Class: Chef::Cookbook::Metadata::Version

Inherits:
Object
  • Object
show all
Includes:
Comparable
Defined in:
lib/chef/cookbook/metadata/version.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(str = "") ⇒ Version

Returns a new instance of Version.



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# File 'lib/chef/cookbook/metadata/version.rb', line 30

def initialize(str="")
  @major, @minor, @patch = _parse(str)
end

Instance Attribute Details

#major ⇒ Object

Returns the value of attribute major.



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# File 'lib/chef/cookbook/metadata/version.rb', line 26

def major
  @major
end

#minor ⇒ Object

Returns the value of attribute minor.



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# File 'lib/chef/cookbook/metadata/version.rb', line 26

def minor
  @minor
end

#patch ⇒ Object

Returns the value of attribute patch.



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# File 'lib/chef/cookbook/metadata/version.rb', line 26

def patch
  @patch
end

Instance Method Details

#<=>(v) ⇒ Object 



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# File 'lib/chef/cookbook/metadata/version.rb', line 53

def <=>(v)
  major, minor, patch = (
    [ :major, :minor, :patch ].collect do |method|
      self.send(method) <=> v.send(method)
    end
  )

  Chef::Log.debug "(#{self.to_s}/#{v.to_s}) major,minor,patch: #{[major,minor,patch].join(',')}"

  # all these returns feels like C, surely there is a better way!

  if major == 0 && minor == 0 && patch == 0
    comp = 0
  end

  if major == 1
    comp = 1
  end

  if major == 0 && minor == 1 && patch == -1
    comp = 1
  end

  if minor == 1 && major == 0 && patch == 0
    comp = 1
  end

  if patch == 1 && major == 0 && minor == 0
    comp = 1
  end

  return (comp || -1)
end

#_parse(str = "") ⇒ Object 



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# File 'lib/chef/cookbook/metadata/version.rb', line 34

def _parse(str="")
  @major, @minor, @patch = case str.to_s
    when /^(\d+)\.(\d+)\.(\d+)$/
      [ $1.to_i, $2.to_i, $3.to_i ]
    when /^(\d+)\.(\d+)$/
      [ $1.to_i, $2.to_i, 0 ]
    else
      raise "Metadata version '#{str.to_s}' does not match 'x.y.z' or 'x.y'"
  end
end

#inspect ⇒ Object 



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# File 'lib/chef/cookbook/metadata/version.rb', line 45

def inspect
  "#{@major}.#{@minor}.#{@patch}"
end

#to_s ⇒ Object 



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# File 'lib/chef/cookbook/metadata/version.rb', line 49

def to_s
  "#{@major}.#{@minor}.#{@patch}"
end