123456789_123456789_123456789_123456789_123456789_

Class: Bundler::PubGrub::Strategy

Relationships & Source Files
Inherits: Object
Defined in: lib/bundler/vendor/pub_grub/lib/pub_grub/strategy.rb

Class Method Summary

Instance Method Summary

Constructor Details

.new(source) ⇒ Strategy

[ GitHub ] 

  


# File 'lib/bundler/vendor/pub_grub/lib/pub_grub/strategy.rb', line 3



def initialize(source)
  @source = source

  @root_package = Package.root
  @root_version = Package.root_version

  @version_indexes = Hash.new do |h,k|
    if k == @root_package
      h[k] = { @root_version => 0 }
    else
      h[k] = @source.all_versions_for(k).each.with_index.to_h
    end
  end
end


  







Instance Method Details



  

    #most_preferred_version_of(package, range)   (private)
  

  [ GitHub ]


  

  


# File 'lib/bundler/vendor/pub_grub/lib/pub_grub/strategy.rb', line 26



def most_preferred_version_of(package, range)
  versions = @source.versions_for(package, range)

  indexes = @version_indexes[package]
  versions.min_by { |version| indexes[version] }
end


  








  

    #next_package_and_version(unsatisfied)  
  

  [ GitHub ]


  

  


# File 'lib/bundler/vendor/pub_grub/lib/pub_grub/strategy.rb', line 18



def next_package_and_version(unsatisfied)
  package, range = next_term_to_try_from(unsatisfied)

  [package, most_preferred_version_of(package, range)]
end


  








  

    #next_term_to_try_from(unsatisfied)   (private)
  

  [ GitHub ]


  

  


# File 'lib/bundler/vendor/pub_grub/lib/pub_grub/strategy.rb', line 33



def next_term_to_try_from(unsatisfied)
  unsatisfied.min_by do |package, range|
    matching_versions = @source.versions_for(package, range)
    higher_versions = @source.versions_for(package, range.upper_invert)

    [matching_versions.count <= 1 ? 0 : 1, higher_versions.count]
  end
end