It is a source of confusion for users that `rclone mkdir` on a remote
which can't have empty directories such as s3/b2 does nothing.
This emits a warning at NOTICE level if the user tries to mkdir a
directory not at the root for a remote which can't have empty
directories.
See: https://forum.rclone.org/t/mkdir-on-b2-consider-adding-some-output/17689
- Change rclone/fs interfaces to accept context.Context
- Update interface implementations to use context.Context
- Change top level usage to propagate context to lover level functions
Context propagation is needed for stopping transfers and passing other
request-scoped values.
The purpose of this is to make it easier to maintain and eventually to
allow the rclone backends to be re-used in other projects without
having to use the rclone configuration system.
The new code layout is documented in CONTRIBUTING.
