[Bug 1897385] Re: bzr crashed when attempting to build a package for ppa

Thu Nov 12 20:25:50 UTC 2020

Hello Andrei, and thanks for your concern.

Unfortunately not, I didn't find any third party tutorial. This is an
"official" one, not "community", since it is hosted on ubuntu.com, and
tells us about ppa, which are a nice feature of Ubuntu.

I don't want to do a trial of intent here, but maybe Canonical is trying
to kill ppa, same as they are killing .deb packaging in favour of snaps.
IMHO this is a bad architectural choice!

I have no intention of doing a snap for my open source development. It
is a fuse driver, and fuse is already slow enough having to cross
boundaries between kernel and userland, I don't want to riddle it more
with snap isolation (and I'm not even sure you can 'snap' such low level
object).

I guess I'll have to do my own research to make it work again. The first
bzr command fails :

bzr dh-make hello 2.10 hello-2.10.tar.gz

I am assuming it was creating the non existing bazaar repository from
the tarball passed in the command. This feature may have been removed
from bazaar, so I guess if I find how to do the same that should work.

For the ppa, in fact I don't need at all to build the .deb, it just
builds in the process described by the tutoral so that you can check all
goes well in the compile (make in my case). In fact you only need the
signed source package (last commands) because for security reason, that
is what you upload to the ppa that re-builds itself from source. But I
guess you still need the bazaat repository to exist for that last
command!

I do build debian packages for Raspberry Pi because there is no such
thing as handy ppa, and I have a much simpler "tutorial"! But
unfortuantely in the case of Raspberry Pi, either you trust I have not
been a miscreant and take directly the .deb I offer, or you compile
yourself from source. This is precisely what ppa avoid, and they also
bring you auto upgrades with the rest of your system "for free".

So a question for bazaar guys: has the feature of creating a repository from a tarball been removed?.. The response might help "solving" the issue if there are now different options to pass.

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Title:
  bzr crashed when attempting to build a package for ppa

Status in bzr package in Ubuntu:
  New

Bug description:
  Hello,

  No need to repeat here that the documentation to properly build a
  package is of appalling quality. That has been widely commented and is
  probably a major hurdle why people don't "package".

  Sorry, so that being said, I am using the little documentation there
  is on those pages "Ubuntu packaging guide":

  https://packaging.ubuntu.com/html/getting-set-up.html

  Environment: On a fresh 20.04 I ran the command:

  Steps to reproduce: (following the above documentation from a fresh 20.04)

  sudo apt install gnupg pbuilder ubuntu-dev-tools apt-file

  (Which pulled a gazillion packages... but ran successfully)

  gpg and ssh keys steps where already done from 16.04 and the gpg key
  has been imported... this is anyway of no importance since the crash
  occurs much before we need that!

  Then we move to page 4 of the documentation since this is for
  packaging "new software".

  https://packaging.ubuntu.com/html/packaging-new-software.html

  Now we install as instructed:

  sudo apt-get install dh-make bzr-builddeb

  Which successfully pulls another couple of packages.

  Next step is to build a tar with all my files to compile. I use here
  the same commands that works fine with 16.04 and successfully produces
  a tar in /tmp/1fichierfs.tar

  Then, as instructed I run:

  bzr dh-make 1fichierfs 1.7.2~Focal /tmp/1fichierfs.tar

  And immediately get a stacktrace:

  $ bzr dh-make 1fichierfs 1.7.2~Focal /tmp/1fichierfs.tar
  brz: ERROR: AttributeError: 'NoneType' object has no attribute 'initialize_on_transport'

  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/breezy/plugins/debian/dh_make.py", line 26, in _get_tree
      tree = workingtree.WorkingTree.open(".")
    File "/usr/lib/python3/dist-packages/breezy/workingtree.py", line 201, in open
      control = controldir.ControlDir.open(path, _unsupported=_unsupported)
    File "/usr/lib/python3/dist-packages/breezy/controldir.py", line 706, in open
      return klass.open_from_transport(t, probers=probers,
    File "/usr/lib/python3/dist-packages/breezy/controldir.py", line 736, in open_from_transport
      transport, format = _mod_transport.do_catching_redirections(
    File "/usr/lib/python3/dist-packages/breezy/transport/__init__.py", line 1613, in do_catching_redirections
      return action(transport)
    File "/usr/lib/python3/dist-packages/breezy/controldir.py", line 724, in find_format
      return transport, ControlDirFormat.find_format(transport,
    File "/usr/lib/python3/dist-packages/breezy/controldir.py", line 1166, in find_format
      raise errors.NotBranchError(path=transport.base)
  breezy.errors.NotBranchError: Not a branch: "/tmp/build/".

