** Description changed: - On all Ubuntu releases since at least 19.10, enabling compressed APT - package list storage with command-not-found installed leads to this - crash in the cnf-update-db hook called by apt update: + [Impact] + On all Ubuntu releases since at least 19.10, enabling compressed APT package list storage with command-not-found installed leads to this crash in the cnf-update-db hook called by apt update: Traceback (most recent call last): - File "/usr/lib/cnf-update-db", line 26, in <module> - col.create(db) - File "/usr/lib/python3/dist-packages/CommandNotFound/db/creator.py", line 93, in create - self._fill_commands(con) - File "/usr/lib/python3/dist-packages/CommandNotFound/db/creator.py", line 127, in _fill_commands - self._parse_single_commands_file(con, fp) - File "/usr/lib/python3/dist-packages/CommandNotFound/db/creator.py", line 165, in _parse_single_commands_file - suite=tagf.section["suite"] + File "/usr/lib/cnf-update-db", line 26, in <module> + col.create(db) + File "/usr/lib/python3/dist-packages/CommandNotFound/db/creator.py", line 93, in create + self._fill_commands(con) + File "/usr/lib/python3/dist-packages/CommandNotFound/db/creator.py", line 127, in _fill_commands + self._parse_single_commands_file(con, fp) + File "/usr/lib/python3/dist-packages/CommandNotFound/db/creator.py", line 165, in _parse_single_commands_file + suite=tagf.section["suite"] KeyError: 'suite' (To enable compressed APT list storage, add Acquire::GzipIndexes "true"; to an apt.conf fragment.) This appears to be caused by apt downloading an lz4-compressed command list for command-not-found and cnf-update-db passing the /var/lib/apt/lists/*Commands-*.lz4 files to db/creator.py, which does not know about the compression and attempts to parse them as plain text. + + + [Test plan] + Enable the option, purge old lists, and update to populate lists directory with compressed files; this will run cnf-update-db for you. + + [Where problems could occur] + Replacing the open() call with subprocess.Popen for apt-helper seems like a minimal change. If apt-helper has problems, we check the return code and fail, keeping the old db in place.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1876034 Title: apt update crashes with "KeyError: 'suite'" in cnf-update-db if index compression is enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/command-not-found/+bug/1876034/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
