lib/yog.rb in yog-0.3.0 vs lib/yog.rb in yog-0.4.0

@@ -3,10 +3,13 @@
 require "yog/logfmt"
 
 # Writes structured log lines.
 class Yog
 
+  # This context is included in every log line.
+  GLOBAL = {}
+
   # Get ready to do some yogging.
   def initialize(generator: Logfmt, output: $stdout, context: {})
     @context = context
     @generator = generator
     @output = output
@@ -35,11 +38,11 @@
     if block_given?
       result = yield
       prefix[:duration] = (Time.now - start) * 1000
     end
 
-    combined = prefix.merge(@context).merge(fields)
+    combined = prefix.merge(GLOBAL).merge(@context).merge(fields)
     @output.puts(@generator.generate(combined))
 
     result
   end
 
@@ -59,17 +62,17 @@
       context: @context.merge(fields),
       generator: @generator,
       output: @output
   end
 
-  ### Helpers for the default log
+  ### Static helpers
 
   # The log for Yog(), Yog.set(), and Yog.with().
   def self.default
     logs.first
   end
 
-  # A stack of receivers with the default log first.
+  # A stack of thread-local receivers, current log first.
   def self.logs
     Thread.current[:logs] ||= [new]
   end
 
   # Add fields to all Yog() calls in the given block.