.opts.new + self.opts.old: repo.enable() else: repo.disable() if not self.opts.arches: self.opts.arches = ['src'] def _pkgkey(self, pkg): if self.opts.compare_arch: return (pkg.name, pkg.arch) return pkg.name def _repodiff(self, old, new): '''compares packagesets old and new, returns dictionary with packages: added: only in new set removed: only in old set upgraded: in both old and new, new has bigger evr downgraded: in both old and new, new has lower evr obsoletes: dictionary of which old package is obsoleted by which new ''' old_d = dict([(self._pkgkey(p), p) for p in old]) old_keys = set(old_d.keys()) new_d = dict([(self._pkgkey(p), p) for p in new]) new_keys = set(new_d.keys()) # mapping obsoleted_package_from_old: obsoleted_by_package_from_new obsoletes = dict() for obsoleter in new.filter(obsoletes=old): for obsoleted in old.filter(provides=obsoleter.obsoletes): obsoletes[self._pkgkey(obsoleted)] = obsoleter evr_cmp = self.base.sack.evr_cmp repodiff = dict( added=[new_d[k] for k in new_keys - old_keys], removed=[old_d[k] for k in old_keys - new_keys], obsoletes=obsoletes, upgraded=[], downgraded=[]) for k in old_keys.intersection(new_keys): pkg_old = old_d[k] pkg_new = new_d[k] if pkg_old.evr == pkg_new.evr: continue if evr_cmp(pkg_old.evr, pkg_new.evr) > 0: repodiff['downgraded'].append((pkg_old, pkg_new)) else: repodiff['upgraded'].append((pkg_old, pkg_new)) return repodiff def _report(self, repodiff): def pkgstr(pkg): if self.opts.compare_arch: return str(pkg) return "%s-%s" % (pkg.name, pkg.evr) def sizestr(num): msg = str(num) if num > 0: msg += " ({})".format(dnf.cli.format.format_number(num).strip()) elif num < 0: msg += " (-{})".format(dnf.cli.format.format_number(-num).strip()) return msg def report_modified(pkg_old, pkg_new): msgs = [] if self.opts.simple: msgs.append("%s -> %s" % (pkgstr(pkg_old), pkgstr(pkg_new))) else: msgs.append('') msgs.append("%s -> %s" % (pkgstr(pkg_old), pkgstr(pkg_new))) msgs.append('-' * len(msgs[-1])) if pkg_old.changelogs: old_chlog = pkg_old.changelogs[0] else: old_chlog = None for chlog in pkg_new.changelogs: if old_chlog: if chlog['timestamp'] < old_chlog['timestamp']: break elif (chlog['timestamp'] == old_chlog['timestamp'] and chlog['author'] == old_chlog['author'] and chlog['text'] == old_chlog['text']): break msgs.append('* %s %s\n%s' % ( chlog['timestamp'].strftime("%a %b %d %Y"), dnf.i18n.ucd(chlog['author']), dnf.i18n.ucd(chlog['text']))) if self.opts.size: msgs.append(_("Size change: {} bytes").format( pkg_new.size - pkg_old.size)) print('\n'.join(msgs)) sizes = dict(added=0, removed=0, upgraded=0, downgraded=0) for pkg in sorted(repodiff['added']): print(_("Added package : {}").format(pkgstr(pkg))) sizes['added'] += pkg.size for pkg in sorted(repodiff['removed']): print(_("Removed package: {}").format(pkgstr(pkg))) obsoletedby = repodiff['obsoletes'].get(self._pkgkey(pkg)) if obsoletedby: print(_("Obsoleted by : {}").format(pkgstr(obsoletedby))) sizes['removed'] += pkg.size if self.opts.downgrade: if repodiff['upgraded']: print(_("\nUpgraded packages")) for (pkg_old, pkg_new) in sorted(repodiff['upgraded']): sizes['upgraded'] += (pkg_new.size - pkg_old.size) report_modified(pkg_old, pkg_new) if repodiff['downgraded']: print(_("\nDowngraded packages")) for (pkg_old, pkg_new) in sorted(repodiff['downgraded']): sizes['downgraded'] += (pkg_new.size - pkg_old.size) report_modified(pkg_old, pkg_new) else: modified = repodiff['upgraded'] + repodiff['downgraded'] if modified: print(_("\nModified packages")) for (pkg_old, pkg_new) in sorted(modified): sizes['upgraded'] += (pkg_new.size - pkg_old.size) report_modified(pkg_old, pkg_new) print(_("\nSummary")) print(_("Added packages: {}").format(len(repodiff['added']))) print(_("Removed packages: {}").format(len(repodiff['removed']))) if self.opts.downgrade: print(_("Upgraded packages: {}").format(len(repodiff['upgraded']))) print(_("Downgraded packages: {}").format(len(repodiff['downgraded']))) else: print(_("Modified packages: {}").format( len(repodiff['upgraded']) + len(repodiff['downgraded']))) if self.opts.size: print(_("Size of added packages: {}").format(sizestr(sizes['added']))) print(_("Size of removed packages: {}").format(sizestr(sizes['removed']))) if not self.opts.downgrade: print(_("Size of modified packages: {}").format( sizestr(sizes['upgraded'] + sizes['downgraded']))) else: print(_("Size of upgraded packages: {}").format( sizestr(sizes['upgraded']))) print(_("Size of downgraded packages: {}").format( sizestr(sizes['downgraded']))) print(_("Size change: {}").format( sizestr(sizes['added'] + sizes['upgraded'] + sizes['downgraded'] - sizes['removed']))) def run(self): # prepare old and new packagesets based by given arguments q_new = self.base.sack.query(hawkey.IGNORE_EXCLUDES).filter( reponame=self.opts.new) q_old = self.base.sack.query(hawkey.IGNORE_EXCLUDES).filter( reponame=self.opts.old) if self.opts.arches and '*' not in self.opts.arches: q_new.filterm(arch=self.opts.arches) q_old.filterm(arch=self.opts.arches) if self.opts.compare_arch: q_new.filterm(latest_per_arch=1) q_old.filterm(latest_per_arch=1) else: q_new.filterm(latest=1) q_old.filterm(latest=1) q_new.apply() q_old.apply() self._report(self._repodiff(q_old, q_new))
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