[api] Allow options.timestamp to be a custom function. Fixes winsto…

…njs#23
apiaryio · Jul 24, 2011 · 87e3c68 · 87e3c68
1 parent 90190c1
commit 87e3c68
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/lib/winston/internal.js b/lib/winston/internal.js
@@ -81,7 +81,8 @@ var clone = exports.clone = function (obj) {
 //   Generic logging function for returning timestamped strings
 //
 var log = exports.log = function (level, msg, meta, options) {
-  var output      = options.timestamp ? timestamp() + ' - ' : '';
+  var prefixfn    = typeof options.timestamp === 'function' ? options.timestamp : timestamp,
+      output      = options.timestamp ? prefixfn() + ' - ' : '',
       targetLevel = options.colorize ? config.colorize(level) : level,
       metac       = exports.clone(meta);