30 lines
567 B
Ruby
30 lines
567 B
Ruby
require 'formula'
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require 'tab'
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require 'set'
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module Homebrew
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def leaves
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installed = Formula.installed
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deps_of_installed = Set.new
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installed.each do |f|
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deps = []
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tab = Tab.for_formula(f)
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f.deps.each do |dep|
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if dep.optional? || dep.recommended?
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deps << dep.to_formula.name if tab.with?(dep)
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else
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deps << dep.to_formula.name
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end
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end
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deps_of_installed.merge(deps)
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end
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installed.each do |f|
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puts f.name unless deps_of_installed.include? f.name
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end
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end
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end
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