Signed-off-by: Niels Thykier <niels@thykier.net>ubuntu/rebased
Niels Thykier
6 years ago
parent
deb9482a2f
commit
7efa865a04
@ -0,0 +1,393 @@
|
||||
from abc import abstractmethod
|
||||
import apt_pkg
|
||||
import logging
|
||||
import os
|
||||
import sys
|
||||
|
||||
from britney2 import SuiteClass, Suite, TargetSuite, Suites, BinaryPackage, BinaryPackageId, SourcePackage
|
||||
from britney2.utils import (
|
||||
read_release_file, possibly_compressed, read_sources_file, create_provides_map, parse_provides
|
||||
)
|
||||
|
||||
|
||||
class MissingRequiredConfigurationError(RuntimeError):
|
||||
pass
|
||||
|
||||
|
||||
class SuiteContentLoader(object):
|
||||
|
||||
def __init__(self, base_config):
|
||||
self._base_config = base_config
|
||||
self._architectures = SuiteContentLoader.config_str_as_list(base_config.architectures)
|
||||
self._nobreakall_arches = SuiteContentLoader.config_str_as_list(base_config.nobreakall_arches, [])
|
||||
self._outofsync_arches = SuiteContentLoader.config_str_as_list(base_config.outofsync_arches, [])
|
||||
self._break_arches = SuiteContentLoader.config_str_as_list(base_config.break_arches, [])
|
||||
self._new_arches = SuiteContentLoader.config_str_as_list(base_config.new_arches, [])
|
||||
self._components = SuiteContentLoader.config_str_as_list(base_config.components)
|
||||
self._all_binaries = {}
|
||||
logger_name = ".".join((self.__class__.__module__, self.__class__.__name__))
|
||||
self.logger = logging.getLogger(logger_name)
|
||||
|
||||
@staticmethod
|
||||
def config_str_as_list(value, default_value=None):
|
||||
if value is None:
|
||||
return default_value
|
||||
if isinstance(value, str):
|
||||
return value.split()
|
||||
return value
|
||||
|
||||
@property
|
||||
def architectures(self):
|
||||
return self._architectures
|
||||
|
||||
@property
|
||||
def nobreakall_arches(self):
|
||||
return self._nobreakall_arches
|
||||
|
||||
@property
|
||||
def outofsync_arches(self):
|
||||
return self._outofsync_arches
|
||||
|
||||
@property
|
||||
def break_arches(self):
|
||||
return self._break_arches
|
||||
|
||||
@property
|
||||
def new_arches(self):
|
||||
return self._new_arches
|
||||
|
||||
@property
|
||||
def components(self):
|
||||
return self._components
|
||||
|
||||
def all_binaries(self):
|
||||
return self._all_binaries
|
||||
|
||||
@abstractmethod
|
||||
def load_suites(self):
|
||||
pass
|
||||
|
||||
|
||||
class DebMirrorLikeSuiteContentLoader(SuiteContentLoader):
|
||||
|
||||
CHECK_FIELDS = [
|
||||
'section',
|
||||
'source',
|
||||
'source_version',
|
||||
'architecture',
|
||||
'multi_arch',
|
||||
'depends',
|
||||
'conflicts',
|
||||
'provides',
|
||||
]
|
||||
|
||||
def load_suites(self):
|
||||
suites = []
|
||||
target_suite = None
|
||||
missing_config_msg = "Configuration %s is not set in the config (and cannot be auto-detected)"
|
||||
for suite in ('testing', 'unstable', 'pu', 'tpu'):
|
||||
suffix = suite if suite in {'pu', 'tpu'} else ''
|
||||
if hasattr(self._base_config, suite):
|
||||
suite_path = getattr(self._base_config, suite)
|
||||
suite_class = SuiteClass.TARGET_SUITE
|
||||
if suite != 'testing':
|
||||
suite_class = SuiteClass.ADDITIONAL_SOURCE_SUITE if suffix else SuiteClass.PRIMARY_SOURCE_SUITE
|
||||
suites.append(Suite(suite_class, suite, suite_path, suite_short_name=suffix))
|
||||
else:
|
||||
target_suite = TargetSuite(suite_class, suite, suite_path, suite_short_name=suffix)
|
||||
suites.append(target_suite)
|
||||
else:
|
||||
if suite in {'testing', 'unstable'}: # pragma: no cover
|
||||
self.logger.error(missing_config_msg, suite.upper())
|
||||
raise MissingRequiredConfigurationError(missing_config_msg % suite.upper())
|
||||
# self.suite_info[suite] = SuiteInfo(name=suite, path=None, excuses_suffix=suffix)
|
||||
self.logger.info("Optional suite %s is not defined (config option: %s) ", suite, suite.upper())
|
||||
|
||||
assert target_suite is not None
|
||||
|
||||
self._check_release_file(target_suite, missing_config_msg)
|
||||
|
||||
allarches = self._architectures
|
||||
arches = [x for x in allarches if x in self._nobreakall_arches]
|
||||
arches += [x for x in allarches if x not in arches and x not in self._outofsync_arches]
|
||||
arches += [x for x in allarches if x not in arches and x not in self._break_arches]
|
||||
arches += [x for x in allarches if x not in arches and x not in self._new_arches]
|
||||
arches += [x for x in allarches if x not in arches]
|
||||
|
||||
# Intern architectures for efficiency
|
||||
self._architectures = [sys.intern(arch) for arch in allarches]
