Class: Peaberry::DotJs

Inherits:
Object
  • Object
show all
Defined in:
lib/peaberry/dot_js.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ DotJs

Returns a new instance of DotJs.



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# File 'lib/peaberry/dot_js.rb', line 10

def initialize
  @sprockets = Sprockets::Environment.new
  dot_js_dir = File.expand_path('~/.js')
  @sprockets.append_path(dot_js_dir)
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/peaberry/dot_js.rb', line 16

def call(env)
  headers = Rack::Utils::HeaderHash.new
  request = Rack::Request.new(env)

  path = request.path_info
  files = []
  files << @sprockets.find_asset('default.js')
  files << @sprockets.find_asset(path.sub(/^\//, ''))

  body = "// dotjs is working! //\n" + files.compact.map(&:to_s).join

  headers['Content-Length'] = body.bytesize.to_s
  headers['Content-Type'] = 'text/javascript'
  origin = env['HTTP_ORIGIN'].to_s.split(/;\s+/)
  search = path.gsub('/','').gsub(/\.js$/,'') + '$'
  if origin && origin.length == 1 && path.length != 1 && origin[0].match(search)
    headers['Access-Control-Allow-Origin'] = origin[0]
  end

  [ Rack::Utils.status_code(:ok), headers, body.lines ]
rescue ExecJS::ProgramError => e # CoffeeScript->JavaScript
  @sprockets.send(:expire_index!)
  raise e.class, e.message.sub(%r<^(\s+\(in) .*/(\.js/)>) { "#$1 #$2" }
end