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|
module Puppet::Util::Package::Version
class Pip
include Comparable
VERSION_PATTERN = "
v?
(?:
(?:(?<epoch>[0-9]+)!)? # epoch
(?<release>[0-9]+(?:\\.[0-9]+)*) # release segment
(?<pre> # pre-release
[-_\\.]?
(?<pre_l>(a|b|c|rc|alpha|beta|pre|preview))
[-_\\.]?
(?<pre_n>[0-9]+)?
)?
(?<post> # post release
(?:-(?<post_n1>[0-9]+))
|
(?:
[-_\\.]?
(?<post_l>post|rev|r)
[-_\\.]?
(?<post_n2>[0-9]+)?
)
)?
(?<dev> # dev release
[-_\\.]?
(?<dev_l>dev)
[-_\\.]?
(?<dev_n>[0-9]+)?
)?
)
(?:\\+(?<local>[a-z0-9]+(?:[-_\\.][a-z0-9]+)*))? # local version
".freeze
def self.parse(version)
raise ValidationFailure, version.to_s unless version.is_a? String
matched = version.match(Regexp.new(("^\\s*") + VERSION_PATTERN + ("\\s*$"), Regexp::EXTENDED | Regexp::MULTILINE | Regexp::IGNORECASE))
raise ValidationFailure, version unless matched
new(matched)
end
def self.compare(version_a, version_b)
version_a = parse(version_a) unless version_a.is_a?(self)
version_b = parse(version_b) unless version_b.is_a?(self)
version_a <=> version_b
end
def to_s
parts = []
parts.push("#{@epoch_data}!") if @epoch_data && @epoch_data != 0
parts.push(@release_data.join(".")) if @release_data
parts.push(@pre_data.join) if @pre_data
parts.push(".post#{@post_data[1]}") if @post_data
parts.push(".dev#{@dev_data[1]}") if @dev_data
parts.push("+#{@local_data.join(".")}") if @local_data
parts.join
end
alias inspect to_s
def eql?(other)
other.is_a?(self.class) && key.eql?(other.key)
end
alias == eql?
def <=>(other)
raise ValidationFailure, other.to_s unless other.is_a?(self.class)
compare(key, other.key)
end
attr_reader :key
private
def initialize(matched)
@epoch_data = matched[:epoch].to_i
@release_data = matched[:release].split('.').map(&:to_i) if matched[:release]
@pre_data = parse_letter_version(matched[:pre_l], matched[:pre_n]) if matched[:pre_l] || matched[:pre_n]
@post_data = parse_letter_version(matched[:post_l], matched[:post_n1] || matched[:post_n2]) if matched[:post_l] || matched[:post_n1] || matched[:post_n2]
@dev_data = parse_letter_version(matched[:dev_l], matched[:dev_n]) if matched[:dev_l] || matched[:dev_n]
@local_data = parse_local_version(matched[:local]) if matched[:local]
@key = compose_key(@epoch_data, @release_data, @pre_data, @post_data, @dev_data, @local_data)
end
def parse_letter_version(letter, number)
if letter
number = 0 if !number
letter.downcase!
if letter == "alpha"
letter = "a"
elsif letter == "beta"
letter = "b"
elsif ["c", "pre", "preview"].include?(letter)
letter = "rc"
elsif ["rev", "r"].include?(letter)
letter = "post"
end
return [letter, number.to_i]
end
["post", number.to_i] if !letter && number
end
def parse_local_version(local_version)
local_version.split(/[\\._-]/).map{|part| part =~ /[0-9]+/ && part !~ /[a-zA-Z]+/ ? part.to_i : part.downcase} if local_version
end
def compose_key(epoch, release, pre, post, dev, local)
release_key = release.reverse
release_key.each_with_index do |element, index|
break unless element == 0
release_key.delete_at(index) unless release_key.at(index + 1) != 0
end
release_key.reverse!
if !pre && !post && dev
pre_key = -Float::INFINITY
else
pre_key = pre || Float::INFINITY
end
post_key = post || -Float::INFINITY
dev_key = dev || Float::INFINITY
if !local
local_key = [[-Float::INFINITY, ""]]
else
local_key = local.map{|i| (i.is_a? Integer) ? [i, ""] : [-Float::INFINITY, i]}
end
[epoch, release_key, pre_key, post_key, dev_key, local_key]
end
def compare(this, other)
if (this.is_a? Array) && (other.is_a? Array)
this << -Float::INFINITY if this.length < other.length
other << -Float::INFINITY if this.length > other.length
this.each_with_index do |element, index|
return compare(element, other.at(index)) if element != other.at(index)
end
elsif (this.is_a? Array) && !(other.is_a? Array)
raise Puppet::Error, 'Cannot compare #{this} (Array) with #{other} (#{other.class}). Only ±Float::INFINITY accepted.' unless other.abs == Float::INFINITY
return other == -Float::INFINITY ? 1 : -1
elsif !(this.is_a? Array) && (other.is_a? Array)
raise Puppet::Error, 'Cannot compare #{this} (#{this.class}) with #{other} (Array). Only ±Float::INFINITY accepted.' unless this.abs == Float::INFINITY
return this == -Float::INFINITY ? -1 : 1
end
this <=> other
end
class ValidationFailure < ArgumentError
def initialize(version)
super("#{version} is not a valid python package version. Please refer to https://www.python.org/dev/peps/pep-0440/.")
end
end
end
end
|
