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require 'formula'
def recursive_deps_tree f, level
f.deps.each do |dep|
puts "> "*level+dep.to_s
recursive_deps_tree(Formula.factory(dep), level+1)
end
end
module Homebrew extend self
def deps
if ARGV.include? '--all'
Formula.each do |f|
puts "#{f.name}: #{f.deps*' '}"
end
elsif ARGV.include? '--tree'
raise FormulaUnspecifiedError if ARGV.named.empty?
ARGV.formulae.each do |f|
puts f
recursive_deps_tree(f, 1)
puts
end
else
raise FormulaUnspecifiedError if ARGV.named.empty?
all_deps = ARGV.formulae.map do |f|
ARGV.one? ? f.deps : f.recursive_dependencies
end.intersection.map(&:name)
all_deps.sort! unless ARGV.include? "-n"
puts all_deps
end
end
end
class Array
def intersection
a = []
each{ |b| a |= b }
each{ |c| a &= c }
a
end
end
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