1 files changed, 53 insertions, 0 deletions
diff --git a/lib/mixlib/log/logging.rb b/lib/mixlib/log/logging.rb
new file mode 100644
index 0000000..537e1de
--- /dev/null
+++ b/lib/mixlib/log/logging.rb
@@ -0,0 +1,53 @@
+#
+# Copyright:: Copyright (c) 2018 Chef Software, Inc.
+# License:: Apache License, Version 2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+require "logger"
+
+module Mixlib
+  module Log
+    module Logging
+      include ::Logger::Severity
+
+      TRACE = -1
+
+      SEV_LABEL = %w{TRACE DEBUG INFO WARN ERROR FATAL ANY}.each(&:freeze).freeze
+
+      def to_label(sev)
+        SEV_LABEL[sev + 1] || -"ANY"
+      end
+
+      LEVELS = { :trace => TRACE, :debug => DEBUG, :info => INFO, :warn => WARN, :error => ERROR, :fatal => FATAL }.freeze
+      LEVEL_NAMES = LEVELS.invert.freeze
+
+      attr_accessor :metadata
+
+      def pass(severity, args, progname = nil, data: {}, &block)
+        args, progname, data = yield if block_given?
+        add(severity, args, progname, data: data)
+      end
+
+      # Define the standard logger methods on this class programmatically.
+      # No need to incur method_missing overhead on every log call.
+      [:trace, :debug, :info, :warn, :error, :fatal].each do |method_name|
+        level = LEVELS[method_name]
+        define_method(method_name) do |msg = nil, data: {}, &block|
+          pass(level, msg, data: data, &block)
+        end
+      end
+
+    end
+  end
+end