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require 'open3'
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class ImageInspector
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def get_size(image_path)
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o, e, t = Open3.capture3(%(identify -format "%[fx:w]x%[fx:h]" #{image_path}))
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if t.exitstatus != 0
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raise RuntimeError, "Couldn't inspect image #{image_path}:\n#{o}\n#{e}"
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end
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o.split('x').map(&:to_i)
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end
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end
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