def gzopen_without_timestamps(name, mode="r", fileobj=None, compresslevel=9, **kwargs):
""" !! Method overrided by laso to pass mtime=0 (!=None) to avoid time.time() was
setted in Gzip file causing md5 to change. Not possible using the
previous tarfile open because arguments are not passed to GzipFile constructor
"""
from tarfile import CompressionError, ReadError
if mode not in ("r", "w"):
raise ValueError("mode must be 'r' or 'w'")
try:
import gzip
gzip.GzipFile
except (ImportError, AttributeError):
raise CompressionError("gzip module is not available")
try:
fileobj = gzip.GzipFile(name, mode, compresslevel, fileobj, mtime=0)
except OSError:
if fileobj is not None and mode == 'r':
raise ReadError("not a gzip file")
raise
try:
t = tarfile.TarFile.taropen(name, mode, fileobj, **kwargs)
except IOError:
fileobj.close()
if mode == 'r':
raise ReadError("not a gzip file")
raise
except:
fileobj.close()
raise
t._extfileobj = False
return t
def gzopen_without_timestamps(name,
mode="r",
fileobj=None,
compresslevel=None,
**kwargs):
""" !! Method overrided by laso to pass mtime=0 (!=None) to avoid time.time() was
setted in Gzip file causing md5 to change. Not possible using the
previous tarfile open because arguments are not passed to GzipFile constructor
"""
from tarfile import CompressionError, ReadError
compresslevel = compresslevel or int(
os.getenv("CONAN_COMPRESSION_LEVEL", 9))
if mode not in ("r", "w"):
raise ValueError("mode must be 'r' or 'w'")
try:
import gzip
gzip.GzipFile
except (ImportError, AttributeError):
raise CompressionError("gzip module is not available")
try:
fileobj = gzip.GzipFile(name, mode, compresslevel, fileobj, mtime=0)
except OSError:
if fileobj is not None and mode == 'r':
raise ReadError("not a gzip file")
raise
try:
# Format is forced because in Python3.8, it changed and it generates different tarfiles
# with different checksums, which break hashes of tgzs
t = tarfile.TarFile.taropen(name,
mode,
fileobj,
format=tarfile.GNU_FORMAT,
**kwargs)
except IOError:
fileobj.close()
if mode == 'r':
raise ReadError("not a gzip file")
raise
except Exception:
fileobj.close()
raise
t._extfileobj = False
return t