pub fn load<P: Into<PathBuf>>(file: P)Expand description
Mounts the database at file as the active environment.
This is how a shipped BundleFormat::Sqlite
bundle is used in place: a bundle file carries the same schema as an
environment, so loading it makes its entries the ones every bound store
serves, with nothing copied. Stores reset on their next access, exactly as
with activate.
The file stays the environment until activate or set_root selects
a named one again. Writes (newly tuned keys, freshly compiled kernels) land
in it like in any environment; if its location is read-only, they degrade
to in-memory persistence as usual.