Struct CopyBackend 

pub struct CopyBackend;

Trait Implementations

impl CloneBackend for CopyBackend

fn private_size(&self, path: &Path) -> Option<u64>

Nothing is shared, so every byte is private.

fn name(&self) -> &'static str

"apfs", "reflink", "zfs" or "copy".

fn check_supported(&self, _path: &Path) -> Result<()>

fn clone_dir(&self, src: &Path, dst: &Path) -> Result<()>

Makes dst a clone of src; dst must not exist.

fn create_dir(&self, path: &Path) -> Result<()>

Makes an empty directory a build writes into and later clones are made from.

fn remove_dir(&self, path: &Path) -> Result<()>

Removes a clone or generation directory and everything in it; a missing path is Ok(()).

fn rename_dir(&self, from: &Path, to: &Path) -> Result<()>

Renames a clone or generation directory within the same parent tree.

fn copy_dir(&self, src: &Path, dst: &Path) -> Result<()>

Makes dst (which must not exist) a template generation copied from src, a generation or a clone. Unlike clone_dir, the result must not depend on src staying around.

fn take_kept(&self) -> Vec<PathBuf>

Folders remove_dir left in place (and returned Ok) because clones still depend on them, since the last call; only ZFS keeps any. gc reports them and tries again later.

fn external_mountpoint(&self, _dataset: &str) -> Result<PathBuf>

ZFS only: where dataset, a dataset Mitosis does not own (a running source), is mounted.

fn snapshot_external(&self, _dataset: &str, _name: &str) -> Result<PathBuf>

ZFS only: takes the snapshot <dataset>@<name> and returns the folder it is read through.

fn destroy_external(&self, _dataset: &str, _name: &str) -> Result<()>

ZFS only: destroys the snapshot snapshot_external took.