npm i -g @cfn2/package

#
# Package and upload local artifacts.
#
$ cfn-package --template-file path/to/template \
              --output-template-file path/to/output \
              --s3-bucket bucket-name \
              --s3-prefix prefix

#
# Package and deploy.
#
$ cfn-package --template-file path/to/template \
              --s3-bucket bucket-name \
              --s3-prefix prefix \
              --deploy \
              --stack-name MyStack \
              --capabilities CAPABILITY_AUTO_EXPAND,CAPABILITY_IAM

#
# Update functions directly in a existing stack of the CloudFormation.
# In this case, Both --update-functions and --stack-name must be specified.
#
$ cfn-package --template-file path/to/template \
              --s3-bucket bucket-name \
              --s3-prefix prefix \
              --update-functions --stack-name MyStack