Function ensure_datasets_dir

pub fn ensure_datasets_dir(create: bool) -> Result<PathBuf, UtilError>

Makes sure that Brane’s dataset directory exists, and then returns its path.
Basically, tries to resolve the folder ~/.local/share/brane/data.

Arguments

• create: If set to true, creates the missing directories instead of throwing errors.

Returns

A PathBuf with the absolute path to the datasets directory that is also guaranteed to exist.

Errors

This function errors if we failed to get the Brane data directory (no confusion at all, lol) or the directory did not exist (if create is false) / was not accessible.