Fastlane/Fastfile

• https://docs.fastlane.tools/advanced/Fastfile/

fastlane/Fastfile 

lane :my_lane do
  # Whatever actions you like go in here.
end

 lane :MyStagingLane do
   app_identifier = 'com.your_app.staging'
   build(app_identifier: app_identifier)
   build_no = ENV['STORE_BUILD_NUMBER'].to_i

   supply(
     package_name: your_app_identifier,
     track: 'internal',
     json_key: './secrets/secrets/fastlane-supply-cert-key.json',
     skip_upload_metadata: true,
     skip_upload_images: true,
     skip_upload_screenshots: true
   )

   supply(
     package_name: your_app_identifier,
     track: 'internal',
     track_promote_to: 'alpha',
     json_key: './secrets/secrets/fastlane-supply-cert.json',
     skip_upload_metadata: true,
     skip_upload_images: true,
     skip_upload_screenshots: true
   )
 end

See also

• fastlane [ lanes | list | env | match ], Fastfile fastlane --help