Method: LibGems::DependencyList#spec_predecessors

Defined in:
lib/libgems/dependency_list.rb

#spec_predecessors ⇒ Object

Return a hash of predecessors. result[spec] is an Array of gemspecs that have a dependency satisfied by the named gemspec.



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# File 'lib/libgems/dependency_list.rb', line 154

def spec_predecessors
  result = Hash.new { |h,k| h[k] = [] }

  specs = @specs.sort.reverse

  specs.each do |spec|
    specs.each do |other|
      next if spec == other

      other.dependencies.each do |dep|
        if spec.satisfies_requirement? dep then
          result[spec] << other
        end
      end
    end
  end

  result
end