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require "tmpdir"
module Hbc
class Container
class Xip < Base
def self.me?(criteria)
criteria.magic_number(/^xar!/n) &&
IO.popen(["/usr/bin/xar", "-t", "-f", criteria.path.to_s], err: "/dev/null") { |io| io.read =~ /\AContent\nMetadata\n\Z/ }
end
def extract
Dir.mktmpdir do |unpack_dir|
begin
ohai "Verifying signature for #{@path.basename}"
@command.run!("/usr/sbin/pkgutil", args: ["--check-signature", @path])
rescue
raise "Signature check failed."
end
@command.run!("/usr/bin/xar", args: ["-x", "-f", @path, "Content", "-C", unpack_dir])
Dir.chdir(@cask.staged_path) do
@command.run!("/usr/bin/cpio", args: ["--quiet", "-i", "-I", Pathname(unpack_dir).join("Content")])
end
end
end
end
end
end
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