prefer XDG_CACHE_HOME before os specific cache directories

[dsisnero]

I think the correct logic is to use XDG_CACHE_HOME if it is given and if not, use platform defaults

[kou]

Why?
I think that macOS and Windows don't follow XDG.

If we want to change cache directory for Red Datasets, we should introduce our environment variable such as RED_DATASETS_CACHE_DIR or something.

[dsisnero]

because, for windows, and, macos, if it is not set - normal mode, it will not be used. For windows, as an example, I have a work computer that doesn't have very much memory on the main hard drive so by setting this XDG_CACHE_HOME , I can have my config in the location I want. All my configs for every os are in the same location - under XDG_CACHE_HOME - can back this up easily on git So - if it is not set, it will follow normal conventions but if it is set - can override to a location the user wants.

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On Fri, Jan 13, 2023 at 1:04 AM Sutou Kouhei ***@***.***> wrote: Why? I think that macOS and Windows don't follow XDG. If we want to change cache directory for Red Datasets, we should introduce our environment variable such as RED_DATASETS_CACHE_DIR or something. — Reply to this email directly, view it on GitHub <#164 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAABQRMQJDYODPOPRBRYSLTWSED7LANCNFSM6AAAAAATZZX4JE> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[kou]

Do you know products that use XDG on Windows/macOS? If there are many products, we can follow it. Otherwise, we should introduce an environment variable only for us.