|
||||
|
||||
# read the source and binary packages for the involved distributions. Notes:
|
||||
# - Load testing last as some live-data tests have more complete information in
|
||||
# unstable
|
||||
# - Load all sources before any of the binaries.
|
||||
for suite in suites:
|
||||
sources = self._read_sources(suite.path)
|
||||
suite.sources = sources
|
||||
(suite.binaries, suite.provides_table) = self._read_binaries(suite, self._architectures)
|
||||
|
||||
return Suites(suites[0], suites[1:])
|
||||
|
||||
def _check_release_file(self, target_suite, missing_config_msg):
|
||||
try:
|
||||
release_file = read_release_file(target_suite.path)
|
||||
self.logger.info("Found a Release file in %s - using that for defaults", target_suite.name)
|
||||
except FileNotFoundError:
|
||||
self.logger.info("The %s suite does not have a Release file.", target_suite.name)
|
||||
release_file = None
|
||||
|
||||
if self._components is None and release_file is not None:
|
||||
self._components = release_file['Components'].split()
|
||||
self.logger.info("Using components listed in Release file: %s", ' '.join(self._components))
|
||||
|
||||
if self._architectures is None:
|
||||
if release_file is None:
|
||||
self.logger.error("No configured architectures and there is no release file in the %s suite.",
|
||||
target_suite.name)
|
||||
self.logger.error("Please check if there is a \"Release\" file in %s",
|
||||
target_suite.path)
|
||||
self.logger.error("or if the config file contains a non-empty \"ARCHITECTURES\" field")
|
||||
raise MissingRequiredConfigurationError(missing_config_msg % "ARCHITECTURES")
|
||||
self._architectures = sorted(release_file['Architectures'].split())
|
||||
self.logger.info("Using architectures listed in Release file: %s", ' '.join(self._architectures))
|
||||
|
||||
def _read_sources(self, basedir):
|
||||
"""Read the list of source packages from the specified directory
|
||||
|
||||
The source packages are read from the `Sources' file within the
|
||||
directory specified as `basedir' parameter. Considering the
|
||||
large amount of memory needed, not all the fields are loaded
|
||||
in memory. The available fields are Version, Maintainer and Section.
|
||||
|
||||
The method returns a list where every item represents a source
|
||||
package as a dictionary.
|
||||
"""
|
||||
|
||||
if self._components:
|
||||
sources = {}
|
||||
for component in self._components:
|
||||
filename = os.path.join(basedir, component, "source", "Sources")
|
||||
filename = possibly_compressed(filename)
|
||||
self.logger.info("Loading source packages from %s", filename)
|
||||
read_sources_file(filename, sources)
|
||||
else:
|
||||
filename = os.path.join(basedir, "Sources")
|
||||
self.logger.info("Loading source packages from %s", filename)
|
||||
sources = read_sources_file(filename)
|
||||
|
||||
return sources
|
||||
|
||||
def _read_packages_file(self, filename, arch, srcdist, packages=None, intern=sys.intern):
|
||||
self.logger.info("Loading binary packages from %s", filename)
|
||||
|
||||
if packages is None:
|
||||
packages = {}
|
||||
|
||||
all_binaries = self._all_binaries
|
||||
|
||||
tag_file = apt_pkg.TagFile(filename)
|
||||
get_field = tag_file.section.get
|
||||
step = tag_file.step
|
||||
|
||||
while step():
|
||||
pkg = get_field('Package')
|
||||
version = get_field('Version')
