mirror of
https://git.launchpad.net/~ubuntu-release/britney/+git/britney2-ubuntu
synced 2025-02-11 06:27:03 +00:00
920d82445d
Hint to allow smooth update, even if the section isn't allowed in the configuration. Note that this takes the source name and the source version IN TESTING of the binaries that must be allowed to stay around to allow a smooth update.
591 lines
29 KiB
Python
591 lines
29 KiB
Python
from itertools import chain
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from urllib.parse import quote
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import apt_pkg
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import logging
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from britney2 import DependencyType, PackageId
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from britney2.excuse import Excuse
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from britney2.excusedeps import DependencySpec
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from britney2.migrationitem import MigrationItem
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from britney2.policies import PolicyVerdict
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from britney2.utils import (invalidate_excuses, find_smooth_updateable_binaries,
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get_dependency_solvers,
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)
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class ExcuseFinder(object):
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def __init__(self, options, suite_info, all_binaries, pkg_universe, policy_engine, mi_factory, hints):
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logger_name = ".".join((self.__class__.__module__, self.__class__.__name__))
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self.logger = logging.getLogger(logger_name)
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self.options = options
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self.suite_info = suite_info
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self.all_binaries = all_binaries
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self.pkg_universe = pkg_universe
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self._policy_engine = policy_engine
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self._migration_item_factory = mi_factory
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self.hints = hints
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self.excuses = {}
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def _should_remove_source(self, item):
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"""Check if a source package should be removed from testing
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This method checks if a source package should be removed from the
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target suite; this happens if the source package is not
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present in the primary source suite anymore.
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It returns True if the package can be removed, False otherwise.
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In the former case, a new excuse is appended to the object
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attribute excuses.
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"""
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if hasattr(self.options, 'partial_source'):
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return False
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# if the source package is available in unstable, then do nothing
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source_suite = self.suite_info.primary_source_suite
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pkg = item.package
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if pkg in source_suite.sources:
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return False
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# otherwise, add a new excuse for its removal
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src = item.suite.sources[pkg]
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excuse = Excuse(item)
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excuse.addinfo("Package not in %s, will try to remove" % source_suite.name)
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excuse.set_vers(src.version, None)
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src.maintainer and excuse.set_maint(src.maintainer)
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src.section and excuse.set_section(src.section)
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# if the package is blocked, skip it
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for hint in self.hints.search('block', package=pkg, removal=True):
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excuse.policy_verdict = PolicyVerdict.REJECTED_PERMANENTLY
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excuse.add_verdict_info(
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excuse.policy_verdict,
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"Not touching package, as requested by %s "
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"(contact debian-release if update is needed)" % hint.user)
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excuse.addreason("block")
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self.excuses[excuse.name] = excuse
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return False
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excuse.policy_verdict = PolicyVerdict.PASS
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self.excuses[excuse.name] = excuse
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return True
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def _should_upgrade_srcarch(self, item):
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"""Check if a set of binary packages should be upgraded
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This method checks if the binary packages produced by the source
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package on the given architecture should be upgraded; this can
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happen also if the migration is a binary-NMU for the given arch.
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It returns False if the given packages don't need to be upgraded,
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True otherwise. In the former case, a new excuse is appended to
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the object attribute excuses.
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"""
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# retrieve the source packages for testing and suite
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target_suite = self.suite_info.target_suite
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source_suite = item.suite
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src = item.package
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arch = item.architecture
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source_t = target_suite.sources[src]
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source_u = source_suite.sources[src]
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excuse = Excuse(item)
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excuse.set_vers(source_t.version, source_t.version)
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source_u.maintainer and excuse.set_maint(source_u.maintainer)
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source_u.section and excuse.set_section(source_u.section)
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# if there is a `remove' hint and the requested version is the same as the
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# version in testing, then stop here and return False
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# (as a side effect, a removal may generate such excuses for both the source
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# package and its binary packages on each architecture)
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for hint in self.hints.search('remove', package=src, version=source_t.version):
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excuse.add_hint(hint)
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excuse.policy_verdict = PolicyVerdict.REJECTED_PERMANENTLY
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excuse.add_verdict_info(excuse.policy_verdict, "Removal request by %s" % (hint.user))
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excuse.add_verdict_info(excuse.policy_verdict, "Trying to remove package, not update it")
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self.excuses[excuse.name] = excuse
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return False
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# the starting point is that there is nothing wrong and nothing worth doing
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anywrongver = False
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anyworthdoing = False
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packages_t_a = target_suite.binaries[arch]
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packages_s_a = source_suite.binaries[arch]
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wrong_verdict = PolicyVerdict.REJECTED_PERMANENTLY
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# for every binary package produced by this source in unstable for this architecture
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for pkg_id in sorted(x for x in source_u.binaries if x.architecture == arch):
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pkg_name = pkg_id.package_name
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# TODO filter binaries based on checks below?
