65 lines
1.9 KiB
Ruby
65 lines
1.9 KiB
Ruby
# -*- coding: binary -*-
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module Net; module SSH
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# A class for describing the current version of a library. The version
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# consists of three parts: the +major+ number, the +minor+ number, and the
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# +tiny+ (or +patch+) number.
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#
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# Two Version instances may be compared, so that you can test that a version
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# of a library is what you require:
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#
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# require 'net/ssh/version'
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#
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# if Net::SSH::Version::CURRENT < Net::SSH::Version[2,1,0]
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# abort "your software is too old!"
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# end
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class Version
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include Comparable
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# A convenience method for instantiating a new Version instance with the
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# given +major+, +minor+, and +tiny+ components.
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def self.[](major, minor, tiny)
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new(major, minor, tiny)
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end
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attr_reader :major, :minor, :tiny, :msf3
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# Create a new Version object with the given components.
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def initialize(major, minor, tiny)
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@major, @minor, @tiny = major, minor, tiny
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@msf3 = true
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end
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# Compare this version to the given +version+ object.
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def <=>(version)
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to_i <=> version.to_i
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end
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# Converts this version object to a string, where each of the three
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# version components are joined by the '.' character. E.g., 2.0.0.
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def to_s
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@to_s ||= [@major, @minor, @tiny].join(".")
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end
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# Converts this version to a canonical integer that may be compared
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# against other version objects.
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def to_i
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@to_i ||= @major * 1_000_000 + @minor * 1_000 + @tiny
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end
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# The major component of this version of the Net::SSH library
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MAJOR = 2
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# The minor component of this version of the Net::SSH library
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MINOR = 0
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# The tiny component of this version of the Net::SSH library
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TINY = 12
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# The current version of the Net::SSH library as a Version instance
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CURRENT = new(MAJOR, MINOR, TINY)
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# The current version of the Net::SSH library as a String
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STRING = CURRENT.to_s
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end
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end; end
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