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debquery: support control.tar.xz

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Similar to recent fixes in libsolv and obs-build. Since tarfile
on python2 doesn't do lzma, decompress the file into memory and
feed it as a fake file via StringIO to tarfile
This commit is contained in:
Riku Voipio 2017-10-23 11:39:56 +03:00
parent a3c2aeb64c
commit 9166a7f075
1 changed files with 21 additions and 5 deletions
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26
osc/util/debquery.py
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@ -5,8 +5,15 @@ from . import ar
import os.path
import re
import tarfile
import StringIO
from . import packagequery
HAVE_LZMA = True
try:
import lzma
except ImportError:
HAVE_LZMA = False
class DebError(packagequery.PackageError):
pass
@ -30,10 +37,18 @@ class DebQuery(packagequery.PackageQuery, packagequery.PackageQueryResult):
if debbin.read() != '2.0\n':
raise DebError(self.__path, 'invalid debian binary format')
control = arfile.get_file('control.tar.gz')
if control is None:
raise DebError(self.__path, 'missing control.tar.gz')
# XXX: python2.4 relies on a name
tar = tarfile.open(name = 'control.tar.gz', fileobj = control)
if control is not None:
# XXX: python2.4 relies on a name
tar = tarfile.open(name='control.tar.gz', fileobj=control)
else:
control = arfile.get_file('control.tar.xz')
if control is None:
raise DebError(self.__path, 'missing control.tar')
if not HAVE_LZMA:
raise DebError(self.__path, 'can\'t open control.tar.xz without python-lzma')
decompressed = lzma.decompress(control.read())
tar = tarfile.open(name="control.tar.xz",
fileobj=StringIO.StringIO(decompressed))
try:
name = './control'
# workaround for python2.4's tarfile module
@ -41,7 +56,8 @@ class DebQuery(packagequery.PackageQuery, packagequery.PackageQueryResult):
name = 'control'
control = tar.extractfile(name)
except KeyError:
raise DebError(self.__path, 'missing \'control\' file in control.tar.gz')
raise DebError(self.__path,
'missing \'control\' file in control.tar')
self.__parse_control(control, all_tags, self_provides, *extra_tags)
return self