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#
# apt_preferences.rb - ruby interface for APT preferences
# Copyright (C) 2004 Masato Taruishi <taru@debian.org>
# Copyright (C) 2009-2014 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
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
module Debian
class AptPreferences
class Pin < Hash
def initialize( buf )
@buf = buf
buf.each_line do |line|
if /(\S+): (.+)$/ =~ line
self[$1] = "" if self[$1] == nil
self[$1] << $2
end
end
end
def listbugs?
if (/Pinned by apt-listbugs/ =~ self["Explanation"])
return true
end
return false
end
def to_s
@buf.to_s
end
end
def initialize( file = "/etc/apt/preferences.d/apt-listbugs" )
@pins = []
open(file) { |io|
@pref = io.read
}
_each_pin do |pin|
@pins << Pin.new(pin)
end
end
def _each_pin
buf = ""
@pref.each_line do |line|
case line
when "\n"
if buf != ""
yield buf
buf = ""
end
else
buf << line
end
end
yield buf if buf != ""
end
attr_reader :pins
def filter( pkg_keys = [], out = $stdout, remainder = nil )
_each_pin do |pin|
p = Pin.new(pin)
if ! p.listbugs? || pkg_keys.include?( p["Package"] )
out.puts pin
out.puts ""
else
if remainder != nil
remainder.puts pin
remainder.puts ""
end
end
end
end
end
end
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