I upload my iOS app and most of the app metadata to iTunes Connect using fastlane deliver. Most of the data and screenshots can be put into files that I then have stored in git.
This includes for example the review notes that are stored in a file
fastlane/metadata/review_information/notes.txt
In iTunes Connect there is a bit of information in the TestFlight part under "Test Information" called "Beta App Description". I would like to also upload this text using fastlane.
In the fastlane deliver docs I have found the parameter called "beta_app_description" and as far as I can read, this is exactly that. This is a command parameter and as such muct be spefified directly in the Fastfile or Deliverfile.
I would like to have fastlane load this from a file just like all the other metadata.
Is this possible and how?
Besides deliver (or upload_ios_app) there is a testflight (or upload_to_testflight or pilot) action in fastlane:
https://docs.fastlane.tools/actions/testflight/
As the name suggests, it is used for everything Testflight, which includes the beta description:
beta_app_description | Provide the beta app description when uploading a new build
https://docs.fastlane.tools/actions/testflight/#parameters
pilot is also the name of a connected command line tool, that has additional options:
https://docs.fastlane.tools/actions/pilot/
Unfortunately, getting this data from a file is not part of any of those.