class GlobalSetting def self.register(key, default) define_singleton_method(key) do provider.lookup(key, default) end end def self.load_defaults default_provider = FileProvider.from(File.expand_path('../../../config/discourse_defaults.conf', __FILE__)) default_provider.keys.concat(@provider.keys).uniq.each do |key| default = default_provider.lookup(key, nil) define_singleton_method(key) do provider.lookup(key, default) end end end def self.database_config hash = {"adapter" => "postgresql"} %w{pool timeout socket host port username password}.each do |s| if val = self.send("db_#{s}") hash[s] = val end end hostnames = [ hostname ] hostnames << backup_hostname if backup_hostname.present? hash["host_names"] = hostnames hash["database"] = db_name hash["prepared_statements"] = !!self.db_prepared_statements {"production" => hash} end def self.redis_config @config ||= begin c = {} c[:host] = redis_host if redis_host c[:port] = redis_port if redis_port c[:password] = redis_password if redis_password.present? c[:db] = redis_db if redis_db != 0 c[:db] = 1 if Rails.env == "test" if redis_sentinels.present? c[:sentinels] = redis_sentinels.split(",").map do |address| host,port = address.split(":") {host: host, port: port} end.to_a end c.freeze end end class BaseProvider def self.coerce(setting) return setting == "true" if setting == "true" || setting == "false" return $1.to_i if setting.to_s.strip =~ /^([0-9]+)$/ setting end def resolve(current, default) BaseProvider.coerce( if current.present? current else default.present? ? default : nil end ) end end class FileProvider < BaseProvider attr_reader :data def self.from(file) if File.exists?(file) parse(file) end end def initialize(file) @file = file @data = {} end def read ERB.new(File.read(@file)).result().split("\n").each do |line| if line =~ /^\s*([a-z_]+[a-z0-9_]*)\s*=\s*(\"([^\"]*)\"|\'([^\']*)\'|[^#]*)/ @data[$1.strip.to_sym] = ($4 || $3 || $2).strip end end end def lookup(key,default) var = @data[key] resolve(var, var.nil? ? default : "") end def keys @data.keys end def self.parse(file) provider = self.new(file) provider.read provider end private_class_method :parse end class EnvProvider < BaseProvider def lookup(key, default) var = ENV["DISCOURSE_" << key.to_s.upcase] resolve(var , var.nil? ? default : nil) end def keys ENV.keys.select{|k| k =~ /^DISCOURSE_/}.map{|k| k[10..-1].downcase.to_sym} end end class BlankProvider < BaseProvider def lookup(key, default) default end def keys [] end end class << self attr_accessor :provider end if Rails.env == "test" @provider = BlankProvider.new else @provider = FileProvider.from(File.expand_path('../../../config/discourse.conf', __FILE__)) || EnvProvider.new end load_defaults end