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Contents
# frozen_string_literal: true
module ActiveStorage
# This analyzer relies on the third-party {MiniMagick}[https://github.com/minimagick/minimagick] gem. MiniMagick requires
# the {ImageMagick}[http://www.imagemagick.org] system library.
class Analyzer::ImageAnalyzer::ImageMagick < Analyzer::ImageAnalyzer
def self.accept?(blob)
super && ActiveStorage.variant_processor == :mini_magick
end
private
def read_image
download_blob_to_tempfile do |file|
require "mini_magick"
image = instrument("mini_magick") do
MiniMagick::Image.new(file.path)
end
if image.valid?
yield image
else
logger.info "Skipping image analysis because ImageMagick doesn't support the file"
{}
end
end
rescue LoadError
logger.info "Skipping image analysis because the mini_magick gem isn't installed"
{}
rescue MiniMagick::Error => error
logger.error "Skipping image analysis due to an ImageMagick error: #{error.message}"
{}
end
def rotated_image?(image)
%w[ RightTop LeftBottom TopRight BottomLeft ].include?(image["%[orientation]"])
end
end
end
Version data entries
18 entries across 16 versions & 2 rubygems