[Bug 2130385] Re: amd64v3: No Contents in the cache with the given restrictions

[Heinrich Schuchardt]

With the latest change I get an error

Use of uninitialized value in string at /usr/bin/apt-file line 712.

We need to check if the value is defined:

710     @arch_res = grep { $_ ne '' } split(m/\s*,\s*/,
711                       $Conf->{arch} ||
712                       ("$_config->{'APT::Architecture'}," .
713                        (defined $_config->{'APT::Architecture-Variants'} ?
714                        $_config->{'APT::Architecture-Variants'} : '')));

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https://bugs.launchpad.net/bugs/2130385

Title:
  amd64v3: No Contents in the cache with the given restrictions

Status in Apt File:
  New
Status in apt-file package in Ubuntu:
  Fix Released
Status in apt-file source package in Questing:
  Confirmed
Status in apt-file source package in Resolute:
  Fix Released

Bug description:
  [ Impact ]

  apt-file does not support the amd64v3 architecture variant:

  With arch variant disabled in /etc/apt/apt.conf.d/99enable-amd64v3
  $ apt-file update
  $ apt-file search riscv64-linux-gnu-gcc-15
  gcc-15-riscv64-linux-gnu: /usr/bin/riscv64-linux-gnu-gcc-15
  gcc-15-riscv64-linux-gnu: /usr/share/man/man1/riscv64-linux-gnu-gcc-15.1.gz

  With arch variant enabled in /etc/apt/apt.conf.d/99enable-amd64v3
  $ apt-file update
  $ apt-file search riscv64-linux-gnu-gcc-15
  Finding relevant cache files to search ...E: No Contents in the cache with the given restrictions

  [ Test Plan ]

  On x86_64 systems the amd64v3 variant can be enabled with

  echo 'APT::Architecture-Variants "amd64v3";' | sudo tee
  /etc/apt/apt.conf.d/99enable-amd64v3

  and disabled with

  sudo rm /etc/apt/apt.conf.d/99enable-amd64v3

  On an amd64 system with amd64v3 disabled and enabled install apt-file:

  sudo apt-get install apt-file
  sudo apt-file update

  and search for riscv64-linux-gnu-gcc-14

  sudo apt-file update
  apt-file search riscv64-linux-gnu-gcc-14

  Both with and without amd64v3 support the file should be found. The
  output will look like:

  gcc-14-riscv64-linux-gnu: /usr/bin/riscv64-linux-gnu-gcc-14
  gcc-14-riscv64-linux-gnu: /usr/share/man/man1/riscv64-linux-gnu-gcc-14.1.gz

  [ Where problems could occur ]

  Apt-file is used for supporting users to find packages that they might
  want to install. If it does not work correctly, users might not be
  able to identify the package they are looking for.

  [ Other Info ]

  n/a

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