Expands the not equal version operator '!=' into equivalent '<' and '>' pair.
# File lib/gem2rpm/helpers.rb, line 32 def self.expand_not_equal_requirement(requirement) return ['<', requirement.last], ['>', requirement.last] end
Expands the pessimistic version operator '~>' into equivalent '>=' and '<' pair.
# 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
Expands '~>' and '!=' gem requirements.
# 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
Converts Gem::Requirement into array of requirements strings compatible with RPM .spec file.
# File lib/gem2rpm/helpers.rb, line 38 def self.requirement_versions_to_rpm(requirement) self.expand_requirement(requirement.requirements).map do |op, version| version == Gem::Version.new(0) ? "" : "#{op} #{version}" end end
Taken with modification from the ::word_wrap method in ActionPack. Text::Format does the same thing better.
# 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