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RPM: workaround timezone bug in spec parsing #21

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RPM: workaround timezone bug in spec parsing #21

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10 changes: 10 additions & 0 deletions lib/rift/RPM.py
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,7 @@
import shutil
from subprocess import Popen, PIPE, STDOUT, run, CalledProcessError
import time
import datetime

import rpm

Expand Down Expand Up @@ -261,7 +262,16 @@ def load(self):
try:
rpm.reloadConfig()
self._set_macros()
# Get current timezone, so it can be restored after parsing the spec
# file.
current_timezone = str(datetime.datetime.now(datetime.timezone.utc).astimezone().tzinfo)
spec = rpm.TransactionSet().parseSpec(self.filepath)
# As a workaround RPM library bug
# https://github.com/rpm-software-management/rpm/issues/1821,
# restore timezone after it has been changed to parse changelog.
# Note this is fixed in RPM >= 4.19.
os.environ['TZ'] = str(current_timezone)
time.tzset()
except ValueError as exp:
raise RiftError(f"{self.filepath}: {exp}") from exp
self.pkgnames = [_header_values(pkg.header['name']) for pkg in spec.packages]
Expand Down