Symlink current added for backups

mysync

@@ -3,6 +3,7 @@
 #
 
 import config
+import errno
 import os
 import sys
 import time
@@ -139,5 +140,16 @@ if __name__ == '__main__':
                 sys.stdout.write('\n' + 80 * '-' + '\n')
     if did_nothing:
         help_msg()
+    elif config.backup:
+        src = os.path.join(basepath, timestamp)
+        dst = os.path.join(basepath, 'current')
+        try:
+            os.symlink(src, dst)
+        except OSError as e:
+            if e.errno == errno.EEXIST:
+                os.remove(dst)
+                os.symlink(src, dst)
+            else:
+                raise e
 else:
     help_msg()