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excuse.add_package(pkg_id)
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# retrieve the testing (if present) and unstable corresponding binary packages
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binary_t = packages_t_a[pkg_name] if pkg_name in packages_t_a else None
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binary_u = packages_s_a[pkg_name]
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# this is the source version for the new binary package
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pkgsv = binary_u.source_version
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# if the new binary package is architecture-independent, then skip it
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if binary_u.architecture == 'all':
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if pkg_id not in source_t.binaries:
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# only add a note if the arch:all does not match the expected version
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excuse.add_detailed_info("Ignoring %s %s (from %s) as it is arch: all" % (pkg_name, binary_u.version, pkgsv))
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continue
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# if the new binary package is not from the same source as the testing one, then skip it
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# this implies that this binary migration is part of a source migration
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if source_u.version == pkgsv and source_t.version != pkgsv:
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anywrongver = True
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excuse.add_verdict_info(
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wrong_verdict,
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"From wrong source: %s %s (%s not %s)" %
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(pkg_name, binary_u.version, pkgsv, source_t.version))
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continue
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# cruft in unstable
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if source_u.version != pkgsv and source_t.version != pkgsv:
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if self.options.ignore_cruft:
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excuse.add_detailed_info("Old cruft: %s %s (but ignoring cruft, so nevermind)" % (pkg_name, pkgsv))
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else:
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anywrongver = True
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excuse.add_verdict_info(wrong_verdict, "Old cruft: %s %s" % (pkg_name, pkgsv))
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continue
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# if the source package has been updated in unstable and this is a binary migration, skip it
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# (the binaries are now out-of-date)
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if source_t.version == pkgsv and source_t.version != source_u.version:
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anywrongver = True
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excuse.add_verdict_info(
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wrong_verdict,
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"From wrong source: %s %s (%s not %s)" %
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(pkg_name, binary_u.version, pkgsv, source_u.version))
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continue
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# if the binary is not present in testing, then it is a new binary;
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# in this case, there is something worth doing
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if not binary_t:
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excuse.add_detailed_info("New binary: %s (%s)" % (pkg_name, binary_u.version))
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anyworthdoing = True
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continue
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# at this point, the binary package is present in testing, so we can compare
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# the versions of the packages ...
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vcompare = apt_pkg.version_compare(binary_t.version, binary_u.version)
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# ... if updating would mean downgrading, then stop here: there is something wrong
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if vcompare > 0:
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anywrongver = True
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excuse.add_verdict_info(
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wrong_verdict,
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"Not downgrading: %s (%s to %s)" % (pkg_name, binary_t.version, binary_u.version))
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break
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# ... if updating would mean upgrading, then there is something worth doing
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elif vcompare < 0:
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excuse.add_detailed_info("Updated binary: %s (%s to %s)" % (pkg_name, binary_t.version, binary_u.version))
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anyworthdoing = True
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srcv = source_u.version
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same_source = source_t.version == srcv
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primary_source_suite = self.suite_info.primary_source_suite
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is_primary_source = source_suite == primary_source_suite
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# if there is nothing wrong and there is something worth doing or the source
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# package is not fake, then check what packages should be removed
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if not anywrongver and (anyworthdoing or not source_u.is_fakesrc):
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# we want to remove binaries that are no longer produced by the
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# new source, but there are some special cases:
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# - if this is binary-only (same_source) and not from the primary
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# source, we don't do any removals:
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# binNMUs in *pu on some architectures would otherwise result in
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# the removal of binaries on other architectures
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# - for the primary source, smooth binaries in the target suite
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# are not considered for removal
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if not same_source or is_primary_source:
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smoothbins = set()
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if is_primary_source:
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binaries_t = target_suite.binaries
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possible_smooth_updates = [p for p in source_t.binaries if p.architecture == arch]
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smoothbins = find_smooth_updateable_binaries(possible_smooth_updates,
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source_u,
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self.pkg_universe,
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target_suite,
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binaries_t,
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source_suite.binaries,
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frozenset(),
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self.options.smooth_updates,
