picture.rb

# HELP!
#
# I’ve noticed that imagemagick is hogging a large part of the CPU when calling convert and identify, this in turn means I’m getting errors like this:
#
# Cannot allocate memory – identify -format “%wx%h” “/tmp/._imagename_01bc_030,17721,0.jpg”0 2>/dev/null /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/kernel/agnostics.rb:7:in ``’ /usr/lib/ruby/gems/1.8/gems/activesupport-2…
#
# That error is taken from delayed job.
#
# Is there any way I can stop imagemagick hogging so much cpu via paperclip or am I destined to grin and bare it?

class Picture < ActiveRecord::Base
  # Plugins
  acts_as_list :scope => :gallery
  has_attached_file :image, 
    # Amazon S3
    :storage => :s3,
    :bucket => 'images.example.com',
    :s3_host_alias => 'images.example.com',
    :s3_credentials => "#{Rails.root}/config/amazon_s3.yml",
    :s3_permissions => :public_read,
    :s3_headers => {
      'Cache-Control' => 'max-age=315360000',
      'Expires' => 10.years.from_now.httpdate,
    },
    
    # Paths
    :url => ':s3_alias_url',
    :path => ":gallery_id/:style-:id.jpg",
    
    # Styles
    :default_style => :large,
    :styles => { 
      :large => "640x>",
      :thumb => "125x125#",
      :small => "48x48#"
    },
    :convert_options => { :all => '-strip' }
  ]
end