It's used to add configuration file under files path of .bumpedrc.

In the beginning, Bumped automatically detects common configuration files from the most popular packages managers, but you may need to add one manually.

For example, I want to add a new file called component.json that which version setted to 2.0.0:

  "version": "2.0.0"

I can be done using bumped add:

$ bumped add component.json

info    : Detected 'component.json' in the directory.
success	: 'component.json' has been added.

If you check now the .bumpedrc file, the list of configuration files has been updated:

  - package.json
  - component.json

If you type now bumped version, you can check that the shared version has changed:

$ bumped version

info	: Current version is '2.0.0'.

The version is set to 2.0.0 because it's the major version between all the configuration files.