Support for Environment Variables about fastlane-action

[maierj]

Passing environment variables is supported by default by all GitHub actions. The way you are passing the MATCH_PASSWORD to the fastlane action is correct.

In fastlane, the environment variable MATCH_PASSWORD is used to decrypt the files from your certificates repository (see https://docs.fastlane.tools/actions/match/#passphrase). As i saw from your build logs, this step is successful: https://github.com/AppleEducate/flutter_piano/commit/a19f34fd984b151994e265e06f88a533e0a0b9d7/checks?check_suite_id=260492780#step:8:98 . The seems like the step after the decryption is failing, but the reason for that has to be something else.

FYI, you can check out the test project I have set up for this action: https://github.com/maierj/fastlane-action-test. There if have a fastlane lane that prints all environment variables. You can see in the logs that the environment variables that are specified in the workflow are also listed there.

[rodydavis]

@maierj please let me know if you need more info.