Bug#839403: apt: define default pin priority for a source in sources.list directly

[Raphaël Hertzog <hertzog@debian.org>]

Package: apt
Version: 1.3
Severity: wishlist

Hello I would like to be able to use something like this in my
sources.list:

deb [pin-priority=500] http://ftp.debian.org/debian experimental main

(or "Pin-Priority: 500" in a RFC822 formatted sources.list entry)

This would let me easily override the NotAutomatic flag... without having
to modify another file and without having to look up what is the proper
tag to match that specific repository.

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (500, 'oldstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.7.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.utf8, LC_CTYPE=fr_FR.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages apt depends on:
ii  adduser                 3.115
ii  debian-archive-keyring  2014.3
ii  gpgv                    2.1.15-3
ii  init-system-helpers     1.45
ii  libapt-pkg5.0           1.3
ii  libc6                   2.24-3
ii  libgcc1                 1:6.2.0-5
ii  libstdc++6              6.2.0-5

Versions of packages apt recommends:
ii  gnupg   2.1.15-3
ii  gnupg1  1.4.21-1
ii  gnupg2  2.1.15-3

Versions of packages apt suggests:
ii  apt-doc         1.3
ii  aptitude        0.8.3-1
ii  dpkg-dev        1.18.10
ii  powermgmt-base  1.31+nmu1
ii  python-apt      1.1.0~beta5
ii  synaptic        0.83+b1

-- no debconf information