demarches-normaliennes/app/services/uninterlace_service.rb
2024-10-24 18:48:27 +02:00

24 lines
569 B
Ruby

# frozen_string_literal: true
class UninterlaceService
def process(file)
uninterlace_png(file)
end
private
def uninterlace_png(uploaded_file)
if interlaced?(uploaded_file.to_path)
chunky_img = ChunkyPNG::Image.from_io(uploaded_file.to_io)
chunky_img.save(uploaded_file.to_path, interlace: false)
uploaded_file.reopen(uploaded_file.to_path, 'rb')
end
uploaded_file
end
def interlaced?(png_path)
return false if png_path.blank?
png = MiniMagick::Image.open(png_path)
png.data["interlace"] != "None"
end
end