Class: Antoinette::CompileElm

Inherits:
Object
  • Object
show all
Defined in:
lib/antoinette/services/compile_elm.rb

Constant Summary collapse

ELM_PURE_FUNCS = 
%w[F2 F3 F4 F5 F6 F7 F8 F9 A2 A3 A4 A5 A6 A7 A8 A9].freeze

Instance Method Summary collapse

Constructor Details

#initialize(elm_path: "elm", environment: Rails.env.to_s) ⇒ CompileElm

Returns a new instance of CompileElm.



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# File 'lib/antoinette/services/compile_elm.rb', line 9

def initialize(elm_path: "elm", environment: Rails.env.to_s)
  @elm_path = elm_path
  @environment = environment
end

Instance Method Details

#compile(elm_app_names) ⇒ Object 



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# File 'lib/antoinette/services/compile_elm.rb', line 14

def compile(elm_app_names)
  elm_file_paths = elm_app_names.map { |name| "app/client/#{name}.elm" }
  output_file = "tmp/elm_compiled.js"
  optimize_flag = production? ? "--optimize" : ""

  command = "#{@elm_path} make #{optimize_flag} --output=#{output_file} #{elm_file_paths.join(" ")}".squeeze(" ")

  system(command)

  unless Process.last_status.success?
    raise "Elm compilation failed"
  end

  js = File.read(output_file)
  production? ? minify(js) : js
ensure
  File.delete(output_file) if output_file && File.exist?(output_file)
end