[Bug 1908770] [NEW] [pull-pkg] unnecessary crash report with ubuntutools.pullpkg.InvalidPullValueError in parse_pull(): Must specify --pull

[Nobuto Murata]

Public bug reported:

When invoking the command without `--pull`, the command tells me "Must
specify --pull" which is good. However, it also triggers crash file
collection process as /var/crash/_usr_bin_pull-pkg.1000.crash and gives
unnecessary traceback as follows.

$ pull-pkg my-package
Traceback (most recent call last):
  File "/usr/bin/pull-pkg", line 29, in <module>
    PullPkg.main()
  File "/usr/lib/python3/dist-packages/ubuntutools/pullpkg.py", line 96, in main
    cls(*args, **kwargs).pull()
  File "/usr/lib/python3/dist-packages/ubuntutools/pullpkg.py", line 354, in pull
    options = self.parse_args(args)
  File "/usr/lib/python3/dist-packages/ubuntutools/pullpkg.py", line 178, in parse_args
    return self.parse_options(vars(newparser.parse_args(args)))
  File "/usr/lib/python3/dist-packages/ubuntutools/pullpkg.py", line 292, in parse_options
    options['pull'] = self.parse_pull(options['pull'])
  File "/usr/lib/python3/dist-packages/ubuntutools/pullpkg.py", line 182, in parse_pull
    raise InvalidPullValueError("Must specify --pull")
ubuntutools.pullpkg.InvalidPullValueError: Must specify --pull


$ grep Title: /var/crash/_usr_bin_pull-pkg.1000.crash 
Title: pull-pkg crashed with ubuntutools.pullpkg.InvalidPullValueError in parse_pull(): Must specify --pull

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-dev-tools 0.176
ProcVersionSignature: Ubuntu 5.4.0-58.64-generic 5.4.73
Uname: Linux 5.4.0-58-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu27.14
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sat Dec 19 16:28:49 2020
InstallationDate: Installed on 2020-03-22 (271 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200321)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-dev-tools
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: ubuntu-dev-tools (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug focal

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https://bugs.launchpad.net/bugs/1908770

Title:
  [pull-pkg] unnecessary crash report with
  ubuntutools.pullpkg.InvalidPullValueError in parse_pull(): Must
  specify --pull

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