Bug#779960: marked as done (apt-get remove doesn't respect dependencies' manual-flag)

To: David Kalnischkies <david@kalnischkies.de>
Subject: Bug#779960: marked as done (apt-get remove doesn't respect dependencies' manual-flag)
From: owner@bugs.debian.org (Debian Bug Tracking System)
Date: Sat, 07 Mar 2015 00:12:06 +0000
Message-id: <[🔎] handler.779960.D779960.142568692115738.ackdone@bugs.debian.org>
References: <20150307000833.GA25299@crossbow> <[🔎] 20150306210458.836.591.reportbug@93376f1fcbd3>

Your message dated Sat, 7 Mar 2015 01:08:33 +0100
with message-id <20150307000833.GA25299@crossbow>
and subject line Re: Bug#779960: apt-get remove doesn't respect dependencies' manual-flag
has caused the Debian Bug report #779960,
regarding apt-get remove doesn't respect dependencies' manual-flag
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
779960: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=779960
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

--- Begin Message ---

To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: apt-get remove doesn't respect dependencies' manual-flag
From: buck <buck.2019@gmail.com>
Date: Fri, 06 Mar 2015 21:04:58 +0000
Message-id: <[🔎] 20150306210458.836.591.reportbug@93376f1fcbd3>

Package: apt
Version: 1.0.9.6
Severity: normal

Dear Maintainer,

   * What led up to the situation?
While trying to minimize the size of my docker image, I wanted to remove build-only dependncies while leaving runtime dependencies intact.
I first installed runtime libs, then the -dev packages.
When removing the -dev packages, I noticed that some of the packages manually installed were auto-removed, because they were found to be "unecessary".

   * What exactly did you do (or not do) that was effective (or
     ineffective)?
As a workaround, we avoid remove, and only use apt-mark auto && apt-get autoremove.

   * What was the outcome of this action?
Some  manually installed packages were automatically removed.

   * What outcome did you expect instead?
Only the packages mentioned in apt-get-remove and their automatic deps should be removed.
Any dependencies flagged as manual should remain intact.



Full reproduction: (note that libfontconfig1 is uninstalled)

#!/bin/sh
set -ex
DEBIAN_FRONTEND=noninteractive

apt-get update
apt-get --yes --no-install-recommends install libfontconfig1
apt-get --yes --no-install-recommends install libfreetype6
apt-mark showmanual | grep libfont
apt-get --yes remove libfreetype6
apt-mark showmanual | grep libfont

