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# Copyright 2009 Canonical Ltd. This software is licensed under the
# GNU Affero General Public License version 3 (see the file LICENSE).
"""Archive dependencies helper function.
This module contains the static maps representing the 'layered' component
and pocket dependencies and helper function to handler `ArchiveDependency`
records.
* component_dependencies: static map of component dependencies
* pocket_dependencies: static map of pocket dependencies
Auxiliary functions exposed for testing purposes:
* get_components_for_context: return the corresponding component
dependencies for a component and pocket, this result is known as
'ogre_components';
* get_primary_current_component: return the component name where the
building source is published in the primary archive.
`sources_list` content generation.
* get_sources_list_for_building: return a list of `sources_list` lines
that should be used to build the given `IBuild`.
"""
__metaclass__ = type
__all__ = [
'component_dependencies',
'default_component_dependency_name',
'default_pocket_dependency',
'expand_dependencies',
'get_components_for_context',
'get_primary_current_component',
'get_sources_list_for_building',
'pocket_dependencies',
]
import logging
import traceback
from lazr.uri import URI
from lp.registry.interfaces.pocket import (
PackagePublishingPocket,
pocketsuffix,
)
from lp.soyuz.enums import (
ArchivePurpose,
PackagePublishingStatus,
)
from lp.soyuz.interfaces.archive import (
ALLOW_RELEASE_BUILDS,
)
component_dependencies = {
'main': ['main'],
'restricted': ['main', 'restricted'],
'universe': ['main', 'universe'],
'multiverse': ['main', 'restricted', 'universe', 'multiverse'],
'partner' : ['partner'],
}
pocket_dependencies = {
PackagePublishingPocket.RELEASE: (
PackagePublishingPocket.RELEASE,
),
PackagePublishingPocket.SECURITY: (
PackagePublishingPocket.RELEASE,
PackagePublishingPocket.SECURITY,
),
PackagePublishingPocket.UPDATES: (
PackagePublishingPocket.RELEASE,
PackagePublishingPocket.SECURITY,
PackagePublishingPocket.UPDATES,
),
PackagePublishingPocket.BACKPORTS: (
PackagePublishingPocket.RELEASE,
PackagePublishingPocket.SECURITY,
PackagePublishingPocket.UPDATES,
PackagePublishingPocket.BACKPORTS,
),
PackagePublishingPocket.PROPOSED: (
PackagePublishingPocket.RELEASE,
PackagePublishingPocket.SECURITY,
PackagePublishingPocket.UPDATES,
PackagePublishingPocket.PROPOSED,
),
}
default_pocket_dependency = PackagePublishingPocket.UPDATES
default_component_dependency_name = 'multiverse'
def get_components_for_context(component, pocket):
"""Return the components allowed to be used in the build context.
:param component: the context `IComponent`.
:param pocket: the context `IPocket`.
:return: a list of component names.
"""
# BACKPORTS should be able to fetch build dependencies from any
# component in order to cope with component changes occurring
# across distroseries. See bug #198936 for further information.
if pocket == PackagePublishingPocket.BACKPORTS:
return component_dependencies['multiverse']
return component_dependencies[component.name]
def get_primary_current_component(archive, distroseries, sourcepackagename):
"""Return the component name of the primary archive ancestry.
If no ancestry could be found, default to 'universe'.
"""
primary_archive = archive.distribution.main_archive
ancestries = primary_archive.getPublishedSources(
name=sourcepackagename,
distroseries=distroseries, exact_match=True)
try:
return ancestries[0].component.name
except IndexError:
return 'universe'
def expand_dependencies(archive, distro_series, pocket, component,
source_package_name):
"""Return the set of dependency archives, pockets and components.
:param archive: the context `IArchive`.
:param distro_series: the context `IDistroSeries`.
:param pocket: the context `PackagePublishingPocket`.
:param component: the context `IComponent`.
:param source_package_name: A source package name (as text)
:return: a list of (archive, pocket, [component]), representing the
dependencies defined by the given build context.
"""
deps = []
# Add implicit self-dependency for non-primary contexts.
if archive.purpose in ALLOW_RELEASE_BUILDS:
deps.append((
archive, PackagePublishingPocket.RELEASE,
get_components_for_context(component, pocket)))
primary_component = get_primary_current_component(
archive, distro_series, source_package_name)
# Consider user-selected archive dependencies.
for archive_dependency in archive.dependencies:
# When the dependency component is undefined, we should use
# the component where the source is published in the primary
# archive.
if archive_dependency.component is None:
components = component_dependencies[primary_component]
else:
components = component_dependencies[
archive_dependency.component.name]
# Follow pocket dependencies.
for pocket in pocket_dependencies[archive_dependency.pocket]:
deps.append(
(archive_dependency.dependency, pocket, components))
# Consider primary archive dependency override. Add the default
# primary archive dependencies if it's not present.
if archive.getArchiveDependency(
archive.distribution.main_archive) is None:
primary_dependencies = _get_default_primary_dependencies(
archive, component, pocket)
deps.extend(primary_dependencies)
return deps
def get_sources_list_for_building(build, distroarchseries, sourcepackagename):
"""Return the sources_list entries required to build the given item.
