38 lines
725 B
Ruby
38 lines
725 B
Ruby
require "formula"
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require "tab"
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require "cli_parser"
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module Homebrew
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module_function
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def leaves_args
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Homebrew::CLI::Parser.new do
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usage_banner <<~EOS
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`leaves`
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Show installed formulae that are not dependencies of another installed formula.
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EOS
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switch :debug
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end
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end
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def leaves
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leaves_args.parse
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installed = Formula.installed.sort
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deps_of_installed = installed.flat_map do |f|
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f.runtime_dependencies.map do |dep|
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begin
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dep.to_formula.full_name
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rescue FormulaUnavailableError
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dep.name
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end
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end
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end
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leaves = installed.map(&:full_name) - deps_of_installed
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leaves.each(&method(:puts))
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end
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end
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