Filesystem vars & access refactoring

Description

  • I don't want xblock initialization to do file system calls unless they really need to.

  • I don't want modulestores to have fs_root unless they really need to.

  • I don't want runtimes to have export_fs unless they really need to. I don't want code setting export_fs unless it really has authority to do so (e.g., only export code should set it I believe).

  • We should check whether we really need resource_fs where we have it

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Reporter

dmitchellR

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