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33 lines
1 KiB
Ruby
33 lines
1 KiB
Ruby
# frozen_string_literal: true
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module Paperclip
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class CustomFilePreview < Processor
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def make
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libreoffice_path = ENV['LIBREOFFICE_PATH'] || 'soffice'
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directory = File.dirname(@file.path)
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basename = File.basename(@file.path, '.*')
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original_preview_file = File.join(directory, "#{basename}.png")
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dst = TempfileFactory.new.generate("#{basename}.#{options[:format]}")
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begin
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Paperclip.run(
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libreoffice_path,
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"--headless --invisible --convert-to png --outdir #{directory} #{@file.path}"
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)
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convert(
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":source -resize '#{options[:geometry]}' -format #{options[:format]} #{options[:convert_options]} :dest",
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source: File.expand_path(original_preview_file),
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dest: File.expand_path(dst.path)
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)
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ensure
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File.delete(original_preview_file) if File.file?(original_preview_file)
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end
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dst
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rescue StandardError => e
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raise Paperclip::Error, "There was an error generating document preview - #{e}"
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end
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end
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end
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