Compute the Whoosh index path setting dynamically.
Review Request #10529 — Created April 12, 2019 and updated
Whoosh had a default setting for its index directory that was computed
at module initialization time. In unit tests, this resulted in the local
directory being used and not the directory set up for unit test state.
The Whoosh settings are now computed dynamically in order to take that
setting into account. On top of this, we also now override the path
settings.py(as part of the default Haystack
configuration, which is required) to also use the temporary storage
Unit tests pass on Django 1.6 and 1.11.
Verified that a
search-indexdirectory was no longer being created
in the source directory.