Does folder/folders inside cache support env vars?

[abravalheri]

Hello, I was wondering if I can use an environment variable to pass the value of folder inside of a cache instruction. Something like the following:

env:
  TOOLXYZ_CACHE: ${HOME}/.cache/toolxyz

prepare_task:
  # ...
  test_files_cache:
    folder: ${TOOLXYZ_CACHE}
    populate_script: ./my_populate_script
    fingerprint_script: echo $CIRRUS_BUILD_ID
    reupload_on_changes: true
  # ...

Does anyone know if something like the above is supported? Or is there an alternative for that which keeps a single source of truth for the value of the environment variable. Also would the folder: ${ENV_VAR} syntax be supported independently of the OS used in the task?

[fkorotkov]

folder/folders values are evaluated at parsing time and environment variables passed via env are respected. Evaluation is also OS independent.

If you define TOOLXYZ_CACHE dynamically while task execution it won't work at the moment.