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Ruby
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2016-08-18 22:11:42 +03:00
require "tmpdir"
require "hbc/container/base"
class Hbc::Container::Tar < Hbc::Container::Base
def self.me?(criteria)
criteria.magic_number(%r{^.{257}ustar}n) ||
# or compressed tar (bzip2/gzip/lzma/xz)
IO.popen(["/usr/bin/tar", "-t", "-f", criteria.path.to_s], err: "/dev/null") { |io| !io.read(1).nil? }
end
def extract
Dir.mktmpdir do |unpack_dir|
@command.run!("/usr/bin/tar", args: ["-x", "-f", @path, "-C", unpack_dir])
@command.run!("/usr/bin/ditto", args: ["--", unpack_dir, @cask.staged_path])
end
end
end