def load(self, context=None):
'''
Load the actual AppStream component from stored XML data.
An existing AppStream Context instance can be reused.
'''
# return the AppStream component if we already have it
if self.cpt:
return self.cpt
# set up the context
if not context:
import gi
gi.require_version('AppStream', '1.0')
from gi.repository import AppStream
context = AppStream.Context()
context.set_style(AppStream.FormatStyle.COLLECTION)
if not self.xml:
raise Exception(
'Can not load AppStream component from empty data.')
self.cpt = AppStream.Component()
self.cpt.load_from_xml_data(context, self.xml)
self.cpt.set_active_locale('C')
return self.cpt
def update_appstream_data(session, local_repo, repo, suite, component, arch):
'''
Import AppStream metadata about software components and associate it with the
binary packages the data belongs to.
'''
if arch.name == 'all':
# arch:all has no AppStream components, those are always associated with an architecture
# and are included in arch-specific files (even if the package they belong to is arch:all)
return
arch_all = session.query(ArchiveArchitecture) \
.filter(ArchiveArchitecture.name == 'all').one()
yaml_fname = local_repo.index_file(
suite,
os.path.join(component.name, 'dep11',
'Components-{}.yml.xz'.format(arch.name)))
if not yaml_fname:
return
cidmap_fname = local_repo.index_file(
suite,
os.path.join(component.name, 'dep11',
'CID-Index-{}.json.gz'.format(arch.name)),
check=False)
if not cidmap_fname:
return
with gzip.open(cidmap_fname, 'rb') as f:
cid_map = json.loads(f.read())
with lzma.open(yaml_fname, 'r') as f:
yaml_data = str(f.read(), 'utf-8')
mdata = AppStream.Metadata()
mdata.set_locale('ALL')
mdata.set_format_style(AppStream.FormatStyle.COLLECTION)
mdata.set_parse_flags(AppStream.ParseFlags.IGNORE_MEDIABASEURL)
mdata.parse(yaml_data, AppStream.FormatKind.YAML)
cpts = mdata.get_components()
if len(cpts) == 0:
return
log.debug('Found {} software components in {}/{}'.format(
len(cpts), suite.name, component.name))
# create context for direct serialization to collection XML chunk
context = AppStream.Context()
context.set_locale('ALL')
context.set_style(AppStream.FormatStyle.COLLECTION)
for cpt in cpts:
cpt.set_active_locale('C')
pkgname = cpt.get_pkgname()
if not pkgname:
# we skip these for now, web-apps have no package assigned - we might need a better way to map
# those to their packages, likely with an improved appstream-generator integration
log.debug(
'Found DEP-11 component without package name in {}/{}: {}'.
format(suite.name, component.name, cpt.get_id()))
continue
# fetch package this component belongs to
bin_pkg = session.query(BinaryPackage) \
.filter(BinaryPackage.name == pkgname) \
.filter(BinaryPackage.repo_id == repo.id) \
.filter(BinaryPackage.architecture_id.in_((arch.id, arch_all.id))) \
.filter(BinaryPackage.component_id == component.id) \
.filter(BinaryPackage.suites.any(ArchiveSuite.id == suite.id)) \
.order_by(BinaryPackage.version.desc()).first()
if not bin_pkg:
log.info('Found orphaned DEP-11 component in {}/{}: {}'.format(
suite.name, component.name, cpt.get_id()))
continue
dcpt = SoftwareComponent()
dcpt.kind = int(cpt.get_kind())
dcpt.cid = cpt.get_id()
dcpt.xml = cpt.to_xml_data(context)
dcpt.gcid = cid_map.get(dcpt.cid)
if not dcpt.gcid:
log.info('Found DEP-11 component without GCID in {}/{}: {}'.format(
suite.name, component.name, cpt.get_id()))
# create UUID for this component (based on GCID or XML data)
dcpt.update_uuid()
existing_dcpt = session.query(SoftwareComponent) \
.filter(SoftwareComponent.uuid == dcpt.uuid).one_or_none()
if existing_dcpt:
if bin_pkg in existing_dcpt.bin_packages:
continue # the binary package is already registered with this component
existing_dcpt.bin_packages.append(bin_pkg)
continue # we already have this component, no need to add it again
# add new software component to database
dcpt.name = cpt.get_name()
dcpt.summary = cpt.get_summary()
dcpt.description = cpt.get_description()
for icon in cpt.get_icons():
if icon.get_kind() == AppStream.IconKind.CACHED:
dcpt.icon_name = icon.get_name()
break
dcpt.project_license = cpt.get_project_license()
dcpt.developer_name = cpt.get_developer_name()
# test for free software
dcpt.is_free = False
if not dcpt.project_license:
# We have no license set.
# If we are in the 'main' component, we
# assume we have free software
if bin_pkg.component.name == 'main':
dcpt.is_free = True
else:
# have AppStream test the SPDX license expression for free software
dcpt.is_free = AppStream.license_is_free_license(
dcpt.project_license)
dcpt.categories = []
for cat in cpt.get_categories():
dcpt.categories.append(cat)
dcpt.bin_packages = [bin_pkg]
session.add(dcpt)
log.debug('Added new software component \'{}\' to database'.format(
dcpt.cid))
session.commit()