35 lines
1.1 KiB
Ruby
35 lines
1.1 KiB
Ruby
require 'formula'
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# `brew uses foo bar` returns formulae that use both foo and bar
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# If you want the union, run the command twice and concatenate the results.
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# The intersection is harder to achieve with shell tools.
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module Homebrew
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def uses
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raise FormulaUnspecifiedError if ARGV.named.empty?
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used_formulae = ARGV.formulae
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formulae = (ARGV.include? "--installed") ? Formula.installed : Formula
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recursive = ARGV.flag? "--recursive"
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uses = formulae.select do |f|
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used_formulae.all? do |ff|
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begin
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if recursive
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f.recursive_dependencies.any? { |dep| dep.to_formula.name == ff.name } ||
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f.recursive_requirements.any? { |req| req.name == ff.name }
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else
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f.deps.any? { |dep| dep.to_formula.name == ff.name } ||
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f.requirements.any? { |req| req.name == ff.name }
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end
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rescue FormulaUnavailableError => e
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# Silently ignore this case as we don't care about things used in
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# taps that aren't currently tapped.
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end
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end
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end
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puts_columns uses.map(&:name)
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end
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end
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