#71 updating logic to determine archive creation

index.js

@@ -445,7 +445,7 @@ DailyRotateFile.prototype.open = function (callback) {
     callback(true);
     return this._createStream();
   }
-  this._archive = this.zippedArchive ? this._stream.path : false;
+
   //
   // Otherwise we have a valid (and ready) stream.
   //
@@ -519,13 +519,14 @@ DailyRotateFile.prototype._createStream = function () {
 
   (function checkFile(target) {
     var fullname = path.join(self.dirname, target);
-
     //
     // Creates the `WriteStream` and then flushes any
     // buffered messages.
     //
     function createAndFlush(size) {
       if (self._stream) {
+        self._archive = self.zippedArchive ? self._stream.path : false;
+
         self._stream.end();
         self._stream.destroySoon();
       }

test/simple.tests.js

@@ -686,6 +686,35 @@ describe('winston/transports/daily-rotate-file', function () {
       tk.reset();
     });
 
+    it('should compress logfile even if there is only one log message', function (done) {
+      var self = this;
+
+      transport.log('error', 'test message', {}, function (err) {
+        if (err) {
+          done(err);
+        }
+
+        var filesCreated = fs.readdirSync(rotationLogPath);
+        expect(filesCreated.length).to.eql(1);
+        expect(filesCreated).to.include(pattern.oldfile);
+        self.time = new Date(pattern.end);
+        tk.travel(self.time);
+        transport.log('error', '2nd test message', {}, function (err) {
+          if (err) {
+            done(err);
+          }
+
+          filesCreated = fs.readdirSync(rotationLogPath);
+          expect(filesCreated.length).to.eql(2);
+          expect(filesCreated).to.include(pattern.newfile);
+          expect(filesCreated).to.include(pattern.oldfile + '.gz');
+          transport.close();
+
+          done();
+        });
+      });
+    });
+
     it('should compress logfile without adding count to file extension if there are no files with the same name', function (done) {
       var self = this;