50 lines
2.0 KiB
Ruby

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