37 lines
1.1 KiB
Ruby
37 lines
1.1 KiB
Ruby
# typed: strict
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# frozen_string_literal: true
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module UnpackStrategy
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# Strategy for unpacking zstd archives.
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class Zstd
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include UnpackStrategy
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sig { override.returns(T::Array[String]) }
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def self.extensions
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[".zst"]
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end
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sig { override.params(path: Pathname).returns(T::Boolean) }
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def self.can_extract?(path)
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path.magic_number.match?(/\x28\xB5\x2F\xFD/n)
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end
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sig { returns(T.nilable(T::Array[Formula])) }
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def dependencies
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@dependencies ||= T.let([Formula["zstd"]], T.nilable(T::Array[Formula]))
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end
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private
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sig { override.params(unpack_dir: Pathname, basename: Pathname, verbose: T::Boolean).void }
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def extract_to_dir(unpack_dir, basename:, verbose:)
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FileUtils.cp path, unpack_dir/basename, preserve: true
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quiet_flags = verbose ? [] : ["-q"]
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system_command! "unzstd",
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args: [*quiet_flags, "-T0", "--rm", "--", unpack_dir/basename],
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env: { "PATH" => PATH.new(Formula["zstd"].opt_bin, ENV.fetch("PATH")) },
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verbose:
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end
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end
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end
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