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31 lines
868 B
31 lines
868 B
12 years ago
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class Cask::Download
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attr_reader :cask
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def initialize(cask)
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@cask = cask
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end
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def perform
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require 'formula_support'
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software_spec = SoftwareSpec.new(cask.url.to_s, cask.version)
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downloader = CurlDownloadStrategy.new(cask.title, software_spec)
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downloaded_path = downloader.fetch
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_check_sums(downloaded_path, cask.sums) unless cask.sums === 0
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downloaded_path
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end
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private
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def _check_sums(path, sums)
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has_sum = false
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sums.each do |sum|
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unless sum.empty?
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computed = Checksum.new(sum.hash_type, Digest.const_get(sum.hash_type.to_s.upcase).file(path).hexdigest)
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raise ChecksumMismatchError.new(sum, computed) unless sum == computed
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has_sum = true
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end
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end
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raise ChecksumMissingError.new("Checksum required. SHA1: '#{Digest::SHA1.file(path).hexdigest}'") unless has_sum
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end
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end
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