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self.hints)
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# for every binary package produced by this source in testing for this architecture
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for pkg_id in sorted(x for x in source_t.binaries if x.architecture == arch):
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pkg = pkg_id.package_name
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# if the package is architecture-independent, then ignore it
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tpkg_data = packages_t_a[pkg]
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if tpkg_data.architecture == 'all':
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if pkg_id not in source_u.binaries:
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# only add a note if the arch:all does not match the expected version
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excuse.add_detailed_info("Ignoring removal of %s as it is arch: all" % (pkg))
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continue
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# if the package is not produced by the new source package, then remove it from testing
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if pkg not in packages_s_a:
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excuse.add_detailed_info("Removed binary: %s %s" % (pkg, tpkg_data.version))
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# the removed binary is only interesting if this is a binary-only migration,
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# as otherwise the updated source will already cause the binary packages
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# to be updated
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if same_source and pkg_id not in smoothbins:
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# Special-case, if the binary is a candidate for a smooth update, we do not consider
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# it "interesting" on its own. This case happens quite often with smooth updatable
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# packages, where the old binary "survives" a full run because it still has
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# reverse dependencies.
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anyworthdoing = True
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if not anyworthdoing:
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# nothing worth doing, we don't add an excuse to the list, we just return false
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return False
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# there is something worth doing
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# we assume that this package will be ok, if not invalidated below
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excuse.policy_verdict = PolicyVerdict.PASS
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# if there is something something wrong, reject this package
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if anywrongver:
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excuse.policy_verdict = wrong_verdict
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self._policy_engine.apply_srcarch_policies(item, arch, source_t, source_u, excuse)
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self.excuses[excuse.name] = excuse
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return excuse.is_valid
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def _should_upgrade_src(self, item):
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"""Check if source package should be upgraded
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This method checks if a source package should be upgraded. The analysis
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is performed for the source package specified by the `src' parameter,
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for the distribution `source_suite'.
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It returns False if the given package doesn't need to be upgraded,
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True otherwise. In the former case, a new excuse is appended to
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the object attribute excuses.
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"""
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src = item.package
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source_suite = item.suite
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suite_name = source_suite.name
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source_u = source_suite.sources[src]
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if source_u.is_fakesrc:
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# it is a fake package created to satisfy Britney implementation details; silently ignore it
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return False
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target_suite = self.suite_info.target_suite
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# retrieve the source packages for testing (if available) and suite
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if src in target_suite.sources:
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source_t = target_suite.sources[src]
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# if testing and unstable have the same version, then this is a candidate for binary-NMUs only
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if apt_pkg.version_compare(source_t.version, source_u.version) == 0:
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return False
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else:
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source_t = None
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excuse = Excuse(item)
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excuse.set_vers(source_t and source_t.version or None, source_u.version)
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source_u.maintainer and excuse.set_maint(source_u.maintainer)
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source_u.section and excuse.set_section(source_u.section)
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excuse.add_package(PackageId(src, source_u.version, "source"))
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# if the version in unstable is older, then stop here with a warning in the excuse and return False
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if source_t and apt_pkg.version_compare(source_u.version, source_t.version) < 0:
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excuse.policy_verdict = PolicyVerdict.REJECTED_PERMANENTLY
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excuse.add_verdict_info(
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excuse.policy_verdict,
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"ALERT: %s is newer in the target suite (%s %s)" % (src, source_t.version, source_u.version))
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self.excuses[excuse.name] = excuse
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excuse.addreason("newerintesting")
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return False
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# the starting point is that we will update the candidate
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excuse.policy_verdict = PolicyVerdict.PASS
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# if there is a `remove' hint and the requested version is the same as the
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# version in testing, then stop here and return False
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for hint in self.hints.search('remove', package=src):
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if source_t and source_t.version == hint.version or \
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source_u.version == hint.version:
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excuse.add_hint(hint)
