After cloning the project, you can build it from source with this command:
mvn clean package
To install, run brew install swagger-codegen
Here is an example usage:
swagger-codegen generate -i http://petstore.swagger.io/v2/swagger.json -l ruby -o /tmp/test/
Please refer to wiki for more information.
This will create the Swagger Codegen library from source.
mvn package
The templates are included in the library generated. If you want to modify the templates, you'll need to either repackage the library OR specify a path to your scripts.