Package `printer-driver-bisheng-lexmark-z23-z33-color-jetprinter` will cause `command-not-found` crash.

[ChenPi11]

SUMMARY | 问题概要

Package command-not-found is a handler for command_not_found that looks up programs not currently installed but available from the repositories. Package rinter-driver-bisheng-lexmark-z23-z33-color-jetprinter has a file with GB18030 encoding file name:

./usr/share/ppd/printer-driver-deepinwine/Lexmark \264\362ӡ\273\372\307\375\266\257\263\314\320\362-Lexmark Z23-Z33 Color Jetprinter.ppd

This will crash command-not-found's apt trigger while command-not-found building its database.

/usr/share/command-not-found/CommandNotFound/db/creator.py:242:

Log:

忽略:1 https://community-packages.deepin.com/beige beige InRelease
命中:3 https://app-store-files.uniontech.com/250102153637985/appstorev23 beige InRelease
命中:2 https://cdn-community-packages.deepin.com/driver-23 driver InRelease
命中:4 https://community-packages.deepin.com/beige beige Release
Traceback (most recent call last):
  File "/usr/lib/cnf-update-db", line 32, in <module>
    col.create(db)
  File "/usr/share/command-not-found/CommandNotFound/db/creator.py", line 96, in create
    self._fill_commands(con)
  File "/usr/share/command-not-found/CommandNotFound/db/creator.py", line 141, in _fill_commands
    self._parse_single_contents_file(con, f, sub.stdout)
  File "/usr/share/command-not-found/CommandNotFound/db/creator.py", line 241, in _parse_single_contents_file
    l = l.decode("utf-8")
        ^^^^^^^^^^^^^^^^^
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb4 in position 48: invalid start byte
正在读取软件包列表... 完成
E: Problem executing scripts APT::Update::Post-Invoke-Success 'if /usr/bin/test -w /var/lib/command-not-found/ -a -e /usr/lib/cnf-update-db; then /usr/lib/cnf-update-db > /dev/null; fi'
E: Sub-process returned an error code

SOFTWARE/OS VERSIONS | 软件/系统版本信息

Distro: Deepin 23
Package: printer-driver-bisheng-lexmark-z23-z33-color-jetprinter

PRE-REQUIREMENT | 预置条件

1. command-not-found is installed.
2. Its database /var/lib/command-not-found/* is not exists.

STEPS TO REPRODUCE | 复现步骤

1. Setup a Deepin V23 distro.
2. Run sudo apt install command-not-found in root user.
3. Make sure that /var/lib/command-not-found/* is not exists.
4. Make sure that command command-not-found zsh show this:

没有找到 command-not-found 的数据库。请运行 “sudo apt update” 以增充数据库。
zsh：未找到命令

5. Run sudo apt update

OBSERVED RESULT | 观察到的结果

EXPECTED RESULT | 期望的结果

忽略:1 https://community-packages.deepin.com/beige beige InRelease
命中:3 https://cdn-community-packages.deepin.com/driver-23 driver InRelease
命中:2 https://app-store-files.uniontech.com/250102153637985/appstorev23 beige InRelease
命中:4 https://community-packages.deepin.com/beige beige Release
正在读取软件包列表... 完成
正在分析软件包的依赖关系树... 完成
正在读取状态信息... 完成
所有软件包均为最新。

ADDITIONAL INFORMATION | 额外补充

Use

try:
    l = l.decode("utf-8")
except UnicodeDecodeError:
    l = l.decode("gb18030")

in package command-not-found's /usr/share/command-not-found/CommandNotFound/db/creator.py can fix this problem. But IT'S NOT A GOOD IDEA.

[xzl01]

Yes, this is indeed a coding issue and we will solve it with a patch

[ChenPi11]

天哪，这个issue已经躺了两年了，估计早就不存在了