Make sure you have the latest version of the Xcode command line tools installed:
xcode-select --install
Install fastlane using
[sudo] gem install fastlane -NV
or alternatively using brew install fastlane
fastlane android beta
Upload to beta channel
fastlane android prod
Promote beta to production
fastlane android sync
Update current production description
fastlane android images
Generate images for all locales
This README.md is auto-generated and will be re-generated every time fastlane is run. More information about fastlane can be found on fastlane.tools. The documentation of fastlane can be found on docs.fastlane.tools.