|
||||
|
||||
# There may be multiple versions of any arch:all packages
|
||||
# (in unstable) if some architectures have out-of-date
|
||||
# binaries. We only ever consider the package with the
|
||||
# largest version for migration.
|
||||
pkg = intern(pkg)
|
||||
version = intern(version)
|
||||
pkg_id = BinaryPackageId(pkg, version, arch)
|
||||
|
||||
if pkg in packages:
|
||||
old_pkg_data = packages[pkg]
|
||||
if apt_pkg.version_compare(old_pkg_data.version, version) > 0:
|
||||
continue
|
||||
old_pkg_id = old_pkg_data.pkg_id
|
||||
old_src_binaries = srcdist[old_pkg_data.source].binaries
|
||||
old_src_binaries.remove(old_pkg_id)
|
||||
# This may seem weird at first glance, but the current code rely
|
||||
# on this behaviour to avoid issues like #709460. Admittedly it
|
||||
# is a special case, but Britney will attempt to remove the
|
||||
# arch:all packages without this. Even then, this particular
|
||||
# stop-gap relies on the packages files being sorted by name
|
||||
# and the version, so it is not particularly resilient.
|
||||
if pkg_id not in old_src_binaries:
|
||||
old_src_binaries.append(pkg_id)
|
||||
|
||||
# Merge Pre-Depends with Depends and Conflicts with
|
||||
# Breaks. Britney is not interested in the "finer
|
||||
# semantic differences" of these fields anyway.
|
||||
pdeps = get_field('Pre-Depends')
|
||||
deps = get_field('Depends')
|
||||
if deps and pdeps:
|
||||
deps = pdeps + ', ' + deps
|
||||
elif pdeps:
|
||||
deps = pdeps
|
||||
|
||||
ess = False
|
||||
if get_field('Essential', 'no') == 'yes':
|
||||
ess = True
|
||||
|
||||
final_conflicts_list = []
|
||||
conflicts = get_field('Conflicts')
|
||||
if conflicts:
|
||||
final_conflicts_list.append(conflicts)
|
||||
breaks = get_field('Breaks')
|
||||
if breaks:
|
||||
final_conflicts_list.append(breaks)
|
||||
|
||||
source = pkg
|
||||
source_version = version
|
||||
# retrieve the name and the version of the source package
|
||||
source_raw = get_field('Source')
|
||||
if source_raw:
|
||||
source = intern(source_raw.split(" ")[0])
|
||||
if "(" in source_raw:
|
||||
source_version = intern(source_raw[source_raw.find("(")+1:source_raw.find(")")])
|
||||
|
||||
provides_raw = get_field('Provides')
|
||||
if provides_raw:
|
||||
provides = parse_provides(provides_raw, pkg_id=pkg_id, logger=self.logger)
|
||||
else:
|
||||
provides = []
|
||||
|
||||
raw_arch = intern(get_field('Architecture'))
|
||||
if raw_arch not in {'all', arch}: # pragma: no cover
|
||||
raise AssertionError("%s has wrong architecture (%s) - should be either %s or all" % (
|
||||
str(pkg_id), raw_arch, arch))
|
||||
|
||||
dpkg = BinaryPackage(version,
|
||||
intern(get_field('Section')),
|
||||
source,
|
||||
source_version,
|
||||
raw_arch,
|
||||
get_field('Multi-Arch'),
|
||||
deps,
|
||||
', '.join(final_conflicts_list) or None,
|
||||
provides,
|
||||
ess,
|
||||
pkg_id,
|
||||
)
|
||||
|
||||
# if the source package is available in the distribution, then register this binary package
|
||||
if source in srcdist:
|
||||
# There may be multiple versions of any arch:all packages
|
||||
# (in unstable) if some architectures have out-of-date
|
||||
# binaries. We only want to include the package in the
|
||||
# source -> binary mapping once. It doesn't matter which
|
||||
# of the versions we include as only the package name and
|
||||
# architecture are recorded.
|
||||
if pkg_id not in srcdist[source].binaries:
|
||||
srcdist[source].binaries.append(pkg_id)
|
||||
# if the source package doesn't exist, create a fake one
|
||||
else:
|
||||
srcdist[source] = SourcePackage(source_version, 'faux', [pkg_id], None, True, None, None, [], [])
|
||||
|
||||
# add the resulting dictionary to the package list
|
||||
packages[pkg] = dpkg
|
||||
if pkg_id in all_binaries:
|
||||
self._merge_pkg_entries(pkg, arch, all_binaries[pkg_id], dpkg)
|
||||
else:
|
||||
all_binaries[pkg_id] = dpkg
|
||||
|
||||
# add the resulting dictionary to the package list
|
||||
packages[pkg] = dpkg
|
||||
|
||||
return packages
|
||||
|
||||
def _read_binaries(self, suite, architectures):
|
||||
"""Read the list of binary packages from the specified directory
|
||||
|
||||
This method reads all the binary packages for a given suite.
