baseFS
Abstract FileSystem base: lifecycle, rooted POSIX paths, encoding, and portable fallbacks so a concrete backend only implements low-level I/O.
A new adapter typically overrides:
- onInit / onClose (optional)
- createRootDirectory when BaseFileSystemOptions.createRoot is set
- toBackendPath when the backend needs non-POSIX separators
- preparePath for post-resolve checks (e.g. symlink containment)
- the
*Atprimitives and isNotFoundError - optional
try*hooks for native append / copy / move