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#!/usr/bin/ruby
#
# migratepins: migrates all apt-listbugs-managed pins from
# /etc/apt/preferences to <tmpdir>/apt-listbugs
# and everything else to <tmpdir>/preferences
#
# Copyright (C) 2009 Ryan Niebur <ryan@debian.org>
# Copyright (C) 2014 Francesco Poli <invernomuto@paranoici.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License with
# the Debian GNU/Linux distribution in file /usr/share/common-licenses/GPL-2;
# if not, write to the Free Software Foundation, Inc., 51 Franklin St,
# Fifth Floor, Boston, MA 02110-1301, USA.
#
#
if File.expand_path(__FILE__).match(/^\/usr\/share\/apt-listbugs\//)
$LOAD_PATH.unshift("/usr/share/apt-listbugs")
else
$LOAD_PATH.unshift(File.join(File.dirname(__FILE__), "lib"))
end
require 'gettext'
include GetText
GetText::bindtextdomain("apt-listbugs")
require 'debian/apt_preferences'
require 'tmpdir'
# create a temporary directory to split APT preferences
# and print its name to stdout
dest_dir = Dir.mktmpdir('pin_migration_')
puts dest_dir
# read APT preferences from /etc/apt/preferences
pref_file = "/etc/apt/preferences"
begin
p = Debian::AptPreferences.new(pref_file)
rescue Errno::ENOENT
$stderr.puts sprintf("Cannot find %s: exiting!", pref_file) if $DEBUG
exit 0
rescue Errno::EACCES
$stderr.puts _("E: ") + sprintf(_("Cannot read from %s"), pref_file)
exit 1
rescue
$stderr.puts _("E: ") + "#{$!}"
exit 1
end
# split APT preferences:
# all apt-listbugs-managed pins go to dest_dir/apt-listbugs
# everything else goes to dest_dir/preferences
new_pref_file = File.open(dest_dir + "/preferences", "w")
new_aptl_file = File.open(dest_dir + "/apt-listbugs", "w")
p.filter( [], new_pref_file, new_aptl_file )
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