[Bug 1144373] Re: Workaround apt-ftparchive generating empty Packages.gz

[Mathieu Trudel-Lapierre]

Removing ubuntu-reviewers: I looked at the code and it seems that this
is already covered by other parts; for instance, when gzipping the files
they are touched first, and a quick test of that shows that it indeed
properly creates an empty compressed container; for a file size of 20
bytes.

Are you still seeing this happening without your patch, assuming there
may have been release upgrades on your systems since then?

** Changed in: debian-cd (Ubuntu)
       Status: New => Incomplete

** Changed in: debian-cd (Ubuntu)
   Importance: Undecided => Medium

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Title:
  Workaround apt-ftparchive generating empty Packages.gz

Status in debian-cd package in Ubuntu:
  Incomplete

Bug description:
  Hello,

  On my system with apt-ftparchive version 0.9.7.7, empty Packages.gz
  have size 0 instead of 20 bytes for empty gzip file.

  Steps to reproduce:

  1) cat > apt-ftparchive.conf <<EOF
  Dir::ArchiveDir ".";
  Dir::OverrideDir ".";
  Dir::CacheDir ".";
  Default::Packages::Compress "gzip";

  TreeDefault::Contents " ";

  
  Tree "dists/whatever" {
      FileList "empty.list";
      Sections "main";
      Architectures "amd64";
  }
  EOF

  2) > empty.list

  3) mkdir -p dists/whatever/main/binary-amd64

  4) apt-ftparchive generate apt-ftparchive.conf

  5) ls -l dists/whatever/main/binary-amd64/

  This cause troubles installing my custom CDROM, apt-cdrom fails with:

      Mar  1 16:06:15 base-installer: gzip: 
      Mar  1 16:06:15 base-installer: stdin: unexpected end of file

  Then base installer fails to install lvm2 because it does not find it.

  My workaround makes my custom CDROM work again.

  Regards.

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