exit 0

cat <<DEMO
$ cat repro.sh | docker run -i debian:sid sh
+ DEBIAN_FRONTEND=noninteractive
+ apt-get update
Get:1 http://http.debian.net sid InRelease [249 kB]
Get:2 http://http.debian.net sid/main amd64 Packages [9525 kB]
Fetched 9775 kB in 7s (1288 kB/s)
Reading package lists...
+ apt-get --yes --no-install-recommends install libfontconfig1
Reading package lists...
Building dependency tree...
The following extra packages will be installed:
  fontconfig-config fonts-dejavu-core libexpat1 libfreetype6 libpng12-0 ucf
The following NEW packages will be installed:
  fontconfig-config fonts-dejavu-core libexpat1 libfontconfig1 libfreetype6
  libpng12-0 ucf
0 upgraded, 7 newly installed, 0 to remove and 31 not upgraded.
Need to get 2437 kB of archives.
After this operation, 5764 kB of additional disk space will be used.
Get:1 http://http.debian.net/debian/ sid/main libexpat1 amd64 2.1.0-6+b3 [80.3 kB]
Get:2 http://http.debian.net/debian/ sid/main libpng12-0 amd64 1.2.50-2+b2 [172 kB]
Get:3 http://http.debian.net/debian/ sid/main libfreetype6 amd64 2.5.2-3 [466 kB]
Get:4 http://http.debian.net/debian/ sid/main ucf all 3.0030 [69.7 kB]
Get:5 http://http.debian.net/debian/ sid/main fonts-dejavu-core all 2.34-1 [1047 kB]
Get:6 http://http.debian.net/debian/ sid/main fontconfig-config all 2.11.0-6.3 [273 kB]
Get:7 http://http.debian.net/debian/ sid/main libfontconfig1 amd64 2.11.0-6.3 [329 kB]
debconf: delaying package configuration, since apt-utils is not installed
Fetched 2437 kB in 1s (1269 kB/s)
Selecting previously unselected package libexpat1:amd64.
(Reading database ... 7528 files and directories currently installed.)
Preparing to unpack .../libexpat1_2.1.0-6+b3_amd64.deb ...
Unpacking libexpat1:amd64 (2.1.0-6+b3) ...
Selecting previously unselected package libpng12-0:amd64.
Preparing to unpack .../libpng12-0_1.2.50-2+b2_amd64.deb ...
Unpacking libpng12-0:amd64 (1.2.50-2+b2) ...
Selecting previously unselected package libfreetype6:amd64.
Preparing to unpack .../libfreetype6_2.5.2-3_amd64.deb ...
Unpacking libfreetype6:amd64 (2.5.2-3) ...
Selecting previously unselected package ucf.
Preparing to unpack .../archives/ucf_3.0030_all.deb ...
Moving old data out of the way
Unpacking ucf (3.0030) ...
Selecting previously unselected package fonts-dejavu-core.
Preparing to unpack .../fonts-dejavu-core_2.34-1_all.deb ...
Unpacking fonts-dejavu-core (2.34-1) ...
Selecting previously unselected package fontconfig-config.
Preparing to unpack .../fontconfig-config_2.11.0-6.3_all.deb ...
Unpacking fontconfig-config (2.11.0-6.3) ...
Selecting previously unselected package libfontconfig1:amd64.
Preparing to unpack .../libfontconfig1_2.11.0-6.3_amd64.deb ...
Unpacking libfontconfig1:amd64 (2.11.0-6.3) ...
Setting up libexpat1:amd64 (2.1.0-6+b3) ...
Setting up libpng12-0:amd64 (1.2.50-2+b2) ...
Setting up libfreetype6:amd64 (2.5.2-3) ...
Setting up ucf (3.0030) ...
debconf: unable to initialize frontend: Dialog
debconf: (TERM is not set, so the dialog frontend is not usable.)
debconf: falling back to frontend: Readline
debconf: unable to initialize frontend: Readline
debconf: (Can't locate Term/ReadLine.pm in @INC (you may need to install the Term::ReadLine module) (@INC contains: /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.20.1 /usr/local/share/perl/5.20.1 /usr/lib/x86_64-linux-gnu/perl5/5.20 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.20 /usr/share/perl/5.20 /usr/local/lib/site_perl .) at /usr/share/perl5/Debconf/FrontEnd/Readline.pm line 7.)
debconf: falling back to frontend: Teletype
Setting up fonts-dejavu-core (2.34-1) ...
Setting up fontconfig-config (2.11.0-6.3) ...
debconf: unable to initialize frontend: Dialog
debconf: (TERM is not set, so the dialog frontend is not usable.)
debconf: falling back to frontend: Readline
debconf: unable to initialize frontend: Readline
debconf: (Can't locate Term/ReadLine.pm in @INC (you may need to install the Term::ReadLine module) (@INC contains: /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.20.1 /usr/local/share/perl/5.20.1 /usr/lib/x86_64-linux-gnu/perl5/5.20 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.20 /usr/share/perl/5.20 /usr/local/lib/site_perl .) at /usr/share/perl5/Debconf/FrontEnd/Readline.pm line 7.)
debconf: falling back to frontend: Teletype
Setting up libfontconfig1:amd64 (2.11.0-6.3) ...
Processing triggers for libc-bin (2.19-13) ...
+ apt-get --yes --no-install-recommends install libfreetype6
Reading package lists...
Building dependency tree...
Reading state information...
libfreetype6 is already the newest version.
libfreetype6 set to manually installed.
0 upgraded, 0 newly installed, 0 to remove and 31 not upgraded.
+ apt-mark showmanual
+ grep libfont
libfontconfig1
+ apt-get --yes remove libfreetype6
Reading package lists...
Building dependency tree...
Reading state information...
The following packages were automatically installed and are no longer required:
  fontconfig-config fonts-dejavu-core libexpat1 ucf
Use 'apt-get autoremove' to remove them.
The following packages will be REMOVED:
  libfontconfig1 libfreetype6
0 upgraded, 0 newly installed, 2 to remove and 31 not upgraded.
After this operation, 1460 kB disk space will be freed.
(Reading database ... 7696 files and directories currently installed.)
Removing libfontconfig1:amd64 (2.11.0-6.3) ...
Removing libfreetype6:amd64 (2.5.2-3) ...
Processing triggers for libc-bin (2.19-13) ...
+ apt-mark showmanual
+ grep libfont
DEMO



-- Package-specific info:

