Class: Dependabot::NpmAndYarn::Requirement

Inherits:
Gem::Requirement
  • Object
show all
Defined in:
lib/dependabot/npm_and_yarn/requirement.rb

Constant Summary collapse

AND_SEPARATOR = 
/(?<=[a-zA-Z0-9*])\s+(?:&+\s+)?(?!\s*[|-])/.freeze
OR_SEPARATOR = 
/(?<=[a-zA-Z0-9*])\s*\|+/.freeze
PATTERN_RAW = 
"\\s*(#{quoted})?\\s*(#{version_pattern})\\s*"
PATTERN = 
/\A#{PATTERN_RAW}\z/.freeze

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*requirements) ⇒ Requirement

Returns a new instance of Requirement.



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# File 'lib/dependabot/npm_and_yarn/requirement.rb', line 47

def initialize(*requirements)
  requirements = requirements.flatten.flat_map do |req_string|
    convert_js_constraint_to_ruby_constraint(req_string)
  end

  super(requirements)
end

Class Method Details

.parse(obj) ⇒ Object 



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# File 'lib/dependabot/npm_and_yarn/requirement.rb', line 19

def self.parse(obj)
  return ["=", NpmAndYarn::Version.new(obj.to_s)] if obj.is_a?(Gem::Version)

  unless (matches = PATTERN.match(obj.to_s))
    msg = "Illformed requirement [#{obj.inspect}]"
    raise BadRequirementError, msg
  end

  return DefaultRequirement if matches[1] == ">=" && matches[2] == "0"

  [matches[1] || "=", NpmAndYarn::Version.new(matches[2])]
end

.requirements_array(requirement_string) ⇒ Object

Returns an array of requirements. At least one requirement from the returned array must be satisfied for a version to be valid.



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# File 'lib/dependabot/npm_and_yarn/requirement.rb', line 34

def self.requirements_array(requirement_string)
  return [new(nil)] if requirement_string.nil?

  # Removing parentheses is technically wrong but they are extremely
  # rarely used.
  # TODO: Handle complicated parenthesised requirements
  requirement_string = requirement_string.gsub(/[()]/, "")
  requirement_string.strip.split(OR_SEPARATOR).map do |req_string|
    requirements = req_string.strip.split(AND_SEPARATOR)
    new(requirements)
  end
end