group.of.nepali.translators team mailing list archive

[Adam Conrad <adconrad@xxxxxxx>]

Hello Julian, or anyone else affected,

Accepted apt into xenial-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/apt/1.2.24 in a few
hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-xenial to verification-done-xenial. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-xenial. In either case, details of your
testing will help us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: apt (Ubuntu Yakkety)
       Status: In Progress => Won't Fix

** Changed in: apt (Ubuntu Xenial)
       Status: In Progress => Fix Committed

** Tags added: verification-needed verification-needed-xenial

** Changed in: apt (Ubuntu Zesty)
       Status: In Progress => Fix Committed

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Matching subscriptions: Ubuntu 16.04 Bugs
https://bugs.launchpad.net/bugs/1694697

Title:
  build-depends keeps OR flag if end of or group is ignored

Status in apt package in Ubuntu:
  Fix Released
Status in apt source package in Trusty:
  New
Status in apt source package in Xenial:
  Fix Committed
Status in apt source package in Yakkety:
  Won't Fix
Status in apt source package in Zesty:
  Fix Committed

Bug description:
  [Impact]
  If the last alternative(s) of an Or group is ignored, because it does
  not match an architecture list, we would end up keeping the or flag,
  effectively making the next AND an OR.

  For example, when parsing (on amd64):

      debhelper (>= 9), libnacl-dev [amd64] | libnacl-dev [i386]
   => debhelper (>= 9), libnacl-dev |

  Which can cause python-apt and apt-get build-dep to crash.

  Even worse:

       debhelper (>= 9), libnacl-dev [amd64] | libnacl-dev [i386], foobar
    => debhelper (>= 9), libnacl-dev [amd64] | foobar

  [Test case]
  On amd64:

  cat > segv.dsc  << EOF
  Format: 3.0 (native)
  Source: foobar
  Binary: foobar
  Architecture: all
  Version: 1
  Maintainer: Joe Sixpack <joe@xxxxxxxxxxx>
  Build-Depends: build-essential [amd64] | build-essential [fancy]
  Standards-Version: 3.9.8
  EOF
  cat > failure.dsc  << EOF
  Format: 3.0 (native)
  Source: foobar
  Binary: foobar
  Architecture: all
  Version: 1
  Maintainer: Joe Sixpack <joe@xxxxxxxxxxx>
  Build-Depends: build-essential [amd64] | build-essential [fancy], a-non-existing-package
  Standards-Version: 3.9.8
  EOF

  (1) apt-get build-dep -s ./segv.dsc should succeed instead of crash
  (2) apt-get build-dep -s ./failure.dsc should complain about "Depends: a-non-existing-package but it is not installable" instead of succeeding.

  This is the same test as run by CI and autopkgtests, so if they pass
  the tests passed. You can also run apt-get build-dep -s dq for a real
  life example that should not segfault.

  [Regression Potential]
  apt-get build-dep and friends can now fail where they succeeded previously for packages that employ architecture-limited alternatives in their build depends, as in the second example given above, because now additional packages need to be installed (which is correct, though).

  [Other info]
  By setting the previous alternatives Or flag to the current Or flag
  if the current alternative is ignored, we solve the issue.

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