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excuse.policy_verdict = PolicyVerdict.REJECTED_PERMANENTLY
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excuse.add_verdict_info(excuse.policy_verdict, "Removal request by %s" % (hint.user))
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excuse.add_verdict_info(excuse.policy_verdict, "Trying to remove package, not update it")
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break
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all_binaries = self.all_binaries
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# at this point, we check the status of the builds on all the supported architectures
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# to catch the out-of-date ones
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archs_to_consider = list(self.options.architectures)
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archs_to_consider.append('all')
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for arch in archs_to_consider:
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oodbins = {}
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uptodatebins = False
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# for every binary package produced by this source in the suite for this architecture
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if arch == 'all':
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consider_binaries = source_u.binaries
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else:
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# Will also include arch:all for the given architecture (they are filtered out
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# below)
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consider_binaries = sorted(x for x in source_u.binaries if x.architecture == arch)
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for pkg_id in consider_binaries:
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pkg = pkg_id.package_name
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# retrieve the binary package and its source version
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binary_u = all_binaries[pkg_id]
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pkgsv = binary_u.source_version
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# arch:all packages are treated separately from arch:arch
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if binary_u.architecture != arch:
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continue
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# TODO filter binaries based on checks below?
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excuse.add_package(pkg_id)
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# if it wasn't built by the same source, it is out-of-date
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# if there is at least one binary on this arch which is
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# up-to-date, there is a build on this arch
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if source_u.version != pkgsv:
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if pkgsv not in oodbins:
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oodbins[pkgsv] = set()
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oodbins[pkgsv].add(pkg)
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excuse.add_old_binary(pkg, pkgsv)
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continue
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else:
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uptodatebins = True
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# if there are out-of-date packages, warn about them in the excuse and set excuse.is_valid
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# to False to block the update; if the architecture where the package is out-of-date is
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# in the `outofsync_arches' list, then do not block the update
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if oodbins:
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oodtxt = ""
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for v in sorted(oodbins):
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if oodtxt:
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oodtxt = oodtxt + "; "
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oodtxt = oodtxt + "%s (from <a href=\"https://buildd.debian.org/status/logs.php?" \
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"arch=%s&pkg=%s&ver=%s\" target=\"_blank\">%s</a>)" % \
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(", ".join(sorted(oodbins[v])), quote(arch), quote(src), quote(v), v)
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if uptodatebins:
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text = "old binaries left on <a href=\"https://buildd.debian.org/status/logs.php?" \
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"arch=%s&pkg=%s&ver=%s\" target=\"_blank\">%s</a>: %s" % \
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(quote(arch), quote(src), quote(source_u.version), arch, oodtxt)
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else:
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text = "missing build on <a href=\"https://buildd.debian.org/status/logs.php?" \
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"arch=%s&pkg=%s&ver=%s\" target=\"_blank\">%s</a>" % \
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(quote(arch), quote(src), quote(source_u.version), arch)
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if arch in self.options.outofsync_arches:
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text = text + " (but %s isn't keeping up, so nevermind)" % (arch)
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if not uptodatebins:
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excuse.missing_build_on_ood_arch(arch)
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else:
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if uptodatebins:
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if self.options.ignore_cruft:
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text = text + " (but ignoring cruft, so nevermind)"
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excuse.add_detailed_info(text)
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else:
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excuse.policy_verdict = PolicyVerdict.REJECTED_PERMANENTLY
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excuse.addreason("cruft")
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excuse.add_verdict_info(excuse.policy_verdict, text)
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else:
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excuse.policy_verdict = PolicyVerdict.REJECTED_CANNOT_DETERMINE_IF_PERMANENT
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excuse.missing_build_on_arch(arch)
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excuse.addreason("missingbuild")
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excuse.add_verdict_info(excuse.policy_verdict, text)
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excuse.add_detailed_info("old binaries on %s: %s" % (arch, oodtxt))
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# if the source package has no binaries, set is_valid to False to block the update
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if not source_u.binaries:
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excuse.policy_verdict = PolicyVerdict.REJECTED_PERMANENTLY
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excuse.add_verdict_info(excuse.policy_verdict, "%s has no binaries on any arch" % src)
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excuse.addreason("no-binaries")
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self._policy_engine.apply_src_policies(item, source_t, source_u, excuse)
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if source_suite.suite_class.is_additional_source and source_t:
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# o-o-d(ish) checks for (t-)p-u
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# This only makes sense if the package is actually in testing.
