Class: Gem::AvailableSet

Inherits:
Object
  • Object
show all
Defined in:
lib/rubygems/available_set.rb

Defined Under Namespace

Classes: Tuple

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ AvailableSet

Returns a new instance of AvailableSet.



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# File 'lib/rubygems/available_set.rb', line 5

def initialize
  @set = []
  @sorted = nil
end

Instance Attribute Details

#set ⇒ Object (readonly)

Returns the value of attribute set



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# File 'lib/rubygems/available_set.rb', line 10

def set
  @set
end

Instance Method Details

#<<(o) ⇒ Object 



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# File 'lib/rubygems/available_set.rb', line 18

def <<(o)
  case o
  when AvailableSet
    s = o.set
  when Array
    s = o.map do |sp,so|
      if !sp.kind_of?(Specification) or !so.kind_of?(Source)
        raise TypeError, "Array must be in [[spec, source], ...] form"
      end

      Tuple.new(sp,so)
    end
  else
    raise TypeError, "Must be an AvailableSet"
  end

  @set += s
  @sorted = nil

  self
end

#add(spec, source) ⇒ Object 



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# File 'lib/rubygems/available_set.rb', line 12

def add(spec, source)
  @set << Tuple.new(spec, source)
  @sorted = nil
  self
end

#all_specs ⇒ Object 



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# File 'lib/rubygems/available_set.rb', line 44

def all_specs
  @set.map { |t| t.spec }
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rubygems/available_set.rb', line 40

def empty?
  @set.empty?
end

#inject_into_list(dep_list) ⇒ Object 



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# File 'lib/rubygems/available_set.rb', line 91

def inject_into_list(dep_list)
  @set.each { |t| dep_list.add t.spec }
end

#match_platform! ⇒ Object 



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# File 'lib/rubygems/available_set.rb', line 48

def match_platform!
  @set.reject! { |t| !Gem::Platform.match(t.spec.platform) }
  @sorted = nil
  self
end

#pick_best! ⇒ Object 



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# File 'lib/rubygems/available_set.rb', line 70

def pick_best!
  return self if empty?

  @set = [sorted.first]
  @sorted = nil
  self
end

#remove_installed!(dep) ⇒ Object 



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# File 'lib/rubygems/available_set.rb', line 78

def remove_installed!(dep)
  @set.reject! do |t|
    # already locally installed
    Gem::Specification.any? do |installed_spec|
      dep.name == installed_spec.name and
        dep.requirement.satisfied_by? installed_spec.version
    end
  end

  @sorted = nil
  self
end

#size ⇒ Object 



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# File 'lib/rubygems/available_set.rb', line 61

def size
  @set.size
end

#sorted ⇒ Object 



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# File 'lib/rubygems/available_set.rb', line 54

def sorted
  @sorted ||= @set.sort do |a,b|
    i = b.spec <=> a.spec
    i != 0 ? i : (a.source <=> b.source)
  end
end

#source_for(spec) ⇒ Object 



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# File 'lib/rubygems/available_set.rb', line 65

def source_for(spec)
  f = @set.find { |t| t.spec == spec }
  f.source
end