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#!/usr/bin/ruby
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#--
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# Ruby-Debian, a Ruby interface for Debian packaging aspects
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# Copyright (c) 2009 Marc Dequènes (Duck) <Duck@DuckCorp.org>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#++
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require 'debian_apt'
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module Debian_apt
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def self.included(base)
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@@op_to_opcode = {}
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i = 1
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while true
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op = Debian_apt::PkgCache.comp_type_deb(i)
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break if op == ""
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@@op_to_opcode[op] = i
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i += 1
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end
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end
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def compare_versions(lver, rver)
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Debian_apt.debVS.cmp_version(lver.to_s, rver.to_s)
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end
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def check_version_constraint(lver, op, rver)
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Debian_apt.debVS.check_dep(lver.to_s, @@op_to_opcode[op], rver.to_s)
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end
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end
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module Debian
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class DebianVersion
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include Comparable
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include Debian_apt
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attr_accessor :epoch, :upstream, :revision
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DEB_TILDE = /~(.*)$/
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def initialize(version = nil)
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if version.nil? or version == ""
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@epoch = 0
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@upstream = nil
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@revision = nil
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else
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@upstream = Debian_apt.debVS.upstream_version(version)
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if @upstream == ""
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@epoch = 0
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@upstream = nil
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@revision = nil
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else
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@epoch, @revision = version.split(@upstream, 2)
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@epoch = @epoch ? @epoch[0..-2].to_i : 0
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@revision = @revision[1..-1] if @revision
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end
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# magic fence
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raise "DebianVersion bug in parsing. Stopping before breaking the world ! (given version was: '#{version}', result was: '#{self.version}')" if self.version != version
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end
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end
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def version
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if @upstream.nil? or @upstream == ""
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ver = nil
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else
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ver = "#{@upstream}"
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# @revision can be nil for native packages
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ver += "-#{@revision}" unless @revision.nil?
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ver = "#{@epoch}:#{ver}" unless @epoch == 0
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end
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ver
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end
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def to_s
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ver = self.version
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(ver.nil?) ? "none" : ver
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end
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def <=>(rver)
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compare_versions(self.version, rver.version)
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end
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def is_native?
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@revision.nil?
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end
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def compare(op, rver)
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check_version_constraint(self.version, op, rver.version)
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end
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def compare_epochless(op, rver)
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v1 = self.dup
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v2 = rver.dup
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v1.epoch = 0
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v2.epoch = 0
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check_version_constraint(v1.version, op, v2.version)
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end
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def compare_upstream(op, rver, remove_tilde_part = false)
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v1 = self.dup
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v2 = rver.dup
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if remove_tilde_part
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v1.remove_upstream_tilde_part
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v2.remove_upstream_tilde_part
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end
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check_version_constraint(v1.upstream, op, v2.upstream)
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end
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def compare_revision(op, rver)
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check_version_constraint(self.revision, op, rver.revision)
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end
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def compare_epoch(op, rver)
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check_version_constraint(self.epoch, op, rver.epoch)
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end
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def upstream_tilde_part
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@upstream =~ DEB_TILDE
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$1
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end
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def remove_upstream_tilde_part
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# trigger a bug with dupped objects
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#@upstream.gsub!(DEB_TILDE, "")
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@upstream = @upstream.gsub(DEB_TILDE, "")
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end
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def set_upstream_tilde_part(str)
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remove_upstream_tilde_part
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@upstream += "~#{str}"
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end
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def revision_tilde_part
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@revision =~ DEB_TILDE
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$1
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end
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def remove_revision_tilde_part
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# trigger a bug with dupped objects
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#@revision.gsub!(DEB_TILDE, "")
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@revision = @revision.gsub(DEB_TILDE, "")
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end
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def set_revision_tilde_part(str)
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remove_revision_tilde_part
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@revision += "~#{str}"
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end
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end
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end
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