  During handling of the above exception, another exception occurred:

  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/breezy/plugins/debian/dh_make.py", line 37, in _get_tree
      a_controldir = controldir.ControlDir.open_from_transport(
    File "/usr/lib/python3/dist-packages/breezy/controldir.py", line 736, in open_from_transport
      transport, format = _mod_transport.do_catching_redirections(
    File "/usr/lib/python3/dist-packages/breezy/transport/__init__.py", line 1613, in do_catching_redirections
      return action(transport)
    File "/usr/lib/python3/dist-packages/breezy/controldir.py", line 724, in find_format
      return transport, ControlDirFormat.find_format(transport,
    File "/usr/lib/python3/dist-packages/breezy/controldir.py", line 1166, in find_format
      raise errors.NotBranchError(path=transport.base)
  breezy.errors.NotBranchError: Not a branch: "/tmp/build/1fichierfs/".

  During handling of the above exception, another exception occurred:

  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/breezy/commands.py", line 1016, in exception_to_return_code
      return the_callable(*args, **kwargs)
    File "/usr/lib/python3/dist-packages/breezy/commands.py", line 1202, in run_bzr
      ret = run(*run_argv)
    File "/usr/lib/python3/dist-packages/breezy/commands.py", line 759, in run_argv_aliases
      return self.run(**all_cmd_args)
    File "/usr/lib/python3/dist-packages/breezy/commands.py", line 784, in run
      return self._operation.run_simple(*args, **kwargs)
    File "/usr/lib/python3/dist-packages/breezy/cleanup.py", line 136, in run_simple
      return _do_with_cleanups(
    File "/usr/lib/python3/dist-packages/breezy/cleanup.py", line 166, in _do_with_cleanups
      result = func(*args, **kwargs)
    File "/usr/lib/python3/dist-packages/breezy/plugins/debian/cmds.py", line 1385, in run
      tree = dh_make.import_upstream(
    File "/usr/lib/python3/dist-packages/breezy/plugins/debian/dh_make.py", line 83, in import_upstream
      tree = _get_tree(package_name)
    File "/usr/lib/python3/dist-packages/breezy/plugins/debian/dh_make.py", line 42, in _get_tree
      branch = create_branch(to_transport.base,
    File "/usr/lib/python3/dist-packages/breezy/controldir.py", line 660, in create_branch_convenience
      controldir = klass.create(base, format, possible_transports)
    File "/usr/lib/python3/dist-packages/breezy/controldir.py", line 859, in create
      return format.initialize_on_transport(t)
  AttributeError: 'NoneType' object has no attribute 'initialize_on_transport'

  brz 3.0.2 on python 3.8.2 (Linux-5.4.0-48-generic-x86_64-with-glibc2.29)
  arguments: ['/usr/bin/bzr', 'dh-make', '1fichierfs', '1.7.2~Focal',
      '/tmp/1fichierfs.tar']
  plugins: bash_completion[3.0.2], changelog_merge[3.0.2],
      commitfromnews[3.0.2], cvs[3.0.2], darcs[3.0.2], debian[3.0.0],
      email[3.0.2], fastimport[3.0.2], launchpad[3.0.2], mtn[3.0.2],
      netrc_credential_store[3.0.2], news_merge[3.0.2], po_merge[3.0.2],
      propose[3.0.2], repodebug[3.0.2], stats[3.0.2], upload[3.0.2],
      weave_fmt[3.0.2]
  encoding: 'utf-8', fsenc: 'utf-8', lang: 'fr_FR.UTF-8'

  *** Bazaar has encountered an internal error.  This probably indicates a
      bug in Bazaar.  You can help us fix it by filing a bug report at
          https://bugs.launchpad.net/brz/+filebug
      including this traceback and a description of the problem.

  ------------------------

  As if the poor quality of the documentation was not enough...

  Fortunately it still works with my 16.04 and I could build (just to
  check it builds!) and upload the sources to my ppa where they built
  perfectly for Xenial/Bionic/Focal.

  Unrelated to the current bug, the 16.04 commands fails the lintian
  step... which has the only consequence of having to wait for a
  "timeout" like 2 minutes. This is not an big issue anyway since the
  documentation is so bad, I have really no clue where to find leads to
  fix what Lintian is spitting at my face with the 18.04 iteration that
  works fine!

  ------------------------

  This bud was probably automatically reported by apport, but I wanted to give you some context in the case that could help fixing things.

  Attached a crash file about this bug.

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