Begin work on LocalDiskStorageController in the `puterfs` extension.
This replaces LocalDiskStorageStrategy and LocalDiskStorageService from
the core. The `upload()` method is implemented to verify that it's
working.
This commit by itself will break other storage strategies. The next step
is to allow extensions to register storage controllers for puterfs. Part
of that work is done in this commit by emitting an event to register
storage controllers, but this commit does not include a way to
configure/select storage controllers.
The get_capabilities and update_thumbnail methods in PuterFSProvider are
moved to the extension by this commit. This is prerequisite to the
removal of PuterFSProvider in the core.
When ll_mkdir functionality was moved to PuterFSProvider, ACL and FSLock
concerns were erroneously moved into PuterFSProvider. The intended
design has ll_mkdir responsible for ACL and FSLock, and providers should
never be responsible for ACL.
An important note: it was noticed during this change that mkdir in
PuterFSProvider implements its own ACL check, instead of the ACL check
being performed in ll_mkdir. This means permissions won't be checked for
other implementors of mkdir! This needs to be fixed before custom
filesystem implementations can be considered production-ready.
This temporary proxy provider will allow methods of the puterfs
filesystem type to be moved to an extension incrementally instead of all
at once. See comment above the class for a more detailed explanation.
This extension has a copy of memoryfs which is exposed as `testfs`. The
purpose of this is to register a new filesystem type from an extension
to ensure it works as expected and to get feedback on a working example.
KernelDeimos