Fix logging outside the request/response cycle

fixes cases where the `rage_logger` variable is empty, e.g. `Rage.logger` is used in Sidekiq

lib/rage/logger/json_formatter.rb

@@ -7,7 +7,7 @@ def initialize
   end
 
   def call(severity, timestamp, _, message)
-    logger = Thread.current[:rage_logger]
+    logger = Thread.current[:rage_logger] || { tags: [], context: {} }
     tags, context = logger[:tags], logger[:context]
 
     if !context.empty?
@@ -29,6 +29,8 @@ def call(severity, timestamp, _, message)
       tags_msg = "{\"tags\":[\"#{tags[0]}\"],\"timestamp\":\"#{timestamp}\",\"pid\":\"#{@pid}\",\"level\":\"#{severity}\""
     elsif tags.length == 2
       tags_msg = "{\"tags\":[\"#{tags[0]}\",\"#{tags[1]}\"],\"timestamp\":\"#{timestamp}\",\"pid\":\"#{@pid}\",\"level\":\"#{severity}\""
+    elsif tags.length == 0
+      tags_msg = "{\"tags\":[],\"timestamp\":\"#{timestamp}\",\"pid\":\"#{@pid}\",\"level\":\"#{severity}\""
     else
       tags_msg = "{\"tags\":[\"#{tags[0]}\",\"#{tags[1]}\""
       i = 2

lib/rage/logger/logger.rb

@@ -83,7 +83,7 @@ def formatter=(formatter)
   #     Rage.logger.info "cache miss"
   #   end
   def with_context(context)
-    old_context = Thread.current[:rage_logger][:context]
+    old_context = (Thread.current[:rage_logger] ||= { tags: [], context: {} })[:context]
 
     if old_context.empty? # there's nothing in the context yet
       Thread.current[:rage_logger][:context] = context
@@ -104,7 +104,7 @@ def with_context(context)
   #     Rage.logger.info "success"
   #   end
   def tagged(tag)
-    Thread.current[:rage_logger][:tags] << tag
+    (Thread.current[:rage_logger] ||= { tags: [], context: {} })[:tags] << tag
     yield(self)
   ensure
     Thread.current[:rage_logger][:tags].pop
@@ -115,8 +115,6 @@ def tagged(tag)
   private
 
   def define_log_methods
-    console_mode = Rage.config.internal.rails_mode ? Rage.config.internal.rails_console : defined?(IRB)
-
     methods = METHODS_MAP.map do |level_name, level_val|
       if @logdev.nil? || level_val < @level
         # logging is disabled or the log level is higher than the current one
@@ -125,7 +123,7 @@ def #{level_name}(msg = nil)
             false
           end
         RUBY
-      elsif console_mode
+      elsif Rage.config.internal.rails_mode ? Rage.config.internal.rails_console : defined?(IRB)
         # the call was made from the console - don't use the formatter
         <<-RUBY
           def #{level_name}(msg = nil)
@@ -157,17 +155,5 @@ def #{level_name}(msg = nil)
     end
 
     self.class.class_eval(methods.join("\n"))
-
-    if console_mode
-      self.class.class_eval <<-RUBY
-        def with_context(_)
-          yield(self)
-        end
-
-        def tagged(_)
-          yield(self)
-        end
-      RUBY
-    end
   end
 end

lib/rage/logger/text_formatter.rb

@@ -7,7 +7,7 @@ def initialize
   end
 
   def call(severity, timestamp, _, message)
-    logger = Thread.current[:rage_logger]
+    logger = Thread.current[:rage_logger] || { tags: [], context: {} }
     tags, context = logger[:tags], logger[:context]
 
     if !context.empty?
@@ -29,6 +29,8 @@ def call(severity, timestamp, _, message)
       tags_msg = "[#{tags[0]}] timestamp=#{timestamp} pid=#{@pid} level=#{severity}"
     elsif tags.length == 2
       tags_msg = "[#{tags[0]}][#{tags[1]}] timestamp=#{timestamp} pid=#{@pid} level=#{severity}"
+    elsif tags.length == 0
+      tags_msg = "timestamp=#{timestamp} pid=#{@pid} level=#{severity}"
     else
       tags_msg = "[#{tags[0]}][#{tags[1]}]"
       i = 2