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67 lines
2.1 KiB
67 lines
2.1 KiB
# frozen_string_literal: true
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module Paperclip
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module AttachmentExtensions
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def meta
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instance_read(:meta)
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end
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# We overwrite this method to support delayed processing in
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# Sidekiq. Since we process the original file to reduce disk
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# usage, and we still want to generate thumbnails straight
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# away, it's the only style we need to exclude
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def process_style?(style_name, style_args)
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if style_name == :original && instance.respond_to?(:delay_processing_for_attachment?) && instance.delay_processing_for_attachment?(name)
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false
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else
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style_args.empty? || style_args.include?(style_name)
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end
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end
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def storage_schema_version
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instance_read(:storage_schema_version) || 0
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end
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def assign_attributes
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super
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instance_write(:storage_schema_version, 1)
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end
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def variant?(other_filename)
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return true if original_filename == other_filename
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return false if original_filename.nil?
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formats = styles.values.filter_map(&:format)
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return false if formats.empty?
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other_extension = File.extname(other_filename)
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formats.include?(other_extension.delete('.')) && File.basename(other_filename, other_extension) == File.basename(original_filename, File.extname(original_filename))
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end
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def default_url(style_name = default_style)
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@url_generator.for_as_default(style_name)
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end
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STOPLIGHT_THRESHOLD = 10
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STOPLIGHT_COOLDOWN = 30
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# We overwrite this method to put a circuit breaker around
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# calls to object storage, to stop hitting APIs that are slow
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# to respond or don't respond at all and as such minimize the
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# impact of object storage outages on application throughput
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def save
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Stoplight('object-storage') { super }.with_threshold(STOPLIGHT_THRESHOLD).with_cool_off_time(STOPLIGHT_COOLDOWN).with_error_handler do |error, handle|
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if error.is_a?(Seahorse::Client::NetworkingError)
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handle.call(error)
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else
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raise error
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end
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end.run
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end
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end
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end
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Paperclip::Attachment.prepend(Paperclip::AttachmentExtensions)
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