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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, ARGV.one?)
all_deps.sort! unless mode.topo_order?
puts all_deps
end
end
def deps_for_formula(f, recursive=false)
if recursive
deps = f.recursive_dependencies
reqs = f.recursive_requirements
else
deps = f.deps.default
reqs = f.requirements
end
deps.map(&:name) + reqs.to_a.map do |r|
":#{r.class.default_formula}" if r.default_formula?
end.compact
end
def deps_for_formulae(formulae, recursive=false)
formulae.map {|f| deps_for_formula(f, recursive) }.inject(&:&)
end
def puts_deps(formulae)
formulae.each { |f| puts "#{f.name}: #{deps_for_formula(f)*' '}" }
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.requirements.each do |requirement|
next unless requirement.default_formula?
puts "| "*(level-1)+"|- :"+requirement.class.default_formula.to_s
end
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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