Sha256: 4ba0bd9f8cea6344845ba47c98c9f6436fef4ac8161f0243420ba6283ae5649f

Contents?: true

Size: 1.3 KB

Versions: 15

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Stored size: 1.3 KB

Contents

require 'image_optim/worker'

class ImageOptim
  class Worker
    # http://pmt.sourceforge.net/pngcrush/
    class Pngcrush < Worker
      CHUNKS_OPTION =
      option(:chunks, :alla, Array, 'List of chunks to remove or '\
          '`:alla` - all except tRNS/transparency or '\
          '`:allb` - all except tRNS and gAMA/gamma') do |v|
        Array(v).map(&:to_s)
      end

      FIX_OPTION =
      option(:fix, false, 'Fix otherwise fatal conditions '\
          'such as bad CRCs'){ |v| !!v }

      BRUTE_OPTION =
      option(:brute, false, 'Brute force try all methods, '\
          'very time-consuming and generally not worthwhile'){ |v| !!v }

      BLACKEN_OPTION =
      option(:blacken, true, 'Blacken fully transparent pixels'){ |v| !!v }

      def run_order
        -6
      end

      def optimize(src, dst)
        flags = %w[
          -reduce
          -cc
          -q
        ]
        chunks.each do |chunk|
          flags.push '-rem', chunk
        end
        flags.push '-fix' if fix
        flags.push '-brute' if brute
        if resolve_bin!(:pngcrush).version >= '1.7.38'
          flags.push '-blacken' if blacken
        end

        args = flags + %W[
          --
          #{src}
          #{dst}
        ]

        execute(:pngcrush, *args) && optimized?(src, dst)
      end
    end
  end
end

Version data entries

15 entries across 15 versions & 3 rubygems

Version Path
image_optim-0.26.3 lib/image_optim/worker/pngcrush.rb
image_optim-0.26.2 lib/image_optim/worker/pngcrush.rb
discourse_image_optim-0.26.2 lib/image_optim/worker/pngcrush.rb
image_optim-0.26.1 lib/image_optim/worker/pngcrush.rb
image_optim-0.26.0 lib/image_optim/worker/pngcrush.rb
image_optim-0.25.0 lib/image_optim/worker/pngcrush.rb
image_optim-0.24.3 lib/image_optim/worker/pngcrush.rb
image_optim-0.24.2 lib/image_optim/worker/pngcrush.rb
image_optim-0.24.1 lib/image_optim/worker/pngcrush.rb
image_optim-0.24.0 lib/image_optim/worker/pngcrush.rb
image_optim-0.23.0 lib/image_optim/worker/pngcrush.rb
image_optim-0.22.1 lib/image_optim/worker/pngcrush.rb
image_optim-0.22.0 lib/image_optim/worker/pngcrush.rb
openstreetmap-image_optim-0.21.0.1 lib/image_optim/worker/pngcrush.rb
image_optim-0.21.0 lib/image_optim/worker/pngcrush.rb