29 lines
700 B
Ruby
29 lines
700 B
Ruby
# frozen_string_literal: true
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module Compression
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class Engine
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UnsupportedFileExtension = Class.new(StandardError)
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def self.default_strategies
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[
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Compression::Zip.new,
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Compression::Pipeline.new([Compression::Tar.new, Compression::Gzip.new]),
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Compression::Gzip.new,
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Compression::Tar.new,
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]
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end
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def self.engine_for(filename, strategies: default_strategies)
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strategy =
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strategies.detect(-> { raise UnsupportedFileExtension }) { |e| e.can_handle?(filename) }
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new(strategy)
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end
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def initialize(strategy)
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@strategy = strategy
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end
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delegate :extension, :decompress, :compress, to: :@strategy
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end
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end
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