Class: Sprockets::Commoner::Processor

Inherits:
Schmooze::Base
  • Object
show all
Defined in:
lib/sprockets/commoner/processor.rb

Constant Summary collapse

ExcludedFileError = 
Class.new(::StandardError)
VERSION = 
'3'.freeze
BABELRC_FILE = 
'.babelrc'.freeze
PACKAGE_JSON = 
'package.json'.freeze
JS_PACKAGE_PATH = 
File.expand_path('../../../js', __dir__)
ALLOWED_EXTENSIONS = 
/\.js(?:on)?(?:\.erb)?\z/

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(root, include: [root], exclude: ['vendor/bundle'], babel_exclude: [/node_modules/], transform_options: []) ⇒ Processor

Returns a new instance of Processor.



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# File 'lib/sprockets/commoner/processor.rb', line 64

def initialize(root, include: [root], exclude: ['vendor/bundle'], babel_exclude: [/node_modules/], transform_options: [])
  @root = root
  @include = include.map {|path| expand_to_root(path, root) }
  @exclude = exclude.map {|path| expand_to_root(path, root) }
  @babel_exclude = babel_exclude.map {|path| expand_to_root(path, root) }
  @transform_options = transform_options.map {|(path, options)| [expand_to_root(path, root), options]}
  super(root, 'NODE_PATH' => JS_PACKAGE_PATH)
end

Instance Attribute Details

#babel_exclude ⇒ Object (readonly)

Returns the value of attribute babel_exclude.



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# File 'lib/sprockets/commoner/processor.rb', line 63

def babel_exclude
  @babel_exclude
end

#exclude ⇒ Object (readonly)

Returns the value of attribute exclude.



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# File 'lib/sprockets/commoner/processor.rb', line 63

def exclude
  @exclude
end

#include ⇒ Object (readonly)

Returns the value of attribute include.



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# File 'lib/sprockets/commoner/processor.rb', line 63

def include
  @include
end

#transform_options ⇒ Object (readonly)

Returns the value of attribute transform_options.



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# File 'lib/sprockets/commoner/processor.rb', line 63

def transform_options
  @transform_options
end

Class Method Details

.call(input) ⇒ Object 



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# File 'lib/sprockets/commoner/processor.rb', line 46

def self.call(input)
  instance(input[:environment]).call(input)
end

.configure(env, *args, **kwargs) ⇒ Object 



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# File 'lib/sprockets/commoner/processor.rb', line 58

def self.configure(env, *args, **kwargs)
  unregister(env)
  env.register_postprocessor('application/javascript', self.new(env.root, *args, **kwargs))
end

.instance(env) ⇒ Object 



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# File 'lib/sprockets/commoner/processor.rb', line 42

def self.instance(env)
  @instance ||= new(env.root)
end

.unregister(env) ⇒ Object 



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# File 'lib/sprockets/commoner/processor.rb', line 50

def self.unregister(env)
  env.postprocessors['application/javascript'].each do |processor|
    if processor == self || processor.is_a?(self)
      env.unregister_postprocessor('application/javascript', processor)
    end
  end
end

Instance Method Details

#cache_key ⇒ Object 



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# File 'lib/sprockets/commoner/processor.rb', line 73

def cache_key
  @cache_key ||= compute_cache_key
end

#call(input) ⇒ Object 



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# File 'lib/sprockets/commoner/processor.rb', line 77

def call(input)
  filename = input[:filename]

  return unless should_process?(filename)

  @env = input[:environment]
  @required = input[:metadata][:required].to_a
  insertion_index = @required.index(input[:uri]) || -1
  @dependencies = Set.new(input[:metadata][:dependencies])

  babel_config = babelrc_data(filename)
  result = transform(input[:data], options(input), commoner_options(input))

  commoner_required = Set.new(input[:metadata][:commoner_required])
  result['metadata']['targetsToProcess'].each do |t|
    unless should_process?(t)
      raise ExcludedFileError, "#{t} was imported from #{filename} but this file won't be processed by Sprockets::Commoner"
    end
    commoner_required.add(t)
  end

  result['metadata']['required'].each do |r|
    asset = resolve(r, accept: input[:content_type], pipeline: :self)
    @required.insert(insertion_index, asset)
  end

  result['metadata']['includedEnvironmentVariables'].each do |env|
    @dependencies << "commoner-environment-variable:#{env}"
  end

  map = process_map(input[:metadata][:map], result['map'], input)

  {
    data: result['code'],
    dependencies: @dependencies,
    required: Set.new(@required),
    map: map,

    commoner_global_identifier: result['metadata']['globalIdentifier'],
    commoner_required: commoner_required,
    commoner_used_helpers: Set.new(input[:metadata][:commoner_used_helpers]) + result['metadata']['usedHelpers'],
    commoner_enabled: input[:metadata][:commoner_enabled] | result['metadata']['commonerEnabled'],
  }
end