def _find_package_in_package_files(self, package_name, package_files):
downloaded_package_prefix = []
for package_file in package_files:
match = re.match('^(.*)Packages\.*([a-z2]{1,3})$',
package_file['name'])
if not match or not len(match.groups()) <= 2:
raise FatalError(
'Error parsing package name string {}.'.format(
package_file['name']))
prefix = match.group(1).replace('/', '_')
if prefix in downloaded_package_prefix:
continue
package_url = '{}/dists/{}/{}'.format(self._source.uri,
self._source.dist,
package_file['name'])
package_file_data = self._try_fetch_archive_element(package_url)
if package_file_data:
self._verify_checksum(package_file_data, package_file)
downloaded_package_prefix.append(prefix)
decompressed_package_data = decompress(package_file_data)
with tempfile.SpooledTemporaryFile() as f:
f.write(decompressed_package_data)
f.seek(0)
for section in debian.deb822.Packages.iter_paragraphs(f):
if section['Package'] == package_name:
return section
return None
def test_decompression():
for algorithm, compressed_data in archives:
expected_data = '{0}-file\n'.format(algorithm)
data = decompress(compressed_data).decode('utf-8')
assert data == expected_data