Class: Doing::Version

Inherits:
Object show all
Defined in:
lib/doing/changelog/version.rb

Overview

Semantic versioning

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(string) ⇒ Version

Returns a new instance of Version.



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# File 'lib/doing/changelog/version.rb', line 8

def initialize(string)
  @maj, @min, @patch = version_to_a(string)
end

Instance Attribute Details

#maj ⇒ Object (readonly)

Returns the value of attribute maj.



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# File 'lib/doing/changelog/version.rb', line 6

def maj
  @maj
end

#min ⇒ Object (readonly)

Returns the value of attribute min.



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# File 'lib/doing/changelog/version.rb', line 6

def min
  @min
end

#patch ⇒ Object (readonly)

Returns the value of attribute patch.



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# File 'lib/doing/changelog/version.rb', line 6

def patch
  @patch
end

Instance Method Details

#compare(other, comp, inclusive: false) ⇒ Object 



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# File 'lib/doing/changelog/version.rb', line 40

def compare(other, comp, inclusive: false)
  case comp
  when :older
    if @maj <= other.maj
      if @maj < other.maj
        true
      elsif @maj == other.maj && (other.min.nil? || @min < other.min)
        true
      elsif @maj == other.maj && @min == other.min
        if other.patch.nil?
          false
        else
          inclusive ? @patch <= other.patch : @patch < other.patch
        end
      else
        false
      end
    else
      false
    end
  when :newer
    if @maj >= other.maj
      if @maj > other.maj
        true
      elsif @maj == other.maj && (other.min.nil? || @min > other.min)
        true
      elsif @maj == other.maj && @min == other.min
        if other.patch.nil?
          false
        else
          inclusive ? @patch >= other.patch : @patch > other.patch
        end
      else
        false
      end
    else
      false
    end
  when :equal
    if @maj == other.maj
      if other.min.nil?
        true
      elsif wild?(other.min)
        @min.to_s =~ /^#{other.min}/ ? true : false
      else
        if @min == other.min
          if other.patch.nil?
            true
          elsif wild?(other.patch)
            @patch.to_s =~ /^#{other.patch}/ ? true : false
          else
            @patch == other.patch
          end
        else
          false
        end
      end
    end
  end
end

#to_s ⇒ Object 



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# File 'lib/doing/changelog/version.rb', line 101

def to_s
  "#{@maj}.#{@min || 0}.#{@patch || 0}"
end

#version_to_a(string) ⇒ Object 



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# File 'lib/doing/changelog/version.rb', line 12

def version_to_a(string)
  raise 'Version not a string' unless string.is_a?(String)

  v = string.match(/(?<maj>\d+)(?:\.(?<min>[\d*?]+))?(?:\.(?<patch>[\d*?]+))?/)

  raise 'Error parsing semantic version string' if v.nil?

  maj = v['maj'].to_i
  min = case v['min']
        when /[*?]/
          v['min'].sub(/(\d+)?[^\d]/, '\1\d+')
        when /^[0-9]+$/
          v['min'].to_i
        end
  pat = case v['patch']
        when /[*?]/
          v['patch'].sub(/(\d+)?[^\d]/, '\1\d+')
        when /^[0-9]+$/
          v['patch'].to_i
        end
  [maj, min, pat]
end

#wild?(val) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/doing/changelog/version.rb', line 35

def wild?(val)
  val.is_a?(String)
end