Struct ImageEditor 

pub struct ImageEditor { /* private fields */ }

Explicit full-image editor for already materialized littlefs images.

This is an offline/host-side utility. Mounted APIs must not call it as a hidden fallback because it owns a complete image Vec.

Implementations

impl ImageEditor

pub fn open(image: Vec<u8>, cfg: Config) -> Result<Self>

pub fn used_blocks(&self) -> &[bool]

pub fn create_file(&mut self, path: &str, data: &[u8]) -> Result<&mut Self>

Creates a new file in an imported image.

The editor appends a normal littlefs CREATE/name/struct commit to the target metadata pair, choosing the create id by lexical order so later entries shift as they would in a directory log written by C. Small files are stored inline; larger files allocate CTZ blocks from the scanned reachable-block map and erase them before programming.

pub fn create_dir(&mut self, path: &str) -> Result<&mut Self>

Creates a new root-level directory in an imported image.

The directory receives a freshly allocated metadata pair containing a valid empty commit, then the root pair gets a CREATE/name/DIRSTRUCT commit that makes the child reachable. This mirrors the two pieces C needs to open the directory after remounting.

pub fn update_inline_file( &mut self, path: &str, data: &[u8], ) -> Result<&mut Self>

Appends an inline struct update for an existing root-level file.

Imported-image editing starts with this narrow operation because it does not need new data blocks or parent DIRSTRUCT rewrites. The update is still a real littlefs metadata commit appended to the active root side, so upstream C must be able to mount the edited image and read the new bytes.

pub fn update_file(&mut self, path: &str, data: &[u8]) -> Result<&mut Self>

pub fn update_attr( &mut self, path: &str, attr_type: u8, data: &[u8], ) -> Result<&mut Self>

pub fn delete_attr(&mut self, path: &str, attr_type: u8) -> Result<&mut Self>

pub fn delete_file(&mut self, path: &str) -> Result<&mut Self>

pub fn delete_dir(&mut self, path: &str) -> Result<&mut Self>

pub fn into_bytes(self) -> Vec<u8>

Trait Implementations

impl Clone for ImageEditor

fn clone(&self) -> ImageEditor

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ImageEditor

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.