-- apt-config dump --

APT "";
APT::Architecture "amd64";
APT::Build-Essential "";
APT::Build-Essential:: "build-essential";
APT::Install-Recommends "1";
APT::Install-Suggests "0";
APT::NeverAutoRemove "";
APT::NeverAutoRemove:: "^firmware-linux.*";
APT::NeverAutoRemove:: "^linux-firmware$";
APT::VersionedKernelPackages "";
APT::VersionedKernelPackages:: "linux-image";
APT::VersionedKernelPackages:: "linux-headers";
APT::VersionedKernelPackages:: "linux-image-extra";
APT::VersionedKernelPackages:: "linux-signed-image";
APT::VersionedKernelPackages:: "kfreebsd-image";
APT::VersionedKernelPackages:: "kfreebsd-headers";
APT::VersionedKernelPackages:: "gnumach-image";
APT::VersionedKernelPackages:: ".*-modules";
APT::VersionedKernelPackages:: ".*-kernel";
APT::VersionedKernelPackages:: "linux-backports-modules-.*";
APT::VersionedKernelPackages:: "linux-tools";
APT::Never-MarkAuto-Sections "";
APT::Never-MarkAuto-Sections:: "metapackages";
APT::Never-MarkAuto-Sections:: "restricted/metapackages";
APT::Never-MarkAuto-Sections:: "universe/metapackages";
APT::Never-MarkAuto-Sections:: "multiverse/metapackages";
APT::Never-MarkAuto-Sections:: "oldlibs";
APT::Never-MarkAuto-Sections:: "restricted/oldlibs";
APT::Never-MarkAuto-Sections:: "universe/oldlibs";
APT::Never-MarkAuto-Sections:: "multiverse/oldlibs";
APT::Update "";
APT::Update::Post-Invoke "";
APT::Update::Post-Invoke:: "rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true";
APT::Architectures "";
APT::Architectures:: "amd64";
APT::Compressor "";
APT::Compressor::. "";
APT::Compressor::.::Name ".";
APT::Compressor::.::Extension "";
APT::Compressor::.::Binary "";
APT::Compressor::.::Cost "1";
APT::Compressor::gzip "";
APT::Compressor::gzip::Name "gzip";
APT::Compressor::gzip::Extension ".gz";
APT::Compressor::gzip::Binary "gzip";
APT::Compressor::gzip::Cost "2";
APT::Compressor::gzip::CompressArg "";
APT::Compressor::gzip::CompressArg:: "-9n";
APT::Compressor::gzip::UncompressArg "";
APT::Compressor::gzip::UncompressArg:: "-d";
APT::Compressor::bzip2 "";
APT::Compressor::bzip2::Name "bzip2";
APT::Compressor::bzip2::Extension ".bz2";
APT::Compressor::bzip2::Binary "false";
APT::Compressor::bzip2::Cost "3";
APT::Compressor::xz "";
APT::Compressor::xz::Name "xz";
APT::Compressor::xz::Extension ".xz";
APT::Compressor::xz::Binary "xz";
APT::Compressor::xz::Cost "4";
APT::Compressor::xz::CompressArg "";
APT::Compressor::xz::CompressArg:: "-6";
APT::Compressor::xz::UncompressArg "";
APT::Compressor::xz::UncompressArg:: "-d";
APT::Compressor::lzma "";
APT::Compressor::lzma::Name "lzma";
APT::Compressor::lzma::Extension ".lzma";
APT::Compressor::lzma::Binary "xz";
APT::Compressor::lzma::Cost "5";
APT::Compressor::lzma::CompressArg "";
APT::Compressor::lzma::CompressArg:: "--format=lzma";
APT::Compressor::lzma::CompressArg:: "-9";
APT::Compressor::lzma::UncompressArg "";
APT::Compressor::lzma::UncompressArg:: "--format=lzma";
APT::Compressor::lzma::UncompressArg:: "-d";
Dir "/";
Dir::State "var/lib/apt/";
Dir::State::lists "lists/";
Dir::State::cdroms "cdroms.list";
Dir::State::mirrors "mirrors/";
Dir::State::extended_states "extended_states";
Dir::State::status "/var/lib/dpkg/status";
Dir::Cache "var/cache/apt/";
Dir::Cache::archives "archives/";
Dir::Cache::srcpkgcache "";
Dir::Cache::pkgcache "";
Dir::Etc "etc/apt/";
Dir::Etc::sourcelist "sources.list";
Dir::Etc::sourceparts "sources.list.d";
Dir::Etc::vendorlist "vendors.list";
Dir::Etc::vendorparts "vendors.list.d";
Dir::Etc::main "apt.conf";
Dir::Etc::netrc "auth.conf";
Dir::Etc::parts "apt.conf.d";
Dir::Etc::preferences "preferences";
Dir::Etc::preferencesparts "preferences.d";
Dir::Etc::trusted "trusted.gpg";
Dir::Etc::trustedparts "trusted.gpg.d";
Dir::Bin "";
Dir::Bin::methods "/usr/lib/apt/methods";
Dir::Bin::solvers "";
Dir::Bin::solvers:: "/usr/lib/apt/solvers";
Dir::Bin::dpkg "/usr/bin/dpkg";
Dir::Bin::bzip2 "/bin/bzip2";
Dir::Bin::xz "/usr/bin/xz";
Dir::Bin::lzma "/usr/bin/xz";
Dir::Media "";
Dir::Media::MountPath "/media/apt";
Dir::Log "var/log/apt";
Dir::Log::Terminal "term.log";
Dir::Log::History "history.log";
Dir::Ignore-Files-Silently "";
Dir::Ignore-Files-Silently:: "~$";
Dir::Ignore-Files-Silently:: "\.disabled$";
Dir::Ignore-Files-Silently:: "\.bak$";
Dir::Ignore-Files-Silently:: "\.dpkg-[a-z]+$";
Dir::Ignore-Files-Silently:: "\.save$";
Dir::Ignore-Files-Silently:: "\.orig$";
Dir::Ignore-Files-Silently:: "\.distUpgrade$";
Acquire "";
Acquire::cdrom "";
Acquire::cdrom::mount "/media/cdrom/";
Acquire::GzipIndexes "true";
Acquire::CompressionTypes "";
Acquire::CompressionTypes::Order "";
Acquire::CompressionTypes::Order:: "gz";
Acquire::Languages "";
Acquire::Languages:: "none";
DPkg "";
DPkg::Pre-Install-Pkgs "";
DPkg::Pre-Install-Pkgs:: "/usr/sbin/dpkg-preconfigure --apt || true";
DPkg::Post-Invoke "";
DPkg::Post-Invoke:: "rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true";
CommandLine "";
CommandLine::AsString "apt-config dump";

