Class: AmplitudeExperiment::Evaluation::SemanticVersion

Inherits:
Object
  • Object
show all
Includes:
Comparable
Defined in:
lib/experiment/evaluation/semantic_version.rb

Constant Summary collapse

MAJOR_MINOR_REGEX = 
'(\d+)\.(\d+)'
PATCH_REGEX = 
'(\d+)'
PRERELEASE_REGEX = 
'(-(([-\w]+\.?)*))?'
VERSION_PATTERN = 
/^#{MAJOR_MINOR_REGEX}(\.#{PATCH_REGEX}#{PRERELEASE_REGEX})?$/.freeze

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(major, minor, patch, pre_release = nil) ⇒ SemanticVersion

Returns a new instance of SemanticVersion.



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# File 'lib/experiment/evaluation/semantic_version.rb', line 15

def initialize(major, minor, patch, pre_release = nil)
  @major = major
  @minor = minor
  @patch = patch
  @pre_release = pre_release
end

Instance Attribute Details

#major ⇒ Object (readonly)

Returns the value of attribute major.



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# File 'lib/experiment/evaluation/semantic_version.rb', line 8

def major
  @major
end

#minor ⇒ Object (readonly)

Returns the value of attribute minor.



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# File 'lib/experiment/evaluation/semantic_version.rb', line 8

def minor
  @minor
end

#patch ⇒ Object (readonly)

Returns the value of attribute patch.



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# File 'lib/experiment/evaluation/semantic_version.rb', line 8

def patch
  @patch
end

#pre_release ⇒ Object (readonly)

Returns the value of attribute pre_release.



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# File 'lib/experiment/evaluation/semantic_version.rb', line 8

def pre_release
  @pre_release
end

Class Method Details

.parse(version) ⇒ Object 



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# File 'lib/experiment/evaluation/semantic_version.rb', line 22

def self.parse(version)
  return nil if version.nil?

  match = VERSION_PATTERN.match(version)
  return nil unless match

  major = match[1].to_i
  minor = match[2].to_i
  patch = match[4]&.to_i || 0
  pre_release = match[5]

  new(major, minor, patch, pre_release)
end

Instance Method Details

#<=>(other) ⇒ Object 



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# File 'lib/experiment/evaluation/semantic_version.rb', line 36

def <=>(other)
  return nil unless other.is_a?(SemanticVersion)

  result = major <=> other.major
  return result unless result.zero?

  result = minor <=> other.minor
  return result unless result.zero?

  result = patch <=> other.patch
  return result unless result.zero?

  return 1 if !pre_release && other.pre_release
  return -1 if pre_release && !other.pre_release
  return 0 if !pre_release && !other.pre_release

  pre_release <=> other.pre_release
end