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#: * `leaves`:
#: Show installed formulae that are not dependencies of another installed formula.
require "formula"
require "tab"
require "set"
module Homebrew
module_function
def leaves
installed = Formula.installed
deps_of_installed = Set.new
installed.each do |f|
deps = []
f.deps.each do |dep|
if dep.optional? || dep.recommended?
deps << dep.to_formula.full_name if f.build.with?(dep)
else
deps << dep.to_formula.full_name
end
end
deps_of_installed.merge(deps)
end
installed.each do |f|
puts f.full_name unless deps_of_installed.include? f.full_name
end
end
end
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