Module: Gem2Rpm::Helpers

Defined in:
lib/gem2rpm/helpers.rb

Class Method Summary collapse

Class Method Details

.check_str_on_conditions(str, conditions) ⇒ Object

Compares string to the given regexp conditions



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# File 'lib/gem2rpm/helpers.rb', line 45

def self.check_str_on_conditions(str, conditions)
  conditions.any? do |condition|
    condition.is_a?(Regexp) ? condition.match(str) : condition == str
  end
end

.expand_not_equal_requirement(requirement) ⇒ Object

Expands the not equal version operator ‘!=’ into equivalent ‘<’ and ‘>’ pair.



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# File 'lib/gem2rpm/helpers.rb', line 32

def self.expand_not_equal_requirement(requirement)
  return ['<', requirement.last], ['>', requirement.last]
end

.expand_pessimistic_requirement(requirement) ⇒ Object

Expands the pessimistic version operator ‘~>’ into equivalent ‘>=’ and ‘<’ pair.



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# File 'lib/gem2rpm/helpers.rb', line 25

def self.expand_pessimistic_requirement(requirement)
  next_version = Gem::Version.create(requirement.last).bump
  return ['>=', requirement.last], ['<', next_version]
end

.expand_requirement(requirements) ⇒ Object

Expands ‘~>’ and ‘!=’ gem requirements.



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# File 'lib/gem2rpm/helpers.rb', line 10

def self.expand_requirement(requirements)
  requirements.inject([]) do |output, r|
    output.concat case r.first
    when '~>'
      expand_pessimistic_requirement(r)
    when '!='
      expand_not_equal_requirement(r)
    else
      [r]
    end
  end
end

.requirement_versions_to_rpm(requirement) ⇒ Object

Converts Gem::Requirement into array of requirements strings compatible with RPM .spec file.



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# File 'lib/gem2rpm/helpers.rb', line 38

def self.requirement_versions_to_rpm(requirement)
  expand_requirement(requirement.requirements).map do |op, version|
    version == Gem::Version.new(0) ? "" : "#{op} #{version}"
  end
end

.word_wrap(text, line_width = 80) ⇒ Object

Taken with modification from the word_wrap method in ActionPack. Text::Format does the same thing better.



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# File 'lib/gem2rpm/helpers.rb', line 5

def self.word_wrap(text, line_width = 80)
  text.gsub(/\n/, "\n\n").gsub(/(.{1,#{line_width}})(\s+|$)/, "\\1\n").strip
end