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Versions: 21
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Stored size: 1.86 KB
Contents
module Net; module SSH
# A class for describing the current version of a library. The version
# consists of three parts: the +major+ number, the +minor+ number, and the
# +tiny+ (or +patch+) number.
#
# Two Version instances may be compared, so that you can test that a version
# of a library is what you require:
#
# require 'net/ssh/version'
#
# if Net::SSH::Version::CURRENT < Net::SSH::Version[2,1,0]
# abort "your software is too old!"
# end
class Version
include Comparable
# A convenience method for instantiating a new Version instance with the
# given +major+, +minor+, and +tiny+ components.
def self.[](major, minor, tiny)
new(major, minor, tiny)
end
attr_reader :major, :minor, :tiny
# Create a new Version object with the given components.
def initialize(major, minor, tiny)
@major, @minor, @tiny = major, minor, tiny
end
# Compare this version to the given +version+ object.
def <=>(version)
to_i <=> version.to_i
end
# Converts this version object to a string, where each of the three
# version components are joined by the '.' character. E.g., 2.0.0.
def to_s
@to_s ||= [@major, @minor, @tiny].join(".")
end
# Converts this version to a canonical integer that may be compared
# against other version objects.
def to_i
@to_i ||= @major * 1_000_000 + @minor * 1_000 + @tiny
end
# The major component of this version of the Net::SSH library
MAJOR = 2
# The minor component of this version of the Net::SSH library
MINOR = 0
# The tiny component of this version of the Net::SSH library
TINY = 11
# The current version of the Net::SSH library as a Version instance
CURRENT = new(MAJOR, MINOR, TINY)
# The current version of the Net::SSH library as a String
STRING = CURRENT.to_s
end
end; end
Version data entries
21 entries across 21 versions & 4 rubygems