[Aptitude-devel] Bug#798240: aptitude: Sort resolver's solutions by number of removals

[Michele Alessandrini]

Package: aptitude
Version: 0.6.11-1+b1
Severity: wishlist


When a serious conflict arises with an update, the resolver usually presents many solutions with a lot of removed packages,
then you have to browse a lot of solutions to usually find a more acceptable one, consisting of keeping
a few packages at the current version, and perhaps removing a few ones.
It would be more convenient if the first solutions presented were the ones with the minimum number of packages removed.


-- Package-specific info:
Terminal: xterm
$DISPLAY is set.
which aptitude: /usr/bin/aptitude

aptitude version information:
aptitude 0.6.11 compiled at Nov  8 2014 13:34:39
Compiler: g++ 4.9.1
Compiled against:
  apt version 4.12.0
  NCurses version 5.9
  libsigc++ version: 2.4.0
  Gtk+ support disabled.
  Qt support disabled.

Current library versions:
  NCurses version: ncurses 6.0.20150810
  cwidget version: 0.5.17
  Apt version: 4.12.0

aptitude linkage:
	linux-vdso.so.1 (0x00007ffec7deb000)
	libapt-pkg.so.4.12 => /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12 (0x00007fc59c3f5000)
	libncursesw.so.5 => /lib/x86_64-linux-gnu/libncursesw.so.5 (0x00007fc59c1c5000)
	libtinfo.so.5 => /lib/x86_64-linux-gnu/libtinfo.so.5 (0x00007fc59bf9a000)
	libsigc-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libsigc-2.0.so.0 (0x00007fc59bd94000)
	libcwidget.so.3 => /usr/lib/x86_64-linux-gnu/libcwidget.so.3 (0x00007fc59ba7e000)
	libsqlite3.so.0 => /usr/lib/x86_64-linux-gnu/libsqlite3.so.0 (0x00007fc59b7b0000)
	libboost_iostreams.so.1.55.0 => /usr/lib/x86_64-linux-gnu/libboost_iostreams.so.1.55.0 (0x00007fc59b598000)
	libxapian.so.22 => /usr/lib/libxapian.so.22 (0x00007fc59b181000)
	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fc59af63000)
	libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007fc59ac57000)
	libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fc59a956000)
	libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007fc59a73f000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fc59a396000)
	libutil.so.1 => /lib/x86_64-linux-gnu/libutil.so.1 (0x00007fc59a193000)
	libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fc599f8e000)
	libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007fc599d73000)
	libbz2.so.1.0 => /lib/x86_64-linux-gnu/libbz2.so.1.0 (0x00007fc599b63000)
	liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007fc59993f000)
	librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007fc599737000)
	libuuid.so.1 => /lib/x86_64-linux-gnu/libuuid.so.1 (0x00007fc599531000)
	/lib64/ld-linux-x86-64.so.2 (0x000056525f74b000)

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.1.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=it_IT.utf8, LC_CTYPE=it_IT.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages aptitude depends on:
ii  aptitude-common           0.6.11-1
ii  libapt-pkg4.12            1.0.9.10
ii  libboost-iostreams1.55.0  1.55.0+dfsg-4
ii  libc6                     2.19-19
ii  libcwidget3               0.5.17-2
ii  libgcc1                   1:5.1.1-14
ii  libncursesw5              6.0+20150810-1
ii  libsigc++-2.0-0c2a        2.4.1-1
ii  libsqlite3-0              3.8.11.1-1
ii  libstdc++6                5.1.1-14
ii  libtinfo5                 6.0+20150810-1
ii  libxapian22               1.2.21-1

Versions of packages aptitude recommends:
pn  aptitude-doc-en | aptitude-doc  <none>
pn  libparse-debianchangelog-perl   <none>
ii  sensible-utils                  0.0.9

Versions of packages aptitude suggests:
pn  apt-xapian-index  <none>
pn  debtags           <none>
ii  tasksel           3.33

-- no debconf information