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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::Xz < Hbc::Container::Base
def self.me?(criteria)
criteria.magic_number(%r{^\xFD7zXZ\x00}n)
end
def extract
unxz = Hbc.homebrew_prefix.join("bin", "unxz")
unless unxz.exist?
raise Hbc::CaskError, "Expected to find unxz executable. Cask '#{@cask}' must add: depends_on formula: 'xz'"
end
Dir.mktmpdir do |unpack_dir|
@command.run!("/usr/bin/ditto", args: ["--", @path, unpack_dir])
@command.run!(unxz, args: ["-q", "--", Pathname(unpack_dir).join(@path.basename)])
@command.run!("/usr/bin/ditto", args: ["--", unpack_dir, @cask.staged_path])
end
end
end