This is a simple helm plugin that will take the dependent repos for a chart and set them up and then call the dependency build to download the charts from the repos.
To use this software you need to have yq installed at version >=4.0
Just run the command below to install
helm plugin install https://github.com/codayblue/helm-build
While in the same directory as the helm chart run the following command
helm build
or you can point at a chart you want to build on the local system like so
helm build /path/to/chart