configuration.rb in landable-1.14.0

- old
+ new

@@ -1,7 +1,9 @@
+require 'figgy'
+
 module Landable
-  class Configuration
+  class Configuration < HashWithIndifferentAccess
     attr_accessor :api_url, :public_url, :amqp_configuration, :sitemap_host
     attr_writer :api_namespace, :public_namespace
     attr_writer :api_host, :public_host
     attr_writer :categories
     attr_writer :screenshots_enabled
@@ -11,10 +13,28 @@
     attr_writer :publicist_url, :audit_flags
     attr_writer :blank_user_agent_string, :untracked_paths
     attr_writer :dnt_enabled, :amqp_event_mapping, :amqp_site_segment
     attr_writer :amqp_service_enabled, :amqp_messaging_service
 
+    def initialize(config_path = nil)
+      begin
+        # let's keep this feature optional. Not all apps
+        # will be using external configs for landable
+        app_config = Figgy.build do |config_data|
+          config_data.root = config_path
+
+          config_data.define_overlay :default, nil
+          config_data.define_overlay(:environment) { Rails.env }
+        end
+
+        # map our new configs into our local object.
+        config_keys(config_path).each do |key|
+          self[key] = app_config[key] unless app_config[key].nil?
+        end
+      end unless config_path.nil?
+    end
+
     def amqp_configuration
       @amqp_configuration ||= {}
     end
 
     def authenticators
@@ -168,9 +188,46 @@
       attr_accessor :autorun
       attr_accessor :browserstack_username, :browserstack_password
 
       def initialize
         @autorun = true
+      end
+    end
+
+    private
+
+    DOTFILE_MATCHER_REGEXP = /^\.[[[:alnum:]]\.]*$/
+    EXPECTED_FILETYPES = ['yml', 'yaml', 'json']
+    EXPECTED_FILETYPES_REGEXP = /\.(#{ EXPECTED_FILETYPES.join('|') })\z/
+
+    def config_keys(base_path)
+      files = Dir.entries(base_path)
+      keys = []
+
+      files = remove_dotfiles(files)
+
+      files.each do |filename|
+        filename = File.join(base_path, filename)
+        new_key = filename_to_key(filename)
+
+        if File.file?(filename)
+          keys.push(new_key)
+        elsif File.directory?(filename) && new_key == Rails.env
+          # only folders matching our environment!
+          keys = keys.concat(config_keys(filename))
+        end
+      end
+
+      keys.uniq
+    end
+
+    def filename_to_key(filename)
+      File.basename(filename).sub(EXPECTED_FILETYPES_REGEXP, '')
+    end
+
+    def remove_dotfiles(filelist)
+      filelist.delete_if do |filename|
+        !DOTFILE_MATCHER_REGEXP.match(File.basename(filename)).nil?
       end
     end
   end
 end