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require "formula"
require "cmd/outdated"
def installed_brews
formulae = []
HOMEBREW_CELLAR.subdirs.each do |rack|
f = Formula.factory rack.basename.to_s rescue nil
formulae << f if f and f.installed?
end
formulae
end
def main
return unless HOMEBREW_CELLAR.exist?
# Names of outdated brews; they count as installed.
outdated = Homebrew.outdated_brews.collect{ |b| b.name }
formulae_to_check = if ARGV.named.empty?
installed_brews
else
ARGV.formulae
end
formulae_to_check.each do |f|
missing_deps = f.recursive_deps.map{ |g| g.name }.uniq.reject do |dep_name|
Formula.factory(dep_name).installed? or outdated.include?(dep_name)
end
unless missing_deps.empty?
print "#{f.name}: " if formulae_to_check.size > 1
puts "#{missing_deps * ' '}"
end
end
end
main()
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