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Move invalidate_exuses to utils

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Signed-off-by: Niels Thykier <niels@thykier.net>
This commit is contained in:
Niels Thykier 2016-11-16 07:23:58 +00:00
parent 20f2e27873
commit 06504f2ae7
2 changed files with 45 additions and 53 deletions
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55
britney.py
View File

@ -207,6 +207,7 @@ from britney2.utils import (old_libraries_format, undo_changes,
clone_nuninst, check_installability,
create_provides_map, read_release_file,
read_sources_file, get_dependency_solvers,
invalidate_excuses,
)
__author__ = 'Fabio Tranchitella and the Debian Release Team'
@ -1507,58 +1508,6 @@ class Britney(object):
self.excuses[excuse.name] = excuse
return excuse.is_valid
def reversed_exc_deps(self):
"""Reverse the excuses dependencies
This method returns a dictionary where the keys are the package names
and the values are the excuse names which depend on it.
"""
res = defaultdict(list)
for exc in self.excuses.values():
for d in exc.deps:
res[d].append(exc.name)
return res
def invalidate_excuses(self, valid, invalid):
"""Invalidate impossible excuses
This method invalidates the impossible excuses, which depend
on invalid excuses. The two parameters contains the list of
`valid' and `invalid' excuses.
"""
excuses = self.excuses
# build the reverse dependencies
revdeps = self.reversed_exc_deps()
# loop on the invalid excuses
i = 0
while i < len(invalid):
# if there is no reverse dependency, skip the item
if invalid[i] not in revdeps:
i += 1
continue
# if the dependency can be satisfied by a testing-proposed-updates excuse, skip the item
if (invalid[i] + "_tpu") in valid:
i += 1
continue
# loop on the reverse dependencies
for x in revdeps[invalid[i]]:
# if the item is valid and it is marked as `dontinvalidate', skip the item
if x in valid and excuses[x].dontinvalidate:
continue
# otherwise, invalidate the dependency and mark as invalidated and
# remove the depending excuses
excuses[x].invalidate_dep(invalid[i])
if x in valid:
p = valid.index(x)
invalid.append(valid.pop(p))
excuses[x].addhtml("Invalidated by dependency")
excuses[x].addreason("depends")
excuses[x].is_valid = False
i = i + 1
def write_excuses(self):
"""Produce and write the update excuses
@ -1678,7 +1627,7 @@ class Britney(object):
if not ok:
e.addhtml("Impossible dependency: %s -> %s" % (e.name, d))
e.addreason("depends")
self.invalidate_excuses(upgrade_me, unconsidered)
invalidate_excuses(excuses, upgrade_me, unconsidered)
# sort the list of candidates
self.upgrade_me = sorted( make_migrationitem(x, self.sources) for x in upgrade_me )

43
britney2/utils.py
View File

@ -776,3 +776,46 @@ def get_dependency_solvers(block, binaries_s_a, provides_s_a, *, empty_set=froze
packages.append(prov)
return packages
def invalidate_excuses(excuses, valid, invalid):
"""Invalidate impossible excuses
This method invalidates the impossible excuses, which depend
on invalid excuses. The two parameters contains the list of
`valid' and `invalid' excuses.
"""
# build the reverse dependencies
revdeps = defaultdict(list)
for exc in excuses.values():
for d in exc.deps:
revdeps[d].append(exc.name)
# loop on the invalid excuses
i = 0
while i < len(invalid):
# if there is no reverse dependency, skip the item
if invalid[i] not in revdeps:
i += 1
continue
# if the dependency can be satisfied by a testing-proposed-updates excuse, skip the item
if (invalid[i] + "_tpu") in valid:
i += 1
continue
# loop on the reverse dependencies
for x in revdeps[invalid[i]]:
# if the item is valid and it is marked as `dontinvalidate', skip the item
if x in valid and excuses[x].dontinvalidate:
continue
# otherwise, invalidate the dependency and mark as invalidated and
# remove the depending excuses
excuses[x].invalidate_dep(invalid[i])
if x in valid:
p = valid.index(x)
invalid.append(valid.pop(p))
excuses[x].addhtml("Invalidated by dependency")
excuses[x].addreason("depends")
excuses[x].is_valid = False
i += 1