Behaviour for creating ExOptimizer optimizers.

The current list of optimizers bundled with ExOptimizer are the following:

• JPEG files
  • ExOptimizer.Optimizers.JpegOptim
• PNG files
  • ExOptimizer.Optimizers.PngQuant
  • ExOptimizer.Optimizers.Optipng
• SVG files
  • ExOptimizer.Optimizers.Svgo
• GIF files
  • ExOptimizer.Optimizers.Gifsicle
• WebP files
  • ExOptimizer.Optimizers.Cwebp

Example

defmodule ExOptimizer.Optimizers.Custom do
  @behaviour ExOptimizer.Optimizer

  def binary_name(), do: "some_command"

  def can_handle(%Image{path: path, ext: ext, mime: mime} = _image), do: mime == "image/something"

  def extra_args(%Image{path: path} = _image), do: ["-o #{path}"]

  def options(), do: ["--force", "--produce 'best'"]
end