|
||||
|
||||
If the "components" config parameter is set, the directory should
|
||||
be the "suite" directory of a local mirror (i.e. the one containing
|
||||
the "Release" file). Otherwise, Britney will read the packages
|
||||
information from all the "Packages_${arch}" files referenced by
|
||||
the "architectures" parameter.
|
||||
|
||||
Considering the
|
||||
large amount of memory needed, not all the fields are loaded
|
||||
in memory. The available fields are Version, Source, Multi-Arch,
|
||||
Depends, Conflicts, Provides and Architecture.
|
||||
|
||||
The `Provides' field is used to populate the virtual packages list.
|
||||
|
||||
The method returns a tuple of two dicts with architecture as key and
|
||||
another dict as value. The value dicts of the first dict map
|
||||
from binary package name to "BinaryPackage" objects; the other second
|
||||
value dicts map a package name to the packages providing them.
|
||||
"""
|
||||
binaries = {}
|
||||
provides_table = {}
|
||||
basedir = suite.path
|
||||
|
||||
if self._components:
|
||||
release_file = read_release_file(basedir)
|
||||
listed_archs = set(release_file['Architectures'].split())
|
||||
for arch in architectures:
|
||||
packages = {}
|
||||
if arch not in listed_archs:
|
||||
self.logger.info("Skipping arch %s for %s: It is not listed in the Release file",
|
||||
arch, suite.name)
|
||||
binaries[arch] = {}
|
||||
provides_table[arch] = {}
|
||||
continue
|
||||
for component in self._components:
|
||||
binary_dir = "binary-%s" % arch
|
||||
filename = os.path.join(basedir,
|
||||
component,
|
||||
binary_dir,
|
||||
'Packages')
|
||||
filename = possibly_compressed(filename)
|
||||
udeb_filename = os.path.join(basedir,
|
||||
component,
|
||||
"debian-installer",
|
||||
binary_dir,
|
||||
"Packages")
|
||||
# We assume the udeb Packages file is present if the
|
||||
# regular one is present
|
||||
udeb_filename = possibly_compressed(udeb_filename)
|
||||
self._read_packages_file(filename,
|
||||
arch,
|
||||
suite.sources,
|
||||
packages)
|
||||
self._read_packages_file(udeb_filename,
|
||||
arch,
|
||||
suite.sources,
|
||||
packages)
|
||||
# create provides
|
||||
provides = create_provides_map(packages)
|
||||
binaries[arch] = packages
|
||||
provides_table[arch] = provides
|
||||
else:
|
||||
for arch in architectures:
|
||||
filename = os.path.join(basedir, "Packages_%s" % arch)
|
||||
packages = self._read_packages_file(filename,
|
||||
arch,
|
||||
suite.sources)
|
||||
provides = create_provides_map(packages)
|
||||
binaries[arch] = packages
|
||||
provides_table[arch] = provides
|
||||
|
||||
return (binaries, provides_table)
|
||||
|
||||
def _merge_pkg_entries(self, package, parch, pkg_entry1, pkg_entry2):
|
||||
bad = []
|
||||
for f in self.CHECK_FIELDS:
|
||||
v1 = getattr(pkg_entry1, f)
|
||||
v2 = getattr(pkg_entry2, f)
|
||||
if v1 != v2: # pragma: no cover
|
||||
bad.append((f, v1, v2))
|
||||
|
||||
if bad: # pragma: no cover
|
||||
self.logger.error("Mismatch found %s %s %s differs", package, pkg_entry1.version, parch)
|
||||
for f, v1, v2 in bad:
|
||||
self.logger.info(" ... %s %s != %s", f, v1, v2)
|
||||
raise ValueError("Inconsistent / Unsupported data set")
|
||||
|
||||
# Merge ESSENTIAL if necessary
|
||||
assert pkg_entry1.is_essential or not pkg_entry2.is_essential
|
||||
Loading…
Reference in new issue