44 lines
1004 B
Ruby
44 lines
1004 B
Ruby
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require "digest"
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class Hbc::Verify::Checksum
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def self.me?(cask)
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return true unless cask.sha256 == :no_check
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ohai "No checksum defined for Cask #{cask}, skipping verification"
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false
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end
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attr_reader :cask, :downloaded_path
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def initialize(cask, downloaded_path)
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@cask = cask
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@downloaded_path = downloaded_path
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end
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def verify
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return unless self.class.me?(cask)
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ohai "Verifying checksum for Cask #{cask}"
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verify_checksum
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end
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private
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def expected
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@expected ||= cask.sha256
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end
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def computed
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@computed ||= Digest::SHA2.file(downloaded_path).hexdigest
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end
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def verify_checksum
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raise Hbc::CaskSha256MissingError, "sha256 required: sha256 '#{computed}'" if expected.nil? || expected.empty?
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if expected == computed
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odebug "SHA256 checksums match"
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else
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ohai 'Note: running "brew update" may fix sha256 checksum errors'
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raise Hbc::CaskSha256MismatchError.new(downloaded_path, expected, computed)
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end
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end
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end
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