Bug#1014509: apt install lets me fill the filesystem

[intrigeri <intrigeri@debian.org>]

Package: apt
Version: 2.5.1
Severity: wishlist

Hi,

On a system with a very simple partition layout (/boot and /),
with 2GB available on the root filesystem, APT lets me try to
install packages that will fill the filesystem:

  0 upgraded, 355 newly installed, 0 to remove and 0 not upgraded.
  Need to get 1,209 MB of archives.
  After this operation, 4,646 MB of additional disk space will be used.
  Do you want to continue? [Y/n] 

This operation later fails when dpkg unpacks packages.

It would be sweet if APT could identify this foreseeable failure
and error out or ask for a specific confirmation.
It would be even sweeter if this was implemented in a way
that frontends such as GNOME Software and Synaptic can present
this information to the user in a usable manner.

I understand this may not be easy to implement, because APT would need
to know on which filesystems the additional space will be used,
and that information is not available in Installed-Size.

Thanks for considering,
Cheers!