emit archive event after gzipping

Author: Matt Berther

README.md

@@ -51,7 +51,7 @@ The DailyRotateFile transport can rotate files by minute, hour, day, month, year
   logger.info('Hello World!');
 ```
 
-You can listen for the *rotate* custom event. The rotate event will pass two parameters to the callback (*oldFilename*, *newFilename*).
+You can listen for the *rotate* custom event. The rotate event will pass two parameters to the callback (*oldFilename*, *newFilename*). You can also listen for the *archive* custom event. The archive event will pass one parameter to the callback (*zipFilename*).
 
 ## LICENSE
 MIT

daily-rotate-file.js

@@ -107,6 +107,7 @@ var DailyRotateFile = function (options) {
                 var out = fs.createWriteStream(oldFile + '.gz');
                 inp.pipe(gzip).pipe(out).on('finish', function () {
                     fs.unlinkSync(oldFile);
+                    self.emit('archive', oldFile + '.gz');
                 });
             });
         }