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require 'formula'
require 'ostruct'
module Homebrew extend self
def deps
mode = OpenStruct.new(
:installed? => ARGV.include?('--installed'),
:tree? => ARGV.include?('--tree'),
:all? => ARGV.include?('--all'),
:topo_order? => ARGV.include?('-n')
)
if mode.installed? && mode.tree?
puts_deps_tree Formula.installed
elsif mode.installed?
puts_deps Formula.installed
elsif mode.all?
puts_deps Formula
elsif mode.tree?
raise FormulaUnspecifiedError if ARGV.named.empty?
puts_deps_tree ARGV.formulae
else
raise FormulaUnspecifiedError if ARGV.named.empty?
all_deps = deps_for_formulae ARGV.formulae
all_deps.sort! unless mode.topo_order?
puts all_deps
end
end
def deps_for_formulae(formulae)
formulae.map do |f|
ARGV.one? ? f.deps.default : f.recursive_dependencies
end.inject(&:&).map(&:name)
end
def puts_deps(formulae)
formulae.each { |f| puts "#{f.name}: #{f.deps*' '}" }
end
def puts_deps_tree(formulae)
formulae.each do |f|
puts f.name
recursive_deps_tree(f, 1)
puts
end
end
def recursive_deps_tree f, level
f.deps.default.each do |dep|
puts "| "*(level-1)+"|- "+dep.to_s
recursive_deps_tree(Formula.factory(dep.to_s), level+1)
end
end
end
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