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require 'fileutils'
require 'rubygems'
require 'rubygems/package'
# This library is used by "make extract-gems" to
# unpack bundled gem files.
def Gem.unpack(file, dir = nil, spec_dir = nil)
pkg = Gem::Package.new(file)
spec = pkg.spec
target = spec.full_name
target = File.join(dir, target) if dir
pkg.extract_files target
if spec.extensions.empty?
spec_dir ||= target
else
spec_dir = target
end
FileUtils.mkdir_p(spec_dir)
File.binwrite(File.join(spec_dir, "#{spec.name}-#{spec.version}.gemspec"), spec.to_ruby)
unless spec.extensions.empty?
spec.dependencies.clear
File.binwrite(File.join(spec_dir, ".bundled.#{spec.name}-#{spec.version}.gemspec"), spec.to_ruby)
end
puts "Unpacked #{file}"
end
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