diff options
Diffstat (limited to 'lib/paperclip/image_extractor.rb')
-rw-r--r-- | lib/paperclip/image_extractor.rb | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/lib/paperclip/image_extractor.rb b/lib/paperclip/image_extractor.rb new file mode 100644 index 000000000..114852e8b --- /dev/null +++ b/lib/paperclip/image_extractor.rb @@ -0,0 +1,49 @@ +# frozen_string_literal: true + +require 'mime/types/columnar' + +module Paperclip + class ImageExtractor < Paperclip::Processor + IMAGE_EXTRACTION_OPTIONS = { + convert_options: { + output: { + 'loglevel' => 'fatal', + vf: 'scale=\'min(400\, iw):min(400\, ih)\':force_original_aspect_ratio=decrease', + }.freeze, + }.freeze, + format: 'png', + time: -1, + file_geometry_parser: FastGeometryParser, + }.freeze + + def make + return @file unless options[:style] == :original + + image = begin + begin + Paperclip::Transcoder.make(file, IMAGE_EXTRACTION_OPTIONS.dup, attachment) + rescue Paperclip::Error, ::Av::CommandError + nil + end + end + + unless image.nil? + begin + attachment.instance.thumbnail = image if image.size.positive? + ensure + # Paperclip does not automatically delete the source file of + # a new attachment while working on copies of it, so we need + # to make sure it's cleaned up + + begin + FileUtils.rm(image) + rescue Errno::ENOENT + nil + end + end + end + + @file + end + end +end |