Module: Shrine::Plugins::Blurhash

Defined in:
lib/shrine/plugins/blurhash.rb

Defined Under Namespace

Modules: ClassMethods, FileMethods, InstanceMethods Classes: PixelsExtractor

Constant Summary collapse

LOG_SUBSCRIBER = 
lambda do |event|
  Shrine.logger.info "Blurhash (#{event.duration}ms) – #{{
    io: event[:io].class,
    uploader: event[:uploader],
  }.inspect}"
end

Class Method Summary collapse

Class Method Details

.configure(uploader, log_subscriber: LOG_SUBSCRIBER, **opts) ⇒ Object 



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# File 'lib/shrine/plugins/blurhash.rb', line 15

def self.configure(uploader, log_subscriber: LOG_SUBSCRIBER, **opts)
  uploader.opts[:blurhash] ||= {
    extractor: :ruby_vips,
    on_error: :warn,
    auto_extraction: true,
    resize_to: 100,
    components: [4, 3],
  }
  uploader.opts[:blurhash].merge!(opts)

  # resolve error strategy
  uploader.opts[:blurhash][:on_error] =
    case uploader.opts[:blurhash][:on_error]
    when :fail   then ->(error) { raise error }
    when :warn   then ->(error) { Shrine.warn "Error occurred when attempting to extract blurhash: #{error.inspect}" }
    when :ignore then ->(error) {}
    else
      uploader.opts[:blurhash][:on_error]
    end

  uploader.subscribe(:blurhash, &log_subscriber) if uploader.respond_to?(:subscribe)
end