-- (no /etc/apt/preferences present) --


-- /etc/apt/sources.list --

deb http://http.debian.net/debian sid main

-- System Information:
Debian Release: 8.0
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.13.0-39-generic (SMP w/24 CPU cores)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/dash
Init: unable to detect

Versions of packages apt depends on:
ii  debian-archive-keyring  2014.3
ii  gnupg                   1.4.18-6
ii  libapt-pkg4.12          1.0.9.6
ii  libc6                   2.19-13
ii  libgcc1                 1:4.9.2-10
ii  libstdc++6              4.9.2-10

apt recommends no packages.

Versions of packages apt suggests:
pn  apt-doc                      <none>
pn  aptitude | synaptic | wajig  <none>
pn  dpkg-dev                     <none>
ii  python-apt                   0.9.3.11

-- no debconf information

--- End Message ---

--- Begin Message ---

To: buck <buck.2019@gmail.com>, 779960-done@bugs.debian.org

Subject: Re: Bug#779960: apt-get remove doesn't respect dependencies' manual-flag

From: David Kalnischkies <david@kalnischkies.de>

Date: Sat, 7 Mar 2015 01:08:33 +0100

Message-id: <20150307000833.GA25299@crossbow>

In-reply-to: <[🔎] 20150306210458.836.591.reportbug@93376f1fcbd3>

References: <[🔎] 20150306210458.836.591.reportbug@93376f1fcbd3>
On Fri, Mar 06, 2015 at 09:04:58PM +0000, buck wrote:
>    * What was the outcome of this action?
> Some  manually installed packages were automatically removed.

libfontconfig1 depends on libfreetype6, so if you request the removal of
libfreetype6 apt has no other choice than to remove libfontconfig1 as
well.

This has nothing to do with automatic removal of unused packages (which
neither of them are) and apt doesn't do it unrequested, its the removal
of packages which have to be removed as well if we want to satisfy your
request.

The solution for you might actually be to mark the packages you think
you don't need as automatic and run autoremove to let apt figure out if
the packages are really unneeded or if something else (manually)
installed still needs it.


Anyway, this isn't a bug (its not even a feature), its the only possible
behaviour apt can have based on your request. As the radio plays:
"Be careful what you wish for, 'cause you just might get it"
(surprising how many songs include this line…)


Best regards

David Kalnischkies
Attachment: signature.asc
Description: Digital signature

--- End Message ---

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- Bug#779960: apt-get remove doesn't respect dependencies' manual-flag
  - From: buck <buck.2019@gmail.com>

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