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for arch in self.options.architectures:
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# if the package in testing has no binaries on this
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# architecture, it can't be out-of-date
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if not any(x for x in source_t.binaries
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if x.architecture == arch and all_binaries[x].architecture != 'all'):
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continue
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# if the (t-)p-u package has produced any binaries on
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# this architecture then we assume it's ok. this allows for
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# uploads to (t-)p-u which intentionally drop binary
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# packages
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if any(x for x in source_suite.binaries[arch].values()
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if x.source == src and x.source_version == source_u.version and x.architecture != 'all'):
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continue
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# TODO: Find a way to avoid hardcoding pu/stable relation.
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if suite_name == 'pu':
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base = 'stable'
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else:
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base = target_suite.name
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text = "Not yet built on "\
|
|
"<a href=\"https://buildd.debian.org/status/logs.php?"\
|
|
"arch=%s&pkg=%s&ver=%s&suite=%s\" target=\"_blank\">%s</a> "\
|
|
"(relative to target suite)" % \
|
|
(quote(arch), quote(src), quote(source_u.version), base, arch)
|
|
|
|
if arch in self.options.outofsync_arches:
|
|
text = text + " (but %s isn't keeping up, so never mind)" % (arch)
|
|
excuse.missing_build_on_ood_arch(arch)
|
|
excuse.addinfo(text)
|
|
else:
|
|
excuse.policy_verdict = PolicyVerdict.REJECTED_CANNOT_DETERMINE_IF_PERMANENT
|
|
excuse.missing_build_on_arch(arch)
|
|
excuse.addreason("missingbuild")
|
|
excuse.add_verdict_info(excuse.policy_verdict, text)
|
|
|
|
# check if there is a `force' hint for this package, which allows it to go in even if it is not updateable
|
|
forces = self.hints.search('force', package=src, version=source_u.version)
|
|
if forces:
|
|
# force() updates the final verdict for us
|
|
changed_state = excuse.force()
|
|
if changed_state:
|
|
excuse.addinfo("Should ignore, but forced by %s" % (forces[0].user))
|
|
|
|
self.excuses[excuse.name] = excuse
|
|
return excuse.is_valid
|
|
|
|
def _compute_excuses_and_initial_actionable_items(self):
|
|
# list of local methods and variables (for better performance)
|
|
excuses = self.excuses
|
|
suite_info = self.suite_info
|
|
pri_source_suite = suite_info.primary_source_suite
|
|
architectures = self.options.architectures
|
|
should_remove_source = self._should_remove_source
|
|
should_upgrade_srcarch = self._should_upgrade_srcarch
|
|
should_upgrade_src = self._should_upgrade_src
|
|
mi_factory = self._migration_item_factory
|
|
|
|
sources_ps = pri_source_suite.sources
|
|
sources_t = suite_info.target_suite.sources
|
|
|
|
# this set will contain the packages which are valid candidates;
|
|
# if a package is going to be removed, it will have a "-" prefix
|
|
actionable_items = set()
|
|
actionable_items_add = actionable_items.add # Every . in a loop slows it down
|
|
|
|
# for every source package in testing, check if it should be removed
|
|
for pkg in sources_t:
|
|
if pkg not in sources_ps:
|
|
src = sources_t[pkg]
|
|
item = MigrationItem(package=pkg,
|
|
version=src.version,
|
|
suite=suite_info.target_suite,
