module Gem2Rpm::Helpers

Public Class Methods

check_str_on_conditions(str, conditions) click to toggle source

Compares string to the given regexp conditions

# 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) click to toggle source

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
expand_pessimistic_requirement(requirement) click to toggle source

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
expand_requirement(requirements) click to toggle source

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
requirement_versions_to_rpm(requirement) click to toggle source

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)
  expand_requirement(requirement.requirements).map do |op, version|
    version == Gem::Version.new(0) ? "" : "#{op} #{version}"
  end
end
word_wrap(text, line_width = 80) click to toggle source

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