The entries are returned in the order that is most useful;
1. the context archive itself
2. external dependencies
3. user-selected archive dependencies
4. the default primary archive
:param build: a context `IBuild`.
:param distroarchseries: A `IDistroArchSeries`
:param sourcepackagename: A source package name (as text)
:return: a deb sources_list entries (lines).
"""
deps = expand_dependencies(
build.archive, distroarchseries.distroseries, build.pocket,
build.current_component, sourcepackagename)
sources_list_lines = \
_get_sources_list_for_dependencies(deps, distroarchseries)
external_dep_lines = []
# Append external sources_list lines for this archive if it's
# specified in the configuration.
try:
dependencies = build.archive.external_dependencies
if dependencies is not None:
for archive_dep in dependencies.splitlines():
line = archive_dep % (
{'series': distroarchseries.distroseries.name})
external_dep_lines.append(line)
except StandardError, e:
# Malformed external dependencies can incapacitate the build farm
# manager (lp:516169). That's obviously not acceptable.
# Log the error, and disable the PPA.
logger = logging.getLogger()
logger.error(
'Exception during external dependency processing:\n%s'
% traceback.format_exc())
# Disable the PPA if needed. This will suspend all the pending binary
# builds associated with the problematic PPA.
if build.archive.enabled == True:
build.archive.disable()
# For an unknown reason (perhaps because OEM has archives with
# binaries that need to override primary binaries of the same
# version), we want the external dependency lines to show up second:
# after the archive itself, but before any other dependencies.
return [sources_list_lines[0]] + external_dep_lines + \
sources_list_lines[1:]
def _has_published_binaries(archive, distroarchseries, pocket):
"""Whether or not the archive dependency has published binaries."""
# The primary archive dependencies are always relevant.
if archive.purpose == ArchivePurpose.PRIMARY:
return True
published_binaries = archive.getAllPublishedBinaries(
distroarchseries=distroarchseries,
status=PackagePublishingStatus.PUBLISHED)
# XXX cprov 20080923 bug=246200: This count should be replaced
# by bool() (__non_zero__) when storm implementation gets fixed.
return published_binaries.count() > 0
def _get_binary_sources_list_line(archive, distroarchseries, pocket,
components):
"""Return the correponding binary sources_list line."""
# Encode the private PPA repository password in the
# sources_list line. Note that the buildlog will be
# sanitized to not expose it.
if archive.private:
uri = URI(archive.archive_url)
uri = uri.replace(
userinfo="buildd:%s" % archive.buildd_secret)
url = str(uri)
else:
url = archive.archive_url
suite = distroarchseries.distroseries.name + pocketsuffix[pocket]
return 'deb %s %s %s' % (url, suite, ' '.join(components))
def _get_sources_list_for_dependencies(dependencies, distroarchseries):
"""Return a list of sources_list lines.
Process the given list of dependency tuples for the given
`DistroArchseries`.
:param dependencies: list of 3 elements tuples as:
(`IArchive`, `PackagePublishingPocket`, list of `IComponent` names)
:param distroarchseries: target `IDistroArchSeries`;
:return: a list of sources_list formatted lines.
"""
sources_list_lines = []
for archive, pocket, components in dependencies:
has_published_binaries = _has_published_binaries(
archive, distroarchseries, pocket)
if not has_published_binaries:
continue
sources_list_line = _get_binary_sources_list_line(
archive, distroarchseries, pocket, components)
sources_list_lines.append(sources_list_line)
return sources_list_lines
def _get_default_primary_dependencies(archive, component, pocket):
"""Return the default primary dependencies for a given context.
:param archive: the context `IArchive`.
:param component: the context `IComponent`.
:param pocket: the context `PackagePublishingPocket`.
:return: a list containing the default dependencies to primary
archive.
"""
if archive.purpose in ALLOW_RELEASE_BUILDS:
primary_pockets = pocket_dependencies[
default_pocket_dependency]
primary_components = component_dependencies[
default_component_dependency_name]
else:
primary_pockets = pocket_dependencies[pocket]
primary_components = get_components_for_context(component, pocket)
primary_dependencies = []
for pocket in primary_pockets:
primary_dependencies.append(
(archive.distribution.main_archive, pocket,
primary_components))
return primary_dependencies
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