|
|
is_removal=True)
|
|
if should_remove_source(item):
|
|
actionable_items_add(item)
|
|
|
|
# for every source package in the source suites, check if it should be upgraded
|
|
for suite in chain((pri_source_suite, *suite_info.additional_source_suites)):
|
|
sources_s = suite.sources
|
|
item_suffix = "_%s" % suite.excuses_suffix if suite.excuses_suffix else ''
|
|
for pkg in sources_s:
|
|
src_s_data = sources_s[pkg]
|
|
if src_s_data.is_fakesrc:
|
|
continue
|
|
src_t_data = sources_t.get(pkg)
|
|
|
|
if src_t_data is None or apt_pkg.version_compare(src_s_data.version, src_t_data.version) != 0:
|
|
item = MigrationItem(package=pkg,
|
|
version=src_s_data.version,
|
|
suite=suite)
|
|
# check if the source package should be upgraded
|
|
if should_upgrade_src(item):
|
|
actionable_items_add(item)
|
|
else:
|
|
# package has same version in source and target suite; check if any of the
|
|
# binaries have changed on the various architectures
|
|
for arch in architectures:
|
|
item = MigrationItem(package=pkg,
|
|
version=src_s_data.version,
|
|
architecture=arch,
|
|
suite=suite)
|
|
if should_upgrade_srcarch(item):
|
|
actionable_items_add(item)
|
|
|
|
# process the `remove' hints, if the given package is not yet in actionable_items
|
|
for hint in self.hints['remove']:
|
|
src = hint.package
|
|
if src not in sources_t:
|
|
continue
|
|
|
|
existing_items = set(x for x in actionable_items if x.package == src)
|
|
if existing_items:
|
|
self.logger.info("removal hint '%s' ignored due to existing item(s) %s" %
|
|
(hint, [i.name for i in existing_items]))
|
|
continue
|
|
|
|
tsrcv = sources_t[src].version
|
|
item = MigrationItem(package=src,
|
|
version=tsrcv,
|
|
suite=suite_info.target_suite,
|
|
is_removal=True)
|
|
|
|
# check if the version specified in the hint is the same as the considered package
|
|
if tsrcv != hint.version:
|
|
continue
|
|
|
|
# add the removal of the package to actionable_items and build a new excuse
|
|
excuse = Excuse(item)
|
|
excuse.set_vers(tsrcv, None)
|
|
excuse.addinfo("Removal request by %s" % (hint.user))
|
|
# if the removal of the package is blocked, skip it
|
|
blocked = False
|
|
for blockhint in self.hints.search('block', package=src, removal=True):
|
|
excuse.policy_verdict = PolicyVerdict.REJECTED_PERMANENTLY
|
|
excuse.add_verdict_info(
|
|
excuse.policy_verdict,
|
|
"Not removing package, due to block hint by %s "
|
|
"(contact debian-release if update is needed)" % blockhint.user)
|
|
excuse.addreason("block")
|
|
blocked = True
|
|
|
|
if blocked:
|
|
excuses[excuse.name] = excuse
|
|
continue
|
|
|
|
actionable_items_add(item)
|
|
excuse.addinfo("Package is broken, will try to remove")
|
|
excuse.add_hint(hint)
|
|
# Using "PASS" here as "Created by a hint" != "accepted due to hint". In a future
|
|
# where there might be policy checks on removals, it would make sense to distinguish
|
|
# those two states. Not sure that future will ever be.
|
|
excuse.policy_verdict = PolicyVerdict.PASS
|
|
excuses[excuse.name] = excuse
|
|
|
|
return actionable_items
|
|
|
|
def find_actionable_excuses(self):
|
|
excuses = self.excuses
|
|
actionable_items = self._compute_excuses_and_initial_actionable_items()
|
|
valid = {x.name for x in actionable_items}
|
|
|
|
# extract the not considered packages, which are in the excuses but not in upgrade_me
|
|
unconsidered = {ename for ename in excuses if ename not in valid}
|
|
invalidated = set()
|
|
|
|
invalidate_excuses(excuses, valid, unconsidered, invalidated)
|
|
|
|
# check that the list of actionable items matches the list of valid
|
|
# excuses
|
|
assert valid == {x for x in excuses if excuses[x].is_valid}
|
|
|
|
# check that the rdeps for all invalid excuses were invalidated
|
|
assert invalidated == {x for x in excuses if not excuses[x].is_valid}
|
|
|
|
actionable_items = {x for x in actionable_items if x.name in valid}
|
|
return excuses, actionable_items
|